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Cummins 6B 5.9L Engine Inframe Overhaul Rebuild Kit, Piston 3906223

Our Price: $620.39
NOTE: Our website does not automatically run your VIN/Engine Serial Number. We run it after your purchase to ensure you are getting the correct parts for your engine.
IMPORTANT: We will build your kit according to your original serial number. If you feel that your engine has ever been modified or was not previously rebuilt to the factory specifications please contact us before ordering.

Price may change upon customizations.

Engine Kit Type:

* denotes required field

Main Bearing Size*
Rod Bearing Size*
Engine Serial Number*
Engine CPL Number
Brand: Maxiforce
Mfg Warranty:  Click for Info
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Product Details & Specifications
Cummins 5.9L Naturally Aspirated, Non Emission Engine Rebuild Kit

359 Cubic Inch
Bore: 4.02 in / 102 mm
Stroke: 4.72 in / 119 mm

Fits engines with Piston Marked: 6223

Please note: This engine kit is for use 5.9L engines with the following CPL Numbers only: 596, 691, 714, 791, 802, 845, 960, 999, 1320, 1403, 1433

If your CPL is not listed here and you are looking to order an engine kit, please perform a search on our website by typing "CPL" followed by your actual CPL number. The first result that should appear will be the exact engine kit you require. If you have any questions or need assistance, please let us know.

Case-IH: 5130 Tractor, 5230 Tractor
Case: 680K Backhoe, 680L Backhoe, 850D Crawler, 850E Crawler, 855D Crawler, 855E Crawler, W14B Wheel Loader, W14C Wheel Loader

Inframe Kit Includes
(6) Piston & Rings
(6) Rod Bearing Pairs (check if connecting rod is fracture split or machine split)
(1) Main Bearing Set
(1) Head Gasket Set
(1) Oil Pan Gasket

Overhaul Kit Includes
(6) Piston & Rings
(6) Rod Bearing Pairs (check if connecting rod is fracture split or machine split)
(1) Main Bearing Set
(1) Head Gasket Set
(1) Lower Gasket Set 
(1) Front Crankshaft Seal
(1) Rear Crankshaft Seal
(1) Camshaft Bushing
(6) Piston Pin Bushing

Rebuilder Specs
Bore: 4.0165"
Stroke: 4.724"
Rod Journal: 2.7160-2.7170"
Main Journal: 3.2672-3.2682"
Main Torque: 37, 45, 66 ft/lbs, +90 degrees
Rod Torque: 22, 44 ft/lbs, +60 degrees
Head Torque: First torque all bolts to 66 ft/lbs, then all bolts to 66 ft/lbs again. For the longest bolts only tighten in sequence 89 ft/lbs and then longest bolts only 89 ft/lbs again. Final stage is to then turn all bolts +90 degrees.
Intake Valve Lash: .010" cold (.254 mm)
Exhaust Valve Lash: .025" cold (.635 mm)