Best Gm Car Bypass Hoses in 2026

ID: 3/8 inch, OD: 5/8 inch, 6 AN NBR liner hose fuel injection 5 feet

Use hose barbs and clamps, transfer of petroleum products fuel lines for small engines

Working Pressure 2Mpa. Burst Pressure 6Mpa, Handles temperature ranges of -40 to +275 degrees F

LS LT Heater Core Bypass Delete Hose With Clamps Coolant Crossover

Compatible with Chevrolet GM Pontiac LS LSX LS1 LS2 LS3 LS6 LS7 LQ4 LQ9 LT1 LT4

Hose Ends — 5/8" and 3/4"

Comes with a protective sleeve to help duplicate GM OE designs for proper fit and function

Installs without buckling, bending out of shape, or straining at the connection for easy installation

Has all the quality features of a regular coolant hose for interchangeable use

Fit: For Chevrolet for Pontiac

Fit: For LT1 for LT4 for LY2 for LY5 for LY6 for LQ4 for LQ9 for LS1 for LS2 for LS3 for LS6 for LS7 for LSX for LH6 for LH8 for LH9 for LM4 for LM7 for LMG for LC8 for LC9 for L20 for L33 for L59 for L76 for L77 for L92 for L94 for L96 for L98 for L99 for LZ1 for LR4 for LFA

Hose Ends: 5/8" and 3/4" Used to loop the heater hose outlets of your for LT engine water pump.

Genuine Toyota 16261-20010 Water By-Pass Hose

Specifically-engineered materials resist collapse under vacuum

Engineered to resist electrochemical degradation, the leading cause of hose failure

Pre-shaped to fit and to ensure perfectly sealed conditions

GM-recommended replacement part for your GM vehicle’s original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured to GM OE specification for fit, form, and function

🎯High-quality and safe material: Short water hose(apply for patent)--high-strength PET, resistant to low temperature, high temperature and anti-aging; inner layer --PU spiral tube design, 360-degree bending without obstruction, non-toxic, odorless, good hygiene and safety, aviation aluminum alloy connector, will not rust, leak or crack.Will not corrode.

🎯Function: PU spiral hose protection device, wear-resistant, high hardness and elasticity, connect the hose and the faucet to prevent folding, keep the water even, effectively prevent the garden hose from kinking and leakage, and extend the service life.

🎯Easy to use and flexible: Easily connect and disconnect hoses and faucets up to 3/4 inch. This garden hose extension is lightweight and highly portable, it can easily bypass woods, bushes and other obstacles, and is extremely flexible.

Specifically-engineered materials resist collapse under vacuum

Engineered to resist electrochemical degradation, the leading cause of hose failure

Pre-shaped to fit and to ensure perfectly sealed conditions

【Lightweight and Flexible】Made of innovative rubber and polymer mixed materials, our water hose 50 ft is 30% lighter than traditional rubber hoses and super flexible to use

【Leak Proof and Sturdy】The 3-layer reinforced structure rubber hose has extreme toughness, which can easily bypass trees, grass and walls

【All-Weather Use】Temperature Range：-18.4℉ to 140℉. Extreme weather is also appliable. Burst pressure 600 PSI / work pressure 200 PSI. There is no problem to stand up higher water pressure than other heavy duty water hoses and work perfectly

LS / LT Swap (Gen III, IV, V)

5/8" and 3/4" Hose Ends

2 Clamps included

Compatible with all GM LS series engines

Includes: 2 orings, 2 bolts, 2 coolant ports, 1 PTFE TAPE，and 1 steel braided hose .

Can be installed on the front or rear of the cylinder heads

🎯High-quality and safe material: Short water hose(apply for patent) outer layer-High-strength PET, resistant to low temperature, high temperature and anti-aging; inner layer-PU spiral tube design, 360-degree bending without obstruction, non-toxic, odorless, good hygiene and safety, aviation aluminum alloy connector, will not rust, leak or crack.

🎯Function: PU spiral hose protection device, wear-resistant, high hardness and elasticity, connect the hose and the faucet to prevent folding, keep the water even, effectively prevent the garden hose from kinking and leakage, and extend the service life.

