The Chelsea 489ZQDAX-A3RB or 489ZQDAXA3RB is a 489 Series Power Take-Off Assembly designed for manual transmissions with an 8-bolt PTO mounting aperture, including Eaton/Fuller, Volvo/Mack, and Tremec applications. The one-piece cast iron housing bolts directly to the 8-bolt opening, eliminating the need for an adapter plate and removing a potential leak path. This unit features a wire/cable mechanical shift, a 1-1/4" round output shaft with key, and delivers 24 HP at 500 RPM or 48 HP at 1000 RPM shaft power. Intermittent torque rating for the 489 Series is 201-300 lb-ft (301-400 Nm); check application pages for the actual rating for this configuration. Internal components are common with the Chelsea 442 Series. Call us to confirm proper fit for your application.
The Chelsea 489 Series PTO is suited for aerial, vocational, municipal, utility truck, dump truck, snow and ice removal, and fire and rescue applications. The 489 Series offers twenty-seven output options, including a 360-degree rotatable flange with greaseable shaft to help reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift options are available across the series. For service documentation, refer to the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US), available through Parker's product support resources.
Features
489 Series, 8-bolt one-piece cast iron housing - no adapter plate required
Wire/cable mechanical shift with electric-over-air shift option available
1-1/4" round output shaft with key
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Intermittent torque: 201-300 lb-ft (301-400 Nm) - see application pages for actual rating
Internal parts common to Chelsea 442 Series; kit-style design for easier servicing
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt (integral one-piece cast iron housing, no adapter plate)
- Shift Type: Wire/Cable Mechanical (electric-over-air shift option available)
- Output Shaft Type: 1-1/4" Round with key
- Output Power: 46-55 HP (31-40 kW)
- Shaft Power: 24 HP (18 kW) at 500 RPM; 48 HP (36 kW) at 1000 RPM
- Intermittent Torque: 201-300 lb-ft (301-400 Nm) - check application pages for actual torque rating
- Continuous Torque: De-rate intermittent rating by 30% - check application pages for actual rating
- Lubricant Type: X = No Pressure Lube; P = Pressure Lube
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture
Additional Information
The Chelsea 489 Series PTO is suited for aerial, vocational, municipal, utility truck, dump truck, snow and ice removal, and fire and rescue applications. The 489 Series offers twenty-seven output options, including a 360-degree rotatable flange with greaseable shaft to help reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift options are available across the series. For service documentation, refer to the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US), available through Parker's product support resources.
