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4955523 | Cummins B-Series Upper Gasket Set

Pricing: $306.30

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These aren't your grandpa?s gaskets.

A blown gasket can be anything from a minor annoyance to leaving you stranded on the side of the road. You don?t have to put up with whatever gasket you can get your hands on; our gaskets are engineered to withstand anything you throw at it and last well into another million miles. No doubt about it, these are some of the best gaskets on the market.

It's no secret that diesel engine parts can cost an arm and a leg. That?s where HHP steps in. We offer premium aftermarket gaskets at up to 50% off OEM prices. While most believe aftermarket retailers sell cheap gaskets with zero warranty, packed in a dusty box from who knows where, HHP is here to kick that stereotype to the curb. HHP provides gaskets fabricated for unstoppable performance and a 2-Year Parts and Labor Warranty. How?s that for an aftermarket part?

Need a little extra proof? Let's talk shop.

  • Why sacrifice quality? This brand new gasket set is manufactured in an ISO 9001: 2008 certified facility, ensuring exceptional quality and consistency.
  • Plus, proper materials are used to ensure optimal performance in functionality and sealability. Keeping your fluids where they need to be is vital and these gaskets will do the job.
  • Our brand new Cummins gasket sets have USA made sealing products with 100% asbestos-free material. You can't beat that!
  • To top it off, OE specifications are met with equal or better quality compared to the OE at a much lower price. No doubt you will be saving money!


  • (1) Upper Gasket Set
    • (1) O-Ring Seal
    • (1) Seal
    • (6) Injector Seals
    • (1) O-Ring Coolant Seal
    • (2) O-Ring Seals
    • (1) O-Ring Seal
    • (2) Rectangular Ring Seals
    • (1) Cover Plate Gasket
    • (1) Intake Manifold Cover Gasket
    • (2) Connection Gaskets
    • (1) Rocker Cover Gasket
    • (1) O-Ring Turbo Seal
    • (1) Thermostat Seal
    • (24) Valve Stem Seals
    • (1) Rocker Cover Housing Gasket
    • (12) Sealing Washers
    • (1) Sealing Washer
    • (1) Sealing Washer
    • (14) Sealing Washers
    • (1) O-Ring Seal
    • (1) Connection Gasket
    • (4) EGR Valve Gaskets
    • (1) HPI Green O-Ring Seal
    • (1) Accessory Drive Cover Gasket
    • (1) Valve Cover Gasket
    • (1) Cylinder Head Gasket
    • (1) EGR Transfer Tube Gasket
    • (6) O-Ring Seals
    • (1) Oil Drain Gasket
    • (6) Exhaust Manifold Gaskets
    • (3) O-Ring Seals
    • (1) O-Ring Seal
    • (1) O-Ring Seal
    • (1) O-Ring Seal
    • (1) Rectangular Ring Seal
    • (2) Rectangular Ring Seals


2-Year Parts and Labor Warranty

OEM Applications:

  • 4955523

Technical Data

6.7L RGT-CM2150/2250
Fits Applications:
ISB/QSB 4-Valve

Cummins B-Series Engine Specifications:
Year: 1983-1998
Liter: 3.9
CID: 239
Cylinders: L4
Bore/Stroke: 4.0157-4.0173" (101.999-102.039 MM)4.724" (119.990 MM)
Compression Ratio: 16.3:1 RATIO
Firing Ratio: 1-3-4-2

Tune-Up Specifications:
Oil Pressure At Idle: 30 PSI @ 1300RPM
Intake Valve Lash: .010" COLD
Exhaust Valve Lash:.025" COLD (.635 MM)

Signs that you should replace your gaskets include engine overheating and thick, white steam


  • P023529
  • P023529
  • HHP
  • New


Shipping Information

  • Item Requires Shipping
  • 4.6 lbs.
  • W10.0000” x H1.5000” x L36.0000”

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