🎯Easy to use and flexible: Easily connect and disconnect hoses and faucets up to 3/4 inch. This garden hose extension is lightweight and highly portable, it can easily bypass woods, bushes and other obstacles, and is extremely flexible.

Leading Manufacturer Of High-Quality Products

International Renown For Our Diverse Range Of Award-Winning Products

Designed With The User In Mind

13251447 Inlet Hose also know as 13251447 Coolant Hose, New coolant bypass hose 13251447 - OEM Radiator Upper Inlet Coolant Bypass Hose.

Inlet Hose Fits for-Chevrolet Cruze 2011-2016. Perfect aftermarket replacement parts works with Chevy Cruze 1.4L .

Part Number: 13251447 ,13408385； Refer to the part numbers of the cooling water outlet hose used together: 25193922, 902846, 902-846, 1511105, 55565334, 1338030, 15-11105

Extremely Durable &No More Leaks: The 2023 upgraded garden hose is made of the 3-layer reinforced structure rubber, has extreme toughness, which can easily bypass trees, grass and walls. 3/4 inches 100% solid brass connector to prevent breakage and leakage, extremely functional, lightweight and flexible, durable. The hose will never kink, twist, leak, burst or get tangled up while in use.

Anti-Kink Technology: No more stopping to fix the kinks, coils easily and lays flat with zero memory! This 5/8 "standard inner diameter, non-twist innovative rubber and polymer mixed materials offers unobstructed water flow, helps you to complete watering, car washing, yard washing and other watering work easily.

3、Durable Construction&Extremely Flexible: Each end of hose features 3/4 inch 100% solid brass connector with stainless steel strain reliefs; UV Stabilized: For a long life. The water hose is 30% lighter than traditional PVC hoses and super flexible to use.Temperature Range：-40℉ to 150℉. Extreme weather is also applicable.200 feet long hose delivers up to 200 PSI for maximum working pressure, 600 PSI bursting pressure.

Universality: Vacuum hose kit fit to all vehicle makes and models

Engine bay dress up kit includes: 3 pieces of Silicone Vacuum Hose: ID 0.12" (3mm) x 10FT (3 Meter) + ID 0.16" (4mm) x 10FT (3 Meter) + ID 0.31" (8mm) x 3FT (1 Meter)

And vacuum hose kit includes: Zip Tie 35pcs + Spring Clamp Kit 15pcs+ Plastic T-Joiner 3pcs

Fits: For Chevrolet for Pontiac (Gen III, IV, V) for LT1 for LT4 for LY2 for LY5 for LY6 for LQ4 for LQ9 for LS1 for LS2 for LS3 for LS6 for LS7 for LSX for LH6 for LH8 for LH9 for LM4 for LM7 for LMG for LC8 for LC9 for L20 for L33 for L59 for L76 for L77 for L92 for L94 for L96 for L98 for L99 for LZ1 for LR4 for LFA , engines from 98 and Later, 98 - Up.

Hose Ends: 5/8" and 3/4" Used to loop the heater hose outlets of your for LT engine water pump.

Package List: 1 × black rubber hose, 2 × Clamp

Application: For GM Chevrolet Pontiac all LS or LT series Gen III IV V LS LS1 LS2 LS3 LS6 LS7 LSX LH6 LH8 LH9 LT1 LT4 LY2 LY5 LY6 LQ4 LQ9 LM4 LM7 LMG LC8 LC9 L20 L33 L59 L76 L77 L92 L94 L96 L98 L99 LZ1 LR4 LFA engines from 98 and Later, 98 - Up.

Size: HOSE ENDS-5/8" and 3/4"

Function: This LS Heater Core Bypass Delete Hose is designed to provide the high strength and resistance to loop the heater hose outlets of the LS/LT engine water pump.

OEM product

Fit Type: Vehicle Specific

Package Weight: 0.100 pounds

Extremely Durable &No More Leaks:The 2023 upgraded garden hose is made of the 3-layer reinforced structure rubber,has extreme toughness,which can easily bypass trees, grass and walls. 3/4 inches 100% solid brass connector to prevent breakage and leakage, extremely functional, lightweight and flexible, durable. The hose will never kink, twist, leak, burst or get tangled up while in use.

