The Holley 112-118 throttle base plate assembly is a complete, bolt-on replacement for the lower body of Model 4150 four-barrel carburetors, including list numbers 0-4776, 0-1850C, and 0-1850S. Cast from aluminum and pre-assembled with a new throttle shaft, throttle blades, and linkage, it restores crisp throttle response and proper sealing on carburetors with worn shafts or damaged base plates.

Holley 112-118 Technical Specifications:

• Direct replacement throttle base plate for Model 4150 carburetors
• Fits Holley list numbers 0-4776, 0-1850C, and 0-1850S
• Includes new throttle shaft, throttle blades, and throttle linkage
• Cast aluminum construction
• Installs without modification
• Sold individually