The Chelsea 680 Series Power Take-Off, part number 680XRAHX-V3XV or 680XRAHXV3XV, is a medium- to heavy-duty PTO built for 8-bolt transmission apertures. The 680 Series uses a cast iron housing with tapered cone bearings on the output shaft, a combination that supports higher-torque applications such as pneumatic blowers. Input shaft tapered bearings replace the needle-bearing design found in lighter units, improving load-bearing capacity. The series covers Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other manual transmissions, with a deep-mount housing option available for Mack applications. Output power reaches 56+ HP, with continuous operation supported at a 30% de-rating. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt mounting for Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other manual transmissions
Cast iron housing with tapered cone bearings on output shaft for increased torque capacity
Input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability
Deep-mount housing option available for Mack transmission applications
Designed for higher-torque applications including pneumatic blowers, dump trucks, refuse, and aerial equipment
Output power: 56+ HP / 51+ kW; intermittent torque range: 301-400 lb-ft
Tech Specs
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other manual transmissions with 8-bolt PTO aperture
- Output Power: 56+ HP (51+ kW)
- Intermittent Torque: 301-400 lb-ft (501+ Nm)
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable or Mechanical
- Lubricant System: No Pressure Lube (X designation)
- Output Options: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Housing: Cast Iron
- Bearing Type: Tapered Cone (output shaft); Tapered (input shaft)
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
