

⚡ Upgrade your turbo with precision and power — don’t let a worn stud slow you down!
The Dorman 03418 Turbocharger Stud Kit is a high-quality, direct replacement stud designed specifically for select Mazda models. Made from durable Grade 2 alloy steel with a 3/8"-16 UNC thread size, it ensures reliable performance and a perfect OEM fit. Backed by over a century of automotive expertise, this stud offers long service life and is ready to paint for a customized finish.




| Material | Alloy Steel |
| Thread Size | 3/8"-16 UNC |
| Exterior Finish | Ready To Paint If Needed |
| Manufacturer Grade | Grade 2 |
| Head Style | Flat |
| Color | Black Phosphate |
| Fastener Type | Stud Bolt |
| Brand | Dorman |
| Thread Type | Unc |
| Thread Style | Right Hand |
| Item Hardness | Grade 2 |
| Size | 1 Count (Pack of 1) |
| Metal Type | Alloy Steel |
| Head Type | Round |
| Compatible groove diameter | 1.8 Inches |
| Thread Class | 3B |
| UPC | 037495034180 |
| Global Trade Identification Number | 00037495034180 |
| Manufacturer | Dorman Products |
| Model | Turbocharger Stud Kit |
| Item Weight | 3.36 ounces |
| Product Dimensions | 5.5 x 1.8 x 1.1 inches |
| Item model number | 03418 |
| Manufacturer Part Number | 03418 |
| OEM Part Number | L3K913146A |
J**N
Fits 1987 Buick Regal 3.8 turbo
Lost one of the original studs/nuts. Used this kit to replace. Same size and thread pitch as the OEM 1987 Buick production. Only caveat is these studs are a 1/4" longer.
T**D
Dorman 03418 Turbocharger Stud Kit Compatible with Select Mazda Models
Arrived on time and were the same quality as the kit I ordered from my local auto parts store but at half the cost .. They fit my new aftermarket turbo for my 2011 Mazda CX7 and worked as they should. If you need these, buy them and you wont be disappointed.
A**R
Good Quality Stud Kit - Not For Mazdaspeed6
Quality is good. However, as others have said, some of the packages do not contain 3 studs and 3 bolts. Very strange.The studs were slightly longer than stock and the bolts were wider than the stock Mazdaspeed6. Could only use them on the Turbo to Downpipe connection. They would not fit on the Turbo to Exhaust Manifold connection. This was with aftermarket parts.Socket size is also 15mm, whereas stock is 14mm.
M**E
They fit the Cummins 12v
They fit the Cummins 12v header to bolt on the turbo which is really fortunate since I couldn't find the bolts anywhere else for a reasonable price
C**B
Fit perfect. Only comes with 3 studs and 3 nuts
Fit as advertised and Quick shipping. Just a note though it only comes with 3 studs as in the picture so it is not a complete turbocharger stud replacement kit.
P**K
Absolutely order extra.
Make absolute sure you order more than you be need. Both packages in photo are completely sealed, yet somehow one package is missing a stud and one package is missing a nut. So weird.
R**N
Good quality studs.
Good strong studs, a touch longer than stock on a 01 Cummins. Bought a spare kit, don’t think I’ll ever need it.
A**R
Works Well - Comes in 1 pack of 3
These work well. Slightly longer. They say 1 count (pack of 1) but it is really a pack of three bolts and three nuts.
Trustpilot
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