This Holley vacuum secondary throttle connecting rod is a direct-fit replacement for Holley Model 4160, Avenger Series, 4150 (vacuum secondary), and Model 4010 carburetors.
Specifications:
- Brand: Holley
- Category: Air and Fuel Delivery
- Material: Steel
- Finish: Zinc
- Model: 4160
- Product Type: Secondary Linkage
- Part Number: 20-53
FAQ
What carburetors is this connecting rod compatible with?
Holley Model 4160, Avenger Series, and 4150 carburetors with vacuum secondaries, plus Model 4010 carburetors.
What is it made of?
Zinc-finished steel.
What does this rod control?
It connects the vacuum secondary diaphragm assembly to the secondary throttle shaft for smooth secondary throttle actuation.

