The Chelsea 680ZQDAX-V5XV or 680ZQDAXV5XV is an 8-bolt power take-off from the Chelsea 680 Series, designed for medium to heavy-duty manual transmission applications. The 680 Series is built around a cast iron housing with tapered cone bearings on the output shaft, a combination that supports higher intermittent torque applications such as pneumatic blowers. The series carries an intermittent torque rating of up to 375 lb-ft (508 Nm), with continuous operation available at a 30% de-rating. Shift options include wire/cable and mechanical. Compatible transmission families include Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others with an 8-bolt PTO aperture. A deep mount housing option is available for Mack applications. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt mounting for broad manual transmission coverage including Eaton/Fuller, Volvo/Mack, and Daimler/Detroit
Cast iron housing with tapered cone bearings on the output shaft for higher torque capacity
Intermittent torque rating up to 375 lb-ft (508 Nm); continuous operation with 30% de-rating
Wire/cable and mechanical shift types available within the 680 Series
Output options include SAE A, SAE B, SAE BB, SAE C pump flanges, round shaft, and 1410 companion flange
Designed for high-torque vocational uses including pneumatic blowers, dump trucks, aerial, fire and rescue, and refuse applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque: Up to 375 lb-ft (508 Nm) - check application pages for actual torque rating
- Continuous Operation: Yes, with 30% de-rating
- Output Types: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Output Shaft Types: 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), DIN 5462 Pump Spline, 1410 Companion Flange
- Output Power: 56+ HP (42+ kW)
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Lubricant Options: Pressure Lube or No Pressure Lube
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other 8-bolt aperture transmissions
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 680 Series is supported by several Parker/Chelsea technical documents, including the 680 Series Parts List (HY25-2660-M1_US), 680 Series Sales Literature, the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual, and the Detroit DT12 Adapter Owner's Manual covering 238/489/680/826/880 Series. Additional references include Chelsea PTO Stud Kits (HY25-2002-M1_US) and the Chelsea Power Take-Off General Information Catalog. These documents cover installation, parts identification, and application guidance for the 680 Series family. Contact Pro Gear and Transmission if you need help identifying the correct 680 Series configuration for your truck.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
