Sourced from ASHIKA, this thermostat coolant (38-03-307) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Opening Temperature [°C]: 82 °C, Diameter [mm]: 67 mm, Height [mm]: 56 mm, Diameter 1 [mm]: 29 mm, Fitting Depth [mm]: 37 mm — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit MAZDA models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 23-40063-SX, 38307, 8AH1-15-171, 8AH2-15-171 and 4 more. Matching these numbers confirms a like-for-like replacement with no loss of function. ASHIKA is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.

Ashika, part of the Italian Japanparts Group, is an aftermarket brand specialising in replacement parts for Japanese and Korean vehicles. Ashika offers filters, brake pads, brake discs, shock absorbers, water pumps, and suspension components engineered specifically for Asian vehicle platforms. Products are manufactured to OE-equivalent standards with quality certifications ensuring consistent performance. Ashika provides an ideal balance of quality and value for workshops and vehicle owners maintaining Toyota, Honda, Nissan, Hyundai, and Kia models at competitive prices.