$0.00
13
Main Bearing Set (STD) for Cummins 3800872
Standard
$9210
2
Main Bearing Kit (.25mm) for Cummins J930337
.25mm
$9811
12
Main Bearing Set (.50mm) for Cummins RP1260
.50mm
$8774
0
Main Bearing Kit (.75mm) for Cummins RP1261
.75mm
$8181
0
Main Bearing Kit (1.00mm oversize) for Cummins RP1262
1.00mm oversize
$7698
Details
New aftermarket Cummins Main Bearing Set
Our aftermarket replacement parts are built to OEM-equivalent standards. They have been produced to meet or exceed original equipment specifications for material quality, dimensional tolerance, and field durability — the same rigors the factory part is designed to handle. The result is a component that installs like factory, performs like factory, and delivers long service life without the dealer price tag.
Warranty Information
Reliance Power Parts Warranty Policy
The Reliance Power Parts (RPP) warranty policy covers parts and labor necessary to repair a warrantable failure to the functional condition of the application that existed immediately prior to the failure, as detailed below. This warranty applies to direct customers of RPP only and is non-transferable.
Coverage Periods
- New Internal Engine Parts (Ag/Industrial): 1 year from invoice date, unlimited miles/hours
- Engine Overhaul Kits (Heavy-Duty On-Highway): 2 years from invoice date, unlimited miles/hours
- New Engine Accessories: 1 year from invoice date, parts replacement only
- Remanufactured Engine Accessories: 6 months from invoice date, parts replacement only
- Remanufactured Engine & Drivetrain Parts: 6 months from invoice date, parts replacement only
- Drivetrain Parts: 1 year from invoice date, parts replacement only
- Complete Engines, New Long Blocks & New Short Blocks (Reliance Manufactured): 6 months from invoice date, parts replacement only
- Remanufactured Long Blocks & Short Blocks (Reliance Manufactured): 90 days from invoice date, parts replacement only
Engine accessories include turbochargers, fuel injectors, hydraulic pumps, engine oil pumps, oil coolers, water pumps, and electrical components.
Manufacturer's Warranty Items
To serve a wider application base, RPP offers lower volume, rare application, and remanufactured parts from a variety of manufacturers. These parts will be noted on your invoice as subject to a "Manufacturer's Warranty" policy and are not covered under this policy. Engines, long blocks, medium blocks, and short blocks produced by any company other than Reliance are solely covered by the manufacturer's warranty. Contact your Reliance representative for details.
Parts & Labor Coverage
- Parts: Covered at current customer pricing using new or remanufactured RPP approved parts
- OEM/Outside Parts: When RPP parts are available, OEM parts will be credited at RPP pricing. Parts not available from RPP will be covered at billed rate with invoice required
- Labor: Offered at RPP's discretion, not to exceed published flat-rate times and maximum regional wholesale hourly labor rate
- Holiday/Overtime Rates: Not covered
What's Not Covered
This warranty does not cover failures resulting from:
- Owner or operator abuse or neglect
- Operation without adequate coolant, fuel, or lubricants
- Over-fueling or over-speeding
- Lack of maintenance of lubricating, coolant, or air intake systems
- Improper storage, starting, warm-up, run-in, or shut-down practices
Coverage does not include:
- Troubleshooting or diagnostic time
- Towing, transport, or down-time
- Rental fees or incidentals
- Delivery charges, travel, meals, or lodging
- Business losses, docking, or harbor charges
Responsibilities
- Installer: Ensure parts are correct for the application and install according to OEM procedures, specifications, and accepted industry standards
- Owner: Operate and maintain equipment as specified in OEM operation and maintenance manuals
How to File a Claim
- RPP must be notified prior to the end of the warranty period
- All warranty repairs must be authorized by RPP technical staff
- Request a Warranty Claim Form for the return of parts
- Return all claimed parts to the indicated location within 30 days of receiving a Return Merchandise Authorization
- Include failed parts, completed Warranty Claim Form, and copies of related work orders or invoices
- Ship parts freight pre-paid in a condition that makes examination possible
- Parts received without a Warranty Claim Form will be returned freight collect
Important Notes
- Professional Installation Required: We strongly recommend installation by a qualified technician to ensure proper break-in and operation
- Keep Your Records: Retain your invoice and service records for warranty claims
- Questions?: If you're unsure about coverage or need assistance, please contact us
The warranties set forth herein are the sole warranties made by RPP regarding its parts. RPP makes no other warranties, expressed or implied, of merchantability or fitness for a particular purpose.
