The Chelsea 489 Series Power Take-Off Assembly, part number 489GQAHX-A3XD or 489GQAHXA3XD, mounts directly to 8-bolt transmission openings on most manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing eliminates the need for an adapter plate, cutting potential leak paths at the mounting face. Intermittent torque capacity for the 489 Series is 250 lb-ft (339 Nm), matching the 442 Series. Shift is wire/cable mechanical. The 1-1/4" round output shaft is available with or without keyway. Shaft power output runs 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal components are common to the Chelsea 442 Series, keeping service parts easy to source. Call us to confirm proper fit for your transmission application.

Cross-reference numbers for Chelsea 489GQAHX-A3XD: 1450-489GQAHXA3XD, 1450489GQAHXA3XD, 2000XEA011SE, CHL489GQAHXA3XD, S-10744, S10744, TG8BU6808A1BX, WA20-08-7021, WA20087021. The 489 Series fits vocational applications including utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles.
Features
Chelsea 489 Series, 8-bolt direct-mount housing eliminates adapter plate and reduces leak paths
Intermittent torque: 250 lb-ft (339 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Wire/cable mechanical shift; electric-over-air shift option also available in this series
1-1/4" round output shaft, available with or without key
Internal parts common to Chelsea 442 Series for simplified service parts sourcing
Kit-style construction with greaseable output options for easier field servicing
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt (direct-mount, no adapter plate required)
- Shift Type: Wire/Cable Mechanical
- Intermittent Torque: 250 lb-ft (339 Nm) - 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; 1-1/4" Round with Key
- Mounting Bolt Hole Quantity: 8
- Transmission Compatibility: Eaton Fuller, Volvo/Mack, Tremec, and most 8-bolt manual transmissions
- Lubricant: X = No Pressure Lube; P = Pressure Lube
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
Additional Information

Cross-reference numbers for Chelsea 489GQAHX-A3XD: 1450-489GQAHXA3XD, 1450489GQAHXA3XD, 2000XEA011SE, CHL489GQAHXA3XD, S-10744, S10744, TG8BU6808A1BX, WA20-08-7021, WA20087021. The 489 Series fits vocational applications including utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles.
