Cummins 4B 3.9L, 4B 4.5L Inframe Engine Rebuild Kit, New (IF38062704B)

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.

• 4BTdiesel has you covered when it comes to great quality and long lasting consistency. Restore and extend the life of your engine with a brand new Inframe Rebuild Kit manufactured and assembled in an ISO 9001:2008 certified facility. 
• Add some more oomph to your pistons with piston pins that are hardened and tempered for improved strength and wear resistance and CNC turned pistons to precise tolerances.
• Why sacrifice quality if you don’t have to?  Computer controlled piston machining is included to help with maintaining proper clearances.
• Get long lasting strength to last you another million miles with connecting rod and main bearings built with tri-metal material for durability.
• Don’t worry any longer about an aftermarket part fitting and functioning. Your rebuild kit is built to OEM specifications so it fits perfectly within your engine and operates the way it’s supposed to.
• To upgrade your engine, your brand new Inframe Rebuild Kit consists of the correct materials to ensure gaskets have excellent performance in functionality and sealability. This includes OEM gasket materials for leak free durability.
• Who doesn’t like saving money? Get more bang for your buck with a lower price when comparing to the OE, while also gaining an equal or better quality rebuild kit.
• That’s not the only way 4BTdiesel helps save you money. All kits have brand new parts, so there will not be a core charge!
• Keep oil stay where it needs to, the oil control rings are designed with precise tangential tension to give your engine the proper oil control it requires.

Kit Contents:

• (1) Main Bearing Set
• (4) Main Bearings
• (4) Main Bearings
• (1) Thrust Bearing
• (4) Connecting Rod Bearings
• (4) Connecting Rod Bearings
• (1) Gasket
• (4) Piston Kits
• (4) Piston Pins
• (8) Piston Pin Retainers
• (4) Engine Pistons
• (4) Turbocharger Piston Ring Sets
• (4) Top Keystone Piston Rings
• (4) Oil Control Piston Rings
• (4) Intermediate Piston Rings
• (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