4089758R | Cummins C/ISC/QSC/ISL/QSL Custom Upper Gasket Set, New

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4089758R | Cummins C/ISC/QSC/ISL/QSL Custom Upper 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-4089758R — Gasket Set - Upper - Custom
Line No Kit Item No Item Name Qty UOM
1 M-3046201 Seal - O-Ring 1 EA
2 M-3922794 Seal - O-ring - Turbo House 1 EA
3 M-3931824 Seal - O-ring 1 EA
4 M-3937142 Injector Seal - Mid Range XPI 6 EA
5 M-5269779 Gasket - Exh Manifold 6 EA
8 M-3959798 Gasket - Valve Cover 1 EA
9 M-3963983 Washer - Sealing 2 EA
10 M-3963988 Washer - Sealing 5 EA
11 M-3963990 Washer - Sealing 23 EA
12 M-3073966 Seal - Breather Mounting 1 EA
13 M-3966708 Gasket - Rocker Lever Housing 1 EA
14 M-3967891 Gasket - Connection 2 EA
15 M-4010519 Seal - O-ring 3 EA
16 M-4010643 Seal - O-ring 2 EA
17 M-4062328 Seal - O-ring 6 EA
18 M-4890926 Seal - O-ring 6 EA
19 M-4934280 Washer - Sealing 1 EA
20 M-3627695 Seal - O-ring 1 EA
22 CG69 PR 1 EA
24 M-5448124 Seal - Valve Stem 24 EA
26 M-4937032 Gasket - Connection 1 EA
27 M-3973512 Seal - O-ring 1 EA
28 M-3678603 Seal - O-ring 2 EA
29 M-3682177 Seal - O-ring 1 EA
30 M-3755843 Gasket - Turbocharger 1 EA
31 M-3883284 Seal - O-ring 1 EA
32 M-3901356 Gasket 1 EA
33 M-3920773 Gasket 1 EA
34 M-3685614 Gasket - Acc Drive Support 1 EA
35 LABEL 4X12 1 EA
36 M-5264569 Gasket - Oil Drain 1 EA
37 CG69PAD 2 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.

    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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    offer

    Buy Now, Pay Later

    Interest-Free Up To 12M

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    Above The Line

    Customer Service Guaranteed

    offer

    Free Ground Shipping

    On All Orders!

    offer

    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