The Chelsea 680QFLZX-V3RK or 680QFLZXV3RK is a medium to heavy duty power take-off from the Chelsea 680 Series, designed for manual transmission applications with an 8-bolt PTO aperture. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft for extended service life under high-torque demand. It is well suited for pneumatic blowers, aerial equipment, dump trucks, refuse vehicles, fire and rescue apparatus, and snow and ice removal. A deep mount housing option accommodates Mack transmission installations, while the space-saving air shift cover maximizes clearance beneath the chassis. Continuous operation is supported with a 30% de-rating. Call us to confirm proper fit for your specific transmission and application.
Features
Chelsea 680 Series, 8-bolt mounting for most manual transmission applications
Cast iron housing with tapered cone bearings on the output shaft
Deep mount housing option available for Mack transmission installations
Space-saving air shift cover design for maximum underchassis clearance
Continuous operation capable with 30% de-rating
Suited for high-torque applications including pneumatic blowers, aerial, dump truck, refuse, and fire and rescue equipment
Tech Specs
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit
- Shift Type: Wire/Cable or Mechanical
- Continuous Operation: Yes, with 30% de-rating
- Intermittent Torque (Series): 375 lb-ft (508 Nm) - check application pages for actual torque rating
- Output Power (Series): 56+ HP / 51+ kW
- Shaft Power (Series): 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Output Options: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Housing Material: Cast Iron
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 680 Series is built around four internal speed ratios and up to ten shift options, with thirty-two output configurations including a 360-degree rotatable flange for flexible pump fitment. Output shaft types available 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, DIN 5462 pump spline, and a 1410 companion flange. The 680 Series is classified under NMFC Code 128520 (Hydraulic PTOs, Pumps, Motors, etc.). This unit is sold by Pro Gear and Transmission. Not sure this is your part? Give us a call to confirm the right fit for your transmission and hydraulic system.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
