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

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

Product Questions & Answers

What kinda burst pressure we talkin' on this hose?

Question by: Pete B on Jul 10, 2025, 9:22 PM

This silicone hose is rated to handle burst pressures up to 300 PSI.

Answer by: Customer Support on Jul 12, 2025, 9:16 PM

got a tight spot on a coolant run. what are the exact sizes on this blue silicone hose

Question by: Keith M on Jan 21, 2026, 7:52 AM

Size-wise, it is 2.50 inch inside diameter, 2.89 inch outside diameter, and it comes 36 inches long.

Answer by: Customer Support on Jan 23, 2026, 6:06 AM

What kind of pressure can this hose handle before it bursts?

Question by: Rhonda M on Sep 19, 2025, 6:49 AM

This hose is built to withstand a burst pressure of 300 psi, offering robust performance for demanding applications.

Answer by: Customer Support on Sep 21, 2025, 8:53 AM

Model Number	Hose I.D.	Hose O.D.	Burst Pressure	Length
FLX5581-125	1.25	1.64	500	36
FLX5581-138	1.38	1.77	475	36
FLX5581-200	2	2.39	400	36
FLX5581-250	2.5	2.89	300	36
FLX5581-087	0.88	1.27	560	36
FLX5581-100	1	1.39	550	36
FLX5581-150	1.5	1.89	450	36
FLX5581-175	1.75	2.14	400	36
FLX5581-187	1.88	2.27	400	36
FLX5581-225	2.25	2.64	350	36
FLX5581-238	2.38	2.77	325	36
FLX5581-275	2.75	3.14	275	36
FLX5581-287	2.88	3.27	250	36
FLX5581-300	3	3.39	250	36
FLX5581-350	3.5	3.89	200	36
FLX5581-400	4	4.39	150	36
FLX5581-450	4.5	4.89	150	36
FLX5581-500	5	5.39	125	36