Description
The Chelsea 489 Series Power Take-Off Assembly, part number 489GSAHX-V5XD or 489GSAHXV5XD, mounts directly to an 8-bolt transmission opening on manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing eliminates the adapter plate, reducing both installation time and potential leak paths. This unit delivers intermittent torque in the 250 lb-ft range and output power of 46-55 HP, with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. The output shaft is a 1-1/4″ round with key. Tapered bearings replace needle bearings for greater load-bearing capacity. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening – no adapter plate required
Wire/cable mechanical shift type; electric over air shift option also available in the 489 Series
1-1/4″ round output shaft with key
Intermittent torque rating 201-300 lb-ft; shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to Chelsea 442 Series for parts-counter familiarity and serviceability
Kit-style construction simplifies field service; greaseable output options reduce spline fretting and corrosion
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable Mechanical
- Output Shaft Type: 1-1/4″ Round with Key
- Intermittent Torque: 201-300 lb-ft (301-400 Nm) – 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
- Lubrication: No Pressure Lube (X) or Pressure Lube (P) – see model code
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture
Additional Information
The Chelsea 489 Series is designed for aerial equipment, vocational and municipal trucks, dump trucks, utility trucks, snow and ice removal equipment, and fire and rescue apparatus. The 489 Series shares internal components with the Chelsea 442 Series, and the kit-style housing makes bench or field service straightforward. Twenty-seven output configurations are available across the series, including Chelsea’s 360-degree rotatable flange option. For technical documentation including the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US), contact Pro Gear and Transmission.
