• Mishimoto LS Heater Core Bypass Hose Black
  • Mishimoto LS Heater Core Bypass Hose Black
  • Mishimoto LS Heater Core Bypass Hose Black
  • Mishimoto LS Heater Core Bypass Hose Black
  • Mishimoto LS Heater Core Bypass Hose Black
  • Mishimoto LS Heater Core Bypass Hose Black
  • Mishimoto LS Heater Core Bypass Hose Black
  • Mishimoto LS Heater Core Bypass Hose Black
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Mishimoto LS Heater Core Bypass Hose | GM V8 (85-17) (MMHOSE-LSHB-BK)

Mishimoto LS Heater Core Bypass Hose | GM V8 (85-17) (MMHOSE-LSHB-BK)

MMHOSE-LSHB-BK

Out of stock

$30.07 USD
$35.00 USD $30.07 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The Mishimoto LS Heater Core Bypass Hose is a high-quality silicone hose designed specifically for LS engine swaps and performance builds. Constructed from durable, heat and pressure resistant 5-layer silicone, this bypass hose provides a reliable solution for bypassing the heater core in LS V8 applications. The hose tapers from 3/4" to 5/8" to match the inlet and outlet ports on the water pump, ensuring a secure fit and optimal flow. Its black finish offers a clean, professional appearance, and the material's flexibility and resistance to heat and pressure make it ideal for demanding racing or street use. This bypass hose simplifies installation and enhances engine bay aesthetics while maintaining performance integrity.

Designed for use with GM LS V8 engines, this bypass hose is suitable for various applications, including LS swaps and race car builds where the heater core is not needed. It is compatible with vehicles that have water pump ports matching the 3/4" and 5/8" sizes, making it a versatile upgrade for custom or modified setups. The hose is a direct replacement for factory bypass lines, providing a secure, leak-free connection. Whether for street, track, or off-road use, this Mishimoto bypass hose ensures a durable, efficient solution for managing coolant flow in high-performance LS engine configurations.

Overview

Mishimoto LS Heater Core Bypass Hose Black

Fitment Summary

This bypass hose is designed specifically for LS engine swaps and LS-powered racecars, providing a seamless solution for bypassing the heater core in GM LS V8 applications.

Part #: MMHOSE-LSHB-BK

Overview

The Mishimoto LS Heater Core Bypass Hose is an essential upgrade for anyone performing an LS swap or building an LS-powered racecar. When removing or bypassing the heater core, a reliable and durable bypass hose is crucial to maintain proper coolant flow and prevent leaks. Crafted from high-quality silicone, this bypass hose offers excellent resistance to heat, pressure, and aging, ensuring long-lasting performance under demanding conditions. Its sleek black finish not only enhances the engine bay's appearance but also provides a clean, professional look.

This product is ideal for automotive enthusiasts, racers, and DIY mechanics seeking a straightforward, high-quality solution for coolant system modifications during engine swaps or custom builds. Its tapered design from 3/4" to 5/8" ensures a perfect fit with the water pump ports, simplifying installation and ensuring a secure, leak-free connection. Whether you're upgrading your vehicle for performance or restoring it for reliability, this bypass hose helps support your goals with a durable, functional component designed to withstand the rigors of high-performance applications.

Key Features

  • Constructed from heat and pressure resistant 5-layer silicone for durability
  • Tapers from 3/4" to 5/8" to fit standard water pump ports
  • Black silicone finish for a sleek, OEM-like appearance
  • Designed specifically for LS engine swaps and race applications
  • Resistant to cracking, splitting, and aging under high temperatures
  • Easy to install with a secure, leak-proof fit

Construction & Design

The hose features a multi-layer silicone construction that provides excellent flexibility and resilience against extreme engine bay temperatures. Its tapered design ensures compatibility with standard LS water pump ports, making installation straightforward and reliable. The black finish adds a professional aesthetic, complementing any engine bay setup.

Installation & Fitment

Designed for direct replacement in LS engine coolant systems, this bypass hose installs easily with minimal tools. It fits standard GM LS water pump ports, providing a secure and leak-free connection. Proper installation ensures optimal coolant flow and system integrity during engine modifications or upgrades.

Ideal For

Perfect for automotive enthusiasts performing LS engine swaps, racecar builders, and anyone looking to simplify their coolant system modifications while maintaining high durability and performance standards.

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