The Chelsea 489GRAHX-A3XJ is an 8-bolt Power Take-Off unit from the 489 Series, designed for most manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing bolts directly to the 8-bolt transmission opening, eliminating the need for an adapter plate and reducing potential leak paths. Shift type is wire/cable mechanical. The 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. Strong tapered bearings replace needle bearings for greater load-bearing capability. Available from Pro Gear and Transmission.
Features
8-bolt mounting - bolts directly to 8-bolt transmission opening with no adapter plate required
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Tapered bearings for greater load-bearing capability over needle bearing designs
Compatible with Eaton Fuller, Mack, Tremec, and most manual transmissions
Tech Specs
- Series: Chelsea 489
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Shaft Type: 1-1/4" Round Shaft with Key
- Intermittent Torque: 201-300 lb-ft (301-400 Nm)
- Output Power: 46-55 HP (31-40 kW)
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM)
- Housing Material: One-piece cast iron
- Transmission Compatibility: 8-bolt manual transmissions including Eaton Fuller, Mack, Tremec
Additional Information
The Chelsea 489 Series shares internal parts with the 442 Series and offers eleven internal speed ratios. Twenty-seven output options are available within the series, including Chelsea's 360-degree rotatable flange with greaseable shaft. Typical applications include utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles.Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
