343063 | Caterpillar D343/D346/D348/D349 Cylinder Head Gasket Set, New

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343063 | 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: MCB343063 — Gasket Kit - Cylinder Head
Line No Kit Item No Item Name Qty UOM
1 M-2H3927 Seal - Hydraulic 3 EA
2 M-2H3088 Seal - O-ring 2 EA
3 M-2H3933 Seal - Hydraulic 1 EA
4 M-2M5173 Seal - Turbocharger Flange 1 EA
5 M-2M6203 Gasket 6 EA
6 M-2M8089 Gasket 1 EA
7 M-3S5496 Seal - O-ring 2 EA
8 M-3S9686 Gasket - Cylinder Head 1 EA
9 M-4F5639 Gasket 1 EA
10 M-4F9653 Seal - Cover Group 6 EA
11 M-4H2494 Sleeve 2 EA
12 M-4F7390 Seal - O-ring 1 EA
13 M-4H2496 Sleeve 1 EA
14 M-4L4412 Gasket 1 EA
15 M-4L8337 Seal - O-ring - Air Compressor 2 EA
16 M-4M8210 Lock 1 EA
17 M-5H1039 Seal - O-ring 8 EA
18 M-2A5328 Lock 2 EA
19 M-5L5032 Seal - O-ring 1 EA
20 M-5M1868 Seal - O-ring 6 EA
21 M-5M1902 Gasket 1 EA
22 M-5M9419 Gasket 1 EA
23 M-5L1150 Gasket 1 EA
24 M-5M9421 Gasket 1 EA
25 M-6B9186 Gasket - Weight Group 1 EA
26 M-6L2723 Gasket 1 EA
27 M-6L2732 Gasket 2 EA
28 M-6L2780 Gasket 1 EA
29 M-6L3184 Gasket 1 EA
30 M-6L4907 Gasket 2 EA
31 M-6L4911 Gasket 1 EA
32 M-6L4915 Gasket 1 EA
33 M-6L3046 Gasket 1 EA
34 M-6L6580 Gasket 2 EA
35 M-7M7224 Gasket 1 EA
36 M-7M7226 Gasket 1 EA
37 M-7M7273 Gasket - Turbocharger 1 EA
38 M-8M904 Gasket - Oil Lines Group 1 EA
39 M-8S9988 Shim - Head Gasket 1 EA
40 M-9F5940 Gasket 1 EA
41 M-9M2678 Gasket 1 EA
42 M-9S5747 Seal 24 EA
43 M-4H5952 Gasket 1 EA
44 M-0L364 Lock 17 EA
45 M-7H2444 Seal - O-ring 2 EA
46 M-4L5829 Gasket 1 EA
47 M-6L3057 Gasket 1 EA
48 M-8N2746 Gasket 1 EA
49 M-9S5746 Ferrule - Water Director Seal 24 EA
50 M-5L5840 Washer 23 EA
51 M-1P6857 Gasket 1 EA
52 M-1S4810 Gasket - Turbocharger Oil Supp 2 EA
53 M-1S6595 Gasket - Turbocharger Oil Supp 1 EA
54 M-2B1738 Lock - Screw 1 EA
55 CG71PAD 1 EA
56 CG71 PR 1 EA
57 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.

    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