5P1066 | Caterpillar 6.25"/D353/D379/D398/D399 Cylinder Head Gasket Set, New

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5P1066 | Caterpillar 6.25"/D353/D379/D398/D399 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-5P1066 — Gasket Kit - Cylinder Head
Line No Kit Item No Item Name Qty UOM
1 M-1A7427 Lock - Nut 9 EA
2 M-1H9027 Gasket 2 EA
3 M-4H2494 Sleeve 8 EA
4 M-4H5952 Gasket 16 EA
5 M-5H6733 Seal - O-ring 6 EA
6 M-0L1160 2 EA
7 M-4L6216 Gasket 1 EA
8 M-4L7890 Gasket 8 EA
9 M-4L8097 Gasket 16 EA
10 M-4L8128 Gasket 5 EA
11 M-4L8337 Seal - O-ring - Air Compressor 4 EA
12 M-2A3278 Gasket 2 EA
13 M-5L9842 Gasket 2 EA
14 M-6L1650 Seal - O-ring 1 EA
15 M-6L1651 Seal - O-ring 17 EA
16 M-6L4497 Gasket 8 EA
17 M-6L7816 Seal - O-ring 16 EA
18 M-6L7817 Seal - O-ring 32 EA
19 M-6L9606 2 EA
20 M-7L2149 Gasket 32 EA
21 M-5B3718 Seal - O-Ring 16 EA
22 M-7L6580 Seal - O-ring 16 EA
23 M-8M2331 Gasket 1 EA
24 M-8M4437 Seal - O-ring 8 EA
25 M-9M4217 Seal - O-ring 2 EA
26 M-2N1500 Gasket 4 EA
27 M-2N3597 Seal - Rubber 8 EA
28 M-3N3220 Gasket - Cylinder Head 8 EA
29 M-1S4295 Gasket - Turbocharger 2 EA
30 M-2S2251 Seal - O-ring 1 EA
31 M-3S9643 Seal - Thermostat 6 EA
32 M-7B280 Seal 4 EA
33 MCB6B6224 Ferrule and Seal Assy 64 EA
34 MCB7B2420 Ferrule and Seal Assy 48 EA
35 M-8N7780 Shield 16 EA
36 M-3F4550 Lock 16 EA
37 M-4F5607 Seal - O-Ring 16 EA
38 M-6F1069 Seal - O-Ring 16 EA
39 M-8F4994 Seal - O-ring 16 EA
40 M-8F9206 Seal - O-ring 32 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.

  • 5P1066

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