Cummins 4BT Cylinder Head Gasket kit 3.9L 3804896

This head gasket kit fits Cummins 4BT 3.9L diesel engines (4-cylinder) used in Case IH tractors, industrial equipment, and construction machinery. Part number 3804896. Call (818) 261-3896 for fitment confirmation.

Complete cylinder head gasket kit including head gasket, valve cover gasket, intake/exhaust manifold gaskets, and oil seals. Everything needed for head rebuild.

No. Head bolts are sold separately and should always be replaced during head gasket replacement. Never reuse torque-to-yield bolts.

Bobcat/Deutz recommend timing belt replacement every 2,000-3,000 engine hours or 3-5 years, whichever comes first. Always inspect the belt during routine maintenance for signs of wear, cracking, or contamination. If in doubt, replace it—timing belt failure can destroy the engine and cost thousands in repairs.

We offer free returns within 30 days if the part doesn't fit or you're not satisfied. Parts must be unused and in original packaging.

Orders ship same-day if placed before 3 PM EST. Standard delivery is 3-5 business days.