The Chelsea 660ZFAHX-W3XD or 660ZFAHXW3XD is a 660 Series Power Take-Off built for medium to heavy duty truck applications. It mounts to popular 6-bolt manual transmissions from Eaton/Fuller, Volvo, and Mack. The 660 Series is built around a cast iron housing with tapered cone bearings on both the input and output shafts, giving it a series torque capacity up to 375 lb-ft intermittent. Continuous operation is supported with a 30% de-rating. Output options in the 660 Series span SAE A, SAE B, and SAE C pump flanges as well as driveline configurations. Shift types include wire/cable and mechanical. Call us to confirm the exact ratio, output, and shift configuration for this specific part number before ordering.
Features
Chelsea 660 Series, 6-bolt mounting for popular manual transmissions
Cast iron housing with tapered cone bearings on input and output shafts
Intermittent torque capacity up to 375 lb-ft (508 Nm) series rating
Continuous operation supported with 30% de-rating
Shift options include wire/cable and mechanical
Output configurations include SAE A, SAE B, SAE C pump flanges and driveline
Tech Specs
- Mounting Type: 6-Bolt
- Transmission Fit: Popular 6-bolt manual transmissions (Eaton/Fuller, Volvo/Mack)
- Intermittent Torque (Series): Up to 375 lb-ft (508 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable or Mechanical
- Output Type: SAE A, SAE B, SAE C Pump Flange; ISO 7652 Pump Flange; Driveline
- Housing Material: Cast iron
- Bearing Type: Tapered cone bearings (input and output shafts)
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 660 Series is suited for aerial devices, dump trucks, service trucks, snow and ice removal equipment, and blower or product pump applications. The space-saving air shift cover is designed to maximize clearance under the truck. The 360-degree rotatable flange option in the 660 Series family allows flexible pump positioning. Parker documents covering this series include the 660 Series Parts List (HY25-2660-M1_US) and the 660 Series Owner's Manual. Contact Pro Gear and Transmission to verify the specific ratio, output configuration, and shift type for part number 660ZFAHX-W3XD before placing your order.Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
