4378971 | Caterpillar C9 Single Cylinder Head Gasket Set, New

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4378971 | Caterpillar C9 Single Cylinder Head 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-4378971 — Gasket Set - Cylinder Head
Line No Kit Item No Item Name Qty UOM
1 M-1142687 Seal - Oil Lines Group 1 EA
2 M-2854106 Seal - Rocker Cover 1 EA
3 M-3107255 Seal - O-ring 6 EA
4 M-3107257 Seal - O-ring 6 EA
5 M-3E8017 Lock - Nut - Turbocharger 4 EA
6 M-3J1907 Seal - O-Ring Fuel Line 1 EA
7 M-3K360 Seal - O-Ring 2 EA
8 M-4G4972 Seal - Plug 1 EA
9 M-6V6609 Seal - O-ring 1 EA
10 M-6V8398 Seal - O-ring 1 EA
11 M-7F8268 Seal - O-ring 1 EA
12 M-9X8281 Stud - Exh Manifold 4 EA
13 M-7M7273 Gasket - Turbocharger 1 EA
14 M-1871315 Gasket - Cylinder Head 1 EA
15 M-1922133 1 EA
16 M-1978419 Gasket - Turbo Lines Group 1 EA
17 M-2147568 Seal - O-ring 5 EA
18 M-2287096 Seal - Plug 1 EA
19 M-2385080 Seal - O-ring 1 EA
20 M-2683490 Seal - Valve Cover 1 EA
21 CG69 PR 1 EA
22 CG69PAD 2 EA
23 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.

  • 4378971

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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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