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Silicone Rubber Blue Heater Hose, Inch OD, Inch ID

Description & Features

The Silicone Rubber Blue Heater Hose is expertly crafted to endure heavy-duty pressure in extreme engine environments ensuring reliable performance. With a hose I.D. range of 0.855" to 0.905" and an O.D. range of 1.18" to 1.22" it is ideal for applications in air conditioning pressure washing and engine brake systems.

Designed with a continuous operating temperature range from -65deg;F to 350deg;F this hose is resistant to coolant additives and features a robust nylon fiber reinforcement. The recommended fitting attachments include Oetiker Steplessreg; Ear Pinch Clamps and Trident #730 S.S. Constant-Torquereg; Clamps. Avoid using serrated slotted or wire type clamps.

Manufactured by Flexfab the hose is designed for durability and efficiency making it a reliable choice for professionals dealing with hydraulic brake or air brake systems.

MPN: 5526-087X25

Specifications

Burst Pressure 175	Brand Flexfab	Brand Flexfab	Pack Size 12.00	UOM FT	Hose I.D. Range (in) 0.855 / 0.905	Hose O.D. Range (in) 1.18 / 1.22	Supplier Part Number 5526-087X25	Alternate Part Numbers Alternate Part Number 5526-087X25, Alternate Part Number C1KG22, Alternate Part Number FLEXFAB FLX5526-087 HEATER HOSE SILICONE, Alternate Part Number FLX5526-0022D, Alternate Part Number MI-08749313, Alternate Part Number MINO-01591X98004	Product Weight 0.27 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 (3)

Question by: Kurt A on Aug 15, 2025, 3:44 PM

What kind of clamps do I need to use with this hose? Don't wanna mess it up.

Answer by: Customer Support on Aug 17, 2025, 1:17 PM

For fitting attachments, Oetiker Stepless Ear Pinch Clamps and Trident #730 S.S. Constant-Torque Clamps are recommended. You shouldn't use serrated, slotted, or wire-type clamps, though.

Question by: Shane W on Feb 17, 2026, 5:44 PM

what's the temp range on this hose? running it on an engine brake system and need to know if it'll hold up to the heat

Answer by: Customer Support on Feb 19, 2026, 3:13 PM

Rated for continuous use from -65°F up to 350°F, so it handles the kind of heat engine brake systems throw at it without breaking down. The nylon fiber reinforcement adds to that durability, and the silicone construction holds up against coolant additives too. For that application, it's a solid fit.

Question by: Frank T on Jan 11, 2026, 12:11 PM

got a tight spot on a heater line, what size is this hose really on the inside and outside?

Answer by: Customer Support on Jan 12, 2026, 2:25 PM

For fit-up, the inside diameter runs 0.855 to 0.905 inch, and the outside diameter runs 1.18 to 1.22 inch.