AP Exhaust Exhaust Bolt and Spring Set 4678
AP Exhaust Exhaust Bolt and Spring Set 4678

AP Exhaust Exhaust Bolt and Spring Set P/N:4678

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$8.99
MPN: 4678
Item Package Quantity: 1

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AP Exhaust Exhaust Bolt and Spring Set P/N:4678
AP Exhaust Exhaust Bolt and Spring Set P/N:4678
$8.99

Silence rattles at the exhaust joint and keep your pipes properly clamped with the AP Exhaust Bolt and Spring Set (MPN 4678) — a matched bolt-and-spring hardware kit for the spring-loaded flange connections used across a wide range of import and domestic cars and light trucks. It installs as a direct-fit replacement for the listed applications, including the 2001-2015 Honda Civic [L4-1.7L/L4-1.8L], 1997-2001 Honda CR-V [L4-2.0L], 2002-2012 Nissan Sentra [L4-2.0L/L4-2.5L], 2007-2012 Acura RDX [L4-2.3L], and 2002-2006 Acura RSX [L4-2.0L]. With 164 applications total, see the Buyer's Guide tab for the full list.

  • Exhaust-grade hardware: Materials help withstand heat, vibration, and road exposure at the exhaust connection.
  • Matched set: The bolt and spring pair together to help maintain proper tension where the flanges join.
  • Service-ready kit: Supplied as a ready-to-install set, so there's less time spent sourcing individual pieces.
  • Country of origin: United States.

The listed applications use one set per connection; this listing is for one kit. If worn, corroded, or broken exhaust flange hardware is causing a leak or a loose joint, this replaces it. Confirm your engine in the Buyer's Guide before ordering.

Frequently Asked Questions

What is this part?

It's the AP Exhaust Bolt and Spring Set (MPN 4678), a matched bolt-and-spring hardware kit for spring-loaded exhaust flange connections.

Does it fit my vehicle?

It's a direct-fit replacement across 164 listed applications, including many Honda, Acura, Nissan, Chrysler, Dodge, and Plymouth models. Check the Buyer's Guide tab for your exact year and engine.

What does the spring do?

The spring works with the bolt to help maintain tension at the exhaust flange connection, keeping the joint held together under heat and vibration.

How many sets do I need?

The listed applications use one set per connection, and this listing is for one kit. Order according to how many spring-loaded joints your exhaust uses.

When should I replace this hardware?

Signs it may need replacing include an exhaust leak, rattling, or a loose flange joint from worn, corroded, or broken bolts and springs. Diagnose the joint before replacing.

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