The Chelsea 489XSAHX-V5XK or 489XSAHXV5XK is a 489 Series Power Take-Off assembly built for manual transmissions with an 8-bolt mounting aperture, including Eaton Fuller, Mack, and Tremec applications. The one-piece cast iron housing bolts directly to the transmission opening, eliminating the need for an adapter plate and reducing potential leak paths. Shift type is wire/cable mechanical. The output shaft is a 1-1/4" round configuration with key, and the output mount type is SAE B 2 or 4-bolt flange. Intermittent torque for the 489 Series is rated at 250 lb-ft (339 Nm). Shaft power is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal parts are common to the Chelsea 442 Series, making component sourcing straightforward. Cross-references include 1450-489XSAHXV5XK, S-10918, and TG8S-U6812-P3KX. Call us to confirm proper fit for your transmission.

The Chelsea 489 Series PTO is suited for aerial equipment, utility trucks, snow and ice removal, fire and rescue, dump trucks and trailers, and other vocational and municipal applications. The tapered bearing design provides greater load-bearing capability compared to needle bearing alternatives. 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, eliminating adapter plate and reducing leak paths
Wire/cable mechanical shift type; electric over air shift option available within the 489 Series
Intermittent torque rating: 250 lb-ft (339 Nm) per 489 Series specification
Shaft power output: 24 HP at 500 RPM, 48 HP at 1,000 RPM
1-1/4" round keyed output shaft with SAE B 2 or 4-bolt flange mount
Internal parts shared with Chelsea 442 Series; kit-style design simplifies service
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable Mechanical
- Output Shaft Type: 1-1/4" Round with Key
- Output Shaft Mount Type: SAE B 2 or 4-Bolt Flange
- Intermittent Torque: 250 lb-ft (339 Nm) - check application pages for actual torque ratings
- Output Power: 46-55 HP (31-40 kW)
- Shaft Power: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- Lubricant: X = No Pressure Lube, P = Pressure Lube
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Tremec and other manual transmissions with 8-bolt aperture
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
- Cross-References: 1450-489XSAHXV5XK, 1450489XSAHXV5XK, S-10918, S10918, CHL489XSAHXV5XK, TG8S-U6812-P3KX, TG8SU6812P3KX
Additional Information

The Chelsea 489 Series PTO is suited for aerial equipment, utility trucks, snow and ice removal, fire and rescue, dump trucks and trailers, and other vocational and municipal applications. The tapered bearing design provides greater load-bearing capability compared to needle bearing alternatives. 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.
