9S9457 | Caterpillar 6.25"/D353/D379/D398/D399 Overhaul Supplement Gasket Set, New

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9S9457 | Caterpillar 6.25"/D353/D379/D398/D399 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-9S9457 — Gasket Set - Overhaul
Line No Kit Item No Item Name Qty UOM
1 M-1A7427 Lock - Nut 3 EA
2 M-3H5939 Gasket - Expansion Tank 1 EA
3 M-4L7631 Gasket 1 EA
4 M-4L7934 Gasket 1 EA
5 M-4L7935 Gasket 1 EA
6 M-4L7937 Gasket 1 EA
7 M-4L8337 Seal - O-ring - Air Compressor 4 EA
8 M-5L1831 Gasket 1 EA
9 M-5L9809 1 EA
10 M-6L3398 Gasket 1 EA
11 M-2A2209 Lock - Accelerator 1 EA
12 M-6L3399 Gasket 2 EA
13 M-6L3400 Gasket 1 EA
14 M-2N5693 Gasket 2 EA
15 M-1S4295 Gasket - Turbocharger 2 EA
16 M-3S1427 Seal - O-ring 2 EA
17 M-3S4182 Seal 1 EA
18 M-4H1723 1 EA
19 M-5H1190 Seal 1 EA
20 M-5H6012 Seal - Lip Type 1 EA
21 M-5H7704 Seal - O-ring 6 EA
22 M-1F7178 Gasket 1 EA
23 M-7H9832 Lock - Nut 1 EA
24 M-2K8199 Seal - Hydraulic 1 EA
25 M-0L364 Lock 2 EA
26 M-4L3020 Gasket 8 EA
27 M-4L6145 Gasket 6 EA
28 M-6L5306 2 EA
29 M-6L6487 Gasket 4 EA
30 M-6L6489 Gasket 4 EA
31 M-4F7952 Seal - Hydraulic 1 EA
32 M-6L7816 Seal - O-ring 8 EA
33 M-6L7817 Seal - O-ring 8 EA
34 M-8L5457 Gasket 1 EA
35 MCB6B6224 Ferrule and Seal Assy 32 EA
36 MCB7B2420 Ferrule and Seal Assy 24 EA
37 M-5F9144 Seal - O-ring 1 EA
38 M-7F2836 Lock - Auxiliary Pump 1 EA
39 M-2H2665 Seal - Elbow 8 EA
40 M-2H4546 Gasket 2 EA
41 M-2H5001 Ring - Seal 1 EA
42 M-4H1723 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.

  • 9S9457

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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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