Parts for 3406, 3408, and 3412 Caterpillar Engines

Caterpillar 3400 Series Engine Parts

Maximize the dependability of 3400 Series Caterpillar engines with parts from Diesel Parts Direct. Whether you need an overhaul kit to increase longevity in your Caterpillar 3408, or a water pump for an urgent repairs on your Cat 3406, we’ve got you covered. All of our Cat engine parts are engineered to endure extreme operating conditions, and best of all come with a 12-month warranty.

Cashflow in any business is important, which is why Diesel Parts Direct processes core and product returns fast. We understand that resources shouldn’t sitting around waiting to be processed, so we issue credit quickly on cores for everything from cylinder heads for a 3408 to a Cat 4312 turbo.

Depend on Diesel Parts Direct for delivery of 3400 Series Caterpillar engine parts.

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If you need help selecting the right part for your needs, please use our quote request form. Provide as much information as you can about the parts you require and our knowledgeable staff will promptly answer your request.

You may also call us at 888.687.0539 to inquire about current pricing and availability of our products.

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Caterpillar 3400 Series Engine Specifications

  • 3406: 6-cylinder inline
  • 3408: V8
  • 3412: V12
  • 3406: 14.6 l
  • 3408: 18.0 l
  • 3412: 27.0 l
Industrial, Marine (auxiliary, genset, propulsion), Gas and oil
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