The Chelsea 680XQAHX-W5XD or 680XQAHXW5XD is a medium- to heavy-duty Power Take-Off from the Chelsea 680 Series, designed for manual transmissions with an 8-bolt PTO aperture. The 680 Series uses a cast iron housing with tapered cone bearings on both the input and output shafts, delivering higher load-bearing capability than needle-bearing designs. This series carries an intermittent torque rating of 375 lb-ft (508 Nm) and is engineered for higher-torque applications including pneumatic blowers, dump truck hydraulics, aerial equipment, and refuse vehicles. Continuous operation is supported with a 30% de-rating. The space-saving air shift cover is designed to maximize clearance under the truck. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt mounting for most manual transmission applications including Eaton/Fuller, Volvo/Mack, Daimler/Detroit
Cast iron housing with tapered cone bearings on input and output shafts for higher torque capacity
375 lb-ft (508 Nm) intermittent torque rating; continuous operation supported with 30% de-rating
Space-saving air shift cover design for maximum clearance under the truck
Deep mount housing option available for Mack transmission applications
Suited for aerial, dump truck, refuse, fire and rescue, snow and ice removal, and blower/pump applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Air Shift (Wire/Cable or Mechanical options available in series)
- Intermittent Torque Rating: 375 lb-ft (508 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Housing Material: Cast Iron
- Bearing Type: Tapered Cone Bearings (input and output shafts)
- Output Options: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Compatible Transmissions: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others with 8-bolt PTO aperture
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 680 Series is supported by the 680 Series Owner's Manual and Parts List (HY25-2660-M1_US), as well as Chelsea's PTO General Information Catalog. Output shaft options across the series include a 1-1/4 in. round shaft with 5/16 in. key, SAE A (5/8 in. - 9T) pump spline, SAE B (7/8 in. - 13T) pump spline, SAE BB (1 in. - 15T) pump spline, SAE C (1-1/4 in. - 14T) pump spline, and a 1410 companion flange. Four internal speed ratios are available within the series. Shaft power output for the series is rated at 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. Also referenced as SP680XQAHX-W5XD in some catalog systems. Not sure this is the right PTO for your truck? Give us a call.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
