The Chelsea 489 Series Power Take-Off, part number 489GRAHX-A3RY or 489GRAHXA3RY, is an 8-bolt PTO designed for most manual transmissions including Eaton Fuller, Mack, and Tremec. The integral 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. Output is via a 1-1/4" round keyed shaft. The 489 Series carries an intermittent torque rating of 201-300 lb-ft and delivers up to 46-55 HP output. Strong tapered bearings replace needle bearings for greater load capacity. Call us to confirm proper fit for your transmission and application.
Features
8-bolt integral cast iron housing mounts directly to compatible manual transmissions without an adapter plate
Wire/cable mechanical shift type
1-1/4" round keyed output shaft
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Output power range: 46-55 HP (31-40 kW)
Tapered bearings for greater load-bearing capability over needle-bearing designs
Tech Specs
- Series: Chelsea 489
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Shaft Type: Round Shaft, 1-1/4" Key
- 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
- Lubricant: X = No Pressure Lube
Additional Information
The Chelsea 489 Series PTO fits most manual transmissions with an 8-bolt PTO aperture, including Eaton Endurant, Mack, and Tremec. Common applications include utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. Internal parts are common to the Chelsea 442 Series, simplifying service inventory. The kit-style design makes field servicing straightforward. Twenty-seven output options are available across the 489 Series, and eleven internal speed ratios and shift configurations make this a versatile platform for vocational and municipal equipment.Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
