The Chelsea 680 Series Power Take-Off Assembly, part number 680GFAHX-V3XD or 680GFAHXV3XD, is built for medium- to heavy-duty manual transmission applications with an 8-bolt PTO aperture. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft, giving it an intermittent torque rating of up to 375 lb-ft (508 Nm) - verify your application on Chelsea's application pages for actual torque ratings. This unit shifts via wire/cable mechanical actuation and delivers output power exceeding 56 HP (51 kW), with shaft power rated at 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. The 1-1/4" round output shaft with key fits common hydraulic pump setups. A deep-mount housing option covers Mack transmission applications. Call us to confirm proper fit for your specific transmission.
The Chelsea 680 Series suits a wide range of vocational applications including aerial equipment, dump trucks, refuse trucks, snow and ice removal equipment, fire and rescue vehicles, and blower and product pump installations. The 680 Series PTO input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability. Parker Chelsea documents available for this series include the 680 Series Parts List (HY25-2660-M1_US), the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual, and the Chelsea Power Take-Off General Information Catalog.
Features
8-bolt mounting type for broad manual transmission coverage including Eaton/Fuller and Volvo/Mack
Wire/cable mechanical shift actuation
Intermittent torque rating: 375 lb-ft (508 Nm) - see application pages for verified rating
Output shaft: 1-1/4" round with key
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
- Intermittent Torque: 375 lb-ft / 508 Nm (Check Application Pages for Actual Torque Ratings)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP / 51+ kW
- Transmission Manufacturer Compatibility: Eaton/Fuller, Volvo/Mack, Other
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 8-Bolt
- 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)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 680 Series suits a wide range of vocational applications including aerial equipment, dump trucks, refuse trucks, snow and ice removal equipment, fire and rescue vehicles, and blower and product pump installations. The 680 Series PTO input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability. Parker Chelsea documents available for this series include the 680 Series Parts List (HY25-2660-M1_US), the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual, and the Chelsea Power Take-Off General Information Catalog.
