The Chelsea 489 Series Power Take-Off, part number 489XSAHX-A5RK or 489XSAHXA5RK, is an 8-bolt PTO assembly designed for manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing bolts directly to the 8-bolt transmission opening, eliminating the need for an adapter plate and reducing potential leak paths. Shift type is air shift. The output is a rotatable SAE B 2 or 4-bolt flange with a 7/8" 13-tooth SAE B shaft. Intermittent torque capacity for the 489 Series is 250 lb-ft (339 Nm); shaft power is rated at 24 HP at 500 RPM and 48 HP at 1000 RPM. Internal parts are common to the Chelsea 442 Series. Call us to confirm proper fit for your transmission and application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Air shift type; Electric over Air shift option available in the 489 Series
Rotatable SAE B 2 or 4-bolt flange with a 7/8" 13-tooth SAE B shaft
Intermittent torque rating: 250 lb-ft (339 Nm) per 489 Series application data
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Internal parts common to the Chelsea 442 Series; kit-style design simplifies service
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: S (24/22)
- Input Gear Designator: AH
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 5
- Output Option: Rotatable SAE B 2 or 4-Bolt Flange, SAE B Shaft (7/8" 13T) (RK)
- 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)
- Output Power: 46-55 HP / 31-40 kW
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM (18 kW at 500 RPM, 36 kW at 1000 RPM)
- Transmission Compatibility: Eaton Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO opening
Additional Information
Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
