The Chelsea 489QQMEX-66XY is an 8-bolt Power Take-Off unit from the 489 Series, designed to bolt directly to manual transmission openings on Eaton Fuller, Mack, Tremec, and similar gearboxes. The one-piece cast iron housing eliminates the need for an adapter plate, reducing potential leak paths and cutting installation time. Shift type is wire/cable mechanical. The series delivers intermittent torque in the 201-300 lb-ft range and shaft power of 24 HP at 500 RPM or 48 HP at 1,000 RPM. Output is through a 1-1/4" round keyed shaft. Internal parts are common to the Chelsea 442 Series, and the 489 Series supports eleven internal speed ratios.
Features
8-bolt one-piece cast iron housing mounts directly to compatible manual transmission openings
Wire/cable mechanical shift type
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
1-1/4" round keyed output shaft
Internal parts common to Chelsea 442 Series; eleven internal speed ratios available
Tech Specs
- Series: Chelsea 489
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- 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
- Output Shaft Type: 1-1/4" Round Shaft with Key
- Housing Material: One-piece cast iron
- Compatible Transmissions: Eaton Fuller, Mack, Tremec (8-bolt aperture)
Additional Information
The Chelsea 489 Series is supported by Parker service documentation including the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US). Typical applications for this series include utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. The 489 Series kit-style design simplifies field service, and tapered bearings replace needle bearings for greater load-bearing capability compared to earlier designs.Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
