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Dorman 03412B Exhaust Manifold Hardware Kit Compatible with Select Models

4.8 (11) Write Review
Free shipping on orders over $29.99

$14.55

$ 6 .99 $6.99

In Stock
  • Direct replacement - this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles
  • Ideal solution - this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
  • Durable construction - this kit is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool


This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.


VERY VERY VERY DISAPPOINTED IT DOESN'T WORK
Reviewed in the United States on February 22, 2025
High quality
Ian Cognitos
Reviewed in Canada on January 17, 2025
I find Dorman to deliver quality
Keith Peters
Reviewed in the United States on September 22, 2024
No issues and they fit Perfect on my 94 Chevy K1500
samantram
Reviewed in the United States on June 4, 2024
Fit perfectly on my 95 k1500 5.7 350 v8, Passenger side exhaust manifold. I bought some automotive washers from Auto Zone to use with these.
Sergio H.
Reviewed in the United States on June 16, 2024
Same size as my original ones. Fit on my 87 k10 with 350 sbc with original style exhaust manifolds
WILL
Reviewed in the United States on April 29, 2024
they work
Frank T Slade (in PA)
Reviewed in the United States on April 23, 2023
Replaced both exhaust manifolds outdoors, in the middle of a PA Winter, on multiple 45-50 F days was a job in itself. These new studs along with silver anti-seize made the task more bearable.These fit exactly. I believe they are strongest Grade 8 matching them to similar _owe's hardware.
Lowufo
Reviewed in Canada on June 5, 2021
These bolts are too long like other people have mentioned in their reviews. I would be concerned about the extra length all I need is hitting a water jacket in the block. Not only that but in my application (1995 Yukon with 350 V8) three should be studs as shown in the attached picture to accommodate the alternator bracket and the heat shields. The price of these bolts is way too much compared to just getting some grade 8 bolts at a hardware store. I assumed three were studs and three were standard bolts and the picture in listing was just a generic picture of grade 8 bolts. Wrong...... I will be returning these.
Robert Coram
Reviewed in the United States on February 1, 2020
They were too long for the exhaust manifold on my 1988 k2500 with a 350 ended up going to Ace hardware and buying a bunch of washers to make work
Maira Padilla
Reviewed in the United States on December 18, 2020
Does not fit any stock manifolds for a OBS I have a 1994 suburban and it’s a bit too big and too thin on the thread side of it. Better off looking somewhere else for it do not waste your money or time with this company. I would give a 0 star if I could.
YoremeJupare
Reviewed in Mexico on September 20, 2017
Compre este articulo y no se ajusta adecuadamente. El tornillo que ocupo es 3/8-16x2 cabeza hexagonal con brida grado 8 solicito su devolución si es posible.Gracias y espero respuesta.