The Chelsea 489 Series Power Take-Off Assembly, part number 489XLAHX-V5AF or 489XLAHXV5AF, mounts directly to an 8-bolt transmission opening with a one-piece cast iron housing that eliminates the need for an adapter plate, reducing potential leak paths. This unit uses an air shift and delivers up to 250 lb-ft of intermittent torque, matching the torque capacity of the Chelsea 442 Series. The SAE B 2 or 4-bolt flange with a 1" 15-tooth SAE BB shaft accommodates a wide range of pump configurations. Shaft power output is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible transmissions include Eaton Fuller, Mack, and Tremec units with an 8-bolt PTO aperture. Call us to confirm proper fit for your specific transmission and application.
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.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, eliminating the adapter plate and reducing leak paths
Air 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
SAE B 2 or 4-bolt flange with a 1" 15-tooth SAE BB shaft
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)
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: L (25/34)
- Input Gear Designator: AH
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift without Installation Kit (V)
- Assembly Arrangement: 5
- Output Option: SAE B 2 or 4-Bolt Flange, SAE BB Shaft (1" 15T) (AF)
- 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
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 and diagrams: Chelsea 489 Series PTO parts list with prices
