The Chelsea 489DFMAX-A6XK is an 8-bolt Power Take-Off unit from the Chelsea 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 is wire/cable mechanical. Output is via a 1-1/4" round shaft with key. The 489 Series carries an intermittent torque rating of 201-300 lb-ft and delivers up to 48 HP at 1,000 RPM. Internal parts are common to the Chelsea 442 Series. Available from Pro Gear and Transmission.
Features
8-bolt mounting -- fits most manual transmissions including Eaton Fuller, Mack, and Tremec without an adapter plate
One-piece cast iron housing reduces potential leak paths versus adapter-plate designs
Wire/cable mechanical shift
1-1/4" round shaft with key output
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to Chelsea 442 Series for broad serviceability
Tech Specs
- Series: Chelsea 489
- Part Number: 489DFMAX-A6XK
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Shaft Type: Round Shaft, 1-1/4" 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)
- Lubricant Option (X): No Pressure Lube
- Housing Material: One-piece cast iron
Additional Information
The Chelsea 489 Series is suited for aerial, vocational, municipal, utility, dump truck, snow and ice removal, and fire and rescue applications. The series offers eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Strong tapered bearings replace needle bearings for greater load-bearing capability. Internal parts are shared with the Chelsea 442 Series, simplifying parts stocking and service. Reference documents include the 489 Series Parts List (HY25-2442-M1_US), the 489 Series Owner's Manual (340/348/442/447/489/660/680/823/863/880 Series), and the 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.