Details
Cummins B3.3 Main Bearing Kit New Diesel RP1259
Our aftermarket replacement parts are built to OEM-equivalent standards. They have been produced to meet or exceed original equipment specifications for material quality, dimensional tolerance, and field durability — the same rigors the factory part is designed to handle. The result is a component that installs like factory, performs like factory, and delivers long service life without the dealer price tag.
Warranty Information
Reliance Power Parts Warranty Policy
The Reliance Power Parts (RPP) warranty policy covers parts and labor necessary to repair a warrantable failure to the functional condition of the application that existed immediately prior to the failure, as detailed below. This warranty applies to direct customers of RPP only and is non-transferable.
Coverage Periods
- New Internal Engine Parts (Ag/Industrial): 1 year from invoice date, unlimited miles/hours
- Engine Overhaul Kits (Heavy-Duty On-Highway): 2 years from invoice date, unlimited miles/hours
- New Engine Accessories: 1 year from invoice date, parts replacement only
- Remanufactured Engine Accessories: 6 months from invoice date, parts replacement only
- Remanufactured Engine & Drivetrain Parts: 6 months from invoice date, parts replacement only
- Drivetrain Parts: 1 year from invoice date, parts replacement only
- Complete Engines, New Long Blocks & New Short Blocks (Reliance Manufactured): 6 months from invoice date, parts replacement only
- Remanufactured Long Blocks & Short Blocks (Reliance Manufactured): 90 days from invoice date, parts replacement only
Engine accessories include turbochargers, fuel injectors, hydraulic pumps, engine oil pumps, oil coolers, water pumps, and electrical components.
Manufacturer's Warranty Items
To serve a wider application base, RPP offers lower volume, rare application, and remanufactured parts from a variety of manufacturers. These parts will be noted on your invoice as subject to a "Manufacturer's Warranty" policy and are not covered under this policy. Engines, long blocks, medium blocks, and short blocks produced by any company other than Reliance are solely covered by the manufacturer's warranty. Contact your Reliance representative for details.
Parts & Labor Coverage
- Parts: Covered at current customer pricing using new or remanufactured RPP approved parts
- OEM/Outside Parts: When RPP parts are available, OEM parts will be credited at RPP pricing. Parts not available from RPP will be covered at billed rate with invoice required
- Labor: Offered at RPP's discretion, not to exceed published flat-rate times and maximum regional wholesale hourly labor rate
- Holiday/Overtime Rates: Not covered
What's Not Covered
This warranty does not cover failures resulting from:
- Owner or operator abuse or neglect
- Operation without adequate coolant, fuel, or lubricants
- Over-fueling or over-speeding
- Lack of maintenance of lubricating, coolant, or air intake systems
- Improper storage, starting, warm-up, run-in, or shut-down practices
Coverage does not include:
- Troubleshooting or diagnostic time
- Towing, transport, or down-time
- Rental fees or incidentals
- Delivery charges, travel, meals, or lodging
- Business losses, docking, or harbor charges
Responsibilities
- Installer: Ensure parts are correct for the application and install according to OEM procedures, specifications, and accepted industry standards
- Owner: Operate and maintain equipment as specified in OEM operation and maintenance manuals
How to File a Claim
- RPP must be notified prior to the end of the warranty period
- All warranty repairs must be authorized by RPP technical staff
- Request a Warranty Claim Form for the return of parts
- Return all claimed parts to the indicated location within 30 days of receiving a Return Merchandise Authorization
- Include failed parts, completed Warranty Claim Form, and copies of related work orders or invoices
- Ship parts freight pre-paid in a condition that makes examination possible
- Parts received without a Warranty Claim Form will be returned freight collect
Important Notes
- Professional Installation Required: We strongly recommend installation by a qualified technician to ensure proper break-in and operation
- Keep Your Records: Retain your invoice and service records for warranty claims
- Questions?: If you're unsure about coverage or need assistance, please contact us
The warranties set forth herein are the sole warranties made by RPP regarding its parts. RPP makes no other warranties, expressed or implied, of merchantability or fitness for a particular purpose.
