The Chelsea 680 Series Power Take-Off, part number 680XFAHX-P3XV or 680XFAHXP3XV, is an 8-bolt mount PTO built for medium- to heavy-duty manual transmission applications. The 680 Series features a cast iron housing with tapered cone bearings on the output shaft, making it well suited for higher-torque work such as pneumatic blowers and hydraulic pump drives. Compatible with Eaton/Fuller, Volvo/Mack, and Daimler/Detroit transmission families, including a deep-mount housing option for Mack applications. The series carries an intermittent torque rating of 301-400 lb-ft and supports continuous operation with a 30% de-rating. Output options span SAE A and SAE B pump flanges, driveline configurations, and multiple shaft types. Available from Pro Gear and Transmission. Call us to confirm proper fit for your transmission and application.
Features
8-bolt mounting pattern fits most manual transmissions with 8-bolt PTO apertures
Cast iron housing with tapered cone bearings on the output shaft for load handling
Intermittent torque rating of 301-400 lb-ft (501+ Nm)
Compatible with Eaton/Fuller, Volvo/Mack, and Daimler/Detroit transmissions
Deep-mount housing option available for Mack transmission applications
Suitable for aerial, dump truck, fire and rescue, refuse, blower, and service truck applications
Tech Specs
- Mounting Type: 8-Bolt
- Series: Chelsea 680
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit
- Intermittent Torque: 301-400 lb-ft (501+ Nm)
- Continuous Operation: Yes, with 30% de-rating
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Shift Type: Wire/Cable or Mechanical
- Housing Material: Cast Iron
- Output Shaft Bearing: Tapered Cone
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
Additional Information
The Chelsea 680 Series is a versatile platform with 32 output options, four internal speed ratios, and ten shift configurations. Chelsea's 360-degree rotatable flange is among the output choices, giving installers flexibility when aligning a hydraulic pump. The space-saving air shift cover is designed to maximize clearance under the truck. Typical applications include aerial equipment, snow and ice removal, fire and rescue, dump trucks, service trucks, refuse vehicles, and blower and product pump installations. Part number 680XFAHX-P3XV is sold by Pro Gear and Transmission. Not sure this is the right PTO for your transmission? 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.
