Cummins 4B Inframe Engine Rebuild Kit, New (IF39578014B)

Think you know the truth about Aftermarket Rebuild Kits? We’d bet you’d be surprised.
It’s no secret, rebuilding your rig is one of the most labor (and wallet) intensive repairs out there. Sure, you want your engine to last another million miles but you also want the best price; so what should you choose- OEM or Aftermarket?

When it comes to engine parts, the aftermarket often gets a bad rep. The idea that aftermarket retailers sell cheap parts with zero warranty, delivered in a beat-up box written in another language couldn’t be further from the truth. 4BTdiesel is here to set the record straight; we only sell Rebuild Kits with new parts, zero core charges, and a 6-month warranty. On top of only offering premium quality parts, we also make sure you save up to 50% off OEM prices. So, when it comes to your rebuild, what’s left to want?

Need a little extra proof? Let’s talk Rebuild Kits.

• Go the extra mile, or a million extra miles with an all new Inframe Rebuild Kit, which will restore and extend the life of your engine.
• Fortify your engine with the correct gasket materials used throughout your rebuild kit for excellent performance in leak free durability. 
• You get it all with CNC turned pistons withpiston pins that are hardened and tempered for improved strength and wear resistance. 
• Maintain proper clearances and maximize your cylinder power with computer controlled piston machining! They’ll keep you running till the cows come home. 
• Keep oil where it needs to be with oil control rings designed with precise tangential tension for maximum oil control.
• Want durability? You got it! Rod and main bearings are constructed with a tri-metal material for longevity.
• Make your diesel great again with sealing products crafted with 100% asbestos-free materials and proudly made in the USA!
• Quit paying ridiculous OE prices! Receive equal or better quality compared to the OE. The kicker? It’s all for a much lower price.
• But that’s not all! All components of your rebuild kit are brand new, so there’s no core charge!
• We know quality is a top priority. To ensure all rebuild kits have the quality and consistency you count on, 4BTdiesel makes certain your kit is manufactured and assembled in an ISO 9001:2008 certified facility.

Kit Contents:

• (4) 1.0mm Piston Kits
• (8) Piston Pin Retainers
• (4) Piston Pins
• (4) 1.0mm Engine Pistons
• (4) 1.0mm Piston Ring Sets
• (4) Oil Piston Ring
• (4) Compression Piston Ring
• (4) Compression Piston Ring
• (1) Main Bearing Set
• (4) Main Bearings
• (4) Main Bearings
• (1) Thrust Bearing
• (4) Connecting Rod Bearings
• (4) Connecting Rod Bearings
• (1) Gasket
• (1) Oil Pan Gasket
• (1) Upper Engine Gasket Set
• (1) Cylinder Head Gasket
• (2) Washers
• (4) Injector Sleeves
• (4) Injector Seals
• (1) Thermostat Seal
• (4) Exhaust Manifold Gaskets
• (4) Valve Cover Gaskets
• (4) Noise Isolators
• (1) Rectangular Ring Seal
• (4) Mid Range XPI Injector Seals
• (4) Washers
• (1) Turbo Oil Drain Gasket
• (1) Intake Manifold Gasket
• (8) Valve Stem Seals
• (1) Gasket
• (1) Sealing Washer
• (4) Banjo Seals
• (1) Rectangular Ring Seal
• (1) Washer
• (4) Rocker Cover Bolt Seals
• (1) Metal Gasket

Warranty

6-month warranty.

What Rebuild Kit and Gasket Set Includes