Details
New aftermarket Cummins Main Bearing Set
Our aftermarket replacement parts are built to OEM-equivalent standards. They have been produced to meet or exceed original equipment specifications for material quality, dimensional tolerance, and field durability — the same rigors the factory part is designed to handle. The result is a component that installs like factory, performs like factory, and delivers long service life without the dealer price tag.
Warranty Information
Reliance Power Parts Warranty Policy
The Reliance Power Parts (RPP) warranty policy covers parts and labor necessary to repair a warrantable failure to the functional condition of the application that existed immediately prior to the failure, as detailed below. This warranty applies to direct customers of RPP only and is non-transferable.
Coverage Periods
- New Internal Engine Parts (Ag/Industrial): 1 year from invoice date, unlimited miles/hours
- Engine Overhaul Kits (Heavy-Duty On-Highway): 2 years from invoice date, unlimited miles/hours
- New Engine Accessories: 1 year from invoice date, parts replacement only
- Remanufactured Engine Accessories: 6 months from invoice date, parts replacement only
- Remanufactured Engine & Drivetrain Parts: 6 months from invoice date, parts replacement only
- Drivetrain Parts: 1 year from invoice date, parts replacement only
- Complete Engines, New Long Blocks & New Short Blocks (Reliance Manufactured): 6 months from invoice date, parts replacement only
- Remanufactured Long Blocks & Short Blocks (Reliance Manufactured): 90 days from invoice date, parts replacement only
Engine accessories include turbochargers, fuel injectors, hydraulic pumps, engine oil pumps, oil coolers, water pumps, and electrical components.
Manufacturer's Warranty Items
To serve a wider application base, RPP offers lower volume, rare application, and remanufactured parts from a variety of manufacturers. These parts will be noted on your invoice as subject to a "Manufacturer's Warranty" policy and are not covered under this policy. Engines, long blocks, medium blocks, and short blocks produced by any company other than Reliance are solely covered by the manufacturer's warranty. Contact your Reliance representative for details.
Parts & Labor Coverage
- Parts: Covered at current customer pricing using new or remanufactured RPP approved parts
- OEM/Outside Parts: When RPP parts are available, OEM parts will be credited at RPP pricing. Parts not available from RPP will be covered at billed rate with invoice required
- Labor: Offered at RPP's discretion, not to exceed published flat-rate times and maximum regional wholesale hourly labor rate
- Holiday/Overtime Rates: Not covered
What's Not Covered
This warranty does not cover failures resulting from:
- Owner or operator abuse or neglect
- Operation without adequate coolant, fuel, or lubricants
- Over-fueling or over-speeding
- Lack of maintenance of lubricating, coolant, or air intake systems
- Improper storage, starting, warm-up, run-in, or shut-down practices
Coverage does not include:
- Troubleshooting or diagnostic time
- Towing, transport, or down-time
- Rental fees or incidentals
- Delivery charges, travel, meals, or lodging
- Business losses, docking, or harbor charges
Responsibilities
- Installer: Ensure parts are correct for the application and install according to OEM procedures, specifications, and accepted industry standards
- Owner: Operate and maintain equipment as specified in OEM operation and maintenance manuals
How to File a Claim
- RPP must be notified prior to the end of the warranty period
- All warranty repairs must be authorized by RPP technical staff
- Request a Warranty Claim Form for the return of parts
- Return all claimed parts to the indicated location within 30 days of receiving a Return Merchandise Authorization
- Include failed parts, completed Warranty Claim Form, and copies of related work orders or invoices
- Ship parts freight pre-paid in a condition that makes examination possible
- Parts received without a Warranty Claim Form will be returned freight collect
Important Notes
- Professional Installation Required: We strongly recommend installation by a qualified technician to ensure proper break-in and operation
- Keep Your Records: Retain your invoice and service records for warranty claims
- Questions?: If you're unsure about coverage or need assistance, please contact us
The warranties set forth herein are the sole warranties made by RPP regarding its parts. RPP makes no other warranties, expressed or implied, of merchantability or fitness for a particular purpose.
