Case 850, 1150, 1450 Dozer Torque Parts

Torque converter parts for Case 850, 1150, and 1450 series crawler dozers, covering charge pumps, impellers, turbines, rotating group kits, gaskets, bearings, seals, and flex plates for both Case and Cummins engine configurations.

Fits Models At A Glance

• 850 Series: 850, 850B, 850C, 850D
• 1150 Series: 1150, 1150B, 1150C, 1150D, 1150E, 1150G, 1150H
• 1450 Series: 1450, 1450B, 1455B

Key Notes

• Application: Torque converter rebuild, charge pump replacement, and driveline service
• Rotating Group: Impellers, turbines, guide wheels, output shafts, and full rotating kits
• Seals & Gaskets: O-rings, sealing rings, cover and pump gaskets available individually
• Engine Fitment: Coverage for both Case and Cummins-powered dozers

Why Choose Broken Tractor

• ✅ Deep Case dozer driveline inventory ready to ship
• ✅ USA-made pumps and precision-fit components available
• ✅ Knowledgeable support to match correct part numbers

Frequently Asked Questions

Which charge pump fits a Case 850C dozer versus a 1150E?

The Transmission Charge Pump SKU R30678 fits the 850, 850B, 850C, 850D, and 1150, while SKU R25586 covers the 1150B, 1150C, 1150D, 1150E, 1150G, 1150H, and 1450. For the 1450B and 1455B, we carry the USA-made Hydraulic Charge Pump SKU R45996. Match the part number to your model and serial number, or confirm fitment with the parts team before ordering.

Do you sell a torque converter rotating group kit for Case 850 and 1150 dozers?

Yes, Broken Tractor offers a Torque Converter Rotating Group Kit (SKU 850/1150) that fits the 850, 850B, 850C, 850D, 1150, 1150B, 1150C, 1150D, 1150E, 1150G, 1150H, 1450, 1450B, and 1455B. We also carry the individual rotating components separately, including impellers, turbines, guide wheels, and output shafts, if you only need to replace one part.

How do I know if I need Case or Cummins torque converter parts for my dozer?

Fitment depends on which engine your dozer was built with. We carry Cummins-specific parts such as the Rotating Housing (SKU N9777) for 850D, 855D, 1150E, 1150G, 1150H, and 1155E, and the Flywheel Pilot SKU N9775 for Cummins-powered 850D through 1155E machines. The 6-Bolt Flywheel Pilot SKU D32015 covers Case-engine dozers, so confirm your engine configuration or match the part number before ordering.

Can I buy the torque converter gaskets and seals individually for a Case 1150?

Yes, we offer the sealing parts separately, including the Torque Cover Gasket (SKU D32005), Torque Relief Valve Gasket (SKU D32002), Pump Coupler Seal (SKU D51517), Charge Pump Gasket (SKU D32000), and the Torque Converter O-Ring (SKU 14464080). Most of these gaskets and seals fit the full 850 through 1455B range, so you can order only the pieces you need for your service.

Which flex plate parts fit a Case 850D with a Cummins engine?

The Torque Converter Flex Plate SKU N9774 fits the 850D, 1150E, 1150G, and 1150H. For earlier Case-engine machines, the Transmission Flex Plate Set 3-Pack (SKU D32017) covers the 850, 850B, 850C, 1150, 1150B, 1150C, 1150D, 1450, and 1450B, and the Flex Plate Shim SKU D32025 is available for setup. Confirm your engine type and part number to get the correct flex plate.