Description
The Chelsea 489GSAHX-V3XK or 489GSAHXV3XK is a 489 Series Power Take-Off assembly designed for 8-bolt manual transmission openings, including Eaton/Fuller, Volvo/Mack, and Tremec units. The one-piece cast iron housing bolts directly to the transmission without an adapter plate, removing one potential leak path. Shift is wire/cable mechanical. The 1-1/4″ round output shaft with keyway delivers up to 250 lb-ft intermittent torque (339 Nm) and shaft power of 24 HP at 500 RPM or 48 HP at 1000 RPM. Tapered bearings replace needle bearings for increased load capacity. Internal components are shared with the Chelsea 442 Series, keeping your parts inventory manageable. Cross-references include S-10755 and TG8B-U6812-P1KX. Call us to confirm proper fit for your application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission, no adapter plate required
Wire/cable mechanical shift; electric-over-air shift option available within the 489 Series
1-1/4″ round output shaft with keyway
Intermittent torque rating: 250 lb-ft (339 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1000 RPM
Tapered bearings for greater load-bearing capability vs. needle bearings
Internal parts common to Chelsea 442 Series; kit-style design simplifies field service
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt, direct to transmission (no adapter plate)
- 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
- SHAFT POWER: 24 HP (18 kW) at 500 RPM; 48 HP (36 kW) at 1000 RPM
- OUTPUT POWER: 46-55 HP (31-40 kW)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other 8-bolt manual transmissions
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube (see model code)
- CROSS-REFERENCES: 489GSAHXV3XK, S-10755, S10755, TG8B-U6812-P1KX, TG8BU6812P1KX, WA20-08-7039, WA20087039
Additional Information
The Chelsea 489 Series fits vocational applications including utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The 489 Series shares internal components with the 442 Series, so shops already stocking 442 Series parts can service both units from the same inventory. Twenty-seven output options are available across the series, including a 360-degree rotatable flange with a greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift options are offered within the 489 Series family. For detailed parts information, refer to Chelsea 489 Series Parts List HY25-2442-M1_US or the Chelsea Service Manual HY25-6489-M1/US.
