0.9 BAR: Common on many older and some newer Japanese vehicles, especially from brands like Toyota, Honda, Nissan, Mazda, Mitsubishi, Subaru, and Lexus, used in models from the '80s through the 2000s for engines that don't require high pressure, fitting small, standard-style caps and often found on models like early Civics, Corollas, Sentras, 4Runners, and CR-Vs. Always verify by matching part numbers (like Toyota 16401-63010) or checking your current cap before buying, as pressure ratings are crucial. 

Common Makes & Examples (Check Your Specific Model!):
Toyota: Corolla, Camry, Celica, Land Cruiser, Tacoma, Yaris (various years).
Honda: Civic, Accord, CR-V, Integra (many models).
Nissan: Sentra, Altima, 240SX, Frontier, Maxima (many models).
Mazda: Miata, 323, 626, Protege (various years).
Mitsubishi: Delica, various models.
Subaru: Impreza, Legacy (older models).
Lexus: ES250, GS300, LS400 (older models). 

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1.1 BAR: Many Japanese import cars, especially Honda, Acura, Toyota, Nissan, Lexus, Mazda, and Subaru models, commonly use 1.1 Bar (approx. 16 PSI) radiator caps for their stock cooling systems, fitting popular models like older Civics, Integras, Celicas, Miata, and some newer vehicles, though it's crucial to check your specific car's factory spec as different years/models vary.

Common Makes & Models Using 1.1 Bar Caps (Examples):
Honda/Acura: Integras, Civics, Accords, Preludes, S2000s, Fit, RSX, TSX.
Toyota/Lexus: Celica, MR2, Supra, Camry, Corolla, 4Runner, Lexus SC, IS, GS models, 86/GR86.
Nissan/Infiniti: 240SX, 300ZX, 350Z, 370Z, Skyline, G35, G37, Q50.
Mazda: Miata (MX-5), RX-7, RX-8, Cosmo.
Mitsubishi: 3000GT, Eclipse, Lancer/EVO.
Subaru: Impreza, Legacy, Forester, WRX.
Hyundai/Kia: Some i10, i20, i30 models. 

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1.3 BAR: Many Japanese performance and import cars use or can upgrade to a 1.3 Bar radiator cap, commonly found on Subaru (WRX, STI), Nissan, Mitsubishi (Evo), and some Honda/Toyota models, as it raises the coolant's boiling point for better cooling under hard driving, though always check your specific vehicle's requirements.

Common Brands & Applications:
Subaru: A very popular fit, especially for Impreza WRX/STI models (1990s-2020s).
Nissan/Mitsubishi: Fits many models like Mitsubishi Evo VIII/IX/X.
Honda: Used on certain Civics, Preludes, Integras, and the Type-R.
Toyota/Mazda: Compatible with many models, including the Toyota 86 and Subaru BRZ (though some BRZs need specific caps). 

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1.8 BAR: Performance-oriented vehicles (especially;Japanese dirt bikes (Honda CRF/CR, Yamaha YZ/WR, Kawasaki KX), ATVs (Polaris Ranger, Yamaha Rhino), and some modified cars/trucks (Subaru, Ford, BMW, Mazda, even some SUVs like Tahoe/Yukon for heavy duty), offering a higher boiling point for demanding conditions, replacing standard 1.1 BAR caps.)

Common Vehicles/Types Using 1.8 Bar Caps:
Motorcycles & Dirt Bikes (Common Upgrade/Stock): Honda CR/CRF, Suzuki DR-Z/RMZ, Kawasaki KX, Yamaha YZ/WR.
ATVs/UTVs: Polaris Ranger, Kawasaki Mule, Wildcat X (often aftermarket upgrades).
Performance Cars (Universal Fit): Often used as universal performance upgrades in Subaru, Ford, BMW, Mazda, Mini Cooper. 

Dimensions & Material:

• Material: High Quality Aluminum
• Size: Big / Small Head
• Model: 0.9 BAR / 1.1BAR / 1.3BAR / 1.8BAR

Package Includes:

• 1 x Thermostatic Raditaor Cap