1998-02 Honda Accord Rear Muffler with Gasket - 1AEMK00186

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How-To & Tools
Product Reviews
Vehicle Fit


  • Direct fit muffler
  • Replaces dealer part numbers: 18030-S84-A01, 18030S84A01
  • Built to strict quality control standards
  • Includes gasket

Item Condition: New

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge.

Due to the nature and size, exhaust parts may incur minor dents or scratches from handling and load shifting during shipping. These damages do not affect the fit or function of the part. Neither our 60 Day satisfaction guarantee, nor the manufacturer's warranty, cover these insignificant damages.

  1. step : Removing the Upstream Oxygen (O2) Sensor (0:52)
    • Remove the O2 sensor with an O2 sensor socket and ratchet
    • If the O2 sensor will not remove, cut the O2 sensor wire and remove it with a 7/8 inch socket
  2. step : Loosening the Exhaust Manifold from the Engine (1:35)
    • Remove the two 12mm bolts from the heat shield
    • Remove the nine 12mm nuts from the exhaust manifold
    • Remove the 14mm bolt from the catalytic converter bracket
    • Remove the 10mm bolt from the oxygen sensor bracket
  3. step : Removing the Downstream O2 Sensor (2:58)
    • Disconnect the o2 sensor wiring harness
    • Pull the harness off of its bracket
    • Remove the O2 sensor with an O2 sensor socket and ratchet
    • If the O2 sensor will not remove, cut the O2 sensor wire and remove it with a 7/8 inch socket
  4. step : Removing the Catalytic Converter (3:18)
    • Raise and secure the vehicle
    • Remove the three 13mm bolts from the catalytic converter
    • Pull the catalytic converter up and out
  5. step : Preparing the New Catalytic Converter (4:19)
    • Remove the two 12mm bolts from the new heat shield
    • Pull the heat shield off the new catalytic converter
    • Remove the 14mm bolt from the old catalytic converter bracket
  6. step : Installing the New Catalytic Converter onto the Engine (5:07)
    • Pry out the old catalytic converter gasket with a flat blade screwdriver
    • Push a new gasket into the exhaust pipe
    • Pull off the old exhaust gasket
    • Hang a new exhaust gasket on the studs
    • Thread the nuts off the bottom of the new catalytic converter
    • Push the new catalytic converter into place, lining up the studs with the exhaust pipe flange
    • Push the exhaust manifold onto its studs
    • Fasten the nine 12mm nuts onto the exhaust manifold
    • Tighten the 12mm nuts to 25 - 30 foot-pounds of torque
    • Put the bracket into place on the catalytic converter
    • Insert the 14mm bolts into the bracket
    • Put the heat shield into place
    • Insert the two 12mm bolts into the heat shield
  7. step : Reinstalling the Upstream O2 Sensor (7:20)
    • Put the O2 sensor into place
    • Tighten the 02 sensor with the O2 socket
    • Insert the 10mm bolt into the oxygen sensor bracket
  8. step : Fastening the Catalytic Converter to the Exhaust Pipe (7:37)
    • Fasten the three 13mm nuts onto the catalytic converter
    • Tighten the 13mm nuts to 25 - 35 foot-pounds of torque
  9. step : Reinstalling the Downstream O2 Sensor (7:53)
    • Thread the O2 sensor into place
    • Tighten the 02 sensor with the O2 socket
    • Reconnect the O2 sensor wiring harness
    • Clip the harness into its bracket

Tools needed for replacement:

    General Tools

  • Floor Jack
  • Jack Stands

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Pliers, Cutters & misc Wrenches

  • Wire Cutters

  • Ratchets & Related

  • A Piece of Pipe (for leverage)
  • Ratchet
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 10mm Socket
  • 11mm Socket
  • 12mm Socket
  • 13mm Socket
  • 14mm Socket

  • Sockets - SAE

  • 7/8 Inch Socket

  • Specialty Tools

  • O2 Sensor Socket

5.00/ 5.0
5 Stars
4 Stars
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2 Stars
1 Star
well well well
Honda wanted $700,00 to install a new muffler ... my 2001 Accords muffler had lasted 16 years and 367,000 miles so I looked all over the internet for a replacement... I not only saved a load of cash on this new muffler - a local mechanic installed it for $20 cash because it was so easy to install ! the only cons were that I had to take the muffler to ACE hardware so they could find the right size nuts to install it because they are not supplied ! and I had to buy two new rubber hangers for it.
February 14, 2017
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Year Make Model Description
1998-2002Honda Accord Honda Accord L4 2.3L Rear Muffler with Gasket
Only 7 left in stock
Part 1AEMK00186
In Stock

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Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.