Anti-Kink Technology:No more stopping to fix the kinks,coils easily and lays flat with zero memory! This 5/8 "standard inner diameter, non-twist innovative rubber and polymer mixed materials offers unobstructed water flow, helps you to complete watering,car washing, yard washing and other watering work easily.

Durable Construction&Extremely Flexible: Each end of hose features 3/4 inch 100% solid brass connector with stainless steel strain reliefs;UV Stabilized: For a long life. The water hose is 30% lighter than traditional PVC hoses and super flexible to use.Temperature Range-40℉ to 150℉. Extreme weather is also applicable.100 feet long hose delivers up to 200 PSI for maximum working pressure,600 PSI bursting pressure.

This kit installs in minutes without making any permanent mods to your vehicle. NO HOSE CUTTING REQUIRED! With this kit you can control flow to your heater core with a turn of the handle!

Easy 5 Minute Install. Locate your heater core inlet hose. There will be two hoses coming from the firewall. One is the heater core "in" and the other is the "out". This kit MUST be installed on the "IN" hose. Follow the hoses from the firewall and install this kit on the other end. Remove the vehicle heater hose from the port on the engine and install the supplied hose, valve, and clamps. This kit can be installed on either end of the heater IN hose. SEE PHOTOS TO THE LEFT.

This kit is 100% safe for your vehicle and won't cause any damage or Check Engine Lights. This kit is comprised of PREMIUM components that WILL NOT fail.

【Direct Replacement】If your heater core is failing or leaking, it is recommended that you replace it promptly, and our heater bypass kit offers an affordable alternative that will save you a lot of time and money.

【Applicable Models】Includes interchangeable 5/8" and 3/4" hose fittings to fit the most common heater hoses.

【High Quality】Material upgrade, made of high quality aluminum, more durable and reliable, factory tested several times before leaving the factory, meet or exceed OEM standards.

Direct replacement - this engine coolant bypass hose is designed to match the fit and function of the original hose on specified vehicles

Restores functionality - reliable replacement for an original hose that has failed due to heat and fatigue

Durable construction - this part is made from quality materials to ensure reliable performance and long service life

OEM Parts and Accessories

Package Dimensions: 2.36 H x 11.81 L x 5.12 W (inches)

Package Weight: 1.0 pounds

Extremely Durable &No More Leaks: The 2023 upgraded garden hose is made of the 3-layer reinforced structure rubber, has extreme toughness, which can easily bypass trees, grass and walls. 3/4 inches 100% solid brass connector to prevent breakage and leakage, extremely functional, lightweight and flexible, durable. The hose will never kink, twist, leak, burst or get tangled up while in use.

Anti-Kink Technology: No more stopping to fix the kinks, coils easily and lays flat with zero memory! This 5/8 "standard inner diameter, non-twist innovative rubber and polymer mixed materials offers unobstructed water flow, helps you to complete watering, car washing, yard washing and other watering work easily.

Durable Construction&Extremely Flexible: Each end of hose features 3/4 inch 100% solid brass connector with stainless steel strain reliefs; UV Stabilized: For a long life. The water hose is 30% lighter than traditional PVC hoses and super flexible to use.Temperature Range：-40℉ to 150℉. Extreme weather is also applicable.100 feet long hose delivers up to 200 PSI for maximum working pressure, 600 PSI bursting pressure.

【Replacement Part Number】 - Coolant Bypass Hose Inlet Hose: 13251447, 13408385. Radiator Outlet Hose: 13251435. Engine Radiator Coolant Inlet Hose: 13291779, 1337847, 95031564, 95181632. Heater Outlet Hose: 94543097.PCV Valve Tubing Hose with Bypass Valve Tube: 25193343, 55568267. Engine Oil Cooler Coolant Inlet Hose: 55596898. Before ordering, please confirm compatibility and weather are suitable for your vehicle!

【Compatible Vehicle】 - This engine hose set compatible with 2011-2016 Chevy Cruze 1.4L, 2016 Chevy Cruze Limited 1.4L.

【High Quality】 - Our engine hose set made of high-performance material that are completely corrosion-resistant and dust-proof, wear-resistant, heat-resistant, strong impact resistance, and good overall performance. It’s equivalent parts fully comply with the original manufacturer's specifications and functions.