The Chelsea 680XFAHX-A5XY 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 engineered for higher torque demands, including pneumatic blower service, and carries an intermittent torque rating of 375 lb-ft (508 Nm) with continuous operation available at a 30% de-rating. A cast iron housing and tapered cone output shaft bearings contribute to long service life under sustained load. The series supports Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other transmission families, including a deep mount housing option for Mack applications. Also referenced as 680XFAHXA5XY. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt mounting for most manual transmission applications with 8-bolt PTO aperture
Cast iron housing with tapered cone bearings on output shaft for high torque capacity
Intermittent torque rating: 375 lb-ft (508 Nm); continuous operation with 30% de-rating
Deep mount housing option available for Mack transmission applications
Output power: 56+ HP (42+ kW); shaft power rated at 71 HP at 1,000 RPM
Compatible transmission families include Eaton/Fuller, Volvo/Mack, and Daimler/Detroit
Tech Specs
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other (deep mount housing option for Mack)
- Intermittent Torque: 375 lb-ft (508 Nm) - check application pages for actual torque ratings
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable or Mechanical
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, or Driveline
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 RPM
- Housing Material: Cast Iron
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 680 Series covers a broad range of vocational applications including aerial work, dump truck, refuse, fire and rescue, snow and ice removal, service trucks, and blower and product pump service. The series offers thirty-two output options and four internal speed ratios, giving operators flexibility for different pump mounting requirements. The space-saving air shift cover is designed to maximize clearance under the vehicle. Relevant Parker documentation for this series includes the 680 Series Parts List (HY25-2660-M1_US), the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual, and the 680 Series Sales Literature. Contact Pro Gear and Transmission to confirm the correct configuration for your transmission and hydraulic system.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
