Description
The Chelsea 489 Series Power Take-Off Assembly, part number 489GRAHX-A5XK or 489GRAHXA5XK, is an 8-bolt PTO designed for manual transmissions including Eaton Fuller, Mack, and Tremec. Its one-piece cast iron housing mounts directly to the 8-bolt transmission opening, eliminating the adapter plate and reducing potential leak paths. The wire/cable mechanical shift operates a 1-1/4″ round output shaft. Intermittent torque capacity for the 489 Series runs 201-300 lb-ft, with output power ranging 46-55 HP. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal parts are common with the Chelsea 442 Series, keeping serviceability straightforward. Cross-references include 1450-489GRAHXA5XK and S-19849. Call us to confirm proper fit for your specific transmission.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, eliminating the adapter plate and reducing leak paths
Wire/cable mechanical shift; Electric over Air shift option also available
1-1/4″ round output shaft with key; greaseable output options reduce shaft spline fretting and corrosion
Intermittent torque rating: 201-300 lb-ft (301-400 Nm) for the 489 Series; shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to Chelsea 442 Series simplify parts inventory and servicing
Kit-style construction allows in-field service without full unit removal
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (integral one-piece cast iron housing, no adapter plate required)
- SHIFT TYPE: Wire/Cable Mechanical (Electric over Air option available)
- OUTPUT SHAFT TYPE: 1-1/4″ Round; 1-1/4″ Round with key
- INTERMITTENT TORQUE (Series): 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 (500 RPM) / 48 HP (1,000 RPM); 18 kW (500 RPM) / 36 kW (1,000 RPM)
- TRANSMISSION COMPATIBILITY: Eaton Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube
- MOUNTING BOLT HOLE QUANTITY: 8
- CROSS REFERENCES: 1450-489GRAHXA5XK, 1450489GRAHXA5XK, CHL489GRAHXA5XK, S-19849, S19849, WA20-08-7204, WA20087204
