The Chelsea 489GHAHX-A3XD or 489GHAHXA3XD is a 489 Series power take-off assembly designed for manual transmissions with an 8-bolt PTO mounting aperture, including Eaton/Fuller, Mack, and Tremec units. The one-piece cast iron housing bolts directly to the transmission opening, eliminating the need for an adapter plate and reducing potential leak paths. This unit shifts via wire/cable mechanical actuation and delivers up to 250 lb-ft intermittent torque, matching the torque capacity of the 442 Series. Shaft power rates at 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 1-1/4" round output shaft is available with key, and strong tapered bearings handle load better than needle-bearing designs. Internal parts are common to the 442 Series, simplifying service. Applications include utility trucks, dump trucks, snow and ice removal, and fire and rescue equipment. Cross-references include S-22860 or S22860. Call us to confirm proper fit for your specific transmission.
The Chelsea 489 Series PTO is used across a wide range of vocational and municipal equipment markets, including aerial equipment, utility trucks, dump trucks, snow and ice removal vehicles, and fire and rescue apparatus. Eleven internal speed ratios and multiple shift options make this a versatile unit for varied hydraulic and mechanical drive applications. Twenty-seven output configurations are available across the series, including Chelsea's 360-degree rotatable flange. The kit-style design and shared internal components with the Chelsea 442 Series mean technicians familiar with the 442 can service the 489 with the same parts and procedures. For parts manual information, refer to Chelsea 489 Series Parts List HY25-2442-M1_US or the Chelsea Service Manual HY25-6489-M1/US.
Features
489 Series, 8-bolt one-piece cast iron housing mounts directly to transmission opening with no adapter plate required
Wire/cable mechanical shift; electric-over-air shift option also available
Intermittent torque capacity: 250 lb-ft (series rating; check application pages for actual torque)
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
1-1/4" round output shaft with key; greaseable output options to reduce spline fretting and corrosion
Kit-style construction with internal parts common to the Chelsea 442 Series 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
- Intermittent Torque: 250 lb-ft / 339 Nm (check application pages for actual torque ratings)
- Continuous Torque: De-rate intermittent torque rating by 30% (check application pages)
- 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
- Transmission Compatibility: Eaton/Fuller, Mack (Volvo/Mack), Tremec, and other manual transmissions with 8-bolt aperture
- Lubricant Type: X = No Pressure Lube; P = Pressure Lube
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
- Cross-References: 1450-489GHAHXA3XD, 1450489GHAHXA3XD, S-22860, S22860, CHL489GHAHXA3XD
Additional Information
The Chelsea 489 Series PTO is used across a wide range of vocational and municipal equipment markets, including aerial equipment, utility trucks, dump trucks, snow and ice removal vehicles, and fire and rescue apparatus. Eleven internal speed ratios and multiple shift options make this a versatile unit for varied hydraulic and mechanical drive applications. Twenty-seven output configurations are available across the series, including Chelsea's 360-degree rotatable flange. The kit-style design and shared internal components with the Chelsea 442 Series mean technicians familiar with the 442 can service the 489 with the same parts and procedures. For parts manual information, refer to Chelsea 489 Series Parts List HY25-2442-M1_US or the Chelsea Service Manual HY25-6489-M1/US.
