For GM LS LS1 Throttle Body Bypass Coolant Steam Port Crossover Hose Braided Kit

Throttle Body Bypass Coolant Crossover Hose Kit for GM LS

This braided throttle body bypass coolant steam port crossover hose kit replaces the factory coolant lines on GM LS engines, routing coolant away from the throttle body to keep intake air temperatures down.

Overview

The throttle body bypass coolant crossover hose kit is a direct replacement for the factory coolant lines running to the throttle body on GM LS engines. By routing coolant away from the throttle body, this crossover hose kit keeps the intake charge cooler and helps prevent heat soak during hard use. It is built for LS swap builders, racers, and daily drivers running LS1 and related Gen III and Gen IV engines.

Built For Performance

• Braided hose construction resists heat, abrasion, and pressure better than standard rubber lines
• Bypasses the throttle body coolant circuit to reduce intake air temperatures
• Steam port crossover design routes coolant vapor to the radiator or surge tank
• Direct-fit routing keeps the engine bay clean during LS swaps
• Works with common LS intake and throttle body combinations

Fits These Machines

• for GM LS1 equipped vehicles
• for GM LS series Gen III and Gen IV engines
• for GM LS swap builds using a cable or drive-by-wire throttle body

On-The-Job Use

• LS engine swaps into classic cars and trucks
• Drag racing and track builds chasing lower intake temps
• Daily drivers wanting a cleaner and cooler coolant route
• Replacing cracked or heat-hardened factory coolant lines

Specs At A Glance

Good To Know

Q: What does this coolant crossover kit actually do? A: It reroutes coolant so it bypasses the throttle body, which helps keep intake air cooler and prevents heat soak.

Q: Will this fit my LS swap setup? A: It is built for GM LS series engines, but routing details can vary by intake and throttle body, so check your configuration before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.