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

Product Overview

This aftermarket replacement throttle body bypass coolant hose kit is intended for GM LS LS1 applications and addresses the coolant steam port crossover connection at the throttle body. The kit routes coolant flow between the throttle body and the cooling system so the throttle body area is warmed during engine operation, and coolant circulation continues normally through the crossover path. It is supplied as a braided hose assembly with fittings for the throttle body bypass and steam port crossover connection.

Key Features & Performance

• Routes coolant to and from the throttle body as part of the engine cooling system
• Braided hose construction with a flexible inner hose and protective outer braid
• Includes the throttle body bypass and steam port crossover hose assembly
• Designed to replace the original rubber throttle body coolant hose on LS LS1 applications
• Commonly used with LS swap, LS1 intake, and throttle body upgrade projects

Fitment & Compatibility

• for GM LS LS1 engine applications

Common Uses

• Replacing a cracked, leaking, or deteriorated throttle body bypass hose
• Servicing the throttle body coolant circuit after intake or throttle body changes
• Restoring original coolant routing on LS engines during repair or rebuild

Technical Specifications

• Product Type: Throttle Body Bypass Coolant Steam Port Crossover Hose Kit
• Part Number(s): LS LS1
• Model Application(s): GM LS LS1
• Engine Application(s): GM LS LS1
• General Application: Throttle body coolant bypass and steam port crossover

Frequently Asked Questions

Q: What does the throttle body coolant bypass hose do? A: It carries coolant from the engine to the throttle body and back, allowing engine heat to warm the throttle body so ice does not form on the throttle blade in cold conditions. The steam port crossover connection helps route coolant through the throttle body area as part of the cooling system.

Q: How do I verify fitment for my engine? A: Check your existing hose part number and confirm your engine is a GM LS LS1. Compare the routing and connection points on your throttle body and intake before ordering, since fitment can vary by year, model, and existing part number.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.