The Chelsea 489GHAHX-A3AK is an 8-bolt Power Take-Off unit from the Chelsea 489 Series, designed to mount directly to manual transmissions including Eaton Fuller, Mack, and Tremec without an adapter plate. The one-piece cast iron housing bolts to the 8-bolt transmission opening and eliminates the adapter plate that creates an extra potential leak path. The 489 Series delivers intermittent torque in the 201-300 lb-ft range and output power of 46-55 HP, with a 1-1/4" round keyed output shaft. Wire/cable mechanical shift operation. Internal parts are common to the Chelsea 442 Series, and the series supports eleven internal speed ratios. A genuine Chelsea part sold by Pro Gear and Transmission.
Features
8-bolt mounting - fits directly to manual transmission openings on Eaton Fuller, Mack, Tremec, and Eaton Endurant without an adapter plate
One-piece cast iron housing reduces potential leak paths versus adapter-plate designs
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Output power: 46-55 HP (31-40 kW)
Output shaft: 1-1/4" round shaft with key
Wire/cable mechanical shift operation
Internal parts common to Chelsea 442 Series for broad serviceability
Tech Specs
- Series: Chelsea 489
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- 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
- Output Shaft: 1-1/4" Round Shaft with Key
- Housing Material: One-piece cast iron
- Compatible Transmissions: Eaton Fuller, Eaton Endurant, Mack, Tremec (8-bolt aperture)
- Part Number: 489GHAHX-A3AK
Additional Information
The Chelsea 489 Series is suited for vocational and municipal equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck operations. The series offers twenty-seven output options and eleven internal speed ratios. Strong tapered bearings replace needle bearings for improved load-bearing capability. Chelsea 489 Series service documentation includes the 489 Series Parts List (HY25-2442-M1_US) and Chelsea Service Manual (HY25-6489-M1/US), available through Parker's Product Support section.Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
