Cusco 1.3 Bar Radiator Cap - Universal
Cusco 1.3 Bar Radiator Cap - Universal
Cusco
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PRODUCT DETAILS ▾
RallySport Direct proudly carries some of the best suspension and performance modifications brought to you by the industry leaders at Cusco.
This is the Cusco 1.3 Bar Radiator Cap. This radiator cap has been designed to raise the boiling point of your coolant system for increased cooling efficiency and it helps prevent overheating. It has been designed with a reinforced main pressure valve spring which will increase the internal pressure which will increase the boiling point.
DETAILS:
- Designed with a reinforced main pressure valve spring
- Designed with silicone seals
- Operates at 1.3kb/cm2 at zero atmospheric pressure
- The atmospheric pressure of the road surface (approximately 1.0kg/cm2) is added and the pressure is 2.3kg/cm2
- Operates from 2.3kg/cm2 Boiling point approximately 126.5 Degrees Celsius
- Universal in fitment
- Sold individually
NOTE:
- Will not fit the Subaru BRZ or Scion FR-S
WHY WE CARRY THIS ▾
We only list parts we’d run ourselves or recommend to a friend building a real car. If it feels vague, unverified, or inconsistent, it doesn’t make the cut.
- Fitment-first mindset — no “universal” roulette
- Brand reputation matters — we favor proven manufacturing
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WHAT TO EXPECT ▾
This is the clean path: correct fitment, clean install, and results that match the intent.
- Install-ready experience with correct mounting where provided
- Finish that holds up to real driving, not just photos
- Selections on this page drive the exact fitment shipped
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Anyone can list parts. We curate what belongs on a serious build. Our goal is simple: fewer surprises, cleaner installs, and confidence when you hit “Buy.”
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Proven manufacturing and consistent quality matter more than hype. We bias toward what actually holds up.
Real support
If you have a question, you’ll get a human answer that helps you finish the build — not a copy-paste shrug.
RallySport Direct proudly carries some of the best suspension and performance modifications brought to you by the industry leaders at Cusco.
This is the Cusco 1.3 Bar Radiator Cap. This radiator cap has been designed to raise the boiling point of your coolant system for increased cooling efficiency and it helps prevent overheating. It has been designed with a reinforced main pressure valve spring which will increase the internal pressure which will increase the boiling point.
DETAILS:
- Designed with a reinforced main pressure valve spring
- Designed with silicone seals
- Operates at 1.3kb/cm2 at zero atmospheric pressure
- The atmospheric pressure of the road surface (approximately 1.0kg/cm2) is added and the pressure is 2.3kg/cm2
- Operates from 2.3kg/cm2 Boiling point approximately 126.5 Degrees Celsius
- Universal in fitment
- Sold individually
NOTE:
- Will not fit the Subaru BRZ or Scion FR-S
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