The Chelsea 489 Series Power Take-Off Assembly, part number 489XLAHX-W3XD or 489XLAHXW3XD, is an 8-bolt mount PTO designed for manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing bolts directly to the 8-bolt transmission opening, eliminating the need for an adapter plate and reducing potential leak paths. This unit features wire/cable mechanical shift, a 1-1/4" round output shaft with key, and delivers up to 48 HP at 1,000 RPM. Intermittent torque capacity for the 489 Series is 201-300 lb-ft (check application pages for actual torque ratings). Internal parts are common to the Chelsea 442 Series, simplifying parts management. Call us to confirm proper fit for your application.

The Chelsea 489 Series PTO is suited for aerial, vocational, and municipal equipment applications including utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The 489 Series offers eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange. Tapered bearings replace needle bearings for greater load-bearing capability. For service documentation, refer to the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
Interchanges:
- CHE-489XLAHX-W3XD
- SE128
- TG8SU6807C1BX
- WA20-08-7022
- WA8SC01X-W1SE
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, eliminating the need for an adapter plate
Wire/cable mechanical shift; electric-over-air shift option available within the 489 Series
1-1/4" round output shaft with key
Series intermittent torque rating: 201-300 lb-ft (check application pages for actual torque ratings); shaft power up to 48 HP at 1,000 RPM
Kit-style construction shares internal parts with the Chelsea 442 Series for easier servicing
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: L (25/34)
- Input Gear Designator: AH
- Lube Option: No Pressure Lube (X)
- Shift Option: Cable (Wire) Shift (W)
- Assembly Arrangement: 3
- Output Option: 1-1/4" Round Standard Shaft with 5/16" Key (XD)
- Intermittent Torque: 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 opening
- Dimensions (H x W x L): 8.38" x 10.38" x 14.25"
Additional Information

The Chelsea 489 Series PTO is suited for aerial, vocational, and municipal equipment applications including utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The 489 Series offers eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange. Tapered bearings replace needle bearings for greater load-bearing capability. For service documentation, refer to the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
