The Chelsea 489GRAHX-A5RB or 489GRAHXA5RB is a 489 Series Power Take-Off (PTO) designed for manual transmissions with an 8-bolt PTO mounting aperture, including Eaton Fuller, Mack, and Tremec gearboxes. The one-piece cast iron housing bolts directly to the 8-bolt opening, eliminating the need for an adapter plate and reducing potential leak paths. Shift type is air shift. The 489 Series delivers intermittent torque in the 201-300 lb-ft range and output power of 46-55 HP. Tapered bearings replace needle bearings for greater load-bearing capability. Pro Gear and Transmission carries this genuine Chelsea unit. Call us to confirm proper fit for your application.
Features
Chelsea 489 Series PTO, part number 489GRAHX-A5RB or 489GRAHXA5RB
8-bolt mounting housing bolts directly to transmission opening, no adapter plate required
Air shift type
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Output power: 46-55 HP (31-40 kW)
Tapered bearings for greater load-bearing capability versus needle-bearing designs
Tech Specs
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount with Metric Studs (G)
- Gear Ratio Code: R (22/24)
- Input Gear Designator: AH
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 5
- Output Option: Rotatable SAE B 4-Bolt Flange, SAE B Shaft (7/8" 13T) (RB)
- 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 (8-bolt aperture)
- Housing Material: One-piece cast iron
Additional Information
Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
