The Chelsea 680 Series Power Take-Off, part number 680XQAHX-A5RK or 680XQAHXA5RK, is a medium- to heavy-duty PTO built for 8-bolt transmission openings on Eaton/Fuller, Volvo/Mack, and other manual transmission applications. It features a cast iron housing with tapered cone bearings on the output shaft for load-bearing strength. Shift is wire/cable mechanical. The output shaft is a 1-1/4" round with keyway. Intermittent torque rating for this series runs up to 375 lb-ft (508 Nm); check application pages for your specific torque rating. Shaft power at 1,000 RPM is 71 HP (53 kW). The deep-mount housing option suits Mack transmission applications. Built for pneumatic blower and other higher-torque vocational uses, this 680 Series unit is a genuine Chelsea part available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
8-bolt mounting fits most manual transmission applications with 8-bolt PTO apertures
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque up to 375 lb-ft (508 Nm) - check application pages for your specific rating
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
Deep-mount housing option available for Mack transmission applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Shaft Type: 1-1/4" Round, 1-1/4" Round with Key
- Intermittent Torque: 375 lb-ft / 508 Nm (Check Application Pages for Actual Torque Ratings)
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 36 HP (500 RPM), 71 HP (1,000 RPM), 107 HP (1,500 RPM) / 27 kW (500 RPM), 53 kW (1,000 RPM), 80 kW (1,500 RPM)
- Transmission Manufacturer Compatibility: Eaton/Fuller, Volvo/Mack, Other
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
