The Chelsea 489XQAHX-P3RK is an 8-bolt Power Take-Off unit from the 489 Series, designed to mount directly to manual transmissions including Eaton Fuller, Mack, and Tremec without an adapter plate. The one-piece cast iron housing eliminates the adapter plate leak path common to bolt-on PTO installations. This unit uses a wire/cable mechanical shift and delivers up to 250 lb-ft torque capacity, consistent with the 489 Series rating. Output is through a round shaft with 1-1/4 in. key. Internal parts share commonality with the Chelsea 442 Series, and the P3RK suffix indicates pressure lube configuration. Available from Pro Gear and Transmission.
Features
8-bolt direct mount to manual transmission, no adapter plate required
Wire/cable mechanical shift type
1-1/4 in. round shaft with key output
Pressure lube configuration (P suffix)
One-piece cast iron housing reduces potential leak paths
Internal parts common to Chelsea 442 Series
Tech Specs
- Series: Chelsea 489
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Shaft: Round Shaft, 1-1/4 in. Key
- Lubricant Configuration: Pressure Lube (P)
- Intermittent Torque (Series): 201-300 lb-ft
- Output Power (Series): 46-55 HP
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
- Compatible Transmissions: Eaton Fuller, Mack, Tremec (8-bolt opening)
- Dimensions (H x W x L): 8.5 in. x 10.75 in. x 14.5 in.
Additional Information
The Chelsea 489 Series PTO is suited for utility trucks, dump truck and trailer applications, snow and ice removal equipment, and fire and rescue vehicles. The 489 Series features tapered bearings instead of needle bearings for increased load-bearing capability. Twenty-seven output options are available across the series, including Chelsea's 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios are offered within the series. The kit-style PTO design simplifies field service. Part number SP489XQAHX-P3RK is an alternate reference for this unit.Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
