The Chelsea 489GRITX-A3AF or 489GRITXA3AF is an 8-bolt power take-off from the Chelsea 489 Series, designed to mount directly to most manual transmissions including Eaton Fuller, Mack, and Tremec without an adapter plate. The one-piece cast iron housing bolts to the 8-bolt transmission opening and delivers the same torque capacity as the 442 Series at 250 lb-ft. Shift type is air shift. The output shaft is a 1" 15-tooth SAE BB shaft on an SAE B 2 or 4-bolt flange. Strong tapered bearings replace needle bearings for greater load-bearing capability. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
8-bolt one-piece cast iron housing mounts directly to most manual transmissions, no adapter plate required
Air shift operation
SAE B 2 or 4-bolt flange output with a 1" 15-tooth SAE BB shaft
Tapered bearings for greater load-bearing capability vs. needle-bearing designs
Intermittent torque rating: 201-300 lb-ft (301-400 Nm) at the series level
Output power: 46-55 HP (34-41 kW); shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM
Tech Specs
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount with Metric Studs (G)
- Gear Ratio Code: R (22/24)
- Input Gear Designator: IT
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 3
- Output Option: SAE B 2 or 4-Bolt Flange, SAE BB Shaft (1" 15T) (AF)
- Intermittent Torque: 201-300 lb-ft (301-400 Nm)
- Output Power: 46-55 HP (34-41 kW)
- Shaft Power: 24 HP at 500 RPM / 48 HP at 1,000 RPM
- Housing Material: One-piece cast iron
- Lubricant Code (X): No Pressure Lube
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
Parts manual and diagrams: Chelsea 489 Series PTO parts list with prices
