ARP Main Stud Kit - BMW M135i/M235i F4x B48 201-5404
£186.71
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ARP Main Stud Kit - BMW M135i/M235i F4x B48 201-5404
£186.71
Delivery, Returns & Stock Information
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Does this fit my car?
This product is compatible with the following models and year ranges:
Upgrade the bottom end of your B48 with this high performance ARP Main Bolt Kit. Designed for the BMW M135i/M235i, these premium fasteners provide increased clamping force and improved fatigue resistance over the original factory hardware.
Modern engines can generate substantial cylinder pressures and torque, particularly when running increased boost or modified engine hardware. Replacing the OEM main bolts with ARP fasteners helps maintain secure main cap clamping and consistent crankshaft alignment under demanding conditions, providing additional reliability for high performance and rebuilt engines.
Key Features
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High-Strength 8740 Steel: Manufactured from premium chrome moly steel and heat-treated to achieve a tensile strength of approximately 200,000 psi.
- Precision Manufactured: Centerless ground for excellent concentricity, helping maintain accurate crankshaft and bearing alignment.
- Improved Fatigue Resistance: Threads are rolled after heat treatment for enhanced strength and resistance to stress and fatigue.
- Ideal for Performance Builds: A worthwhile upgrade for engines running increased boost, higher cylinder pressures or undergoing a performance rebuild.
- ARP Quality: Engineered and manufactured to ARP's exacting standards for high-performance applications.
Technical Specifications
- Application: BMW B48 – BMW M135i/M235i F4x
- Part Number: 201-5404
- Material: 8740 Chrome Moly
- Tensile Strength: 180,000-210,000 psi
- Kit Contents: Complete set of ARP main studs and ARP Ultra-Torque assembly lubricant
Installation
For the best results, always follow the recommended ARP installation procedure, including the specified torque sequence and use of the supplied ARP Ultra-Torque assembly lubricant. Correct installation is essential to achieving the required fastener preload and ensuring maximum head gasket clamping performance.
A worthwhile upgrade for any high performance B48 engine where increased cylinder pressures demand stronger and more reliable main cap clamping.
