The Chelsea 489XQAHX-A3AF or 489XQAHXA3AF is a 489 Series power take-off assembly built for manual transmissions with an 8-bolt PTO mounting opening, including Eaton/Fuller, Volvo/Mack, and Tremec applications. The one-piece cast iron housing bolts directly to the transmission face, eliminating the need for an adapter plate and removing a potential leak path. Shift type is wire/cable mechanical. The 1-1/4" round output shaft is available with or without key. Intermittent torque capacity for the 489 Series is 201-300 lb-ft; continuous-duty torque is de-rated 30% (check application pages for your actual rating). Shaft power output is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal parts share commonality with the Chelsea 442 Series. Common applications include utility trucks, dump trucks, and snow and ice removal equipment. Call us to confirm proper fit for your specific transmission.

Cross-reference numbers for 489XQAHX-A3AF or 489XQAHXA3AF: 1450-489XQAHXA3AF, 1450489XQAHXA3AF, 2000XEA011RB, CHE-489XQAHX-A3AF, CHE489XQAHXA3AF, CHL 489XQAHX A3AF, CHL489XQAHXA3AF, S-18401, S18401, WA20-08-7124, WA20087124.
Features
489 Series, 8-bolt direct-mount one-piece cast iron housing eliminates adapter plate and reduces leak paths
Wire/cable mechanical shift; electric-over-air shift option also available in the 489 Series
1-1/4" round output shaft with key option; 27 output configurations available in the series including 360-degree rotatable flange
Intermittent torque: 201-300 lb-ft (301-400 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to Chelsea 442 Series simplify service and parts stocking
Kit-style construction for straightforward in-field servicing; greaseable output options reduce spline fretting
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt direct-mount (no adapter plate required)
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round; 1-1/4" Round with key
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm) - check application pages for actual torque rating
- CONTINUOUS TORQUE: De-rate intermittent torque rating by 30% - check application pages for actual torque rating
- 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
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
- LUBRICATION: 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 489XQAHX-A3AF or 489XQAHXA3AF: 1450-489XQAHXA3AF, 1450489XQAHXA3AF, 2000XEA011RB, CHE-489XQAHX-A3AF, CHE489XQAHXA3AF, CHL 489XQAHX A3AF, CHL489XQAHXA3AF, S-18401, S18401, WA20-08-7124, WA20087124.
