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Silicone Rubber Blue Coolant Hose, 2.89 Inch OD, 2.50 Inch ID, 36 Inch Long

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Description & Features

The Silicone Rubber Blue Coolant Hose, 2.89 Inch OD, 2.50 Inch ID, 36 Inch Long, is specifically engineered for a range of industrial applications, including hydraulic brake systems, air brake systems, and engine cooling.

Constructed with a 4-ply silicone reinforced by polyester fabric, this hose offers exceptional durability and reliability. The hose is coated with a specially compounded silicone elastomer, ensuring a long lifecycle even under demanding conditions.

The continuous operating temperature ranges from -65deg;F to 350deg;F, making it ideal for use in both extreme cold and high-heat environments. It meets or exceeds the requirements of SAE J20 R1 Class A, TMC RP303B Class 1 Grade 1, as well as most OEM truck manufacturers' specifications.

This 36-inch long hose boasts a burst pressure rating of 300, providing robust pressure handling capabilities. With an inside diameter of 2.5 inches and an outside diameter of 2.89 inches, it fits seamlessly into existing systems requiring these specific dimensions.

MPN: 5581-250

Supplier Part Number: 5581-250

Specifications

Burst Pressure
300
Brand
Flexfab
Brand
Flexfab
Pack Size
36.00
UOM
LN3
Hose I.D.
2.50
Hose O.D.
2.89
Length
36
Supplier Part Number
5581-250
Alternate Part Numbers
Alternate Part Number 5581-250, Alternate Part Number C1KG59, Alternate Part Number MI-08749342, Alternate Part Number MINO-01591X98016
Product Weight
4.28 lbs

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Product Questions & Answers (3)

Question by: Pete B on Jul 10, 2025, 9:22 PM
What kinda burst pressure we talkin' on this hose?
Answer by: Customer Support on Jul 12, 2025, 9:16 PM
This silicone hose is rated to handle burst pressures up to 300 PSI.
Question by: Keith M on Jan 21, 2026, 7:52 AM
got a tight spot on a coolant run. what are the exact sizes on this blue silicone hose
Answer by: Customer Support on Jan 23, 2026, 6:06 AM
Size-wise, it is 2.50 inch inside diameter, 2.89 inch outside diameter, and it comes 36 inches long.
Question by: Rhonda M on Sep 19, 2025, 6:49 AM
What kind of pressure can this hose handle before it bursts?
Answer by: Customer Support on Sep 21, 2025, 8:53 AM
This hose is built to withstand a burst pressure of 300 psi, offering robust performance for demanding applications.