Description
Temporarily Out of Stock Estimated restock: November 14, 2026. You can order now to reserve yours; it ships as soon as it arrives.
Expansion Tank w/ Sensor direct-fit replacement engineered to meet or exceed OE specifications.
Fits: Mazda RX-8 04-11
Precision-molded to OE dimensions to ensure compatibility with original sensors and connections
Quality materials resist engine heat and harsh cooling system environment
Factory pressure-tested
Replaces OE #: N3H1-15-350C, N3H1-15-351G
About Autotecnica
Auto Obsession is proud to offer products from Autotecnica. Autotecnica supplies high-quality aftermarket replacement parts for a wide range of Asian and North American cars and trucks braking, cooling, driveline, electrical, engine, fuel, HVAC, steering, and suspension. Manufactured to ISO/TS 16949 quality standards and built to meet OEM specifications, Autotecnica is a smart, cost-effective alternative to expensive Genuine components.
Warranty: 24 Month Unlimited Mileage Warranty. Guaranteed fitment.
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