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The Chelsea 680 Series Power Take-Off Assembly, part number 680XQAHX-A3XD or 680XQAHXA3XD, is a medium- to heavy-duty PTO built for demanding vocational applications including pneumatic blowers, dump trucks, and aerial equipment. It mounts to transmissions with an 8-bolt PTO aperture and covers Eaton/Fuller and Volvo/Mack applications, with a deep-mount housing option available for Mack transmissions. Shift is wire/cable mechanical. The 1-1/4" round output shaft with key delivers over 56 HP output, with shaft power rated at 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. Intermittent torque is rated in the 301-400 lb-ft range, with application-specific ratings up to 375 lb-ft (508 Nm) - confirm actual torque ratings against your application. A genuine Chelsea part available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
- Intermittent Torque: 301-400 lb-ft (501+ Nm); up to 375 lb-ft / 508 Nm - check application pages for actual torque ratings
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP (51+ kW)
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 8-Bolt
- Compatible Transmissions: Eaton/Fuller, Volvo/Mack, Other
- Shaft Power: 36 HP / 27 kW at 500 RPM; 71 HP / 53 kW at 1,000 RPM; 107 HP / 80 kW at 1,500 RPM
- Dimensions (H x W x L): 8.38" x 10.38" x 10.75"
- Gear Count: 2-gear assembly
- Cross References: 1450-680XQAHXA3XD, 4100XCA011SE, CHE-680XQAHX-A3XD, CHL 680XQAHX A3XD
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Features
- 8-bolt mounting for broad coverage of manual transmission applications
- Wire/cable mechanical shift type
- 1-1/4" round output shaft with key
- Intermittent torque up to 375 lb-ft (508 Nm) - check application pages for actual ratings
- Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
- Deep-mount housing option suits Mack transmission applications
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