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Caterpillar 3406, 3406B, 3406C Inframe-Overhaul Engine Rebuild Kit (FP Diesel)

  • OEM Number: CAT3406FP
  • Brand: FP Diesel
    Brand Info x Close FP Diesel

    With FP Diesel® you get a complete offering of premium, leading-edge technologies engineered in each replacement engine and sealing component and designed to thrive in demanding work environments. From cutting edge metallurgy on the inside to specialized coatings on the outside, FP Diesel components are infused with advanced technologies. The award-winning engineering concepts behind these parts deliver problem-solving benefits you can trust.

    Their latest innovations address service issues in new and old engine platforms. It’s further proof that when you choose FP Diesel you get premium-quality parts along with the technology engines need for like-new performance and extended durability.

    FP Diesel develops and tests each new engine repair solution through the Federal-Mogul network of research facilities, addressing the replacement challenges encountered in rebuilding engines and, in many cases, improving on original materials and designs. With FP Diesel, you are get a repair solution in the form of trusted technologies engineered to address the unique demands and operating environments of each engine after thousands of hours of operation.
This item ships for free (US only, excluding AK & HI)

Please choose your customizations:

Kit Type:

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Rod Bearing Sizes*
Main Bearing Sizes*
Engine Serial*
Arrangement Number*
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This product qualifies for free ground shipping.

Free Shipping is only available in the United States (48 States).

Other shipping methods available at additional costs.

Additional fees apply to AK, HI and Canada.

Price may change upon customization above.

Fast Shipping
With warehouses across the US, we ship quickly and efficiently.

Expert Advice
Expert tech advice before and after your purchase.

High Quality Parts
Our parts meet and exceed the OEM specifications.


Available piston choices
7E0292 (15.6:1 CR 1992 Engines 310-425 HP)
7E0539 (15.2:1 CR 1990 350-425 HP)
1010016 (16.4:1 CR 310-425 HP)
7E8656 (15.6:1 1991-92)
7E8700 (15.2:1 1991-92 350-425 HP)
6N4126 (460 HP Underground Mine Usage)
7N3509 (15.2:1 CR Under 350 HP)
7N3633 (14.5:1 CR 400 HP)
9Y3116 (Up to 310 HP)
9Y4004 (14.5:1 CR)
9Y7212 (7N3511 15.6:1 CR 310 HP)
9Y9889 (7C3406 15.2:1 CR 350-425 HP)

Parts Included In Engine Overhaul Kit:
(6) Liner Kits (Sleeve/Liner, Piston, Rings, Wrist Pin, Liner Seals)
(1) Full Gasket Set
(6) Rod Bearings
(1) Main Bearing Set

Inframe Engine Kit Breakdown
(6) Liner Kits (Sleeve/Liner, Piston, Rings, Wrist Pin, Liner Seals)
(1) Upper Gasket Set
(1) Oil Pan Gasket
(6) Rod Bearings
(1) Main Bearing Set

Liner orings included in this engine kit are color coded. There will be 3 O-Rings and a Filler Band. This is the order from top to bottom: Black (Filler Band), Green, Orange, Blue/Purple.

This Caterpillar Engine Kit is FP Diesel Brand. FP Diesel, part of the Federal-Mogul engine systems group, is the leading brand of premium heavy duty engine parts and gaskets. Today's heavy duty market demands performance. At FP Diesel, performance means more than just providing quality parts at competitive prices. Performance means precision engineered parts that meet your demanding specifications. FP Diesel brand parts carry a unprecedented 2 year warranty.

All cylinder blocks must be precisely checked for concentricity and deck surface condition prior to liner installation. Anything less than perfect condition at these points can lead to cracked flanges on the cylinder liner. Failure to thoroughly inspect these two areas is the leading cause of liner flange cracking and should be the foremost consideration if liner flange failure occurs. FP Diesel warranty claims will not be considered without sufficent evidence on the cylinder blocks condition.

Please refer to Caterpillar repair procedure (SEHS9564-1) for inspecting your liner protrusion and cylinder block deck.

Caterpillar 3406A Specs Caterpillar 3406B Specs Caterpillar 3406C Specs

Caterpillar 3406 Head Torque Sequence