Dorman Exhaust Manifold

More like a complete kit than a single part, many of our Exhaust Manifolds include gaskets and hardware for a complete installation. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience.

• Includes heat-shield for protection of hoses, wiring, and other engine components
• Cast iron or stainless tubular construction protects against warping and/or cracking
• Leak-resistant for long-lasting performance
• A rigorous quality inspection has been undertaken to ensure that this part conforms to product standards

Search Keywords: Exhaust, Manifold, Manifolds

Alternate Names: Exhaust Header

Exhaust Manifold
Frequently Asked Questions

What is an Exhaust Manifold?

• Exhaust manifolds do many different jobs (depending on application):
  • Transporting extremely hot exhaust gases (up to 1400 F) from the cylinder head to the exhaust piping.
  • Providing mounting for Oxygen sensors, A.I.R. piping, and EGR piping.
  • Sealing the engine head and exhaust piping to prevent fumes and noise from escaping the engine compartment.

Why do Exhaust Manifolds fail and what happens when they do?

• Exhaust Manifolds can fail for some of the same reasons as any other type of exhaust part. Heat, thermal stress, and corrosion can produce cracks that result in leaks and noise. When a manifold fails there is a pulsing noise ranging from a soft ticking to a loud booming depending on the size of the leak. The hot gases can burn nearby wires and hoses, causing additional damage. Additionally, carbon monoxide vapors may find their way into the passenger compartment with potentially deadly results. The Manifold must be replaced when it fails.

Reprinted from Dorman's Exhaust Manifold FAQ.

Exhaust Manifold Replacement Tips:

• Always compare the replacement unit to the original before installation.
• Always start with a cold engine. Removing exhaust bolts from a hot engine may damage the cylinder head threads.
• Clean mounting surfaces are required for all exhaust manifolds. See the shop manual for any warnings or special instructions for the vehicle application.
• Use caution when replacing exhaust manifolds on aluminum heads.
• Never reuse the exhaust manifold gaskets.
• Torque all bolts to manufacturer’s specification. See the shop manual for torque specifications and sequences.
• If the original exhaust manifold is cracked and/or has a blue color, check for a rich running engine or an ignition system failure. If this condition is not corrected, repeat failure will occur.
• For ease of installation, replace the catalytic converter and manifold as an assembly on the 1996-98 Honda Civic, especially with high miles.
• Be sure to reuse all brackets and braces. Failure to do so will result in premature failure.
• Prior to installing the oxygen sensor into the replacement manifold, inspect the Oxygen sensor threads for damage. Failure to do so will result in damaged threads on the replacement unit.
• Be sure to use anti-seize on the oxygen sensor threads to prevent galling of the threads.

Reprinted from Dorman's Exhaust Manifold "Technically Speaking" Bulletin.

Dorman's Limited Lifetime Warranty is described on Dorman's Warranty Page,
and is guaranteed and fulfilled by your eBay Seller eCarOnline.

Information for Buyers

FAQ & Common Terms

• Left & Right is the orientation when sitting in the car. Left indicates Driver's side, Right Passenger's side.
• New Take-Off (NTO) means a quality, low-cost OEM part in like-new condition. See More »
• New Old Stock (NOS) means a fully-functioning, still-new item which may be dusty from storage. See More »

Shipping Details

• International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.
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• Handling Time may be longer than advertised for special-order items and items bound for international and non-contiguous destinations.
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Troubleshooting Problems

• Payment Delays Unpaid item grievances are initiated within 14 days when payment has not been made. Payment may still be made after grievance is initiated, and will cancel the grievance.
• Adjustments or Cancellations can be made without penalty as long as item has not yet shipped; just contact us!
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Quality Assurance, Returns & Warranty

• Returns & Exchanges Accepted for any reason within 30 days for unused & unaltered products. Fees may apply.
• To Initate a Return or Exchange, contact us BEFORE shipping & please read our full return policy: See More »
• This Item has a Warranty: Covered by Dorman's Limited Lifetime Warranty. Initiate a Claim »
• Disclaimer: We do not reimburse any installment or mechanic fees; returns and warranties cover only the value of the part itself, no associated labor.

Customer Service

• Hours Live customer service is available Monday through Friday from 9am to 5pm EST, excluding US National Holidays.
• Email should be directed through eBay's "Ask a Question" link. Responses within one business day.
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