The Chelsea 645XARX-4XX or 645XARX4XX is a geared adapter PTO assembly designed for 6-bolt PTO openings on 6-bolt transmissions. Its defining feature is a 45-degree downward offset that repositions the PTO unit to clear chassis or driveline interference, a practical solution where a direct-mount PTO will not fit. The adapter shares the same input gear design as the Chelsea 442 Series, which means 442 Series input gears are interchangeable in this application. Dimensions are 7.75 in. H x 10.75 in. W x 10.75 in. L. Call us to confirm proper fit for your specific transmission and chassis configuration.
Features
6-bolt PTO to 6-bolt transmission mounting interface
45-degree downward offset repositions the PTO to eliminate chassis or driveline interference
Shares input gear design with the Chelsea 442 Series for compatibility
Dimensions: 7.75 in. H x 10.75 in. W x 10.75 in. L
Genuine Chelsea part, sold by Pro Gear and Transmission
Tech Specs
- Mount: 6-bolt PTO to 6-bolt transmission opening
- Offset: 45 degrees downward (reduces interference with chassis or driveline components)
- Input Gear Compatibility: same input gears as Chelsea 442 Series
- Dimensions: 7.75 in. H x 10.75 in. W x 10.75 in. L
