The Chelsea 680GFAHX-A3XQ is a 680 Series Power Take-Off built for medium- to heavy-duty manual transmission applications with an 8-bolt PTO aperture. The 680 Series is a proven fit for Eaton Fuller transmissions and includes a deep-mount housing option for Mack applications. Its cast iron housing and tapered cone output shaft bearings support higher torque demands, making it well suited for pneumatic blowers, dump trucks, aerial units, and refuse equipment. The series offers wire/cable or mechanical shift, with output options including SAE A, SAE B, and driveline configurations. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt mounting for common medium- and heavy-duty manual transmission apertures
Cast iron housing with tapered cone bearings on the output shaft for high torque capacity
Deep-mount housing option suits Mack transmission applications
Designed for higher torque work such as pneumatic blowers and aerial equipment
Wire/cable or mechanical shift options available in the 680 Series
Series output power rating of 56+ HP; shaft power rated at 71 HP at 1,000 RPM
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Options: Round Shaft (1-1/4 in. with 5/16 in. key), SAE A (5/8 in. - 9T), SAE B (7/8 in. - 13T), SAE BB (1 in. - 15T), SAE C (1-1/4 in. - 14T), 1410 Companion Flange
- Series Intermittent Torque Rating: 375 lb-ft (508 Nm) - verify actual rating on application pages
- Series Output Power: 56+ HP (51+ kW)
- Series Shaft Power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
- Continuous Operation: Yes, with 30% de-rating
- Lubricant Type: X (No Pressure Lube)
- Transmission Compatibility (Series): Eaton/Fuller, Volvo/Mack, Daimler/Detroit
- Housing Material: Cast Iron
Additional Information
Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
