The Chelsea 680GSAHX-P3GZ is an 8-bolt Power Take-Off from the Chelsea 680 Series, designed for medium to heavy duty manual transmission applications including Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other compatible transmissions. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft for extended service life in demanding, higher-torque applications such as pneumatic blowers. A space-saving air shift cover provides maximum clearance under the truck. The series supports wire/cable and mechanical shift types and offers multiple output configurations including SAE A and SAE B pump flanges. Intermittent torque for the 680 Series is rated at 375 lb-ft (508 Nm); continuous operation is supported with a 30% de-rating. Available from Pro Gear and Transmission.
Features
8-bolt mounting configuration for broad manual transmission coverage
Cast iron housing with tapered cone bearings on the output shaft
Supports wire/cable and mechanical shift types
Compatible transmission manufacturers: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others
Output options include SAE A and SAE B pump flanges, ISO 7652 pump flange, and driveline
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Type: Round Shaft (1-1/4" - 5/16" Key), SAE A (5/8" - 9T) Pump Spline, SAE B (7/8" - 13T) Pump Spline, SAE BB (1" - 15T) Pump Spline, SAE C (1-1/4" - 14T) Pump Spline, DIN 5462 Pump Spline, 1410 Companion Flange
- Intermittent Torque: 375 lb-ft (508 Nm) - Check Application Pages for Actual Torque Ratings
- Continuous Operation: Yes, with 30% de-rating
- Output Power: 56+ HP (42+ kW)
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Lubricant: Pressure Lube
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
- Part Number: 680GSAHX-P3GZ
Additional Information
The Chelsea 680 Series was designed with higher-torque vocational applications in mind, including pneumatic blowers, dump trucks, refuse vehicles, fire and rescue, aerial equipment, and snow and ice removal. A deep mount housing option is available within the 680 Series for Mack transmission applications. The 680 Series offers 32 output options and four internal speed ratios, with Chelsea's 360-degree rotatable flange available for improved pump fitment. Applicable reference documents include the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual, 680 Series Parts List (HY25-2660-M1_US), and 680 Series Sales Literature from Parker Chelsea.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
