The Chelsea 489GHAHX-T5SQ is a Power Take-Off (PTO) from the Chelsea 489 Series, designed for 8-bolt manual transmission openings on applications including Eaton Fuller, Mack, and Tremec gearboxes. The one-piece cast iron housing bolts directly to the 8-bolt aperture, eliminating the need for an adapter plate and reducing potential leak paths. Shift type is air shift with a PTO/dump pump combo valve. The output is an SAE B 4-bolt flange with a 7/8" 13-tooth SAE B shaft. The 489 Series carries an intermittent torque rating of 201-300 lb-ft and output power of 46-55 HP. Internal parts are common to the Chelsea 442 Series. Call us to confirm proper fit for your specific transmission and application.
Features
Chelsea 489 Series Power Take-Off, part number 489GHAHX-T5SQ or 489GHAHXT5SQ
8-bolt direct-mount cast iron housing, no adapter plate required
Air shift with a PTO/dump pump combo valve
SAE B 4-bolt flange with a 7/8" 13-tooth SAE B shaft
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Output power: 46-55 HP; internal parts common to the Chelsea 442 Series
Tech Specs
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount with Metric Studs (G)
- Gear Ratio Code: H (23/35)
- Input Gear Designator: AH
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift with PTO/Dump Pump Combo Valve (without Kick-Out, with Neutral Spring Return) (T)
- Assembly Arrangement: 5
- Output Option: SAE B 4-Bolt Flange, SAE B Shaft (7/8" 13T) (SQ)
- Intermittent Torque: 201-300 lb-ft (301-400 Nm)
- Output Power: 46-55 HP (31-40 kW)
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM
- Housing Material: One-piece cast iron
- Product Series: Chelsea 489
Additional Information
The Chelsea 489 Series PTO fits most manual transmissions with an 8-bolt PTO aperture, including Eaton Fuller, Eaton Endurant, Mack, and Tremec. The integral one-piece cast iron housing removes the need for an adapter plate, which reduces potential leak points compared to designs that use a separate adapter. Internal components are shared with the Chelsea 442 Series, making service parts widely available. The 489 Series offers strong tapered bearings in place of needle bearings for greater load-bearing capability. Typical applications include utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. For service documentation, reference Chelsea Parts Manual 489 Series Parts List HY25-2442-M1_US and Service Manual HY25-6489-M1/US.Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
