The Chelsea 489XCAHX-M4XQ or 489XCAHXM4XQ is a Power Take-Off unit from Chelsea's 489 Series, designed for manual transmissions with an 8-bolt PTO mounting aperture. The integral 8-bolt cast iron housing bolts directly to the transmission opening without an adapter plate, eliminating a potential leak path. This unit is constant mesh and delivers intermittent torque in the 201-300 lb-ft range. Output is rated at 46-55 HP intermittent, with shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 489 Series uses tapered bearings rather than needle bearings for greater load capacity. Common applications include utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. Available from Pro Gear and Transmission -- call us to confirm proper fit for your specific transmission.
Features
8-bolt integral cast iron housing mounts directly to transmission opening, no adapter plate required
Constant mesh operation (no shifter)
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Output power: 46-55 HP (34-41 kW) intermittent
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Tapered bearings replace needle bearings for greater load-bearing capability
Fits most manual transmissions including Eaton Fuller, Mack, and Tremec
Tech Specs
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: C (17/37)
- Input Gear Designator: AH
- Lube Option: No Pressure Lube (X)
- Shift Option: Constant Mesh (M)
- Assembly Arrangement: 4
- Output Option: SAE B 2 or 4-Bolt Flange, SAE B Shaft (7/8" 13T), Rotated 90 Degrees (XQ)
- Intermittent Torque: 201-300 lb-ft (301-400 Nm)
- Output Power: 46-55 HP (34-41 kW)
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
- Bearing Type: Tapered
- Compatible Transmissions: Eaton Fuller, Mack, Tremec (8-bolt aperture)
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
