The Chelsea 680 Series Power Take-Off, part number 680QHLZX-D3XY or 680QHLZXD3XY, is an 8-bolt PTO built for medium- to heavy-duty manual transmission applications, including Eaton Fuller, Volvo/Mack, and Daimler/Detroit platforms. The cast iron housing and tapered cone bearings on the output shaft deliver a 375 lb-ft intermittent torque rating (check application pages for your specific value). The series supports continuous operation with a 30% de-rating and shaft power output of 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. Common applications include aerial work, dump trucks, refuse, fire and rescue, blower and product pumps, and snow and ice removal. Call us to confirm proper fit for your transmission.
Features
8-bolt mounting fits most manual transmission applications with an 8-bolt PTO aperture
Cast iron housing with tapered cone bearings on the output shaft for load capacity
Intermittent torque rating up to 375 lb-ft (501+ Nm) - verify rating for your specific application
Continuous operation supported with 30% de-rating
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
Compatible with Eaton/Fuller, Volvo/Mack, and Daimler/Detroit transmission families
Tech Specs
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit
- Intermittent Torque: 375 lb-ft / 508 Nm (check application pages for actual rating)
- Continuous Operation: Yes, with 30% de-rating
- Shaft Power: 36 HP (500 RPM), 71 HP (1000 RPM), 107 HP (1500 RPM)
- Output Power: 56+ HP / 51+ kW
- Shift Type: Wire/Cable or Mechanical
- Housing Material: Cast Iron
- Output Shaft Bearing: Tapered Cone
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 680 Series is designed for higher-torque vocational work including pneumatic blowers, aerial equipment, and refuse applications. A deep mount housing option is available for Mack transmission applications. The space-saving air shift cover is designed to maximize clearance under the truck. The 680 Series features four internal speed ratios and ten shift options, with thirty-two output configurations including Chelsea's 360-degree rotatable flange for pump fitment flexibility. Output shaft types across the series include round shaft, SAE A, SAE B, SAE BB, SAE C pump splines, DIN 5462 pump spline, and 1410 companion flange options. For series service information, refer to the 680 Series Parts List HY25-2660-M1_US and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual available from Parker Chelsea.Parts manual and diagrams: Chelsea 680 Series PTO parts list with prices
