Maruha Silicon Heater Hose Set · NA Miata 1990–1997
Maruha's silicone heater hose set for all NA Miatas. The heater hoses on a 25–30 year old NA are a known failure point — cracked, collapsed, or leaking at the fittings. Silicone eliminates these failure modes and maintains correct coolant flow to the heater core through all operating conditions.
Specifications:

High-grade silicone — superior heat resistance and longevity vs. OEM rubber
Direct replacement for all NA heater hose routing
Includes all required clamps
Available in Maruha blue

Fitment: NA Miata MX-5 1990–1997 · NA6 and NA8 · All variants.
Made in Japan. Authorized Maruha import by Chikara Motorsports — North America's only official Maruha dealer.