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Cylinder Head Bolt for Caterpillar 2421811

SKU: H2421811
tag Brand: Reliance Reliance brand replacement parts
sparkles Condition: New Aftermarket
shuffle Cross-References: 2421811, 242-1811
tractor Fits Equipment
Caterpillar 725 (B1L S/N Prefix) Caterpillar 725 (WWA S/N Prefix) Caterpillar 730 (B1M S/N Prefix) Caterpillar 730 (B1W S/N Prefix)
engine Fits Engines
Caterpillar 3126 | 1WM ESN Prefix Caterpillar 3126 | 8YL ESN Prefix Caterpillar C13 | A5K ESN Prefix
$1173
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box-check In Stock (58)
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The RF Engine Advantage
Family Operated Since 1975
Parts that meet or exceed OEM specifications. Guaranteed performance you can trust. Reliability built into every component.
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Same location and same phone number for the last 50 years. Same commitment to getting you the right parts at the right price.
RF Engine offers an expansive offering of new aftermarket, remanufactured, and used engines and engine parts all under one roof.

memo-circle-info Details

New aftermarket Caterpillar Head Bolt


medal 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.

tractor Fitment Guide

truck Articulated Dump Trucks (4)
Caterpillar 725 (B1L S/N Prefix)
Caterpillar 725 (WWA S/N Prefix)
Caterpillar 730 (B1M S/N Prefix)
Caterpillar 730 (B1W S/N Prefix)
bulldozer Crawler Dozers (1)
Caterpillar D8N (7TK S/N Prefix)
excavator Excavators (37)
Caterpillar 345C (ESD S/N Prefix)
Caterpillar 345C (M2R S/N Prefix)
Caterpillar 345C (M3E S/N Prefix)
Caterpillar 345C (M3F S/N Prefix)
Caterpillar 345C (PJW S/N Prefix)
Caterpillar 345C (TAJ S/N Prefix)
Caterpillar 345C (TDG S/N Prefix)
Caterpillar 345D (EEH S/N Prefix)
Caterpillar 345D (KFH S/N Prefix)
Caterpillar 345D (L5R S/N Prefix)
Caterpillar 345D (LKY S/N Prefix)
Caterpillar 345D (NEG S/N Prefix)
Caterpillar 345D (P5D S/N Prefix)
Caterpillar 345D (PBT S/N Prefix)
Caterpillar 345D (RAE S/N Prefix)
Caterpillar 345D (RAJ S/N Prefix)
Caterpillar 345D (RGG S/N Prefix)
Caterpillar 349D (DKN S/N Prefix)
Caterpillar 349D (FLA S/N Prefix)
Caterpillar 349D (GKF S/N Prefix)
Caterpillar 349D (JGB S/N Prefix)
Caterpillar 349D (KHS S/N Prefix)
Caterpillar 349D (KLH S/N Prefix)
Caterpillar 349D (MEN S/N Prefix)
Caterpillar 349D (NNF S/N Prefix)
Caterpillar 349D (PZG S/N Prefix)
Caterpillar 349D (RBJ S/N Prefix)
Caterpillar 349D (WTD S/N Prefix)
Caterpillar 349D2 (P27 S/N Prefix)
Caterpillar 349D2 (PFD S/N Prefix)
Caterpillar 349D2 (RAN S/N Prefix)
Caterpillar 349D2 (SDM S/N Prefix)
Caterpillar 349D2 (TAH S/N Prefix)
Caterpillar 349D2 (XAC S/N Prefix)
Caterpillar 349D2 (YAE S/N Prefix)
Caterpillar 349D2 (YAG S/N Prefix)
Caterpillar 349D2 (ZAE S/N Prefix)
road Motor Graders (4)
Caterpillar 14M (B9J S/N Prefix)
Caterpillar 14M (R9J S/N Prefix)
Caterpillar 16M (B9H S/N Prefix)
Caterpillar 16M (R9H S/N Prefix)
road Road Reclaimers (1)
Caterpillar RM300 (BWR S/N Prefix)
road Scrapers (4)
Caterpillar 621H (EAZ S/N Prefix)
Caterpillar 623H (EJD S/N Prefix)
Caterpillar 627H (DBW S/N Prefix)
