The Chelsea 489 Series Power Take-Off Assembly, part number 489XHAHX-V3GY or 489XHAHXV3GY, is an 8-bolt PTO designed to mount directly to the transmission opening on most manual transmissions, including Eaton Fuller, Volvo/Mack, and Tremec, without an adapter plate. The one-piece cast iron housing eliminates a common leak path while delivering the same intermittent torque capacity as the Chelsea 442 Series. Shift actuation is wire/cable mechanical. The output shaft is a 1-1/4" round with key, and shaft power rates at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal components are shared with the 442 Series, making parts sourcing straightforward. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.

The Chelsea 489 Series PTO shares internal components with the proven 442 Series, giving maintenance teams a single parts inventory across both platforms. The 489 Series is suited for utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue applications. Twenty-seven output options are available across the 489 Series, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift configurations are offered within the series.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, eliminating the need for an adapter plate
Wire/cable mechanical shift actuation; electric-over-air shift option available in the 489 Series
Output shaft: 1-1/4" round with key
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Intermittent torque rating: 201-300 lb-ft (301-400 Nm); check application pages for actual torque ratings
Internal parts common to the Chelsea 442 Series; kit-style design simplifies servicing
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- OUTPUT POWER: 46-55 HP (31-40 kW)
- SHAFT POWER: 24 HP at 500 RPM; 48 HP at 1,000 RPM (18 kW at 500 RPM; 36 kW at 1,000 RPM)
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm) -- check application pages for actual torque ratings
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/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 PTO shares internal components with the proven 442 Series, giving maintenance teams a single parts inventory across both platforms. The 489 Series is suited for utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue applications. Twenty-seven output options are available across the 489 Series, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift configurations are offered within the series.
