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🔧 Upgrade your ride with bolts that mean business!
The Dorman 03423 Exhaust Manifold Bolt Kit offers a high-strength, direct-fit replacement bolt made from durable alloy steel with Grade 10.9 hardness and 500 MPa shear strength. Designed for select BMW, Subaru, Toyota, Lexus, and other models, it ensures reliable exhaust system performance backed by over 100 years of automotive expertise. Confirm fitment easily with the online garage tool for a hassle-free upgrade.
| ASIN | B0181H22YK |
| Brand | Dorman |
| Color | Yellow |
| Compatible Groove Diameter | 1E+1 Millimeters |
| Customer Reviews | 4.7 4.7 out of 5 stars (582) |
| Drive System | All-Wheel Drive |
| Exterior Finish | Ready To Paint If Needed |
| Fastener Size | M10 |
| Fastener Type | Hexagon Bolt |
| Finish Types | Unfinished |
| Global Trade Identification Number | 00037495489300 |
| Grade Rating | 10.9 |
| Head Type | Hex |
| Included Components | Bolt |
| Item Diameter | 10 Millimeters |
| Item Dimensions | 5.5 x 1.75 x 1.3 inches |
| Item Hardness | Grade 10.9 |
| Item Type Name | Exhaust Manifold Hardware Kit |
| Item Weight | 0.16 Pounds |
| Manufacturer | Dorman Products |
| Manufacturer Grade | Regular |
| Material Type | Alloy Steel |
| Maximum Shear Strength | 500 MPa |
| Metal Type | Alloy Steel |
| Model | 03423 |
| Number Of Items | 1 |
| Number of Pieces | 4 |
| Part Number | 03423 |
| Screw Head Style | Flat |
| Set Name | Exhaust Manifold Bolt Set |
| Set Screw Thread Type | Metric Fine |
| Size Name | 1 Count (Pack of 1) |
| Thread Class | 3A |
| Thread Coverage | Fully Threaded |
| Thread Size | M10 |
| Thread Style | Right Hand |
| Thread Type | Metric |
| UPC | 037495489300 |
| Unit Count | 1.0 Count |
| Warranty Description | Limited Lifetime Warranty |
A**E
Exhaust manifold bolts
Work on 2003 Honda Accord when installing the catalytic converter . Well made and fit perfectly
A**L
used when replacing a catback exhaust
bought this kit to use when i replaced my oem catback exhaust because i has to cut and drill out old rusted bolts. these worked as intended no issues
J**N
Good fit
Quality products
D**R
Works well for a Subaru, but the nuts are a bit undersized.
This works well for a Subaru's exhaust, but the nuts are a bit undersized. Not sure why they did that... But still big enough that it holds everything together. Much cheaper than OEM, and gets the job done. Thanks Dorman!
J**Z
Exhaust bolt kit used to connect tailpipe & muffler together
Bolts were long enough to connect my new tail pipe to the muffler on my Honda Element. Cleared both flanges with the gasket installed and was the perfect length to secure everything together.
T**7
Good
Quality
D**O
Very good
Fast shipping, I received everything in good condition, looks like good quality, everything was good thanks
J**.
Just what I needed
I purchased a new exhaust, and as soon as I examined the flange bolts, I realized I would need to replace them. These bolts fit perfectly. I didn't require the nuts since the ones on my truck are welded on, but I was glad they came with the bolts in case I needed to cut off the old ones. I used these on a 3rd generation Tacoma.
M**S
Bought as a replacement for my catback exhaust for 04 WRX. Fit's perfect. Cheaper than ordering OEM replacement as well!
G**N
It said it was not compatible with my 08’ Civic Si. The car came with an aftermarket exhaust system. As you can see on the picture, it’s perfect.
D**E
Worked perfect on my chevy.
A**A
Did exactly what I needed them to do
T**N
Used this on my 2007 GMC Sierra. At ball flange connection. It said it wouldm't work but it does. Perfectly.
Trustpilot
1 week ago
1 month ago