Castrol B373 Racing Gear Oil SAE 90 1L 1600ED – Extreme Pressure EP Transmission & Gear Oil

Castrol B373 Racing Gear Oil SAE 90 1L 1600ED is a specialist extreme-pressure gear lubricant designed for demanding transmission and drivetrain applications where a high-performance SAE 90 gear oil is required.

Developed for motorsport and high-load applications, Castrol B373 provides effective lubrication and protection for compatible gears and transmission components operating under severe pressure and demanding conditions. Its extreme-pressure properties help reduce friction and wear between heavily loaded gear surfaces.

Key Features & Benefits

• Premium Castrol B373 Racing Gear Oil
• SAE 90 viscosity grade
• 1 litre container
• Part number 1600ED
• Extreme Pressure EP gear lubricant
• Designed for demanding transmission and gear applications
• Helps protect heavily loaded gear components
• Helps reduce friction and mechanical wear
• Supports reliable lubrication under severe operating conditions
• Suitable for motorsport and performance applications where B373 / SAE 90 is specified
• Ideal for professional workshop and specialist vehicle maintenance

Product Information

• Brand: Castrol
• Product: B373 Racing Gear Oil
• Part Number: 1600ED
• SAE Grade: SAE 90
• Volume: 1L
• Product Type: Extreme Pressure Gear Oil
• Application: Compatible Gear & Transmission Systems

Always check the vehicle or equipment manufacturer's specification before use to confirm that Castrol B373 / SAE 90 is suitable for the application.