Search
Browse Categories

Click image to enlarge

Cummins 4B 3.9L Engine Inframe Overhaul Rebuild Kit, Piston 3906223, Absolute

Cummins 4B 3.9L Engine Inframe Overhaul Rebuild Kit, Piston 3906223, Absolute

Our Price: $468.82
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*
Bore Size*
Engine Serial Number*
Engine CPL Number
Brand: Absolute Parts
Mfg Warranty:  Click for Info
Heavy Duty Pros Quality Aftermarket Parts

Superior Quality Parts: Heavy Duty Pros parts meet and exceed the OEM quality specifications.

Heavy Duty Pros Fast Shipping Aftermarket Parts

Fast Shipping: We ship from warehouses across the US to ensure the quickest delivery.

Heavy Duty Pros Customer Service Aftermarket Parts

Expert Technical Advice: Industry repair technicians are standing by to provide expert advice for your repair.

Heavy Duty Pros Competitive Savings on Aftermarket Parts

Huge Savings: We offer competitive online pricing for significant savings.

Product Details & Specifications
Naturally Aspirated
Non-Emissions Engine
239 Cubic Inch
Bore: 4.02 in / 102 mm
Stroke: 4.72 in / 119 mm

Piston Marked: 6208, 6209, 6223

CPL Numbers: 591, 681, 721, 725, 791, 843, 895, 981, 1172, 1259, 1312, 1522, 1932

Case-IH: 6000 Windrower, 6500 Windrower, 8820, Windrower, 8830 Windrower
Case: 450C Crawler, 455C Crawler, 480E Backhoe, 480E LL Backhoe, 480F Backhoe, 480F LL Backhoe, 550 Crawler, 550E Crawler, 580K Backhoe, 580SE Backhoe, 580SK Backhoe, 584E Forklift, 585E Forklift, 586E Forklift, 660 Trencher, 760 Trencher, 1840 Skid Steer Loader, 1845C Early Skid Steer Loader

Inframe Kit Includes
(4) Piston & Rings
(4) Rod Bearing Pairs (for machine split connecting rods)
(1) Main Bearing Set
(1) Head Gasket Set
(1) Oil Pan Gasket

Overhaul Kit Includes
(4) Piston & Rings
(4) Rod Bearing Pairs (for machine split connecting rods)
(1) Main Bearing Set
(1) Head Gasket Set
(1) Lower Gasket Set 
(1) Front Crankshaft Seal
(1) Rear Crankshaft Seal
(4) 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: 44, 88, 129 ft/lbs
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)

Recommended Products

Cummins Exhaust Valve Kit, 3802356
Cummins Exhaust Valve Kit, 3802356
$8.18
Cummins Exhaust Valve Kit, 3802356
Includes 3901607 Valve, and 3900250 Keeper (x2)
Cummins Intake Valve Kit, 3802355
Cummins Intake Valve Kit, 3802355
$6.37
Cummins Intake Valve Kit, 3802355
Includes 3901117 Valve, and 3900250 Keeper (x2)
Cummins Oil Cooler, 3921557
Cummins Oil Cooler, 3921557
$81.62
Cummins Oil Cooler, 3921557
5 plate, replaces: 3904320, 3918292, 3921557, 3957543
Cummins Oil Pump, 3926202
Cummins Oil Pump, 3926202
$68.57
Cummins Oil Pump, 3926202
replaces: 3280510, 3901384, 3906413, 3914005, 3918211, 3924719, 3926202, 3930336, 3932449, 3937027, 3937028, 4939585...