3929039 Camshaft fits Cummins 4B 4BT 4BTA 3.9 3914638 3925582
3929039 Camshaft fits Cummins 4B 4BT 4BTA 3.9 3914638 3925582
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One New Aftermarket Replacement Camshaft for Cummins 4B / 4BT / 4BTA 3.9L Diesel Engines
This aftermarket replacement camshaft fits the Cummins B Series 3.9L four-cylinder diesel engine family, including the naturally aspirated 4B, turbocharged 4BT, and turbocharged/aftercooled 4BTA variants. The camshaft is a core valvetrain component that controls intake and exhaust valve timing throughout the engine's operating cycle. The Cummins 4BT 3.9L (CDC 4.390) is a 239 cubic inch, 4-cylinder engine with a 4.02 in / 102 mm bore and 4.72 in / 119 mm stroke, widely used in agricultural tractors, construction equipment, and industrial machinery.
Specifications
- Engine Family: Cummins B Series 3.9L (4B, 4BT, 4BTA) - 8-valve models
- Displacement: 239 cubic inches (3.9L)
- Bore: 4.02 in / 102 mm
- Stroke: 4.72 in / 119 mm
Compatible Models
Cummins Engines: 4B (Non-Turbo), 4BT (Turbo), 4BTA (Turbocharged Aftercooled) - 8-valve models
Fits Case IH (Fits International Harvester) Tractors: 5120 Maxxum, 5220 Maxxum
Fits Case IH Windrowers: 8840
Fits Case Construction Equipment: 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT (Skid Steers); 450C, 455C, 550, 550E, 550G, 570L, 570LXT, 580K, 580L, 580SE, 580SK, 580SL, 580M, 590, 590SL (Backhoes/Crawlers); 650, 650G, 688, 860 (Crawlers/Trenchers); 1840, 1845C, 9010, 9020 (Skid Steers)
Replaces Part Number(s):
3929039, 3914638, 3925582, J929039, J929039-A
New aftermarket replacement part - not remanufactured, not used.
