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ARP Main Stud Kit 2-Bolt For 91-00 BMW 325i/525i/M3/Z3 & M50/M52/S50US/S52US
SKU:
201-5000
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- $189.99
- $189.99
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Designed for BMW’s robust M50-based 24-valve inline-6 engines, the ARP 2-Bolt Main Stud Kit offers bulletproof bottom-end reinforcement. It eliminates main cap walk and fretting while preserving block threads under high load conditions, ideal for high-performance street builds and full-race applications alike.
Made from premium 8740 chrome moly steel, each stud is heat-treated to 190,000 psi and rolled with J-form threads after treatment—ensuring unmatched fatigue strength. Complete with hardened washers and aerospace-grade nuts, this kit replaces factory hardware with racing-grade reliability.
Features:
- Heat-treated to 190,000 psi tensile strength
- Rolled threads offer 1000% better fatigue strength
- Prevents main cap walk and block thread damage
- Fits BMW M50, M52, S50US, and S52US engines
- Replaces BMW OEM part numbers for easy install
- Cold-forged for superior molecular integrity
- Includes aerospace-grade nuts and washers
- Ideal for high-horsepower or track builds
Specifications:
- Main Bolt Style: 2-bolt
- Fastener Style: Stud
- Fastener Nut Style: Standard hex
- Works with Windage Tray: No
- Fastener Tensile Strength (psi): 190,000 psi
- Nuts Included: Yes
- Washers Included: Yes
- Quantity: Sold as a kit
Included:
- (1) Head Stud Kit
Fitment:
- 1991-1995 E34 525i (24v, M50 and M50TU)
- 1992-1995 E36 325i, 325is (M50 non-VAN0S & M50TU VAN0S)
- 1996-1998 E36 328i, 328is (M52)
- 1994-1995 E36 M3 3.0 liter (US spec)
- 1996-1999 E36 M3 3.2 liter (US spec)
- 1997-1998 E39 528i (single VAN0S)
- 1997-1998 Z3 2.8 liter
- 1998-2000 MZ3 M Roadster / M Coupe
Note:
- Lifetime Warranty
Product Specs
SKU:
201-5000
Brand:
ARP
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