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Gasket

SKU: H4N1156
tag Brand: Reliance Reliance brand replacement parts
sparkles Condition: New Aftermarket
shuffle Cross-References: 331285, 4N1156, 4N1156-F, CAP331285, FP-4N1156, H4N1156, M-4N1156
tractor Fits Equipment
Caterpillar 735 (AWR S/N Prefix) Caterpillar 735 (B1N S/N Prefix) Caterpillar 740 (AXM S/N Prefix) Caterpillar 740 (AZZ S/N Prefix)
engine Fits Engines
Caterpillar 3406C | 11N ESN Prefix Caterpillar 3406B | 11N ESN Prefix Caterpillar 3406 | 11N ESN Prefix
$184
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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.

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Gasket


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 (20)
Caterpillar 735 (AWR S/N Prefix)
Caterpillar 735 (B1N S/N Prefix)
Caterpillar 740 (AXM S/N Prefix)
Caterpillar 740 (AZZ S/N Prefix)
Caterpillar 740 (B1P S/N Prefix)
Caterpillar 740 (B1R S/N Prefix)
Caterpillar 769D (5SS S/N Prefix)
Caterpillar 769D (5TR S/N Prefix)
Caterpillar 769D (BBB S/N Prefix)
Caterpillar 770 (BZZ S/N Prefix)
Caterpillar 771D (6JR S/N Prefix)
Caterpillar 771D (6YS S/N Prefix)
Caterpillar 771D (BCA S/N Prefix)
Caterpillar 772B (64W S/N Prefix)
Caterpillar 773B (63W S/N Prefix)
Caterpillar 773D (7CS S/N Prefix)
Caterpillar 773D (7ER S/N Prefix)
Caterpillar 775D (6KR S/N Prefix)
Caterpillar 775D (8AS S/N Prefix)
Caterpillar 775E (BEC S/N Prefix)
road Cold Planers (3)
Caterpillar PM565 (3TK S/N Prefix)
Caterpillar PM565B (8GS S/N Prefix)
Caterpillar PR1000C (5XC S/N Prefix)
road Compactors (1)
Caterpillar 836 (7FR S/N Prefix)
bulldozer Crawler Dozers (21)
Caterpillar D10N (2YD S/N Prefix)
Caterpillar D10N (3SK S/N Prefix)
Caterpillar D400D (2JJ S/N Prefix)
Caterpillar D400D (8TF S/N Prefix)
Caterpillar D40D (2JJ S/N Prefix)
Caterpillar D40D (8TF S/N Prefix)
Caterpillar D8L (7YB S/N Prefix)
Caterpillar D8N (1XJ S/N Prefix)
Caterpillar D8N (5TJ S/N Prefix)
Caterpillar D8N (7TK S/N Prefix)
Caterpillar D8N (9TC S/N Prefix)
Caterpillar D8R (6YZ S/N Prefix)
Caterpillar D8R (7XM S/N Prefix)
Caterpillar D8R (AKA S/N Prefix)
Caterpillar D8T (J8B S/N Prefix)
Caterpillar D8T (KPZ S/N Prefix)
Caterpillar D9L (14Y S/N Prefix)
Caterpillar D9R (7TL S/N Prefix)
Caterpillar D9R (ABK S/N Prefix)
Caterpillar D9R (ACL S/N Prefix)
Caterpillar D9R (WDM S/N Prefix)
bulldozer Crawler Tractors (7)
Caterpillar MT835 (BAM S/N Prefix)
Caterpillar MT845 (BBP S/N Prefix)
Caterpillar MT865 (BDS S/N Prefix)
Caterpillar MTC835 (816 S/N Prefix)
Caterpillar MTC845 (817 S/N Prefix)
