Description
The Chelsea 489XHAHX-A3XK or 489XHAHXA3XK is an 8-bolt Power Take-Off from the 489 Series, designed for manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing bolts directly to the 8-bolt transmission opening, eliminating the adapter plate and reducing potential leak paths. Shift type is wire/cable mechanical. The 1-1/4″ round output shaft delivers up to 48 HP at 1,000 RPM, with an intermittent torque rating of 201-300 lb-ft for the series. Strong tapered bearings handle greater radial loads than needle-bearing designs. Internal parts are common with the Chelsea 442 Series. Also cross-referenced as S-22112 and CHE-489XHAHX-A3XK. Call us to confirm proper fit for your specific transmission and application.
Features
8-Bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate needed
Wire/cable mechanical shift; Electric over Air shift option available
1-1/4″ round output shaft; greaseable output options available
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Intermittent torque rating: 201-300 lb-ft (series rating; check application pages for actual torque values)
Kit-style PTO 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 / 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, and other manual transmissions with 8-bolt PTO aperture
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube
- CROSS REFERENCES: S-22112, S22112, CHE-489XHAHX-A3XK, CHE489XHAHXA3XK, CHL489XHAHXA3XK, 489XHAHXA3XK
Additional Information
The Chelsea 489 Series fits a broad range of vocational applications including utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The integral 8-bolt housing shares torque capacity with the 442 Series (250 lb-ft intermittent, per series data), and eleven internal speed ratios are available across the 489 Series lineup. Twenty-seven output configurations are offered at the series level, including a 360-degree rotatable flange option with a greaseable shaft to reduce pump shaft spline fretting and corrosion. For detailed parts information, refer to the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
