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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

Burst Pressure 250	Brand Flexfab	Brand Flexfab	Pack Size 12.00	UOM FT	Hose I.D. Range (in) 0.605 / 0.645	Hose O.D. Range (in) 0.955 / 0.970	Supplier Part Number 5526-062X50	Alternate Part Numbers Alternate Part Number 5526-062X50, Alternate Part Number C1KG20, Alternate Part Number FLX5526-0014D, Alternate Part Number MI-08749308, Alternate Part Number MINO-01591X98003	Product Weight 0.20 lbs

Similar Products

Model Number	Hose I.D. Range (in)	Hose O.D. Range (in)	Burst Pressure
FLX5526-050 Silicone Rubber Heater Hose	0.480 / 0.520	0.830 / 0.840	250
FLX5526-062 Silicone Rubber Heater Hose	0.605 / 0.645	0.955 / 0.970	250
FLX5526-075 Silicone Rubber Heater Hose	0.730 / 0.770	1.08 / 1.09	200
FLX5526-087 Silicone Rubber Heater Hose	0.855 / 0.905	1.18 / 1.22	175

Product Questions & Answers (1)

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.