Caterpillar MTC855 (818 S/N Prefix)
Caterpillar MTC865 (819 S/N Prefix)
excavator Excavators (36)
Caterpillar 245B (1SJ S/N Prefix)
Caterpillar 245B (6MF S/N Prefix)
Caterpillar 245D (4LK S/N Prefix)
Caterpillar 365C (ELC S/N Prefix)
Caterpillar 365C (FEN S/N Prefix)
Caterpillar 365C (GSZ S/N Prefix)
Caterpillar 365C (GWC S/N Prefix)
Caterpillar 365C (MCS S/N Prefix)
Caterpillar 365C (MCY S/N Prefix)
Caterpillar 365C (MEM S/N Prefix)
Caterpillar 365C (PAR S/N Prefix)
Caterpillar 375 (1JM S/N Prefix)
Caterpillar 375 (6NK S/N Prefix)
Caterpillar 375 (6RL S/N Prefix)
Caterpillar 375 (8WJ S/N Prefix)
Caterpillar 375 (8XG S/N Prefix)
Caterpillar 375 (9WL S/N Prefix)
Caterpillar 375L (1JM S/N Prefix)
Caterpillar 375L (6RL S/N Prefix)
Caterpillar 375L (8WJ S/N Prefix)
Caterpillar 375L (8XG S/N Prefix)
Caterpillar 375L (9WL S/N Prefix)
Caterpillar 385B (ANS S/N Prefix)
Caterpillar 385B (BKF S/N Prefix)
Caterpillar 385B (BLY S/N Prefix)
Caterpillar 385B (CLS S/N Prefix)
Caterpillar 385B (FDL S/N Prefix)
Caterpillar 385B (MYA S/N Prefix)
Caterpillar 385B (RCD S/N Prefix)
Caterpillar 5080 (6XK S/N Prefix)
Caterpillar 5080 (8SL S/N Prefix)
Caterpillar 5090B (CLD S/N Prefix)
Caterpillar 5090B (SJY S/N Prefix)
Caterpillar 5110B (AAA S/N Prefix)
Caterpillar 5110B (AAK S/N Prefix)
Caterpillar 5110B (AAT S/N Prefix)
road Motor Graders (3)
Caterpillar 16G (93U S/N Prefix)
Caterpillar 16H (6ZJ S/N Prefix)
Caterpillar 24H (7KK S/N Prefix)
bulldozer Pipelayers (2)
Caterpillar 583T (CMX S/N Prefix)
Caterpillar 587T (FAT S/N Prefix)
road Road Reclaimers (5)
Caterpillar RM350 (5FK S/N Prefix)
Caterpillar RM500 (ASW S/N Prefix)
Caterpillar RR250 (6ED S/N Prefix)
Caterpillar SM350 (1RM S/N Prefix)
Caterpillar SS250 (6DD S/N Prefix)
road Scrapers (39)
Caterpillar 621E (6AB S/N Prefix)
Caterpillar 621F (4SK S/N Prefix)
Caterpillar 621F (5JK S/N Prefix)
Caterpillar 621F (9NL S/N Prefix)
Caterpillar 621G (ALP S/N Prefix)
Caterpillar 621G (CEN S/N Prefix)
Caterpillar 621G (DBB S/N Prefix)
Caterpillar 623E (5SG S/N Prefix)
Caterpillar 623E (6YF S/N Prefix)
Caterpillar 623F (5SG S/N Prefix)
Caterpillar 623F (6BK S/N Prefix)
Caterpillar 623G (ARW S/N Prefix)
Caterpillar 623G (CES S/N Prefix)
Caterpillar 623G (DBC S/N Prefix)
Caterpillar 627E (7CG S/N Prefix)
Caterpillar 627F (1DL S/N Prefix)
Caterpillar 627F (4YK S/N Prefix)
Caterpillar 627G (AXF S/N Prefix)
Caterpillar 627G (CEX S/N Prefix)
Caterpillar 627G (DBD S/N Prefix)
Caterpillar 631E (1AB S/N Prefix)
Caterpillar 631E (1NB S/N Prefix)
Caterpillar 631G (AWK S/N Prefix)
Caterpillar 631G (CLR S/N Prefix)
