5P3991 | Caterpillar 3304/3306 Overhaul Supplement Gasket Set, New

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5P3991 | Caterpillar 3304/3306 Overhaul Supplement 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-5P3991 — Gasket Set - Overhaul
Line No Kit Item No Item Name Qty UOM
1 M-1J9671 Seal - O-ring 1 EA
2 M-2M4108 Gasket - Oil Lines 1 EA
3 M-2P8746 Gasket - Oil Pump 1 EA
4 M-2S4750 Gasket - Acc Cover 1 EA
5 M-2S6151 Gasket 1 EA
6 M-3H442 Seal - O-ring 1 EA
7 M-3H4970 Seal - Accessory Drive 1 EA
8 M-3J1907 Seal - O-Ring Fuel Line 1 EA
9 M-4H7869 Gasket - Starter 1 EA
10 M-4J7533 Seal - O-ring 1 EA
11 M-4L8337 Seal - O-ring - Air Compressor 4 EA
12 M-1P436 Gasket - Fuel Pump 1 EA
13 M-4N49 Gasket - Cover - Idle Screw 1 EA
14 M-4N159 Gasket - Adapter 1 EA
15 M-4N260 Seal 2 EA
16 M-4N402 Gasket - Throttle Control 1 EA
17 M-4N403 Gasket 1 EA
18 M-4N508 Gasket - Cover - Torque Spring 1 EA
19 M-4N594 Gasket - Governor Hsg 1 EA
20 M-4N636 Seal - Lip Type 1 EA
21 M-4N1584 Seal - Lip Type 1 EA
22 M-2W4037 Seal 2 EA
23 M-1S4295 Gasket - Turbocharger 2 EA
24 M-4N3841 Gasket - Oil Cooler 1 EA
25 M-6V8977 Seal - Fuel Transfer Pump 1 EA
26 M-4N4431 Gasket 1 EA
27 M-4N9057 Gasket - Governor 1 EA
28 M-4N9337 Gasket - Elbow - Fuel Return 1 EA
29 M-4S7458 Diaphragm 1 EA
30 M-4S7756 Seal 2 EA
31 M-5F3106 1 EA
32 M-5H7704 Seal - O-ring 4 EA
33 M-5M4741 Gasket - Bonnet 2 EA
34 M-1S4810 Gasket - Turbocharger Oil Supp 1 EA
35 M-5M6509 Seal - O-ring 1 EA
36 M-5M9735 Seal - Arm Assy 1 EA
37 M-5P5757 Seal - O-ring 1 EA
38 M-9F4446 Seal - O-ring 1 EA
39 M-6L5766 Gasket 1 EA
40 M-7M9763 Lock - Nut 1 EA
41 M-1S6595 Gasket - Turbocharger Oil Supp 1 EA
42 M-8M5248 Seal - O-ring 1 EA
43 M-8M5253 Seal - O-ring 1 EA
44 M-9M673 Gasket 1 EA
45 M-9M4849 Seal - O-ring 1 EA
46 M-6N2843 Gasket - Filter Base 1 EA
47 M-7C4297 Seal - Crankshaft - Rear 1 EA
48 M-5S2106 Seal - Fan Drive 1 EA
49 M-5S4554 1 EA
50 M-5S6051 Gasket - Oil Filter 2 EA
51 M-3628853 Kit - Crankshaft Seal - Front 1 EA
53 M-9Y1979 Gasket - Exh Manifold 6 EA
54 M-9S1274 Gasket - Air Cleaner 1 EA
55 M-9S6762 Gasket 1 EA
56 M-9S7083 Gasket - Air Lines Group 1 EA
57 M-2D6392 Seal - O-ring 2 EA
58 M-2F6156 Lock - Nut 1 EA
59 M-2H3934 Seal - Transfer Pump 1 EA
60 M-1757904 Seal - O-ring 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.

  • 5P3991

We offer free shipping on orders $250 and above! For orders under $250, standard shipping rates apply. If you need expedited shipping such as Next Day Air or 2nd Day Air, just give us a call and one of our sales representatives will help you get the order placed within the timeline you need!

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