4089781 | Cummins B/ISB/QSB Upper Engine Gasket Set, New

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4089781 | Cummins B/ISB/QSB Upper Engine Gasket Set, New

Product Overview
This heavy-duty replacement component is engineered to meet or exceed OEM specifications for reliable performance and long service life in demanding diesel engine applications. Each unit is manufactured with strict quality control standards to help ensure proper fitment and durability in professional diesel engine rebuild environments.

Kit Contents

Kit: M-4089781 — Gasket Set - Upper Engine
Line No Kit Item No Item Name Qty UOM
1 M-2830704 Gasket - Cylinder Head 1 EA
2 M-4890926 Seal - O-ring 6 EA
3 M-3942454 Seal - O-ring - Thermostat 1 EA
4 M-4894095 Seal - O-ring 12 EA
5 M-4898372 Seal - O-ring 1 EA
6 M-3963983 Washer - Sealing 2 EA
7 M-3865398 Seal - O-ring 2 EA
8 M-4891288 Gasket - Oil Drain - Turbo 1 EA
9 M-3928624 Seal - O-ring 2 EA
10 M-4895461 Gasket - Filler Cap 1 EA
11 M-4893741 Washer - Sealing 6 EA
12 M-2830705 Gasket - Cylinder Head 1 EA
13 M-3066211 Seal - O-ring - Turbocharger 1 EA
14 CG69 PR 1 EA
15 M-4899231 Gasket - Rocker Lever Housing 1 EA
17 M-4899226 Gasket - Valve Cover 1 EA
18 M-4899239 Isolator - Noise 6 EA
19 M-2830444 Gasket - Exh Manifold 6 EA
20 M-3932475 Gasket - Turbocharger 1 EA
21 M-3919369 Gasket - Turbocharger 1 EA
22 M-4899689 Washer - Plain 6 EA
23 CUM-CGK-202-WAR-0001 1 EA
24 CG69PAD 2 EA
25 LABEL 4X12 1 EA

Key Features

  • OE-style fitment for proper installation
  • Durable construction for demanding operating conditions
  • Engineered for dependable heavy-duty diesel performance

About Interstate-McBee
Interstate-McBee is a trusted manufacturer of premium aftermarket diesel engine components. Products are manufactured under ISO 9001:2015 quality management standards and are engineered to meet or exceed OEM specifications. With decades of experience supporting the diesel and gas engine industries, Interstate-McBee components are designed to deliver consistent quality, reliability, and performance for heavy-duty engine applications.

Any mention of OEM names or OEM product ID numbers/descriptions/model numbers is intended for identification purposes only and does not indicate that it is an OEM part.

  • 4089781

Free Standard ground shipping within the Continental US! If you need your parts in a hurry and would like to get them overnighted or expedited please give us a call and our sales reps will let you know what options are available!

2 year warranty applies!

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Buy Now, Pay Later

Interest-Free Up To 12M

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Above The Line

Customer Service Guaranteed

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Free Ground Shipping

On All Orders!

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Premium Quality Parts

Manufacturing Since 1973

offer

Buy Now, Pay Later

Interest-Free Up To 12M

offer

Above The Line

Customer Service Guaranteed

offer

Free Ground Shipping

On All Orders!

offer

Premium Quality Parts

Manufacturing Since 1973