The Chelsea 489GLAHX-A5AK is an 8-bolt Power Take-Off from the Chelsea 489 Series, designed to bolt directly to 8-bolt manual transmission openings on applications including Eaton Fuller, Mack, and Tremec transmissions. The one-piece cast iron housing eliminates the need for an adapter plate, reducing potential leak paths and cutting installation time. The 489 Series delivers intermittent torque of 201-300 lb-ft and output power of 46-55 HP, with a wire/cable mechanical shift and a 1-1/4" round keyed output shaft. Tapered bearings provide greater load-bearing capability compared to needle-bearing designs. Pro Gear and Transmission carries this genuine Chelsea unit for utility trucks, dump trucks, and vocational equipment.
Features
8-bolt mounting housing bolts directly to compatible manual transmission openings with no adapter plate required
Wire/cable mechanical shift operation
1-1/4" round keyed output shaft
Intermittent torque rating: 201-300 lb-ft (301-400 Nm) for the 489 Series
Output power: 46-55 HP (31-40 kW)
Strong tapered bearings for greater load-bearing capability over needle-bearing designs
Internal parts common to Chelsea 442 Series for simplified service
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Shaft Type: Round Shaft, 1-1/4" Key
- Intermittent Torque (Series): 201-300 lb-ft / 301-400 Nm
- Output Power (Series): 46-55 HP / 31-40 kW
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube
- Compatible Transmissions: Eaton Fuller, Mack, Tremec (8-bolt opening)
Additional Information
The Chelsea 489 Series shares internal components with the proven 442 Series, offering the same 250 lb-ft torque capacity in a one-piece cast iron housing. The 489 Series supports twenty-seven output options, including Chelsea's 360-degree rotatable flange with a greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios are available across the series. Common vocational applications include utility trucks, snow and ice removal equipment, fire and rescue vehicles, and dump trucks. For service documentation, Parker publishes the 489 Series Parts List (HY25-2442-M1_US) and Chelsea Service Manual (HY25-6489-M1/US).Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
