Chelsea 489 Series PTO Assembly part number 489ZQAHX-A3XD or 489ZQAHXA3XD is an 8-bolt, wire/cable mechanical shift power take-off built for manual transmissions including Eaton Fuller, Mack, Tremec, and Volvo applications. The one-piece cast iron housing bolts directly to the 8-bolt transmission opening, eliminating the need for an adapter plate and reducing potential leak paths. The 489 Series delivers the same intermittent torque capacity as the 442 Series, rated at 250 lb-ft (339 Nm), with output power of 46-55 HP (31-40 kW). Shaft power is 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 1-1/4" round output shaft with key is supported by tapered bearings for greater load-bearing capability than needle-bearing designs. Call us to confirm proper fit for your transmission.
The Chelsea 489 Series is suited for aerial equipment, utility trucks, snow and ice removal, fire and rescue, dump truck and trailer, and other vocational and municipal applications. The series offers eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange with greaseable shaft. Part number 489ZQAHX-A3XD or 489ZQAHXA3XD is sold by Pro Gear and Transmission.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift with electric-over-air shift option available in the 489 Series
Intermittent torque rating: 250 lb-ft (339 Nm), consistent with 442 Series capacity
Output shaft: 1-1/4" round with key, supported by tapered bearings for enhanced load capacity
Kit-style design shares internal parts with the Chelsea 442 Series, simplifying service and parts sourcing
Greaseable output options to reduce pump shaft spline fretting and corrosion
Tech Specs
- Intermittent Torque: 250 lb-ft / 339 Nm (check application pages for actual torque ratings)
- Continuous Torque: De-rate intermittent rating by 30% (check application pages for actual torque ratings)
- Shift Type: Wire/Cable Mechanical
- Output Power: 46-55 HP / 31-40 kW
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 8-Bolt
- Product Series: 489
- Transmission Compatibility: Eaton Fuller, Volvo, Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
- Lubricant: X = No Pressure Lube, P = Pressure Lube
Additional Information
The Chelsea 489 Series is suited for aerial equipment, utility trucks, snow and ice removal, fire and rescue, dump truck and trailer, and other vocational and municipal applications. The series offers eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange with greaseable shaft. Part number 489ZQAHX-A3XD or 489ZQAHXA3XD is sold by Pro Gear and Transmission.
