5P6321 | Caterpillar 3406 Overhaul Gasket Set, New

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5P6321 | Caterpillar 3406 Overhaul 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-5P6321 — Gasket Kit - Overhaul
Line No Kit Item No Item Name Qty UOM
1 M-2A1162 Gasket - Fuel Filter 2 EA
2 M-5F149 Seal - O-ring 1 EA
3 M-1H1023 Seal - O-ring 12 EA
4 M-2H3927 Seal - Hydraulic 2 EA
5 M-5H5672 Seal - O-ring 1 EA
6 M-9H6067 Seal - O-ring 2 EA
7 M-3J1907 Seal - O-Ring Fuel Line 11 EA
8 M-3J7354 Seal - O-ring 1 EA
9 M-6J2419 Seal - O-ring 1 EA
10 M-7J204 Seal - O-ring 1 EA
11 M-8J1688 Seal - O-ring 1 EA
12 M-3D2824 Seal - O-ring 3 EA
13 M-5K5959 Seal - O-ring 1 EA
14 M-2A3398 Gasket 1 EA
15 M-5L2727 Seal - O-ring 3 EA
16 M-5L5032 Seal - O-ring 1 EA
17 M-6L1651 Seal - O-ring 3 EA
18 M-6L3528 Gasket - Governor 1 EA
19 M-9L5854 Band - Liner 12 EA
20 M-9L6924 Gasket - Turbocharger Oil 1 EA
21 M-2M2489 Oil Seal 2 EA
22 M-2M5446 Gasket - Compressor 1 EA
23 M-3D2992 Seal - O-ring 12 EA
24 M-2M9780 Seal - O-ring 10 EA
25 M-4N1059 Gasket - Starter 1 EA
26 M-4M8303 Seal - O-ring 1 EA
27 M-7M7273 Gasket - Turbocharger 2 EA
28 M-8M4437 Seal - O-ring 12 EA
29 M-8M4443 Seal - O-ring 1 EA
30 M-8M8283 Seal - O-ring - Oil Cooler 4 EA
31 M-9M7002 Seal - O-ring 1 EA
32 M-9M9647 Seal - O-ring 2 EA
33 M-1102220 Seal - O-ring - Cylinder Liner 36 EA
34 M-5D6539 Seal - O-ring 2 EA
35 M-2N8630 Gasket 1 EA
36 M-1299452 Gasket - Exh Manifold 12 EA
37 M-7C307 Gasket 7 EA
38 M-4N864 Gasket - Bonnet 3 EA
39 M-4N865 Gasket - Oil Filter 1 EA
40 M-4N933 Gasket 4 EA
41 M-4N1104 Gasket - Fuel Pump 1 EA
42 M-4N1105 Gasket - Fuel Transfer Pump 1 EA
43 M-4N1151 Gasket - Oil Pan - Puzzle 1 EA
44 M-4N1156 Gasket - Regulator Housing 2 EA
45 M-2F2293 Gasket 1 EA
46 M-4N1320 Gasket - Adapter 2 EA
47 M-1669145 Gasket - Cylinder Block 1 EA
48 M-4N1636 Gasket - Governor 1 EA
49 M-4N1684 Gasket - Cylinder Block Cover 1 EA
50 M-4N1722 Gasket 3 EA
51 M-4N1848 Gasket - Aftercooler 1 EA
52 M-4N1868 Gasket - Governor 1 EA
53 M-4N1946 Gasket - Water Lines Group 1 EA
54 M-3E6772 Grommet - Water 48 EA
55 M-4N2564 Gasket 1 EA
56 M-4F7387 Seal - O-ring - Oil Cooler 2 EA
57 M-5P9294 Seal - Lip Type 1 EA
58 M-6V8977 Seal - Fuel Transfer Pump 2 EA
59 M-4N4307 Gasket - Water Lines Group 1 EA
60 M-4N7465 Gasket 1 EA
61 M-6N2508 Gasket - Front Housing 1 EA
62 M-6N9135 Gasket - Plate 2 EA
63 M-1313815 Seal Assy - Water Pump 1 EA
64 M-1131474 Gasket - Flywheel Housing 1 EA
65 M-8N2431 Gasket 2 EA
66 M-4F7390 Seal - O-ring 1 EA
67 M-1P436 Gasket - Fuel Pump 1 EA
68 M-2P8643 Gasket 1 EA
69 M-5P796 Seal - Lip Type 1 EA
70 M-5P1713 1 EA
71 M-5P2060 Seal - Nozzle 12 EA
72 M-5P5700 Seal - O-ring 8 EA
73 M-5P5757 Seal - O-ring 1 EA
74 M-1609874 Gasket Set - Cylinder Liner 12 EA
75 M-1S4 Seal - O-ring 2 EA
76 M-4F8824 Seal - Hydraulic 1 EA
77 M-1S4810 Gasket - Turbocharger Oil Supp 2 EA
78 M-1S6595 Gasket - Turbocharger Oil Supp 2 EA
79 M-2S2251 Seal - O-ring 12 EA
80 M-3S9643 Seal - Thermostat 2 EA
81 M-4S5898 Seal - O-ring 1 EA
82 M-5S4554 1 EA
83 M-5S9022 Seal - Crankshaft - Rear 2 EA
84 M-8S5388 Gasket - Governor Group 1 EA
85 M-4F9653 Seal - Cover Group 1 EA
86 M-5P5678 Seal - Stock 13 EA
87 M-2253099 Gasket - Cylinder Head 2 EA
88 CG73PR 1 EA
89 CG72PAD 2 EA
90 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.

  • 5P6321

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!

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