Cummins 4B Inframe Engine Rebuild Kit, New (IF3802757-4B)

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.

• Want to extend the life of your engine while restoring it to optimal working condition? Not only will it help your engine run another million miles but it will increase its power and efficiency. 
• You’ll receive a brand new inframe rebuild kit that is manufactured and assembled in an ISO 9001: 2008 certified facility. This ensures exceptionalquality and consistency.
• Speaking of quality, it will be equal or better compared to the OE at a much lower price. That’s more bang for your buck! To top it off, all new parts are included and there is no core charge.
• Worried about proper fitment and functionality? We’ve got you covered.OE specifications are met to give you the best of both. There’s no doubt our parts will knock your socks off. 
• The sealing products included are USA made and use 100% asbestos-free material. Not only are they durable, but they will ensure zero leakage!
• Oil leaks? Never heard of it. The oil control rings are designed with precise tangential tension for proper oil control. It is vital to keep your oil where it needs to be and these will do their job.
• Always on the road? Don’t worry, the tri-metal connecting rods and main bearings will fortify your engine with long lasting strength and durability. These bad boys will keep you on the road and not on the side of it.
• You can count on these piston pins, they are hardened and tempered for improved strength and wear resistance to make your engine great again.
• We know how important it is to have precise tolerances, that is why the pistons included are CNC turned to make sure your piston is not out of place. Additionally, the pistons are computer control machined to maintain proper clearances.
• Let’s seal the deal. Correct materials are used in the crafting of the gaskets giving you maximum sealing performance. You can’t beat that!

Kit Contents

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

Warranty

6-month warranty.

What Rebuild Kit and Gasket Set Includes