Koyo Hyper Radiator Cap - Shallow Plunger Blue Label SK-D13 — Fits 2013-2017 Scion FR-S / Subaru BRZ / Toyota 86

SKU: KOYSK-D13
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Koyo

Koyo engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Koyo lineup with fast shipping and expert fitment support — order with confidence.

Enhance Your Cooling System with Koyo Hyper Radiator Cap

The Koyo Hyper Radiator Cap, model SK-D13, is a premium upgrade designed to optimize your vehicle's cooling system. Featuring a shallow plunger style and distinctive blue label, this cap is engineered to maintain consistent pressure within your radiator, preventing coolant boil-over and ensuring efficient heat transfer, especially under demanding driving conditions.

Precision Engineered for Specific Fitment

  • Part Number: SK-D13
  • Increased Pressure Rating: Helps raise the boiling point of coolant for better thermal management.
  • Shallow Plunger Design: Ensures precise fitment and reliable sealing.
  • Durable Construction: Built by Koyo for long-lasting performance and reliability.
  • Blue Label: Signature Koyo Hyper series aesthetic.

This Koyo Hyper Radiator Cap is a direct fit for a range of popular sports cars, including the 2013-2016 Scion FR-S (Base), 2013-2017 Subaru BRZ (Limited, Premium, Series.Blue, Series.HyperBlue), and 2017 Toyota 86 (Base, Special Edition). Ensure your engine stays cool and performs optimally with this essential cooling upgrade from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2013-2016 Scion FR-S Base
2013-2017 Subaru BRZ Limited
2013-2017 Subaru BRZ Premium
2015 Subaru BRZ Series.Blue
2016 Subaru BRZ Series.HyperBlue
2017 Toyota 86 Base
2017 Toyota 86 Special Edition

Product Details

Product Description
Part Numbers
Sizing & Fit

About Koyo

Koyo engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Koyo lineup with fast shipping and expert fitment support — order with confidence.

Enhance Your Cooling System with Koyo Hyper Radiator Cap

The Koyo Hyper Radiator Cap, model SK-D13, is a premium upgrade designed to optimize your vehicle's cooling system. Featuring a shallow plunger style and distinctive blue label, this cap is engineered to maintain consistent pressure within your radiator, preventing coolant boil-over and ensuring efficient heat transfer, especially under demanding driving conditions.

Precision Engineered for Specific Fitment

  • Part Number: SK-D13
  • Increased Pressure Rating: Helps raise the boiling point of coolant for better thermal management.
  • Shallow Plunger Design: Ensures precise fitment and reliable sealing.
  • Durable Construction: Built by Koyo for long-lasting performance and reliability.
  • Blue Label: Signature Koyo Hyper series aesthetic.

This Koyo Hyper Radiator Cap is a direct fit for a range of popular sports cars, including the 2013-2016 Scion FR-S (Base), 2013-2017 Subaru BRZ (Limited, Premium, Series.Blue, Series.HyperBlue), and 2017 Toyota 86 (Base, Special Edition). Ensure your engine stays cool and performs optimally with this essential cooling upgrade from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2013-2016 Scion FR-S Base
2013-2017 Subaru BRZ Limited
2013-2017 Subaru BRZ Premium
2015 Subaru BRZ Series.Blue
2016 Subaru BRZ Series.HyperBlue
2017 Toyota 86 Base
2017 Toyota 86 Special Edition

Product Details

Product Description

About Koyo

Koyo engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Koyo lineup with fast shipping and expert fitment support — order with confidence.

Enhance Your Cooling System with Koyo Hyper Radiator Cap

The Koyo Hyper Radiator Cap, model SK-D13, is a premium upgrade designed to optimize your vehicle's cooling system. Featuring a shallow plunger style and distinctive blue label, this cap is engineered to maintain consistent pressure within your radiator, preventing coolant boil-over and ensuring efficient heat transfer, especially under demanding driving conditions.

Precision Engineered for Specific Fitment

  • Part Number: SK-D13
  • Increased Pressure Rating: Helps raise the boiling point of coolant for better thermal management.
  • Shallow Plunger Design: Ensures precise fitment and reliable sealing.
  • Durable Construction: Built by Koyo for long-lasting performance and reliability.
  • Blue Label: Signature Koyo Hyper series aesthetic.

This Koyo Hyper Radiator Cap is a direct fit for a range of popular sports cars, including the 2013-2016 Scion FR-S (Base), 2013-2017 Subaru BRZ (Limited, Premium, Series.Blue, Series.HyperBlue), and 2017 Toyota 86 (Base, Special Edition). Ensure your engine stays cool and performs optimally with this essential cooling upgrade from GGCRACING.

Vehicle Fitment

Years Make Model Trim
2013-2016 Scion FR-S Base
2013-2017 Subaru BRZ Limited
2013-2017 Subaru BRZ Premium
2015 Subaru BRZ Series.Blue
2016 Subaru BRZ Series.HyperBlue
2017 Toyota 86 Base
2017 Toyota 86 Special Edition

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