The Chelsea 680ZSDAX-V3AF or 680ZSDAXV3AF is a 680 Series Power Take-Off built for 8-bolt manual transmission applications, including Eaton Fuller, Volvo/Mack, and Daimler/Detroit platforms. The 680 Series features a cast iron housing and tapered cone bearings on the output shaft for high torque capacity, with an intermittent torque rating of 375 lb-ft (508 Nm). The series-characteristic space-saving air shift cover maximizes clearance under the truck, and the input shaft uses tapered bearings rather than needle bearings for greater load-bearing capability. Continuous operation is supported with a 30% de-rating. Applications include aerial, dump truck, refuse, fire and rescue, snow and ice removal, and pneumatic blower service. Call us to confirm proper fit for your transmission and application.
Features
8-bolt mounting for most manual transmission applications including Eaton Fuller, Volvo/Mack, and Daimler/Detroit
Cast iron housing with tapered cone bearings on the output shaft for high torque capacity
Intermittent torque rating: 375 lb-ft (508 Nm); continuous operation supported with 30% de-rating
Space-saving air shift cover design for maximum clearance under the truck
Input shaft uses tapered bearings instead of needle bearings for greater load capability
Suited for aerial, dump truck, refuse, fire/rescue, snow and ice removal, and pneumatic blower applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque: 375 lb-ft (508 Nm) - check application pages for actual rating
- 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
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
- Housing: Cast iron
- Bearings: Tapered cone on output shaft; tapered on input shaft
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 680ZSDAX-V3AF belongs to the 680 Series, one of Chelsea's most widely applied medium- to heavy-duty PTO families. The series offers 32 output options, four internal speed ratios, and ten shift options, making it adaptable across a wide range of vocational truck builds. A deep mount housing option is available within the series for Mack transmission applications. Output configurations across the 680 Series include SAE A pump flange, SAE B pump flange, ISO 7652 pump flange, and driveline outputs. The 680 Series is covered in the Chelsea 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual and the 680 Series Parts List (HY25-2660-M1_US). Contact Pro Gear and Transmission to confirm the correct output and shift configuration for your specific truck.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
