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SKU: 300-8342
ARP M9 x 1.25 12pt Nut for 1995-2006 BMW 3 Series M3 (E36/E46)
This ARP 12-point nut with M9 x 1.25 right-hand threads installs on ARP Pro Series connecting rod bolts in BMW S50 S52 and S54 engines. It fits E36 M3 and E46 M3 models for dependable rod fastening in high-rpm applications. Engine builders count on it for secure assembly that holds up to boosted power levels.
Key Features
- Thread Size: M9 x 1.25 RH precisely matches ARP rod bolts for full thread engagement and even load distribution
- 12-Point Head: Thin-wall 12-point design provides wrench access in confined rod cap spaces without stripping
- Material: 8740 chromoly steel heat-treated to 200,000 psi tensile strength resists fatigue in racing conditions
- Pro Series Construction: Forged and machined for consistent clamping force in high-horsepower engine builds
- Single Unit Packaging: Sold individually to replace exact nuts in ARP rod bolt kits without buying extras
Product Notes
- Pair with ARP rod bolts and use ARP Ultra-Torque assembly lube for accurate torque values
- Inspect threads for damage before installation to ensure peak performance
- Packs in anti-corrosion bag for protection during storage and transit
Installation Notes
- Professional installation recommended.
- Torque to ARP specs of 55-65 ft-lbs with moly lube or Ultra-Torque depending on rod bolt diameter
- Compatible with ARP rod bolt kits 256-4301 for S54 and 256-4300 for S52/S50 engines
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1995-1999 | BMW | 3 Series | M3 (E36) |
| 1997-2000 | BMW | Z3 | M Roadster (S52) |
| 1998-2000 | BMW | Z3 | 2.8 (S52) |
| 2001-2006 | BMW | 3 Series | M3 (E46) |
| 2003-2008 | BMW | Z4 | M3.2 (S54) |
Why Choose ARP?
- ARP fasteners secure engines in NHRA Top Fuel and Formula Drift competition vehicles
- Each nut undergoes rigorous testing for thread accuracy and load capacity
- Engineering focuses on zero defects for critical engine component reliability
Frequently Asked Questions
-
Q: Will this nut fit E46 M3 S54 connecting rods?
A: Yes it threads onto ARP Pro Series rod bolts in S54 engines as used in complete ARP kit 256-4301 which includes 16 nuts -
Q: What steel alloy and strength rating does it have?
A: Made from 8740 chromoly steel with heat treatment to a minimum 200,000 psi tensile strength for extreme duty -
Q: What torque specs apply during installation?
A: Follow ARP guidelines of 60 ft-lbs with ARP moly lube or 65 ft-lbs dry using calibrated torque wrench in three stages
Shipping & Handling
- Method: UPS Ground or USPS First Class
- Availability: In stock - ships same or next business day
- Packaging: Protective poly bag in 4 x 3 x 1 inch padded mailer
- Weight: 0.04 lbs
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