The Chelsea 489 Series Power Take-Off, part number 489XHDAX-A5AF or 489XHDAXA5AF, is an air-shift PTO built for 8-bolt manual transmission openings found on Eaton Fuller, Mack, Tremec, and Eaton Endurant transmissions. Its one-piece cast iron housing bolts directly to the transmission without an adapter plate, eliminating that additional potential leak path. The 489 Series is rated for 201-300 lb-ft intermittent torque and delivers 46-55 HP output. The SAE B 2 or 4-bolt flange output with a 1" 15-tooth SAE BB shaft and tapered bearing design provide greater load-bearing capability than needle-bearing alternatives. Internal parts are common with the Chelsea 442 Series, simplifying service. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Chelsea 489 Series PTO, part number 489XHDAX-A5AF or 489XHDAXA5AF
8-bolt direct-mount cast iron housing, no adapter plate required
Air shift type
SAE B 2 or 4-bolt flange with a 1" 15-tooth SAE BB shaft
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Output power: 46-55 HP (34-41 kW); tapered bearings for greater load capacity than needle-bearing designs
Internal parts common to the Chelsea 442 Series for straightforward servicing
Tech Specs
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: H (23/35)
- Input Gear Designator: DA
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 5
- Output Option: SAE B 2 or 4-Bolt Flange, SAE BB Shaft (1" 15T) (AF)
- Intermittent Torque: 201-300 lb-ft (301-400 Nm)
- Output Power: 46-55 HP (31-40 kW)
- Shaft Power: 24 HP at 500 RPM; 48 HP at 1000 RPM
- Compatible Transmissions: Eaton Fuller, Mack, Tremec, Eaton Endurant (8-bolt aperture)
- Housing Material: One-piece cast iron
Additional Information
The Chelsea 489 Series is engineered for vocational applications including utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. The integral 8-bolt housing design removes the need for an adapter plate, reducing the number of potential leak points at the transmission interface. Tapered output bearings replace the needle bearings used in some competing designs, increasing load-bearing capacity. Twenty-seven output configurations are available across the series. Internal components are shared with the Chelsea 442 Series, meaning parts availability and technician familiarity are both strong. For service documentation, Parker publishes the 489 Series Parts List (HY25-2442-M1_US) and Service Manual (HY25-6489-M1/US).Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
Equivalent PTOs:
Matched by full model number. Check the mounting, input gear and output against the unit you are replacing before you order. Look up any Chelsea, Muncie or Bezares number on our Muncie to Chelsea PTO cross reference.
