The Chelsea 680GHAHX-A3XY is an 8-bolt power take-off from the Chelsea 680 Series, designed for medium to heavy-duty manual transmission applications including Eaton Fuller and Mack. The 680 Series features a cast iron housing with tapered cone bearings on both the output shaft and input shaft, suited for higher-torque demands such as pneumatic blowers. The series carries an intermittent torque rating of up to 375 lb-ft (508 Nm), with continuous operation supported at a 30% de-rating. Shaft power output reaches 71 HP at 1,000 RPM and 107 HP at 1,500 RPM. The space-saving air shift cover maximizes clearance under the vehicle. Call us to confirm proper fit for your transmission and application.
Features
8-bolt mounting for most manual transmission applications with 8-bolt PTO apertures
Cast iron housing with tapered cone bearings on output and input shafts
Intermittent torque rating up to 375 lb-ft (508 Nm); continuous operation with 30% de-rating
Shaft power output: 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
Deep mount housing option available for Mack transmission applications
Compatible with Eaton Fuller, Volvo/Mack, Daimler/Detroit, and other manual transmissions
Tech Specs
- Mounting Type: 8-Bolt
- 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 Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, or Driveline
- Shaft Power: 36 HP (500 RPM), 71 HP (1,000 RPM), 107 HP (1,500 RPM)
- Lubricant: No Pressure Lube (X designation)
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
- NMFC Code: 128520 - Hydraulic PTOs, Pumps, Motors, etc.
Additional Information
The Chelsea 680 Series is suited for vocational applications including aerial work, dump truck and trailer, refuse, fire and rescue, snow and ice removal, service trucks, and blower and product pump systems. The series offers thirty-two output options, four internal speed ratios, and ten shift options, including Chelsea's 360-degree rotatable flange for flexible pump fitment. Part number 680GHAHX-A3XY is also referenced as SP680GHAHX-A3XY. Refer to 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 for detailed service and application information.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
