The Chelsea 680 Series Power Take-Off, part number 680GHAHX-A3RK or 680GHAHXA3RK, is a medium- to heavy-duty PTO built for 8-bolt transmission apertures. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft, giving it strong load capacity for higher-torque applications such as pneumatic blowers. It covers a wide range of Eaton/Fuller and Mack transmission applications, with a deep-mount housing option available for Mack. The series supports up to 375 lb-ft intermittent torque (check application pages for your specific rating) and continuous operation with a 30% de-rating. Shift options include wire/cable and mechanical. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt mounting for broad manual transmission coverage including Eaton/Fuller and Mack
Cast iron housing with tapered cone bearings on the output shaft for high load capacity
Intermittent torque rating up to 375 lb-ft (508 Nm) - verify actual rating for your application
Designed for high-torque applications such as pneumatic blowers
Deep-mount housing option available for Mack transmission applications
Continuous operation capable with 30% de-rating
Tech Specs
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque: Up to 375 lb-ft (508 Nm) - check application pages for actual rating
- Continuous Operation: Yes, with 30% de-rating
- Output Options: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Housing Material: Cast Iron
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 680 Series is suited for a range of vocational applications including aerial, snow and ice removal, fire and rescue, dump truck, service trucks, refuse, and blower/product pump use. The space-saving air shift cover is designed to maximize clearance under the truck. The 680 Series offers 32 output options, including Chelsea's 360-degree rotatable flange, and four internal speed ratios. Shaft power ratings for the series: 36 HP (500 RPM), 71 HP (1000 RPM), 107 HP (1500 RPM). Related Parker Chelsea documents include the 680 Series Parts List (HY25-2660-M1_US) and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