Caterpillar 633E (2PS S/N Prefix)
Caterpillar 637E (1FB S/N Prefix)
Caterpillar 637G (AXT S/N Prefix)
Caterpillar 637G (CEH S/N Prefix)
Caterpillar 651E (4YR S/N Prefix)
Caterpillar 651E (89Z S/N Prefix)
Caterpillar 657E (5YR S/N Prefix)
Caterpillar 657E (6PR S/N Prefix)
Caterpillar 657E (6TR S/N Prefix)
Caterpillar 657E (7KR S/N Prefix)
Caterpillar 657E (90Z S/N Prefix)
Caterpillar 657E (91Z S/N Prefix)
Caterpillar 657G (GER S/N Prefix)
Caterpillar 657G (W1E S/N Prefix)
Caterpillar 657G (W1F S/N Prefix)
forklift Telehandlers (2)
Caterpillar TH35E81 (SMS S/N Prefix)
Caterpillar TH35T (PBL S/N Prefix)
bulldozer Wheel Dozers (16)
Caterpillar 824C (85X S/N Prefix)
Caterpillar 824G (4SN S/N Prefix)
Caterpillar 824G (AWW S/N Prefix)
Caterpillar 824H (ASX S/N Prefix)
Caterpillar 825C (86X S/N Prefix)
Caterpillar 825G (AXB S/N Prefix)
Caterpillar 825H (AZW S/N Prefix)
Caterpillar 826C (87X S/N Prefix)
Caterpillar 826G (AYH S/N Prefix)
Caterpillar 826H (AWF S/N Prefix)
Caterpillar 834B (7BR S/N Prefix)
Caterpillar 834G (6GZ S/N Prefix)
Caterpillar 834G (BPC S/N Prefix)
Caterpillar 836G (7MZ S/N Prefix)
Caterpillar 836G (BRL S/N Prefix)
Caterpillar 844 (2KZ S/N Prefix)
bulldozer Wheel Loaders (22)
Caterpillar 578 (8HB S/N Prefix)
Caterpillar 589 (31Z S/N Prefix)
Caterpillar 980 (3HK S/N Prefix)
Caterpillar 980C (63X S/N Prefix)
Caterpillar 980F (3HK S/N Prefix)
Caterpillar 980F (5XJ S/N Prefix)
Caterpillar 980F (8CJ S/N Prefix)
Caterpillar 980F (8JN S/N Prefix)
Caterpillar 980G (2KR S/N Prefix)
Caterpillar 980G (AWH S/N Prefix)
Caterpillar 980G (AXG S/N Prefix)
Caterpillar 980G (AYT S/N Prefix)
Caterpillar 980H (JMS S/N Prefix)
Caterpillar 980H (MHG S/N Prefix)
Caterpillar 988F (2ZR S/N Prefix)
Caterpillar 988G (2TW S/N Prefix)
Caterpillar 988G (BNH S/N Prefix)
Caterpillar 990 (4FR S/N Prefix)
Caterpillar 990 (7HK S/N Prefix)
Caterpillar 992C (42X S/N Prefix)
Caterpillar 992C (49Z S/N Prefix)
Caterpillar 992D (7MJ S/N Prefix)
engine Engines (62)
Caterpillar 3406C | 11N ESN Prefix 6-cyl • Diesel
Caterpillar 3406B | 11N ESN Prefix 6-cyl • Diesel
Caterpillar 3406 | 11N ESN Prefix 6-cyl • Diesel
Caterpillar 3408 | 1EM ESN Prefix 8-cyl • Diesel
Caterpillar 3406E | 1LW ESN Prefix 6-cyl • Diesel
Caterpillar 3406E | 1MM ESN Prefix 6-cyl • Diesel
Caterpillar 3408 | 28V ESN Prefix 8-cyl • Diesel
Caterpillar 3406E | 2WS ESN Prefix 6-cyl • Diesel
Caterpillar 3412C | 3FZ ESN Prefix 12-cyl • Diesel
Caterpillar 3406B | 3ZJ ESN Prefix 6-cyl • Diesel
Caterpillar 3408C | 408 ESN Prefix 8-cyl • Diesel
Caterpillar 3406C | 41Z ESN Prefix 6-cyl • Diesel
