The Chelsea 489 Series Power Take-Off Assembly, part number 489XFITX-A3XQ or 489XFITXA3XQ, mounts directly to 8-bolt transmission openings on most manual transmissions including Eaton/Fuller and Volvo/Mack applications. The one-piece cast iron housing eliminates the need for an adapter plate, removing a common leak path. This unit uses a wire/cable mechanical shift and delivers intermittent torque in the 201-300 lb-ft range, with shaft power of 24 HP at 500 RPM and 48 HP at 1000 RPM. The 1-1/4" round output shaft accommodates a key. Strong tapered bearings replace needle bearings for improved load-bearing capability. Available with either no-pressure lube or pressure lube configuration. Call us to confirm proper fit for your transmission and application.

The Chelsea 489 Series is a versatile PTO platform with eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange. Typical applications include utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. For service information, refer to the 489 Series Parts List (Parker document HY25-2442-M1_US) and the Chelsea 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; electric-over-air shift option also available
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Shaft power output: 24 HP at 500 RPM, 48 HP at 1000 RPM
1-1/4" round output shaft with keyway; greaseable output options available
Internal parts common to the Chelsea 442 Series; kit-style design simplifies service
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct to transmission, no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round / 1-1/4" Round with Key
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm) - Check Application Pages for Actual Torque Ratings
- OUTPUT POWER: 46-55 HP (31-40 kW)
- SHAFT POWER: 24 HP (500 RPM) / 48 HP (1000 RPM) | 18 kW (500 RPM) / 36 kW (1000 RPM)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Other Manual Transmissions with 8-Bolt Opening
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
Additional Information

The Chelsea 489 Series is a versatile PTO platform with eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange. Typical applications include utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. For service information, refer to the 489 Series Parts List (Parker document HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
