The Chelsea 489 Series Power Take-Off Assembly, part number 489XAAHX-A5AZ or 489XAAHXA5AZ, mounts directly to an 8-bolt transmission opening on most manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing eliminates the adapter plate used on some configurations, removing a potential leak path without sacrificing torque capacity. Intermittent torque rating for the 489 Series is 250 lb-ft (339 Nm); continuous use requires de-rating by 30% per application page guidance. The 1-1/4" round output shaft (with key) is driven by strong tapered bearings for greater load capacity than needle-bearing designs. Shift is wire/cable mechanical, with an electric-over-air option available. Output power reaches 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal components are common to the Chelsea 442 Series, making parts interchange straightforward at the bench. Call us to confirm proper fit for your transmission and application.
Features
8-bolt one-piece cast iron housing mounts directly to compatible manual transmissions, eliminating the adapter plate and reducing potential leak paths
Wire/cable mechanical shift standard; electric-over-air shift option also available
250 lb-ft (339 Nm) intermittent torque rating; continuous torque requires 30% de-rating per application specs
Output shaft: 1-1/4" round with key, supported by tapered bearings for higher load capacity than needle-bearing designs
Shaft power output: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to the Chelsea 442 Series simplify service; kit-style design with greaseable output options
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt (one-piece cast iron housing, no adapter plate required)
- Shift Type: Wire/Cable Mechanical (electric-over-air option available)
- Intermittent Torque: 250 lb-ft (339 Nm) - check application pages for actual torque ratings
- Continuous Torque: De-rate intermittent rating by 30% - check application pages for actual torque ratings
- Output Power: 46-55 HP (31-40 kW)
- Shaft Power: 24 HP (18 kW) at 500 RPM; 48 HP (36 kW) at 1,000 RPM
- Output Shaft Type: 1-1/4" Round with key
- Lubricant: X = No Pressure Lube, P = Pressure Lube
- Compatible Transmissions: Eaton/Fuller, Mack, Tremec, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture
Additional Information
