The Chelsea 489 Series Power Take-Off Assembly, part number 489XLAHX-A5RF or 489XLAHXA5RF, mounts directly to an 8-bolt transmission opening with a one-piece cast iron housing that eliminates the need for an adapter plate, reducing both installation time and potential leak paths. This unit uses a wire/cable mechanical shift and features a 1-1/4" round output shaft with key. The 489 Series fits most manual transmissions including Eaton Fuller, Mack, and Tremec applications. Shaft power output runs 24 HP at 500 RPM and 48 HP at 1,000 RPM. Tapered bearings replace needle bearings for greater load-bearing capability. Internal parts share commonality with the Chelsea 442 Series. Call us to confirm proper fit for your specific transmission.

The Chelsea 489 Series is suited for aerial, vocational and municipal equipment, utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer applications. Twenty-seven output options are available across the series, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift options are offered within the 489 Series family. For parts manual information, refer to Chelsea document 489 Series Parts List HY25-2442-M1_US or the 489 Series Service Manual HY25-6489-M1/US.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Tapered bearings for greater load-bearing capability over needle bearings
Kit-style design simplifies service; internal parts common to Chelsea 442 Series
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt
- SHIFT TYPE: Wire/Cable Mechanical
- 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 1,000 RPM
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm); check application pages for actual torque ratings
- 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, vocational and municipal equipment, utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer applications. Twenty-seven output options are available across the series, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift options are offered within the 489 Series family. For parts manual information, refer to Chelsea document 489 Series Parts List HY25-2442-M1_US or the 489 Series Service Manual HY25-6489-M1/US.
Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
