Flexfab 5780-125X12, 1.25" x 12 ft, High Temp Red Silicone Meta-Aramid Coolant Hose, 32mm
by Flexfab
Save 20%
Original price
$ 447.39
Original price
$ 447.39
-
Original price
$ 447.39
Original price
$ 447.39
Current price
$ 357.89
$ 357.89
-
$ 357.89
Current price
$ 357.89
Run coolant where standard silicone gives out with the Flexfab 5780-125X12 high-temperature meta-aramid hose. Its thicker 4-ply wall and meta-aramid reinforcement push the temperature ceiling to a remarkable +500°F while handling up to 150 PSI working pressure — built for the hottest, most hostile cooling systems across diesel, automotive, marine, agricultural, and industrial engines.
Why this Flexfab high-temp coolant hose
- −65°F to +500°F range — far beyond standard 350°F coolant hose, which means it survives next to turbos, manifolds, and EGR routing.
- Silicone + meta-aramid, 4-ply — the aramid reinforcement adds heat and pressure endurance ordinary polyester can’t match.
- 500 PSI actual burst / 150 PSI working — a wide safety margin for high-pressure cooling circuits.
- Meets or exceeds SAE J20 R1 H.T. — documented high-temperature spec compliance.
- 1.25" (32mm) ID × 1.64" (42mm) OD, 0.17"–0.22" wall — thicker wall for pressure endurance.
Supplied as a 12-foot stick, this red hose resists hardening, cracking, aging, and chemical attack including coolant additives.
Backed by hpcouplers’ fast shipping and easy returns — order with confidence from a trusted industrial hose and coupler supplier.
- FlexFab Series: 5780
- Part Number: 5780-125X12
- Inside Diameter (ID): 1.25" (32mm)
- Outside Diameter (OD): 1.64" (42mm)
- Hose Length: 12 feet
- Wall Thickness: 0.17" / 0.22"
- Working Pressure - PSI: 150
- Actual Burst Pressure - PSI: 500
- Standard: SAE J20 R1 H.T.
- Extreme temp range: -65F to +500F
- Construction: Red Silicone hose with Meta-Aramid 4-ply reinforcement