Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, eliminating the adapter plate and reducing leak paths
Wire/cable mechanical shift with electric-over-air shift option available in the 489 Series
Intermittent torque rating up to 250 lb-ft (339 Nm); check application pages for actual torque ratings
Shaft power: 24 HP (18 kW) at 500 RPM, 48 HP (36 kW) at 1,000 RPM
1-1/4" round output shaft with key; greaseable output options available to reduce spline fretting and corrosion
Kit-style design simplifies service; internal parts common to the Chelsea 442 Series
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (one-piece cast iron housing, no adapter plate required)
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- INTERMITTENT TORQUE: 250 lb-ft (339 Nm) - Check Application Pages for Actual Torque Ratings
- CONTINUOUS TORQUE: De-rate intermittent torque rating by 30% - Check Application Pages for Actual Torque Ratings
- OUTPUT POWER: 46-55 HP (31-40 kW)
- SHAFT POWER: 24 HP (18 kW) at 500 RPM; 48 HP (36 kW) at 1,000 RPM
- COMPATIBLE TRANSMISSIONS: Eaton Fuller, Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube
Additional Information

The Chelsea 489 Series is designed for aerial, vocational, and municipal equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer operations. The series offers eleven internal speed ratios and twenty-seven output options, including Chelsea's 360-degree rotatable flange. The kit-style PTO design shares internal components with the 442 Series, simplifying parts inventory for shops already servicing Chelsea equipment.
Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
