The Chelsea 489 Series Power Take-Off, part number 489XCAHX-A5GZ or 489XCAHXA5GZ, is an 8-bolt mount PTO assembly for manual transmissions including Eaton Fuller, Mack, and Tremec. Its one-piece cast iron housing bolts directly to the 8-bolt transmission opening, removing the need for an adapter plate and reducing potential leak paths. Shift is air shift. The output is an SAE B 4-bolt flange. The 489 Series shares internal parts with the Chelsea 442 Series and uses tapered bearings rather than needle bearings for greater load-bearing capacity. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Intermittent torque rating for the 489 Series is 201-300 lb-ft (301-400 Nm); check application pages for the actual torque rating for your specific installation. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Air shift; electric-over-air shift option also available in the 489 Series
Greaseable SAE B 4-bolt flange with a 1-1/4" 14-tooth SAE C shaft
Tapered bearings replace needle bearings for greater load-bearing capability
Internal parts common to Chelsea 442 Series for simplified parts sourcing
Greaseable output options available to reduce shaft spline wear and corrosion
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt (direct to transmission, no adapter plate)
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: C (17/37)
- Input Gear Designator: AH
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 5
- Output Option: Greaseable SAE B 4-Bolt Flange, SAE C Shaft (1-1/4" 14T) (GZ)
- INTERMITTENT TORQUE (Series): 201-300 lb-ft / 301-400 Nm (check application pages for actual torque rating)
- Continuous Torque: De-rate intermittent rating by 30% (check application pages for actual torque rating)
- Shaft Power: 24 HP (500 RPM) / 48 HP (1,000 RPM) | 18 kW (500 RPM) / 36 kW (1,000 RPM)
- OUTPUT POWER (Series): 46-55 HP / 31-40 kW
- Transmission Compatibility: Eaton Fuller, Mack, Tremec, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture
Additional Information
Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
