The Chelsea 660XHAHX-A3XK or 660XHAHXA3XK is a Power Take-Off unit from the Chelsea 660 Series, designed to fit most popular 6-bolt manual transmissions including Eaton/Fuller and Volvo/Mack applications. The 660 Series carries a torque capacity up to 375 lb-ft, making it a step up from the 442 Series for medium to heavy duty vocational work. The cast iron housing and tapered cone bearings on the output shaft contribute to a long service life under demanding cycles. The space-saving air shift cover is engineered for maximum clearance under the truck. Common applications include dump trucks, aerial devices, service trucks, blower and product pumps, and snow and ice removal equipment. Call us to confirm proper fit for your specific transmission.
Features
Chelsea 660 Series PTO, part number 660XHAHX-A3XK or 660XHAHXA3XK
Fits most popular 6-bolt manual transmissions including Eaton/Fuller and Volvo/Mack
Torque capacity up to 375 lb-ft for medium to heavy duty vocational applications
Cast iron housing with tapered cone bearings on both input and output shafts
Space-saving air shift cover for maximum under-truck clearance
Suited for dump trucks, aerial devices, service trucks, and snow/ice removal equipment
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable or Mechanical
- Intermittent Torque Capacity: 375 lb-ft (508 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Compatible Transmissions: Eaton/Fuller, Volvo/Mack, and other 6-bolt manual transmissions
- Housing Material: Cast iron
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
