Mahle 4BT Cummins/3.9 Engine Overhaul

Mahle has done all the work for you, rather than trying to source all of the necessary parts for an engine rebuild, this comprehensive Heavy Duty Overhaul kit for your 3.9L Cummins includes everything you need to rebuild or upgrade your engine. Mahle has already done all of the necessary research and development to bring you the best parts for your application. Every part in this kit has been been specifically chosen to help your motor last longer, run better, and give you peace of mind that nothing but the best quality parts are in your truck.

Includes:

• Pistons (4)
  – Please specify desired bore size 
• Ring Set (4)
  – Ceramic chrome top ring
• Connecting Rod Bearings
  – Over/Undersize bearings available upon request
• Main Bearing Set
  – Over/Undersize bearings available upon request
• Camshaft Bearing
• Top End Gasket Set
  – .010″ & .020″ thickness head gasket available upon request
• Bottom End Gaskets & Seals
  – Includes water pump gasket, oil pan gasket, timing cover gaskets/seals, rear main seal, etc.

We must know the serial number or CTL tag of the engine you wish to purchase this kit for!

There were many different piston part numbers in the Cummins engines and we need to know exactly which pistons you need in order to get the right kit from Mahle

Engine serial number is 8 digits and can be found on the timing cover

If you DO NOT provide us with the engine serial number, CTL tag, or # on the top of the piston(s), we will order a generic kit for your engine and there will be no guarantee of fitment