Genuine Mazda Miata Radiator Cap

Cooling Radiator Cap

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4 Radiator Caps found

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Mazda Miata Cap Part Number: KL01-15-205
$17.43 MSRP: $23.24
You Save: $5.81 (25%)
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Product Specifications
- Other Name: Cap, Radiator Sub Tank; Cap, Reservoir Cap
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 1999-2003 Mazda Miata | 10th Anniversary, Base, LS, SE, Shinsen | 4 Cyl 1.8 L GAS
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Mazda Miata Cap Part Number: D316-15-205
$28.48 MSRP: $37.98
You Save: $9.50 (26%)
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Product Specifications
- Other Name: Cap, Radiator; Cap, Reservoir Cap
- Replaces: D316-15-205-PT, N350-15-205
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 1990-1997 Mazda Miata | Base, LE, M Edition, SE, STO | 4 Cyl 1.6 L GAS, 4 Cyl 1.8 L GAS
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Mazda Miata Radiator Cap Part Number: YF47-15-205
$17.31 MSRP: $23.09
You Save: $5.78 (26%)
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Product Specifications
- Other Name: Cap, Radiator; Radiator Cap
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2005 Mazda Miata | Base, LS, Mazdaspeed | 4 Cyl 1.8 L GAS
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Mazda Miata Cap Part Number: B61P-15-355A
$34.01 MSRP: $45.35
You Save: $11.34 (26%)
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Product Specifications
- Other Name: Cap, Tank
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 1990-1997 Mazda Miata | Base, LE, M Edition, SE, STO | 4 Cyl 1.6 L GAS, 4 Cyl 1.8 L GAS

Mazda Miata Radiator Cap

The Mazda Radiator Cap ensures the legendary roadster remains cool under stress by keeping the coolant at a constant sixteen PSI, increasing the boiling point and preventing overheating on hot days. With the help of a tough spring-loaded valve that opens only when the pressure is excessive, the Mazda Radiator Cap works across the entire range of models; one cap is fitted across the entire run of models, no matter the generation. This minor component gains a huge reputation for reliability since it balances the flow of heat, allows the water pump to circulate the coolant effectively, and protects the aluminum block against thermal stress that may drain performance. There is also increased safety, because the pressure relief channel diverts the super-hot liquid out of the engine bay rather than spurting out, which would give every Mazda Miata fan peace of mind. Another physical aspect that makes the product really good is the visible 16 PSI stamp at the top, which allows a quick visual examination even for owners who have not applied the device before and want to confirm the health of the component. A slimmer gasket design, which is present in later models, provides a more airtight seal, a minor detail that ensures that every Mazda stays cool during aggressive driving or on long ascents of the highway. Combined with new coolant and clean passages, the Radiator Cap acts as an unrecognized coach guiding a proven thermal strategy plan that makes the nimble Miata feel enthusiastic, controlled, and safeguarded over every mile of its road journeys.

Looking for Radiator Cap with proven quality? Choose OEM Radiator Cap. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda Miata parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine Miata part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.