4160 Sec. Conn. Rod Kit

The 4160 Sec. Conn. Rod Kit is a precision secondary linkage component engineered for Holley 4010 and 4160 carburetors. Built for serious boaters and high-performance marine engine builders, this rod kit maintains critical fuel delivery calibration in demanding saltwater and freshwater applications. Whether you're running a tournament bass rig or a weekend cruiser with a carbureted engine, the secondary rod ensures smooth throttle progression and consistent fuel metering across the entire RPM range.

Constructed from durable steel with cadmium plating, the 4160 Sec. Conn. Rod Kit resists corrosion in the harsh marine environment where salt spray and moisture accelerate wear on standard components. The cadmium finish protects against rust while maintaining dimensional stability—critical because even microscopic wear in secondary linkage geometry throws off fuel curve timing and throttle response. Designed specifically for vacuum secondary operation, this rod synchronizes secondary barrel opening with engine demand, preventing hesitation or bog during acceleration and maintaining stable idle characteristics when trolling or holding position.

Anglers and boaters running original or rebuilt Holley 4160 carburetors will benefit from this factory-specification replacement, especially after years of hard use or seasonal storage. Installation is straightforward for anyone familiar with carburetor service, and the compact design (3.5 x 1.05 x 4.95 inches) fits standard Holley secondary linkage assemblies without modification. This single rod kit addresses a common wear point that directly impacts throttle feel and fuel economy—essential when you're miles from shore and need reliable engine response.