The Chelsea 489ZFDAP-W5LD or 489ZFDAPW5LD is a 489 Series power take-off assembly designed for manual transmissions with an 8-bolt PTO aperture, including Eaton/Fuller, Volvo/Mack, and other compatible units. The one-piece cast iron housing bolts directly to the 8-bolt opening, eliminating the adapter plate that is a common leak point on other mounting arrangements. This unit uses tapered bearings in place of needle bearings for greater load-carrying capability. Shift is wire/cable mechanical, and the output shaft is a 1-1/4" round with key. Intermittent torque rating for the 489 Series is 250 lb-ft (339 Nm); shaft power is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal components are common to the Chelsea 442 Series, simplifying parts stocking. Call us to confirm proper fit for your transmission and application.

The Chelsea 489 Series is suited for aerial, vocational, and municipal equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer use. Twenty-seven output options are available across the 489 Series, including Chelsea's 360-degree rotatable flange with greaseable shaft. Eleven internal speed ratios and shift configurations are offered within the series. For parts and service documentation, refer to the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift; electric-over-air shift option also available
1-1/4" round output shaft with key
Intermittent torque: 250 lb-ft (339 Nm) series rating; shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Tapered bearings replace needle bearings for greater load capacity
Internal parts common to Chelsea 442 Series; kit-style design simplifies service
Greaseable output options to reduce spline fretting and corrosion
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct to transmission, no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical (Electric over Air option available)
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- INTERMITTENT TORQUE: 250 lb-ft / 339 Nm (series rating; 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 (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
Additional Information

The Chelsea 489 Series is suited for aerial, vocational, and municipal equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer use. Twenty-seven output options are available across the 489 Series, including Chelsea's 360-degree rotatable flange with greaseable shaft. Eleven internal speed ratios and shift configurations are offered within the series. For parts and service documentation, refer to the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
