Upgrade and restore your Cummins 4BT3.9 engine with this premium overhaul rebuild kit. Perfectly designed for CASE 8840 Windrower, this aftermarket kit ensures long-lasting performance and reliability.
Application
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Fits Cummins 4BT3.9 Engine
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Compatible with CASE 8840 Windrower
Kit Contents
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1 Set of Overhaul Gasket Kit
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4 Cylinder Liners (Semi-finished, require machining)
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4 Pistons STD
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4 Piston Pins
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8 Snap Rings
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4 Rod Bushings
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1 Set of Piston Rings
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1 Set of Main Bearings
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1 Set of Rod Bearings
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1 Set of Thrust Bearings
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4 Intake Valves
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4 Exhaust Valves
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8 Valve Guides
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4 Intake Valve Seats
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4 Exhaust Valve Seats
Key Features
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✅ Specifically engineered for Cummins 4BT3.9 engines
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✅ Fits CASE 8840 Windrower application
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✅ Complete set with pistons, gaskets, bearings & valves
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✅ Semi-finished liners for precision machining
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✅ Reliable aftermarket replacement for engine rebuilding
