SKU: 201-5402 | UPC: 672036651138
ARP BMW B58 3.0L Main Stud Kit 2016-2023
The ARP BMW B58 3.0L Main Stud Kit delivers secure main bearing cap retention for B58 engines in BMW 3 Series 340i 4 Series 440i 5 Series 540i X3 M40i X5 xDrive40i Z4 M40i and Toyota GR Supra models from 2016 onward. These studs handle high cylinder pressures from turbo upgrades and increased boost levels while preventing cap walk under extreme loads. Engine builders rely on this kit for reliable bottom-end strength in street and track applications.
Key Features
- ARP2000 Alloy Construction: Forged studs rated at 220,000 psi tensile strength and 174,000 psi yield strength resist fatigue in high-horsepower builds.
- Precision Rolled Threads: Ensure even clamping load distribution and accurate torque values for consistent performance.
- Heat Treatment Process: Provides maximum durability against stretching and failure during repeated thermal cycles.
- Complete Kit Contents: Includes 10 main studs M12 x 1.5 thread 4.375-inch underhead length heavy-duty washers and 12-point nuts.
- Corrosion-Resistant Finish: Black oxide coating protects against rust in harsh engine environments.
Product Notes
- Use ARP Ultra-Torque fastener lubricant during installation for precise torque readings.
- Inspect main caps and block for straightness before assembly.
- Packaged in protective ARP box for safe transit.
Installation Notes
- Professional installation recommended.
- Torque studs in sequence to ARP specs: 75 ft-lbs initial then +90 degrees with moly lube.
- Compatible with stock BMW main caps. no machining required.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2019 | BMW | 3 Series | 340i Sedan |
| 2016-2019 | BMW | 3 Series | 340i xDrive Sedan |
| 2017-2021 | BMW | 2 Series | M240i xDrive Coupe |
| 2017-2021 | BMW | 2 Series | M240i Coupe |
| 2016-2020 | BMW | 4 Series | 440i Coupe |
| 2016-2020 | BMW | 4 Series | 440i xDrive Coupe |
| 2017-2023 | BMW | 5 Series | 540i xDrive Sedan |
| 2018-2021 | BMW | X3 | M40i |
| 2019-2021 | BMW | X4 | M40i |
| 2019+ | BMW | X5 | xDrive40i |
| 2020+ | BMW | Z4 | M40i |
| 2020+ | Toyota | GR Supra | 3.0 |
Why Choose ARP?
- Trusted by NHRA IHRA and Formula 1 race teams for critical fasteners.
- Manufactured in USA with rigorous quality control standards.
- Backed by limited lifetime warranty against manufacturing defects.
Frequently Asked Questions
-
Q: Will this kit fit Toyota A90 GR Supra B58 engines?
A: Yes it directly replaces OEM mains in all B58-powered Supras from 2020 including Launch Edition and Premium trims. -
Q: What alloy is used in these studs?
A: ARP2000 a proprietary nickel-chromium-molybdenum steel alloy with superior strength over 8740 chromoly used in OEM bolts. -
Q: What torque specs apply during install?
A: Follow ARP instructions: lube threads and underheads then torque to 75 ft-lbs followed by 90-degree turn using a calibrated wrench.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: ARP branded box 12 x 8 x 2 inches
- Weight: 2 lbs
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