The Chelsea 680 Series Power Take-Off, part number 680XSAHX-A3XX or 680XSAHXA3XX, is a medium- to heavy-duty PTO built for manual transmissions with 8-bolt PTO apertures. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft for long service life under high-torque demand. It covers Eaton Fuller transmissions and includes a deep mount housing option for Mack applications. The series is engineered for higher-torque duties such as pneumatic blowers, aerial equipment, dump trucks, and refuse vehicles. An air shift cover keeps the profile compact for clearance under the truck. Call us to confirm proper fit and output configuration for your application.
Features
8-bolt mounting type for manual transmission applications
Cast iron housing with tapered cone bearings on the output shaft
Compatible with Eaton Fuller transmissions; deep mount housing option for Mack
Designed for high-torque applications including pneumatic blowers and aerial equipment
Space-saving air shift cover for maximum under-truck clearance
Series applications include dump trucks, refuse, fire and rescue, snow and ice removal, and service trucks
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Output Power: 56+ HP (42+ kW)
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Intermittent Torque: 301-400 lb-ft (501+ Nm); verify actual rating on application page
- Continuous Operation: Yes, with 30% de-rating
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit
- Housing: Cast iron
- Output Shaft Bearing: Tapered cone bearings
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
