The Chelsea 489 Series Power Take-Off, part number 489XSITX-A5AF or 489XSITXA5AF, is an 8-bolt air shift PTO built for most manual transmissions including Eaton Fuller, Eaton Endurant, Mack, and Tremec. The one-piece cast iron housing bolts directly to the 8-bolt transmission opening without an adapter plate, reducing both installation time and potential leak paths. The 489 Series delivers intermittent torque from 201 to 300 lb-ft and output power of 46 to 55 HP, backed by strong tapered bearings rather than needle bearings for greater load-carrying capability. An SAE B 2 or 4-bolt flange with a 1" 15-tooth SAE BB shaft and air shift mechanism are part of this series configuration. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
8-bolt direct-mount cast iron housing, no adapter plate required
Air shift operation
Intermittent torque rating: 201 to 300 lb-ft (301 to 400 Nm)
Output power: 46 to 55 HP (31 to 40 kW)
SAE B 2 or 4-bolt flange with a 1" 15-tooth SAE BB shaft
Tapered bearings replace needle bearings for higher load capacity
Internal parts common to the Chelsea 442 Series
Tech Specs
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: S (24/22)
- Input Gear Designator: IT
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 5
- Output Option: SAE B 2 or 4-Bolt Flange, SAE BB Shaft (1" 15T) (AF)
- Intermittent Torque: 201 to 300 lb-ft (301 to 400 Nm)
- Output Power: 46 to 55 HP (31 to 40 kW)
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM
- Housing Material: Cast Iron
- Compatible Transmissions: Eaton Fuller, Eaton Endurant, Mack, Tremec (8-bolt aperture)
- NMFC Code: 128520 (Hydraulic PTOs, Pumps, Motors, etc.)
Additional Information
Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