Details
Cummins B3.3 Main Bearing Kit New Diesel RP1261
Our aftermarket replacement parts are built to OEM-equivalent standards. They have been produced to meet or exceed original equipment specifications for material quality, dimensional tolerance, and field durability — the same rigors the factory part is designed to handle. The result is a component that installs like factory, performs like factory, and delivers long service life without the dealer price tag.
Warranty Information
Reliance Power Parts Warranty Policy
The Reliance Power Parts (RPP) warranty policy covers parts and labor necessary to repair a warrantable failure to the functional condition of the application that existed immediately prior to the failure, as detailed below. This warranty applies to direct customers of RPP only and is non-transferable.
Coverage Periods
- New Internal Engine Parts (Ag/Industrial): 1 year from invoice date, unlimited miles/hours
- Engine Overhaul Kits (Heavy-Duty On-Highway): 2 years from invoice date, unlimited miles/hours
- New Engine Accessories: 1 year from invoice date, parts replacement only
- Remanufactured Engine Accessories: 6 months from invoice date, parts replacement only
- Remanufactured Engine & Drivetrain Parts: 6 months from invoice date, parts replacement only
- Drivetrain Parts: 1 year from invoice date, parts replacement only
- Complete Engines, New Long Blocks & New Short Blocks (Reliance Manufactured): 6 months from invoice date, parts replacement only
- Remanufactured Long Blocks & Short Blocks (Reliance Manufactured): 90 days from invoice date, parts replacement only
Engine accessories include turbochargers, fuel injectors, hydraulic pumps, engine oil pumps, oil coolers, water pumps, and electrical components.
Manufacturer's Warranty Items
To serve a wider application base, RPP offers lower volume, rare application, and remanufactured parts from a variety of manufacturers. These parts will be noted on your invoice as subject to a "Manufacturer's Warranty" policy and are not covered under this policy. Engines, long blocks, medium blocks, and short blocks produced by any company other than Reliance are solely covered by the manufacturer's warranty. Contact your Reliance representative for details.
Parts & Labor Coverage
- Parts: Covered at current customer pricing using new or remanufactured RPP approved parts
- OEM/Outside Parts: When RPP parts are available, OEM parts will be credited at RPP pricing. Parts not available from RPP will be covered at billed rate with invoice required
- Labor: Offered at RPP's discretion, not to exceed published flat-rate times and maximum regional wholesale hourly labor rate
- Holiday/Overtime Rates: Not covered
What's Not Covered
This warranty does not cover failures resulting from:
- Owner or operator abuse or neglect
- Operation without adequate coolant, fuel, or lubricants
- Over-fueling or over-speeding
- Lack of maintenance of lubricating, coolant, or air intake systems
- Improper storage, starting, warm-up, run-in, or shut-down practices
Coverage does not include:
- Troubleshooting or diagnostic time
- Towing, transport, or down-time
- Rental fees or incidentals
- Delivery charges, travel, meals, or lodging
- Business losses, docking, or harbor charges
Responsibilities
- Installer: Ensure parts are correct for the application and install according to OEM procedures, specifications, and accepted industry standards
- Owner: Operate and maintain equipment as specified in OEM operation and maintenance manuals
How to File a Claim
- RPP must be notified prior to the end of the warranty period
- All warranty repairs must be authorized by RPP technical staff
- Request a Warranty Claim Form for the return of parts
- Return all claimed parts to the indicated location within 30 days of receiving a Return Merchandise Authorization
- Include failed parts, completed Warranty Claim Form, and copies of related work orders or invoices
- Ship parts freight pre-paid in a condition that makes examination possible
- Parts received without a Warranty Claim Form will be returned freight collect
Important Notes
- Professional Installation Required: We strongly recommend installation by a qualified technician to ensure proper break-in and operation
- Keep Your Records: Retain your invoice and service records for warranty claims
- Questions?: If you're unsure about coverage or need assistance, please contact us
The warranties set forth herein are the sole warranties made by RPP regarding its parts. RPP makes no other warranties, expressed or implied, of merchantability or fitness for a particular purpose.
