The Chelsea 680QQMEX-66AZ is a 680 Series Power Take-Off designed for 8-bolt PTO aperture manual transmissions, including Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other applications. The cast iron housing and tapered cone bearings on the output shaft support the series' 375 lb-ft intermittent torque rating. Output options span SAE A and SAE B pump flanges, ISO 7652 pump flange, and driveline configurations. The space-saving air shift cover keeps clearance under the truck, and the deep mount housing option accommodates Mack transmission applications. A genuine Chelsea part available from Pro Gear and Transmission.
Features
8-bolt mounting for Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other manual transmission applications
Cast iron housing with tapered cone bearings on the output shaft
375 lb-ft (508 Nm) intermittent torque rating (check application pages for actual torque)
Output options include SAE A pump flange, SAE B pump flange, ISO 7652 pump flange, and driveline
Deep mount housing option for Mack transmission applications
Space-saving air shift cover for maximum clearance under the truck
Tech Specs
- Mounting Type: 8-Bolt
- Intermittent Torque: 375 lb-ft (508 Nm) - check application pages for actual torque rating
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Shift Type: Wire/Cable, Mechanical
- 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 Material: Cast Iron
Additional Information
The Chelsea 680 Series is suited for higher torque vocational applications including pneumatic blowers, aerial equipment, dump trucks, refuse trucks, fire and rescue, snow and ice removal, and service trucks. The 680 Series offers 32 output options including a 360-degree rotatable flange, four internal speed ratios, and ten shift options. A deep mount housing option is available specifically for Mack transmission applications. Parker Chelsea documents covering this series include the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual and the 680 Series Parts List (HY25-2660-M1_US).Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
