8C5371 | Caterpillar D343/D346/D348/D349 Cylinder Head Gasket Set, New

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8C5371 | Caterpillar D343/D346/D348/D349 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-8C5371 — Gasket Kit - Cylinder Head
Line No Kit Item No Item Name Qty UOM
1 M-7E8028 Gasket - Cylinder Head 2 EA
2 M-9H6067 Seal - O-ring 2 EA
3 M-4L8337 Seal - O-ring - Air Compressor 4 EA
4 M-4L9564 Seal - Breather Group 1 EA
5 M-2453512 Gasket - Exh Manifold 1 EA
6 M-6L1648 Seal - O-ring 2 EA
7 M-2M5173 Seal - Turbocharger Flange 4 EA
8 M-4M5397 4 EA
9 M-5M1868 Seal - O-ring 12 EA
10 M-7M4843 Lock - Bolt 2 EA
11 M-7M7273 Gasket - Turbocharger 2 EA
12 M-6F8146 Seal - O-ring 8 EA
13 M-8M2888 Gasket 4 EA
14 M-8M4991 Seal - O-ring 2 EA
15 M-8M7587 Lock - Nut 4 EA
16 M-8M8157 Seal - O-ring 4 EA
17 M-9M5252 Gasket 2 EA
18 M-2N5749 Seal - Auxilary Pump 12 EA
19 M-2N7464 Gasket 3 EA
20 M-2N7732 Lock 24 EA
21 M-2N9514 Gasket - Aftercooler 4 EA
22 M-4N5385 Gasket - Cover - Fan 1 EA
23 M-1H1023 Seal - O-ring 24 EA
24 M-6N6854 Gasket 2 EA
25 M-8N8110 Gasket 2 EA
26 M-1P3171 3 EA
27 M-1S4810 Gasket - Turbocharger Oil Supp 2 EA
28 M-1S6595 Gasket - Turbocharger Oil Supp 2 EA
29 M-1S7104 Seal - O-ring - Injection Hsg 2 EA
30 M-2S2964 Gasket 12 EA
31 M-2S2984 2 EA
32 M-2S3721 Gasket 6 EA
33 M-1H8171 Seal - Hydraulic 12 EA
34 M-3S2891 2 EA
35 M-3S2892 4 EA
36 M-3S4534 Gasket 6 EA
37 M-3S5496 Seal - O-ring 18 EA
38 M-3S7781 Gasket - Transfer Case 1 EA
39 M-4S5480 2 EA
40 M-8S4275 Seal 48 EA
41 M-2W863 Gasket 12 EA
42 M-4W7435 Gasket - Spacer Plate 2 EA
43 M-2H5001 Ring - Seal 2 EA
44 M-5P5678 Seal - Stock 7 EA
45 M-3H3451 Nut - Lock 2 EA
46 M-5H2831 Gasket 2 EA
47 M-8H1607 Seal - O-ring 2 EA
48 M-9H5829 Gasket 8 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.

  • 8C5371

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