Silicone Rubber Blue Coolant Hose, 1.27 Inch OD, 0.88 Inch ID, 36 Inch Long

Burst Pressure 560	Brand Flexfab	Brand Flexfab	Pack Size 36.00	UOM LN3	Hose I.D. 0.88	Hose O.D. 1.27	Length 36	Supplier Part Number 5581-087	Alternate Part Numbers Alternate Part Number 5581-087, Alternate Part Number C1KL93, Alternate Part Number MI-08749320, Alternate Part Number MINO-01591X98006	Product Weight 2.25 lbs

Product Questions & Answers

trying to replace a coolant line, is this one the 7/8 inch inside size and how long is it?

Question by: Ross E on Mar 23, 2026, 11:47 AM

The inner diameter is 0.88 inch (7/8 inch) and the hose length is 36 inches. The outer diameter is 1.27 inches.

Answer by: Customer Support on Mar 25, 2026, 10:38 AM

What's the highest temp this hose can handle without melting or cracking?

Question by: Earl B on May 6, 2025, 7:00 AM

This hose is made to withstand constant temperatures from -65°F all the way up to 350°F.

Answer by: Customer Support on May 8, 2025, 6:43 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