Description
The Chelsea 489XLAHX-A3AZ or 489XLAHXA3AZ is a 489 Series power take-off assembly for manual transmissions with an 8-bolt PTO mounting opening. The one-piece cast iron housing bolts directly to the transmission face, removing the need for an adapter plate and reducing potential leak paths. Wire/cable mechanical shift is standard on this unit. Output shaft is a 1-1/4″ round shaft with keyway. The 489 Series carries an intermittent torque rating of 201-300 lb-ft and delivers up to 48 HP at 1,000 RPM. Compatible transmissions include Eaton Fuller, Mack, and Tremec. Also referenced as CHE-489XLAHX-A3AZ and WA20-08-7123. Call us to confirm proper fit for your application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission face without an adapter plate
Wire/cable mechanical shift; electric-over-air shift option available
1-1/4″ round output shaft with keyway
Intermittent torque rating: 201-300 lb-ft (301-400 Nm); shaft output up to 48 HP at 1,000 RPM
Internal parts common to the Chelsea 442 Series
Kit-style construction simplifies service; greaseable output options reduce spline fretting and corrosion
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable Mechanical
- Output Shaft Type: 1-1/4″ Round with Key
- Intermittent Torque: 201-300 lb-ft (301-400 Nm)
- 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
- Lubricant: X = No Pressure Lube; P = Pressure Lube
- Transmission Compatibility: Eaton Fuller, Mack, Tremec, Volvo/Mack (8-bolt aperture)









