TNT Diesel Parts

TNT Diesel Parts Specializing in on road Caterpillar engines

500$ off Stage 2 3406e/C15 heads through February!
01/21/2026

500$ off Stage 2 3406e/C15 heads through February!

Liner cavitation is bad stuff. Use a quality antifreeze, change it at reasonable intervals, and maintain SCA levels when...
10/09/2025

Liner cavitation is bad stuff.

Use a quality antifreeze, change it at reasonable intervals, and maintain SCA levels when applicable. Make sure your cooling system is grounded while you're at it to prevent electrolysis.

Don't skimp on the machine work at rebuild time. If you're not having lower bore block erosion/concentricity checked and repaired, your liners may look like this sooner than later.

Make sure your radiator cap holds correct pressure. Low pressure creates a more inviting environment for cavitation.

This 3406B pump has de-rated a total of "0" times since 1988. 😎
08/20/2025

This 3406B pump has de-rated a total of "0" times since 1988. 😎

Inconvenient
08/05/2025

Inconvenient

This large car was bought with a fresh platinum kit installed in its C15 ACERT, but suffered a blown head gasket a short...
04/22/2025

This large car was bought with a fresh platinum kit installed in its C15 ACERT, but suffered a blown head gasket a short time later from low liners. Bummer.

Sometimes the Cat gods show mercy, and the measurements allow us to make a drastically cheaper, but effective, long term repair with a .335 spacer plate under the cylinder head. For that we thank them!

Proud to announce our partnership with Maxiforce Diesel Engine Parts! Specializing in quality aftermarket parts for smal...
04/11/2025

Proud to announce our partnership with Maxiforce Diesel Engine Parts! Specializing in quality aftermarket parts for small and medium duty diesel engines, Maxiforce will allow us to better serve those in the agricultural, equipment and medium duty truck markets.

If your truck is making the dreaded radiator milkshake, we've got the cure. Solder core oil coolers for 3406e/C15, in st...
03/23/2025

If your truck is making the dreaded radiator milkshake, we've got the cure. Solder core oil coolers for 3406e/C15, in stock!

We're suckers for clean engines, marble floors and chrome. 😎
03/13/2025

We're suckers for clean engines, marble floors and chrome. 😎

Kenworths need love too!
02/13/2025

Kenworths need love too!

Injectors with a little more attitude going into this 6NZ. With a Jake rebuild, bolt update, and overhead, she'll stop a...
12/11/2024

Injectors with a little more attitude going into this 6NZ. With a Jake rebuild, bolt update, and overhead, she'll stop and go quite a bit smoother and faster!

A routine oil sample caught this NXS C15 making oil. Looks like the upper injector o-ring was cut during previous insta...
10/01/2024

A routine oil sample caught this NXS C15 making oil. Looks like the upper injector o-ring was cut during previous install. Maybe we'll replace that spring while we're at it. 😎

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26676 State Highway 79
Trafford, AL
35172

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