Description
The Mishimoto Silicone Coolant Hose Kit (MMHOSE-CIV-12SIRD) is a direct-fit upper and lower radiator hose set engineered specifically for the K24Z7 engine found in the 2012–2015 Honda Civic Si. Molded from multiple layers of silicone with heat-resistant embedded fibers and finished in red, this Performance-grade cooling upgrade is built to replace factory rubber hoses that can soften or fail under sustained heat and pressure during spirited driving or track sessions.
As part of Mishimoto’s Cooling lineup, this silicone coolant hose kit is designed to improve both heat and pressure tolerance versus the factory rubber hoses it replaces, while refreshing the look of your Civic Si’s engine bay. The layered silicone construction is intended to greatly outlast stock rubber hoses, helping keep coolant flowing reliably to the K24Z7 engine. High-quality worm-gear clamps are included for a secure, straightforward installation, and the kit is backed by the Mishimoto Lifetime Warranty for long-term peace of mind.
Vehicle Applications
This is a specific-fit kit designed exclusively for the 2012–2015 Honda Civic Si, covering chassis codes FG4 and FB6, and built around the K24Z7 engine. It is not intended as a universal coolant hose solution — fitment is limited to this Civic Si application and engine code.
Features
- Constructed from multiple layers of silicone with heat-resistant embedded fibers
- Kit includes upper and lower radiator hoses
- Improves heat and pressure tolerance versus factory rubber hoses
- Silicone construction designed to greatly outlast factory rubber hoses
- High-quality worm-gear clamps provided for ease of installation
- Available in black or red hose color
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMHOSE-CIV-12SIRD
- Product Type: Cooling
- Hose Material: Silicone
- Interior Material: Silicone
- Hose Color: Red
- Grade Type: Performance
- Universal or Specific Fit: Specific
- Hose Quantity: (2) Hoses
- Clamps Included: Yes
- Clamp Quantity: (4) Worm Gear Clamps
- Hose Inside Diameter: 1.22 in
- Hose Outside Diameter: 1.61 in
- Hose Lengths: 14.96 in, 16.93 in
- Maximum Temperature Rating: 347°F / 175°C
- Engine Code: K24Z7
- Chassis Codes: FG4, FB6
- Vehicle Applications: 2012–2015 Honda Civic Si
Frequently Asked Questions
What vehicles does this Mishimoto silicone coolant hose kit fit?
It is a specific-fit kit designed for the 2012–2015 Honda Civic Si, chassis codes FG4 and FB6, equipped with the K24Z7 engine.
What is included in the kit?
The kit includes (2) silicone hoses and (4) worm gear clamps, along with the Mishimoto Lifetime Warranty.
What material are the hoses made from?
The hoses are constructed from multiple layers of silicone with heat-resistant embedded fibers, with a silicone interior.
What is the maximum temperature rating?
The hoses are rated to a maximum temperature of 347°F (175°C).
What color options are available?
This hose kit is available in black or red; this listing is for the red version.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
