The Chelsea 489DFMAX-56XK or 489DFMAX56XK is a Power Take-Off unit from the Chelsea 489 Series, designed for 8-bolt manual transmission openings including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing bolts directly to the transmission without an adapter plate, reducing potential leak paths and installation time. The 489 Series delivers intermittent torque in the 201-300 lb-ft range and output power of 46-55 HP, with a wire/cable mechanical shift. The output shaft is a 1-1/4" round shaft with key. Strong tapered bearings replace needle bearings for improved load-bearing capability. Call us to confirm proper fit for your application.
Features
Chelsea 489 Series PTO, part number 489DFMAX-56XK or 489DFMAX56XK
8-bolt direct-mount cast iron housing eliminates adapter plate and reduces leak paths
Wire/cable mechanical shift operation
1-1/4" round keyed output shaft
Intermittent torque rating: 201-300 lb-ft (301-400 Nm); output power: 46-55 HP
Tapered bearings for greater load-bearing capability over needle-bearing designs
Fits most 8-bolt manual transmissions including Eaton Fuller, Mack, and Tremec
Tech Specs
- 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
- Compatible Transmissions: Eaton Fuller, Mack, Tremec (8-bolt aperture)
- Product Series: 489
Additional Information
The Chelsea 489 Series is engineered for aerial, vocational, and municipal equipment applications including utility trucks, dump trucks, snow and ice removal, and fire and rescue vehicles. Internal components are common to the Chelsea 442 Series, simplifying parts inventory and service. The kit-style design makes field service straightforward. Twenty-seven output options are available across the 489 Series platform, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. This part is sold by Pro Gear and Transmission. Not sure this is your part? Give us a call.Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
