The Chelsea 489XCAHP-M4RK is an 8-bolt Power Take-Off unit from the Chelsea 489 Series, designed to bolt directly to most manual transmissions including Eaton Fuller, Mack, and Tremec without an adapter plate. The one-piece cast iron housing eliminates the need for a separate adapter, reducing potential leak paths and installation time. This unit is constant mesh and features a rotatable SAE B 2 or 4-bolt flange with a 7/8" 13-tooth SAE B shaft. The 489 Series carries an intermittent torque rating of 201-300 lb-ft and delivers up to 48 HP at 1,000 RPM via the output shaft. Strong tapered bearings replace needle bearings for greater load-bearing capability. Common applications in the 489 Series include utility trucks, dump trucks, and snow and ice removal equipment. Pro Gear and Transmission carries this genuine Chelsea part.
Features
8-bolt mounting aperture bolts directly to compatible manual transmissions - no adapter plate required
One-piece cast iron housing reduces potential leak paths
Constant mesh (no shifter)
Rotatable SAE B 2 or 4-bolt flange with a 7/8" 13-tooth SAE B shaft
Tapered bearings for greater load-bearing capability versus needle bearings
489 Series intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Tech Specs
- Series: Chelsea 489
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: C (17/37)
- Input Gear Designator: AH
- Lube Option: Pressure Lube (P)
- Shift Option: Constant Mesh (M)
- Assembly Arrangement: 4
- Output Option: Rotatable SAE B 2 or 4-Bolt Flange, SAE B Shaft (7/8" 13T) (RK)
- Intermittent Torque: 201-300 lb-ft (301-400 Nm)
- Output Power: 46-55 HP (31-40 kW)
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
- Compatible Transmissions: Eaton Fuller, Mack, Tremec (8-bolt aperture)
Additional Information
Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
