The Fabco FAT30 auxiliary transmission, part number 873-1136-004 or 8731136004, is rated for 600 horsepower and 30,000 foot-pounds of input torque at up to 3,000 RPM. The unit runs three speed ratios: Direct 1.00:1, Low Underdrive 2.50:1, and Overdrive 0.86:1, shifted via integral air shift cylinders. Both input and output shafts measure 3 inches in diameter, and the unit mates to 1810 flanges. A cast iron housing provides structural rigidity, and a pump-fed internal lubrication reservoir keeps the ball and needle bearings supplied. The SAE 8-bolt top-mount PTO pad supports power takeoff integration. Lubricant capacity is 14 quarts of 75W90 Synthetic GL4/GL5 with no add-ons installed. A genuine Fabco part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Rated 600 HP and 30,000 ft-lb input torque at up to 3,000 RPM
Three speed ratios: Direct 1.00:1, Low Underdrive 2.50:1, Overdrive 0.86:1
Integral air shift cylinders for pneumatic range selection
Cast iron housing with ball and needle bearings
SAE 8-bolt top-mount PTO pad included
14-quart internal lubrication reservoir, 75W90 Synthetic GL4/GL5 specification
Tech Specs
- Input Torque: 30,000 foot-pounds
- Horsepower: 600 HP
- Input Speed: 3,000 RPM
- Input Shaft Diameter: 3 inches
- Output Shaft Diameter: 3 inches
- Flange Type: 1810
- Speed Ratios: Direct 1.00:1, Low Underdrive 2.50:1, Overdrive 0.86:1
- Housing Construction: Cast iron
- Shift Mechanism: Integral air shift cylinders
- Bearings: Ball and needle bearings
- Lubrication System: Pump with internal reservoir
- Lubricant Specification: 75W90 Synthetic GL4/GL5
- Lubricant Capacity: 14 quarts (no add-ons installed)
- PTO Mounting: SAE 8-bolt top-mount pad
