Heater Core Bypass Hose EPDM Rubber for Chevy LS LT GEN3 4 5

Heater Core Bypass Hose EPDM Rubber for Chevy LS LT GEN3 4 5 is a thickened EPDM rubber coolant crossover designed to loop heater hose lines on GM LS and LT engines. Built to endure oil, coolant, and fuel exposure, this hose stays flexible and easy to clean, even with frequent maintenance. The custom molded U-shaped design fits onto the LS water pump and aligns the heater supply and return lines for a secure, leak-free connection across GM Chevrolet Pontiac LS/LT engines from 98-up (GEN 3, 4, 5).

Benefits & Tips

• Precise fit: The custom molded U‑hose design ensures the heater bypass lines align neatly with the LS water pump, reducing install time and potential leaks.
• Versatile sizing: End ports measure 5/8" and 3/4" to accommodate common heater supply and return connections on 98‑up LS/LT GEN 3, 4, 5 engines.
• Durable and easy to care for: Thickened EPDM rubber offers oil, coolant, and fuel resistance, helping it withstand engine bay conditions and simplifying post-work cleaning.

Product specifications

• Material: Thickened EPDM Rubber
• Finish: Oil, Coolant and Fuel-Resistant
• Hose ends ID: 5/8" and 3/4"
• Application: For GM Chevrolet Pontiac all LS, LT series 98-up LS LT GEN 3 4 5 Engine
• Origin: Mainland China
• Type: Heater Core Bypass Hose / Coolant Crossover

Package includes:

• 1 x "U" hose
• 2 x Stainless steel clamps

Warnings/Reminders

• Compatibility: Fits GM Chevrolet Pontiac LS, LT series engines with 5/8" and 3/4" heater ports (98-up GEN 3, 4, 5).

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