Silicone Rubber Blue Heater Hose, Inch OD, Inch ID

Description & Features

The FLEXFAB Silicone Rubber Blue Heater Hose is ideal for heavy-duty pressure connections in challenging engine environments. Engineered to perform under continuous operating temperatures from -65deg;F to 350deg;F this hose ensures reliable performance and longevity. The robust build features a nylon fiber reinforcement enhancing durability and resistance to coolant additives.

Designed for specific applications it supports a hose I.D. range of 0.605 to 0.645 inches and an O.D. range of 0.955 to 0.970 inches. The burst pressure capability is up to 250 PSI making it suitable for demanding conditions. The hose is compatible with Oetiker Steplessreg; Ear Pinch Clamps Oetiker Steplessreg; Spring Clamps and Trident #730 S.S. Constant-Torquereg; Clamps providing secure and reliable fittings.

Supplier Part Number: 5526-062X50

Whether used in refrigeration air conditioning or hydraulic brake systems this silicone hose meets rigorous quality standards. Note: Do not use serrated slotted or wire type clamps to avoid potential damage or leaks.

MPN: C1KG20

Specifications

Color
Blue
grp Fitting Attachments
Oetiker Stepless® Ear Pinch Clamp, Oetiker Stepless® Spring Clamp, Trident #730 S.S, Constant-Torque® Clamp
Hose Type
1-Ply Standard Heater Hose
Inside Diameter
5/8 in
Series
5526 Series
Tube Material
Silicone

Product Questions & Answers (1)

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Question by: Earl G on Aug 7, 2025, 9:54 PM
What kind of clamps are supposed to go on this hose? I don't want to mess up the connection using the wrong type.
Answer by: Customer Support on Aug 9, 2025, 7:58 AM
Oetiker Stepless Ear Pinch Clamps, Oetiker Stepless Spring Clamps, and Trident #730 S.S. Constant-Torque Clamps are all compatible with this hose. One thing worth knowing upfront: serrated, slotted, and wire type clamps are not suitable here. Those styles can damage the silicone material and cause leaks over time, so sticking with the approved clamp types keeps the connection solid.

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