Mishimoto LS Heater Core Bypass Hose Black

SKU: MMHOSE-LSHB-BK | UPC: 840197711743

Mishimoto LS Heater Core Bypass Hose Black for GM LS V8 (1997-2017 Corvette Camaro CTS-V)

Perfect for LS engine swaps or race cars without a heater core, the Mishimoto Silicone GM LS V8 Heater Core Bypass Hose Black delivers a clean, reliable bypass solution. This hose fits high-performance GM LS-powered vehicles like Chevrolet Camaro SS, Corvette Z06, and Cadillac CTS-V. Made from 5-layer silicone, it tapers precisely from 3/4-inch to 5/8-inch to match water pump ports, keeping coolant flowing for proper thermostat function and avoiding overheating.

Key Features

• 5-Layer Silicone Construction: Handles extreme heat up to 350F and high pressure for durable performance in demanding LS builds
• Precision Taper Design: 3/4-inch to 5/8-inch inner diameter fits directly to LS water pump heater inlet and outlet ports without adapters
• Coolant Flow Maintenance: Bypasses heater core while allowing circulation to support thermostat operation and prevent hot spots
• Sleek Black Finish: Matches modern engine bays for a professional look on street or track vehicles
• Mishimoto Lifetime Warranty: Covers defects in materials and craftsmanship for peace of mind

Product Notes

• Recommended for LS swaps into non-GM platforms or race cars deleting cabin heat
• Use instead of port blockers to maintain full coolant system efficiency
• Length approximately 8 inches for straightforward routing

Installation Notes

• Professional installation recommended.
• Slide over water pump heater ports and secure with included stainless steel clamps
• Compatible with all GM Gen III/IV LS engines including LS1 LS2 LS3 LS7 LSA LSX

This Part Fits

Year	Make	Model	Submodel
2008-2009	Buick	LaCrosse	Super
2006-2007,2009-2015	Cadillac	CTS	V
2010-2015	Chevrolet	Camaro	SS
2014-2015	Chevrolet	Camaro	Z/28
1998-2002	Chevrolet	Camaro	Z28
1998-2002	Chevrolet	Camaro	Z28 SS
2012-2015	Chevrolet	Camaro	ZL1
2013	Chevrolet	Corvette	427
2008	Chevrolet	Corvette	427 Limited Edition Z06
2003	Chevrolet	Corvette	50th Anniversary Edition
2003	Chevrolet	Corvette	50th Anniversary Edition Pace Car
1997-2013	Chevrolet	Corvette	Base
2010-2013	Chevrolet	Corvette	Grand Sport
1998	Chevrolet	Corvette	Indianapolis 500 Pace Car
2006-2013	Chevrolet	Corvette	Z06
2011	Chevrolet	Corvette	Z06 Carbon
2009-2013	Chevrolet	Corvette	ZR1
2006-2009	Chevrolet	Impala	SS
2006-2007	Chevrolet	Monte Carlo	SS
2014-2017	Chevrolet	SS	Base
2005-2006	Chevrolet	SSR	Base
2006-2009	Chevrolet	Trailblazer	SS
1998-2002	Pontiac	Firebird	Formula
1998-2002	Pontiac	Firebird	Trans Am
2009	Pontiac	G8	GXP
2005-2008	Pontiac	Grand Prix	GXP
2004-2006	Pontiac	GTO	Base
2008-2009	Saab	9-7x	Aero

Why Choose Mishimoto?

• Trusted brand for cooling components in LS engines worldwide
• Premium 5-layer silicone resists cracking and bursting over time
• Engineered taper and fitment tested for GM LS water pumps

Frequently Asked Questions

• Q: Does this hose fit LS engines in swapped vehicles like Fox Body Mustang or drift cars?
  A: Yes, it connects directly to any GM Gen III or IV LS series water pump heater ports regardless of chassis
• Q: What is the hose material and temperature rating?
  A: 5-layer reinforced black silicone rated to 350 degrees F continuous with burst pressure over 100 PSI
• Q: What does the warranty cover and how do I claim it?
  A: Mishimoto Lifetime Warranty covers manufacturing defects. contact Mishimoto with proof of purchase for replacement

Shipping & Handling

• Method: UPS Ground
• Availability: In stock – ships same or next business day
• Packaging: Protective box 9 x 6 x 1 inches
• Weight: 0.3 lbs