BorgWarner 12747100018 EFR B2 8474 Turbo Cartridge Cast Iron Bearing Housing

The BorgWarner 12747100018 is an EFR (Engineered For Racing) B2 frame turbocharger cartridge featuring a cast iron bearing housing. This high-performance turbo cartridge is designed for forced induction applications requiring exceptional boost response and a broad powerband in the 500-800+ horsepower range.

Key Features:

• B2 frame size with 84mm compressor wheel exducer and 68mm inducer
• Cast iron bearing housing construction for durability
• Dual ceramic ball bearing system for reduced friction and improved response
• 4.0-inch (101.6mm) compressor inlet and 2.5-inch (63.5mm) outlet
• Compatible with EFR 8474 turbine housings
• Proven performance in motorsports including Pike's Peak and professional racing

This cartridge assembly is engineered with BorgWarner's state-of-the-art turbo technology, featuring a lower-inertia 84mm compressor wheel design that delivers instant boost response. The cast iron bearing housing provides robust durability for high-performance applications. Ideal for motorsport engines, high-output street builds, and competitive racing applications where reliable power delivery is critical.