Details
Cummins B3.3 Main Bearing Kit New Diesel RP1262
Our aftermarket replacement parts are built to OEM-equivalent standards. They have been produced to meet or exceed original equipment specifications for material quality, dimensional tolerance, and field durability — the same rigors the factory part is designed to handle. The result is a component that installs like factory, performs like factory, and delivers long service life without the dealer price tag.
Warranty Information
Reliance Power Parts Warranty Policy
The Reliance Power Parts (RPP) warranty policy covers parts and labor necessary to repair a warrantable failure to the functional condition of the application that existed immediately prior to the failure, as detailed below. This warranty applies to direct customers of RPP only and is non-transferable.
Coverage Periods
- New Internal Engine Parts (Ag/Industrial): 1 year from invoice date, unlimited miles/hours
- Engine Overhaul Kits (Heavy-Duty On-Highway): 2 years from invoice date, unlimited miles/hours
- New Engine Accessories: 1 year from invoice date, parts replacement only
- Remanufactured Engine Accessories: 6 months from invoice date, parts replacement only
- Remanufactured Engine & Drivetrain Parts: 6 months from invoice date, parts replacement only
- Drivetrain Parts: 1 year from invoice date, parts replacement only
- Complete Engines, New Long Blocks & New Short Blocks (Reliance Manufactured): 6 months from invoice date, parts replacement only
- Remanufactured Long Blocks & Short Blocks (Reliance Manufactured): 90 days from invoice date, parts replacement only
Engine accessories include turbochargers, fuel injectors, hydraulic pumps, engine oil pumps, oil coolers, water pumps, and electrical components.
Manufacturer's Warranty Items
To serve a wider application base, RPP offers lower volume, rare application, and remanufactured parts from a variety of manufacturers. These parts will be noted on your invoice as subject to a "Manufacturer's Warranty" policy and are not covered under this policy. Engines, long blocks, medium blocks, and short blocks produced by any company other than Reliance are solely covered by the manufacturer's warranty. Contact your Reliance representative for details.
