3478688 | Caterpillar 3406E/C15/C16 Cylinder Head Gasket Set, New

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3478688 | Caterpillar 3406E/C15/C16 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-3478688 — Gasket Set - Cylinder Head
Line No Kit Item No Item Name Qty UOM
1 M-1262704 Seal - Integral 1 EA
2 M-2N2765 Bolt - Turbocharger 4 EA
3 M-5P840 Seal - O-ring 2 EA
4 M-0618639 Seal - O-ring 6 EA
5 M-9X7430 Seal - O-ring - injector Tube 6 EA
6 M-9Y2588 Gasket - Regulator Housing 1 EA
7 M-8L2786 Seal - O-ring 1 EA
8 M-1090093 Seal - Water Lines Group 1 EA
9 M-1036045 Seal 1 EA
10 M-2147568 Seal - O-ring 10 EA
11 M-2M9780 Seal - O-ring 1 EA
12 M-1632478 Seal - Valve Stem 24 EA
13 M-336042 SS: M-2147568 2 EA
14 M-6V5048 Seal - O-ring 1 EA
15 M-6V5050 Seal - O-ring 1 EA
16 M-2722583 Seal - Adapter 2 EA
17 M-6V128 Seal - Connector 1 EA
18 M-3E6772 Grommet - Water 24 EA
19 M-1662904 Seal - O-ring 18 EA
20 M-4F7390 Seal - O-ring 1 EA
21 M-2N2766 Lock - Nut 4 EA
22 M-2271204 Shim - Cylinder Head 1 EA
23 M-5H7704 Seal - O-ring 2 EA
24 M-8L2777 Seal - O-ring 12 EA
25 M-6V1197 Seal - O-ring 1 EA
26 M-6V5100 Seal - O-ring 1 EA
27 M-1262702 Seal - Integral 1 EA
28 M-3D2824 Seal - O-ring 1 EA
29 M-3590908 Gasket - Cylinder Head 1 EA
30 M-3S9643 Seal - Thermostat 1 EA
31 M-1125282 Seal - Water Lines Group 1 EA
32 M-4N1156 Gasket - Regulator Housing 1 EA
33 M-1384611 Gasket - Exh Manifold 6 EA
34 M-1178801 Seal - O-ring 1 EA
35 M-5E8771 Seal - O-ring 1 EA
36 M-1S4295 Gasket - Turbocharger 1 EA
37 M-6V3251 Seal - O-ring 1 EA
38 M-1142687 Seal - Oil Lines Group 1 EA
39 M-1048585 Gasket - Regulator 1 EA
40 CG71PAD 1 EA
41 CG71 PR 1 EA
42 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.

  • 3478688

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