Radiator Cap

BREX Radiator Cap R123 R124 R125
Reliable cooling begins with the right pressure control, and BREX delivers consistent performance across all vehicle types.

Suitability Guide
BREX radiator caps are available in three sizes. This helps customers quickly identify which size fits their vehicle. All caps maintain a pressure rating of 0.9 kilogram per square centimeter, which is ideal for most passenger cars in Pakistan.

R123 (Large)
Usually suitable for smaller engine cars up to 1000 CC. These include Suzuki Alto, Suzuki Mehran, Suzuki Cultus carburetor models, Daihatsu Cuore and similar compact vehicles. Ideal for drivers looking for a dependable replacement that supports proper coolant circulation in small size radiators.

R124 (Medium)
Typically used in mid range engines from 1000 to 1300 CC. Suitable for Suzuki Wagon R, Suzuki Cultus EFI, Toyota Vitz older generations, Toyota Passo, Nissan March and other similar hatchbacks. This size supports stronger cooling requirements without stressing the radiator system.

R125 (Small)
Commonly found in larger vehicles from 1300 to 1800 CC. Suitable for Toyota Corolla XLI GLI, Honda City, Honda Civic older models, Toyota Belta, Toyota Allion and many mid-size sedans. Designed to maintain correct cooling system pressure for bigger engines that create more heat.

Please confirm the size before placing an order. You can see your old radiator cap for numbers like R123, R124 or R125. If you are not sure, please contact us to get the confirmation. 

Universal Fitment
Many local vehicles also accept these caps based on radiator neck design, making BREX a universal and convenient option for mechanics and drivers who want a reliable replacement without confusion.

Product Overview
A radiator cap may seem like a tiny part, but it plays a vital role in keeping your engine cool and your coolant system sealed. BREX radiator caps maintain the correct pressure inside the cooling system. This prevents coolant loss, reduces overheating risk and supports efficient temperature control especially in Pakistan’s hot weather and traffic conditions.

Key Features and Benefits
• Maintains a stable pressure of 0.9 kilogram per square centimeter which helps prevent boiling and coolant evaporation
• High quality sealing that prevents leaks and keeps the cooling system airtight
• Strong spring mechanism for consistent pressure release
• Corrosion resistant metal body for long life
• Compatible with a wide range of local and imported vehicles in Pakistan
• Supports better fuel efficiency and engine performance by maintaining stable temperature

Technical Details
• Precision engineered pressure spring for accurate pressure release
• Heat resistant gasket to prevent coolant leakage
• Designed for long service life under high temperature conditions
• Provides optimal sealing to avoid air entry which can cause overheating

In House Manufacturing and Quality Testing
BREX radiator caps are manufactured under controlled conditions with strict testing for pressure accuracy, sealing performance, heat resistance and durability. Every piece is checked to ensure it performs consistently even under tough driving situations. Our in house production helps maintain reliability and trusted performance for Pakistani drivers.

Why It Matters
Pakistan’s climate, long traffic jams and dusty conditions can cause engines to overheat more easily. A weak or worn radiator cap leads to coolant loss, boiling and reduced pressure, which damages the engine. BREX radiator caps help maintain the correct pressure and keep the cooling system working efficiently, giving drivers peace of mind on every road.