ARP (201-4303) BMW E46 M3/S54 12pt head stud kit
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Product details
| Management number | 219983932 | Release Date | 2026/05/03 | List Price | US$84.80 | Model Number | 219983932 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
(S54) Built for the (01-06) BMW M3... Obtaining the optimum cylinder head-to-block sealing is especially critical in small displacement engines employing high compression pistons or power adders like turbochargers, nitrous oxide and superchargers. That's why ARP head studs are popular among leading Sport Compact/Import racers.You should know that ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is precisely heat-treated to 200,000 psi. Following heattreat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It's important to note that lesser quality studs are not even centerless ground the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned something that won't happen with inferior quality head studs.ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat.You will also note that ARP offers specially undercut studs for several engines. This procedure (done only to the shorter studs) more equalizes the "stretch" of both studs, which makes for a more consistent clamping force one that compensates for head gasket compression when the head is installed. This helps prevent blown head gaskets, and assures optimum sealing!
- package dimensions :5.5 cm L x 10.7 cm W x 22.0 cm H
- Package Weight: 1.42 kg
- Country of Origin : United States
- Fit type: Vehicle Specific
| UPC | 672036036522 |
|---|---|
| Brand | ARP |
| Color | Black |
| Model | 201-4303 |
| Set Name | ARP Head Stud Kit |
| Head Type | 12 Point |
| Size Name | Stock |
| Metal Type | Alloy Steel |
| Unit Count | 1.0 Count |
| Item Weight | 3.1 Pounds |
| Part Number | 201-4303 |
| Thread Size | M3 |
| Thread Type | Metric |
| Drive System | Rear-Wheel Drive |
| Finish Types | Painted |
| Grade Rating | Grade 8740 |
| Manufacturer | ARP |
| Thread Class | 3A |
| Thread Style | Right Hand |
| Fastener Size | M3 |
| Fastener Type | Stud Bolt |
| Item Hardness | Grade 8 |
| Material Type | Stainless Steel |
| Item Type Name | Head Stud & Bolt Kits |
| Exterior Finish | Painted |
| Number Of Items | 1 |
| Thread Coverage | Fully Threaded |
| Number of Pieces | 1 |
| Screw Head Style | Round |
| Screw Point Style | Type 12 |
| Manufacturer Grade | Grade 8740 |
| Included Components | Head Stud & Bolt Kits |
| Warranty Description | Manufacturer Warranty |
| Part Interchange Info | 201-4303 |
| Compatible Groove Diameter | 3 Millimeters |
| Global Trade Identification Number | 00672036036522 |
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