Mr. Gasket
Mr. Gasket 3/8-16 x 3/4 Header Bolt Set (12) Combo Hex & Soc - 3420G
Mr. Gasket 3/8-16 x 3/4 Header Bolt Set (12) Combo Hex & Soc - 3420G
Regular price
$33.99 USD
Regular price
Sale price
$33.99 USD
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Exhaust manifold from Mr. Gasket. The part number and specifications are listed below. Tube headers can free up flow for more power, while cast manifolds are the factory-style replacement.
Quick facts
- Brand: Mr. Gasket
- Part type: Exhaust manifold
- Part number: 3420G
Specifications
- Weight: 0.535 lbs
Tip: Use new gaskets and studs, and check emissions rules where you live before changing headers.

Before you order: fitment and what to plan
The exhaust manifold or header collects exhaust from each cylinder and sends it into the exhaust system.
Fitment notes
- Specs, lead time and warranty come from Mr. Gasket and can change. The details above this guide are the latest we have.
Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentPlan the whole job
- Exhaust manifold gaskets. Always new.
- Studs and nuts. Old studs often break on removal.
More for your car: Engine · All Exhaust Manifolds · Exhaust
Questions about exhaust manifold
Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
Why is my exhaust ticking?
A cracked manifold or leaking gasket is a common cause.
Where do specs and warranty details come from?
From Mr. Gasket. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.
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