Caterpillar 3408C | 48W ESN Prefix 8-cyl • Diesel
Caterpillar 3406 | 4TB ESN Prefix 6-cyl • Diesel
Caterpillar 3406E | 5DS ESN Prefix 6-cyl • Diesel
Caterpillar 3406E | 5EK ESN Prefix 6-cyl • Diesel
Caterpillar 3406B | 5KJ ESN Prefix 6-cyl • Diesel
Caterpillar 3408E | 5XD ESN Prefix 8-cyl • Diesel
Caterpillar 3408 | 5XD ESN Prefix 8-cyl • Diesel
Caterpillar C15 | 6NZ ESN Prefix 6-cyl • Diesel
Caterpillar 3406E | 6TS ESN Prefix 6-cyl • Diesel
Caterpillar 3412 | 73W ESN Prefix 12-cyl • Diesel
Caterpillar 3408 | 77M ESN Prefix 8-cyl • Diesel
Caterpillar C16 | 7CZ ESN Prefix 6-cyl • Diesel
Caterpillar 3406B | 7FB ESN Prefix 6-cyl • Diesel
Caterpillar 3408E | 7PR ESN Prefix 8-cyl • Diesel
Caterpillar 3456 | 7RC ESN Prefix 6-cyl • Diesel
Caterpillar 3408 | 7YB ESN Prefix 8-cyl • Diesel
Caterpillar 3412E | 80M ESN Prefix 12-cyl • Diesel
Caterpillar 3406 | 8PN ESN Prefix 6-cyl • Diesel
Caterpillar 3406 | 91U ESN Prefix 6-cyl • Diesel
Caterpillar 3408E | 99C ESN Prefix 8-cyl • Diesel
Caterpillar 3408C | 99C ESN Prefix 8-cyl • Diesel
Caterpillar 3412E | 9KS ESN Prefix 12-cyl • Diesel
Caterpillar C15 | 9NZ ESN Prefix 6-cyl • Diesel
Caterpillar C15 | A3A ESN Prefix 6-cyl • Diesel
Caterpillar 3406E | AYT ESN Prefix 6-cyl • Diesel
Caterpillar 3412C | BAK ESN Prefix 12-cyl • Diesel
Caterpillar 3412C | BAX ESN Prefix 12-cyl • Diesel
Caterpillar 3406E | BET ESN Prefix 6-cyl • Diesel
Caterpillar 3406 | BET ESN Prefix 6-cyl • Diesel
Caterpillar 3412E | BFT ESN Prefix 12-cyl • Diesel
Caterpillar 3406 | BKN ESN Prefix 6-cyl • Diesel
Caterpillar 3456 | BLC ESN Prefix 6-cyl • Diesel
Caterpillar 3456 | BNT ESN Prefix 6-cyl • Diesel
Caterpillar C15 ACERT | BXS ESN Prefix 6-cyl • Diesel
Caterpillar C15 | EGH ESN Prefix 6-cyl • Diesel
Caterpillar G3412 | GNA ESN Prefix 12-cyl • Gas/LPG
Caterpillar C15 | HAZ ESN Prefix 6-cyl • Diesel
Caterpillar C15 | JEP ESN Prefix 6-cyl • Diesel
Caterpillar C15 | KRA ESN Prefix 6-cyl • Diesel
Caterpillar C15 | LHX ESN Prefix 6-cyl • Diesel
Caterpillar C15 | MBN ESN Prefix 6-cyl • Diesel
Caterpillar C15 ACERT | MXS ESN Prefix 6-cyl • Diesel
Caterpillar C18 | NAY ESN Prefix 6-cyl • Diesel
Caterpillar C15 ACERT | NXS ESN Prefix 6-cyl • Diesel
Caterpillar C18 | P1N ESN Prefix 6-cyl • Diesel
Caterpillar C15 | RKS ESN Prefix 6-cyl • Diesel
Caterpillar C15 ACERT | SDP ESN Prefix 6-cyl • Diesel
Caterpillar C15 | SWE ESN Prefix 6-cyl • Diesel
Caterpillar C16 | W1A ESN Prefix 6-cyl • Diesel
Caterpillar C18 | WJH 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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