MAZDA P502-15-171 Engine Coolant Thermostat CX-50

( Manufacturer Part Number: P502-15-171 ), ( Model: 3 CX-50 CX-30 CX-5 CX-9 MX-5 6 CX-3 ), ( Part Type: Engine Thermostat ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 2016 2017 2018 2019 2020 2021 2022 2023 2024 ), ( Parts Included: Only Part Reference 12 On The Diagram Is Included )

Review MAZDA Genuine Engine Coolant Thermostat fits 2016–2024

The Mazda P502-15-171 engine coolant thermostat is a crucial component of your Mazda's cooling system, designed to regulate the temperature of the engine coolant and maintain optimal operating conditions. This thermostat ensures that the engine warms up efficiently during cold starts and prevents overheating during normal driving conditions.

This thermostat is a sandwich-type design, featuring a temperature-sensitive valve assembly sandwiched between two metal housings. The valve assembly consists of a stainless steel disc and a temperature-sensitive wax element. As the coolant temperature rises, the wax element expands, causing the disc to move and open the internal passageways, allowing coolant to flow from the engine to the radiator.

The Mazda P502-15-171 engine coolant thermostat is specifically engineered to meet the unique requirements of Mazda engines. It is precision-machined to ensure a perfect fit and seals tightly to prevent coolant leaks. The thermostat housing is made of durable cast aluminum, which provides excellent heat dissipation and resistance to corrosion.

The temperature range of the Mazda P502-15-171 engine coolant thermostat is designed to provide optimal engine performance. It opens at an engine coolant temperature of approximately 85 F (29.4 C) and is fully open at approximately 180 F (82.2 C). This allows the engine to warm up efficiently during cold starts while preventing overheating during normal driving conditions.

Installing the Mazda P502-15-171 engine coolant thermostat is a straightforward process. It is designed to be a direct replacement for the original equipment thermostat and can be installed using common hand tools. The thermostat comes with all necessary gaskets and hardware to ensure a hassle-free installation.

In summary, the Mazda P502-15-171 engine coolant thermostat is a high-quality, precision-engineered component that is essential for maintaining optimal engine performance and cooling system efficiency. Its durable design, precise temperature control, and easy installation make it an excellent choice for Mazda owners who want to keep their vehicles running at their best.

The Mazda P502-15-171 engine coolant thermostat is an essential component in the cooling system of Mazda engines. It regulates the temperature of the coolant by opening or closing based on engine temperature. Here are some pros and cons of buying this specific thermostat:

1. OEM Part: This thermostat is an original equipment manufacturer (OEM) part, which means it is designed and manufactured by Mazda. This ensures a perfect fit and optimal performance.

2. Temperature Control: Proper functioning of the thermostat is crucial for maintaining the correct engine temperature. A faulty thermostat can cause overheating or poor cooling, which can lead to engine damage.

3. Reliability: Mazda is known for producing high-quality parts, and this thermostat is no exception. It is designed to last and provide consistent performance.

1. Cost: OEM parts tend to be more expensive than aftermarket alternatives. However, the extra cost may be worth it for the peace of mind and reliable performance.

2. Availability: Replacing a thermostat with an OEM part may require visiting a Mazda dealership or an authorized repair center, which could be inconvenient for some.

In conclusion, the Mazda P502-15-171 engine coolant thermostat is a high-quality, reliable part that ensures optimal engine temperature control. While it may be more expensive than aftermarket alternatives, the benefits of using an OEM part outweigh the cost. If you are looking for a thermostat that guarantees a perfect fit and reliable performance, then this is the part for you.

If you are experiencing issues with your engine temperature or if you are due for a thermostat replacement, then it is recommended to use the Mazda P502-15-171 engine coolant thermostat. While it may be more expensive than aftermarket alternatives, the peace of mind and reliable performance make it a worthwhile investment.

Details:

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Electrical parts are not returnable. Parts must be resalable and in the original packaging.

part #: p50215171 prices

• $24.35-$199.28

specifications theostapa:

• for makes: Mazda
• for years: 2016-2024
• mpn: P502-15-171
• model: 3 Cx-50 Cx-30 Cx-5 Cx-9 Mx-5 6 Cx-3
• part type: Engine Thermostat
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• year: 2016 2017 2018 2019 2020 2021 2022 2023 2024
• parts included: Only Part Reference 12 On The Diagram Is Included

general theostapa:

• Car Truck Parts Accessories > Engine Cooling Components > Thermostats Housings
• condition: New

seller theostapa:

• rating: 100.0%
• city: Hopkins, Minnesota
• # reviews: 215

payments theostapa:

• wallet: Paypal
• other
• credit card: Diners-club

returns theostapa:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

offer theostapa:

• availability: In Stock
• options: Ship-to-home
• started: January 20, 2026
• quantity: 2
• sold: 0

shipping theostapa:

• service: USPS Ground Advantage, UPS Ground, USPS Priority Mail
• type: Calculated
• class: Standard, Expedited
• transit: 4-8 Days
• cost: $14.70
• carrier: USPS, UPS

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