Mishimoto MMHOSE-CIV-12SIRD Silicone Radiator Hose Kit Red Honda Civic Si 2012-2015

The Mishimoto MMHOSE-CIV-12SIRD is a premium red silicone radiator hose kit designed as a direct OEM replacement upgrade for the 2012–2015 Honda Civic Si with the K24Z7 engine. This kit replaces factory rubber coolant hoses with high-performance silicone construction engineered to deliver superior cooling efficiency and long-term durability under demanding driving conditions.

Mishimoto silicone radiator hose kits feature a dual-layer construction combining high-grade silicone with heat-resistant embedded fibers, providing outstanding heat reduction and increased pressure tolerance well beyond what stock rubber hoses can handle. The smooth silicone interior walls minimize flow restriction, promoting consistent and efficient coolant circulation to keep operating temperatures in check.

Key Features:

• Multi-layer silicone construction — resists temperatures up to 330°F without cracking, hardening, or degrading like OEM rubber hoses
• Heat-resistant embedded fibers — boost structural integrity and resilience under high-temperature operating conditions
• Smooth interior walls — reduce coolant flow restriction for maximum cooling efficiency
• Direct OEM fit — precision-molded for the K24Z7 engine for a straightforward, clamp-and-go installation
• Bold red finish — enhances underhood aesthetics and complements factory or aftermarket engine bay components
• Compatible with factory and Mishimoto radiators — works seamlessly with OEM and performance cooling system components
• Mishimoto Lifetime Warranty — backed by Mishimoto's industry-leading limited lifetime warranty

The MMHOSE-CIV-12SIRD is an ideal upgrade for Civic Si owners looking to improve cooling system reliability, whether for daily driving, autocross, or track use. Upgrade to Mishimoto silicone and eliminate the risk of hose failure caused by heat-related rubber deterioration.