Caterpillar 627H (LCT S/N Prefix)
forklift Telehandlers (2)
Caterpillar TH35C13I (PBW S/N Prefix)
Caterpillar TH35E81 (SMS S/N Prefix)
bulldozer Underground Mining Loaders (4)
Caterpillar R1600G (9YZ S/N Prefix)
Caterpillar R1600H (9SD S/N Prefix)
Caterpillar R1700G (SBR S/N Prefix)
Caterpillar R1700G (XBR S/N Prefix)
excavator Wheel Excavators (1)
Caterpillar W345C (R5K S/N Prefix)
bulldozer Wheel Loaders (14)
Caterpillar 966H (A6D S/N Prefix)
Caterpillar 966H (A6G S/N Prefix)
Caterpillar 966H (BJ6 S/N Prefix)
Caterpillar 966H (BS6 S/N Prefix)
Caterpillar 966H (FMW S/N Prefix)
Caterpillar 966H (RYF S/N Prefix)
Caterpillar 966H (TAL S/N Prefix)
Caterpillar 972H (A7D S/N Prefix)
Caterpillar 972H (A7G S/N Prefix)
Caterpillar 972H (GTA S/N Prefix)
Caterpillar 972H (LCC S/N Prefix)
Caterpillar 972H (NPE S/N Prefix)
Caterpillar 972H (WLA S/N Prefix)
Caterpillar 972H (WXZ S/N Prefix)
engine Engines (38)
Caterpillar 3126 | 1WM ESN Prefix 6-cyl • Diesel
Caterpillar 3126 | 8YL ESN Prefix 6-cyl • Diesel
Caterpillar C13 | A5K ESN Prefix 6-cyl • Diesel
Caterpillar C11 | B1M ESN Prefix 6-cyl • Diesel
Caterpillar C11 | B1W ESN Prefix 6-cyl • Diesel
Caterpillar C13 | CE3 ESN Prefix 6-cyl • Diesel
Caterpillar 3126 | CKM ESN Prefix 6-cyl • Diesel
Caterpillar C13 | DH4 ESN Prefix 6-cyl • Diesel
Caterpillar C13 | DKN ESN Prefix 6-cyl • Diesel
Caterpillar C13 | EMS ESN Prefix 6-cyl • Diesel
Caterpillar C13 | GB7 ESN Prefix 6-cyl • Diesel
Caterpillar C13 | H3G ESN Prefix 6-cyl • Diesel
Caterpillar C13 | JAM ESN Prefix 6-cyl • Diesel
Caterpillar C13 | JGB ESN Prefix 6-cyl • Diesel
Caterpillar C13 | KFH ESN Prefix 6-cyl • Diesel
Caterpillar C13 | KHS ESN Prefix 6-cyl • Diesel
Caterpillar C13 | LEE ESN Prefix 6-cyl • Diesel
Caterpillar C13 | LKY ESN Prefix 6-cyl • Diesel
Caterpillar C9.3 | M4X ESN Prefix 6-cyl • Diesel
Caterpillar C13 | MEN ESN Prefix 6-cyl • Diesel
Caterpillar 3406 | MHX ESN Prefix 6-cyl • Diesel
Caterpillar C13 | NH3 ESN Prefix 6-cyl • Diesel
Caterpillar C13 | NH4 ESN Prefix 6-cyl • Diesel
Caterpillar C13 | NR5 ESN Prefix 6-cyl • Diesel
Caterpillar C13 | P27 ESN Prefix 6-cyl • Diesel
Caterpillar C13 | P5D ESN Prefix 6-cyl • Diesel
Caterpillar C13 | PRM ESN Prefix 6-cyl • Diesel
Caterpillar C11 | RSX ESN Prefix 6-cyl • Diesel
Caterpillar C13 | RWT ESN Prefix 6-cyl • Diesel
Caterpillar C13 | S3C ESN Prefix 6-cyl • Diesel
Caterpillar C7 | SAP ESN Prefix 6-cyl • Diesel
Caterpillar C11 | TXE ESN Prefix 6-cyl • Diesel
Caterpillar 3176C | TXE ESN Prefix 6-cyl • Diesel
Caterpillar C13 | TXF ESN Prefix 6-cyl • Diesel
Caterpillar 3406 | TXF ESN Prefix 6-cyl • Diesel
Caterpillar C9.3 | TXM ESN Prefix 6-cyl • Diesel
Caterpillar C9.3 | TXX ESN Prefix 6-cyl • Diesel
Caterpillar C13 | TXX ESN Prefix 6-cyl • Diesel
exclamation 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.

shield-check 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.

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Fitment results are based on our application database. Always verify by side-by-side comparison before installation. Questions? Call 800-828-6943.

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