Parts & Labor Coverage
- Parts: Covered at current customer pricing using new or remanufactured RPP approved parts
- OEM/Outside Parts: When RPP parts are available, OEM parts will be credited at RPP pricing. Parts not available from RPP will be covered at billed rate with invoice required
- Labor: Offered at RPP's discretion, not to exceed published flat-rate times and maximum regional wholesale hourly labor rate
- Holiday/Overtime Rates: Not covered
What's Not Covered
This warranty does not cover failures resulting from:
- Owner or operator abuse or neglect
- Operation without adequate coolant, fuel, or lubricants
- Over-fueling or over-speeding
- Lack of maintenance of lubricating, coolant, or air intake systems
- Improper storage, starting, warm-up, run-in, or shut-down practices
Coverage does not include:
- Troubleshooting or diagnostic time
- Towing, transport, or down-time
- Rental fees or incidentals
- Delivery charges, travel, meals, or lodging
- Business losses, docking, or harbor charges
Responsibilities
- Installer: Ensure parts are correct for the application and install according to OEM procedures, specifications, and accepted industry standards
- Owner: Operate and maintain equipment as specified in OEM operation and maintenance manuals
How to File a Claim
- RPP must be notified prior to the end of the warranty period
- All warranty repairs must be authorized by RPP technical staff
- Request a Warranty Claim Form for the return of parts
- Return all claimed parts to the indicated location within 30 days of receiving a Return Merchandise Authorization
- Include failed parts, completed Warranty Claim Form, and copies of related work orders or invoices
- Ship parts freight pre-paid in a condition that makes examination possible
- Parts received without a Warranty Claim Form will be returned freight collect
Important Notes
- Professional Installation Required: We strongly recommend installation by a qualified technician to ensure proper break-in and operation
- Keep Your Records: Retain your invoice and service records for warranty claims
- Questions?: If you're unsure about coverage or need assistance, please contact us
The warranties set forth herein are the sole warranties made by RPP regarding its parts. RPP makes no other warranties, expressed or implied, of merchantability or fitness for a particular purpose.
Fitment Guide
This item is either a universal-fit component or does not currently have specific equipment fitment data assigned to it. Universal and general-purpose parts — and some kits — may fit a wide range of applications not individually listed here. If you'd like help confirming this item fits your specific machine or engine, please contact our team and we'll be glad to assist.
While every effort has been made to ensure the accuracy of the fitment information listed above, it is ultimately the responsibility of the installing mechanic to perform a side-by-side comparison of the replacement part with the original to verify proper fit before installation. RF Engine is not liable for labor or consequential damages resulting from incorrect application.
Recently Viewed
Caterpillar 3126 (3-Valve) Reman Long Block Supreme | 64F8M072SB
From $11,14469
Custom built to your ESN, call for details
Remanufactured
Login or register to save to your bulletin board
Piston Pin Bushing for Cummins 4891178
$1087
99+
1407 Available and in stock.
New Aftermarket
Login or register to save to your bulletin board
Valve Train Kit for Massey Ferguson RP979115
$14933
99+
999 Available and in stock.
New Aftermarket
Login or register to save to your bulletin board
Kubota D1503 (Tier 2, L3130) Complete Reman Drop-In Engine | D1503KUBL3130
From $4,56339
Custom built to your ESN, call for details
Remanufactured
Login or register to save to your bulletin board
Caterpillar C9 Reman Long Block | 72G4B088SB
From $12,41849
Custom built to your ESN, call for details
Remanufactured
Login or register to save to your bulletin board
Reman Turbocharger for Case 504387720R
$12,53200
0
Sorry, currently out of stock.
Remanufactured
Login or register to save to your bulletin board
Cummins Oil Filter Head
$16580
15
15 Available and in stock.
New Aftermarket
Login or register to save to your bulletin board
Exhaust Valve for International 1810086
$2595
13
13 Available and in stock.
New Aftermarket
Login or register to save to your bulletin board
Piston Pin Bushing for International 427218
$4617
0
Sorry, currently out of stock.
New Aftermarket
Login or register to save to your bulletin board
Valve Cover Washer
$1043
0
Sorry, currently out of stock.
New Aftermarket
Login or register to save to your bulletin board
Piston & Rings for Massey Ferguson 32-183
$18420
0
Sorry, currently out of stock.
New Aftermarket
Login or register to save to your bulletin board
Detroit Diesel 14.0L 60-Series (Cylinder Kit 23530661) Inframe Engine Rebuild Kit
$3,98000
99+
999 Available and in stock.
New Aftermarket
Login or register to save to your bulletin board
All specifications and numbers are provided for reference only and should be independently verified before use. While we guarantee our parts match their descriptions and accept returns for any discrepancies, we cannot be held liable for installation costs, modifications, or consequential damages. Questions about compatibility? Contact our parts experts at 800-828-6943, sales@dieselcranks.com, or via live chat, Mon-Fri 8am-5pm EST.
