Accueil » Heater Core Bypass Hose Thickened EPDM Rubber For Chevrolet LS Engines

Heater Core Bypass Hose Thickened EPDM Rubber For Chevrolet LS Engines

Unité de gestion de stock: 1005010007964187-black
Color
€18,60
-38% €29,76 €18,60

Equip your GM Chevy LS powertrain with a durable Heater Core Bypass Hose crafted from thickened EPDM rubber. This custom molded U-hose is designed to fit LS water pumps and loop the heater hose lines, providing a reliable bypass path when the heater core is removed or during service. Built for LS and LT series engines from 1998 onward (Gen 3, 4, 5), it accommodates 5/8" and 3/4" heater supply/return ports for secure, leak-free connections. The thickened EPDM formulation resists oil, coolant, and fuel exposure while remaining easy to clean, maintaining performance under heat and vibration. Originating from Mainland China, this hose is designed for robust, long-lasting operation in demanding engine environments.

Benefits & Tips

  • Practical bypass solution during heater core maintenance: bypass the heater circuit to diagnose cooling flow issues without removing the entire heater core.
  • Precise compatibility with LS/LT engines: accommodates 5/8" and 3/4" ports to minimize the need for adapters and reduce leaks.
  • Easy installation with included clamps: the kit provides stainless steel clamps for secure, leak-free sealing and a tidy install.

Product specifications

  • Material: Thickened EPDM rubber
  • Finish: Oil, coolant and fuel-resistant
  • Type: Heater Core Bypass Hose / Coolant Crossover
  • Application: GM Chevrolet Pontiac LS, LT series 98-up; LS LT GEN 3-5 engines with 5/8" and 3/4" heater ports
  • Hose ends ID: One end 5/8", the other end 3/4"
  • Origin: Mainland China

Package includes:

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

Warnings/Reminders

  • Always ensure the engine is completely cool before inspecting or replacing hoses.
  • Verify port sizes and tighten clamps securely to prevent leaks.
  • Inspect the hose for signs of wear or cracking; replace if damaged.

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