1P3747 | Caterpillar 6.25"/D353/D379/D398/D399 Cylinder Head Gasket Set, New

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1P3747 | 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-1P3747 — Gasket Kit - Cylinder Head
Line No Kit Item No Item Name Qty UOM
1 M-4H2494 Sleeve 9 EA
2 M-4H2719 Gasket 1 EA
3 M-4H3376 Gasket 1 EA
4 M-4L3848 Seal - Thermostat 2 EA
5 M-4L8337 Seal - O-ring - Air Compressor 2 EA
6 M-4L9556 Gasket 1 EA
7 M-4S9155 Gasket 2 EA
8 M-5B2151 Gasket 2 EA
9 M-5B3718 Seal - O-Ring 6 EA
10 M-5H1039 Seal - O-ring 2 EA
11 M-1S4295 Gasket - Turbocharger 1 EA
12 M-5H1190 Seal 3 EA
13 M-5H2912 Gasket 6 EA
14 M-5L1687 Gasket - Regulator Housing 2 EA
15 M-5L1690 Gasket 1 EA
16 M-5L1691 Gasket 1 EA
17 M-7L3182 Gasket 1 EA
18 M-7M7273 Gasket - Turbocharger 1 EA
19 M-9H6067 Seal - O-ring 1 EA
20 M-1S4810 Gasket - Turbocharger Oil Supp 1 EA
21 M-6F1069 Seal - O-Ring 6 EA
22 M-2H3927 Seal - Hydraulic 2 EA
23 M-6L5362 Gasket - Air Comp 2 EA
24 M-6L5369 Gasket 2 EA
25 MCB6B6224 Ferrule and Seal Assy 24 EA
26 MCB7B2420 Ferrule and Seal Assy 16 EA
27 M-6L7816 Seal - O-ring 6 EA
28 M-7M875 Gasket 1 EA
29 M-7M878 Gasket 1 EA
30 M-7M879 Gasket 1 EA
31 M-1S6595 Gasket - Turbocharger Oil Supp 1 EA
32 M-7M7666 Gasket 6 EA
33 M-8N7892 Gasket - Alternator 2 EA
34 M-8M2970 Gasket - Cylinder Head 2 EA
35 M-8M5251 Seal - O-ring 12 EA
36 M-6N2235 Gasket 12 EA
37 M-2B5721 Gasket 2 EA
38 M-2M5173 Seal - Turbocharger Flange 1 EA
39 M-2M5177 Gasket 1 EA
40 M-2M5190 Gasket 2 EA
41 M-4F5607 Seal - O-Ring 6 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.

  • 1P3747

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