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

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Description & Features

The FLEXFAB Silicone Rubber Blue Coolant Hose is expertly designed for demanding environments that require superior heat resistance and durability. Constructed with 4-ply silicone reinforced with polyester fabric it ensures long-lasting performance even at extreme temperatures ranging from -65deg;F to 350deg;F.

This special application hose features a 0.88 inch inner diameter and a 1.27 inch outer diameter making it ideal for refrigeration air conditioning hydraulic brake systems and other industrial uses. The 36 inch length provides ample reach for various configurations meeting or exceeding SAE J20 R1 Class A TMC RP303B Class 1 Grade 1 and most OEM truck manufacturers' specifications.

With a burst pressure of 560 this silicone hose guarantees reliability under high-pressure conditions. It's coated with a specially compounded silicone elastomer delivering exceptional durability and performance.

MPN: 5581-087

Supplier Part Number: 5581-087

Specifications

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

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Product Questions & Answers (2)

Question by: Ross E on Mar 23, 2026, 11:47 AM
trying to replace a coolant line, is this one the 7/8 inch inside size and how long is it?
Answer by: Customer Support on Mar 25, 2026, 10:38 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.
Question by: Earl B on May 6, 2025, 7:00 AM
What's the highest temp this hose can handle without melting or cracking?
Answer by: Customer Support on May 8, 2025, 6:43 AM
This hose is made to withstand constant temperatures from -65°F all the way up to 350°F.