Best Hpcouplers in 2026

Flexfab 5526-062X50

Inside Diameter (ID): 0.63" (16mm) ,Outside Diameter (OD): 0.96" (24mm)

-65°F (-54°C) to +350°F (+177°C)

Flexfab 5526-100X50

Inside Diameter (ID): 1.00" (25mm) ,Outside Diameter (OD): 1.33" (34mm)

-65°F (-54°C) to +350°F (+177°C)

Flexfab 5526-062X400

Inside Diameter (ID): 0.63" (16mm) ,Outside Diameter (OD): 0.96" (24mm)

-65°F (-54°C) to +350°F (+177°C)

Flexfab 5526-075 (60 ft Length)

Inside Diameter (ID): 0.75" (19mm)

Outside Diameter (OD): 1.08" (27mm)

Upgraded replacement - these heater hose elbow connectors are made of aluminum instead of brittle plastic

Smart solution - reduces the likelihood of the same part failing again the same way

Complete set - includes both upper and lower elbow with O-ring seal

Upgraded material - this replacement engine heater hose assembly features aluminum Y-connectors for added durability

Application specific - designed to match the original fit and function of heater hoses on certain vehicle years, makes and models

Complete replacement - hoses come with necessary clamps for easy installation

Upgraded material - this replacement engine heater hose assembly features aluminum Y-connectors for added durability

Application specific - designed to match the original fit and function of heater hoses on certain vehicle years, makes and models

Complete replacement - hoses come with necessary clamps for easy installation

Good resistance to high temperatures for extended periods of time, which prolongs service life

Convenient 6-ft. lengths in self-service, reusable, recyclable package that can be displayed on pegboard

Meets SAE 20R3 Standard Wall Class D-2 requirements

Upgraded material - this replacement engine heater hose assembly features aluminum Y-connectors for added durability

Application specific - designed to match the original fit and function of heater hoses on certain vehicle years, makes and models

Complete replacement - hoses come with necessary clamps for easy installation

Good resistance to high temperatures for extended periods of time, which prolongs service life

Convenient 6-ft. lengths in self-service, reusable, recyclable package that can be displayed on pegboard

Meets SAE 20R3 Standard Wall Class D-2 requirements

Country of Origin: United States

Fits multiple makes and models (contact seller with your vehicle for fitment compatibility information)

Part number: KH-576

5 Piece Bundle Including One 6 Foot Piece of 3/4 Inch ID EPDM Red Rubber Heater Hose Made in the USA and 4 #12 Breeze Clamps

Heater Hose is Flexible and can be used for Cars, Trucks, Tractors, or Small Engines

Heater Hose is Nitrile Tube Construction with 2 Spiral Polyester Reinforcement and PVC/Nitrile Blend Cover

Max Temperature Rating: 350F. Max Working Pressure: 85 psi. Bend Radius: 1"

Meet and exceed SAEJ20 industry standards, great for marine and industrial use, custom turbo or radiator cooling system.

Silicone hose is NOT compatible with fuel or oil; however, it is compatible with water and anti-freeze such as coolant.

This heater hose is for LS water pump and loops the heater hose lines, which can prevent and fix the coolant leaking and engine overheating problem.

One end is 5/8 and the other end is 3/4

Replacement For LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LS2 LH6 L92 L76 LY2 LY5 LY6 LC9 LFA LH8 LMG LS3 L98 L9H L20 L94 LZ1 L99 L96 LC8 L77

Has all the quality features of Gates molded coolant hose and similar to OEM specifications

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

EPDM tube, synthetic fiber knit reinforcement, EPDM cover

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

Upgraded material - this replacement engine heater hose assembly features aluminum Y-connectors for added durability

Application specific - designed to match the original fit and function of heater hoses on certain vehicle years, makes and models

Complete replacement - hoses come with necessary clamps for easy installation

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.

Has all the quality features of Gates molded coolant hose and similar to OEM specifications

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

EPDM tube, synthetic fiber knit reinforcement, EPDM cover

Carton packed or on reels for customer convenience.Material:Rubber

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

Professional, premium aftermarket replacement

These type of fittings are close to the firewall behind the engine and are difficult to turn with very little to hang onto to rotate

They only get worse over time with each heat cycle and deposit buildup

Tool engages the tabs and provides a better grip on the fitting