The Chelsea 489 Series Power Take-Off, part number 489XLAHX-A5GQ or 489XLAHXA5GQ, is an 8-bolt air shift PTO designed for most 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. The 489 Series carries an intermittent torque rating of 201-300 lb-ft and delivers up to 55 HP output. Output is through a greaseable SAE B 2 or 4-bolt flange. Internal components are common to the Chelsea 442 Series, and strong tapered bearings replace needle bearings for greater load-bearing capability. Call us to confirm proper fit for your application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening without an adapter plate
Air shift type
SAE B 2 or 4-bolt flange with a 7/8 inch 13-tooth SAE B output shaft and greaseable shaft option to reduce spline fretting and corrosion
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Output power up to 55 HP / 40 kW
Internal parts common to Chelsea 442 Series; tapered bearings instead of needle bearings
Tech Specs
- 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: Air Shift (A)
- Assembly Arrangement: 5
- Output Option: Greaseable SAE B 2 or 4-Bolt Flange, SAE B Shaft (7/8" 13T), Rotated 90 Degrees (GQ)
- 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
- Dimensions (H x W x L): 8.38 in. x 10.38 in. x 14.25 in.
- Product Series: 489
Additional Information
The Chelsea 489 Series fits applications including utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. The series offers eleven internal speed ratios and twenty-seven output options, including Chelsea's 360-degree rotatable flange. Compatible transmissions include Eaton Fuller, Eaton Endurant, Mack, and Tremec manual transmissions with an 8-bolt PTO aperture. Kit-style construction simplifies field service. For service documentation, Parker publishes the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
