PRODUCT DETAILS
Honda OEM EGR Pipe Upper Gasket A - L15A / LEA1 / J35Y6 Engines
Your CR-Z or Fit or Odyssey is running rough and you're smelling exhaust fumes in the engine bay. The EGR pipe's leaking at the upper connection. The gasket that seals the pipe to the engine block is failing. Exhaust gas is escaping where it shouldn't and the EGR system can't function right. This is genuine Honda OEM part 18716-RB0-G01. It's the upper gasket that seals the EGR pipe connection on L15A, LEA1, and J35Y6 engines. The gasket sits between the pipe and the engine and compresses under bolt pressure to create a seal. When it fails exhaust leaks out. You're getting rough running. You're getting fault codes. You're getting smells coming from under the hood. Replace the gasket when the EGR pipe's leaking. You're pulling the intake manifold area to get at this gasket anyway so do it right and stop the leak completely.
Here's Why EGR Gaskets Fail
The EGR pipe carries hot exhaust gas from the exhaust manifold back into the intake manifold to reduce emissions. The upper gasket seals where the pipe connects to the engine block. That connection's dealing with heat cycling constantly. Exhaust heat. Coolant heat. Temperature swings from cold starts to full operating temperature. The rubber gasket gets brittle over time. It loses elasticity. It cracks. The seal fails. Hot exhaust starts leaking out around the gasket. The smell gets stronger. The leak gets worse. Sometimes you only smell it under hard acceleration when the EGR flow increases. Sometimes it's constant whenever the engine's running. Either way the gasket's letting exhaust out that's supposed to be flowing through the intake manifold. Replace the gasket and the leak stops.
EGR Leaks Cause Performance Problems - Don't Ignore Them
When the EGR gasket fails the system can't regulate exhaust gas flow correctly. The engine gets too much exhaust or not enough depending on the leak severity. You're getting rough idle. The engine's surging. You're getting hesitation on acceleration. Sometimes you're getting fault codes for EGR system problems. We've seen people ignore exhaust smells thinking it's something else. Weeks go by. The leak gets worse. The engine's running rough all the time. They finally check the EGR pipe and find it pouring exhaust. By then the leak's been running for so long carbon's built up inside the system. Don't wait. If you're smelling exhaust from the engine bay and it's not coming from the tailpipe it's probably the EGR gasket. Replace it before the rough running gets worse.
Pull The Manifold Cover - Replace The Gasket While You're In There
Getting to this gasket means you're removing intake manifold covers and the EGR pipe connection. It's not the worst job but you're already committed to the work. We've seen people pull the pipe, clean up the leak, wipe it dry, and reinstall with the same gasket thinking it'll hold. A week later the leak's back because the gasket never sealed in the first place. Don't do that. The gasket's the problem. The old rubber won't seal anymore. Replace it with a new OEM gasket. You're already in there. Five extra minutes and five dollars of parts and you've fixed the actual problem instead of just cleaning around it.
Honda OEM Gasket - Engine-Spec Material
This is genuine Honda OEM part 18716-RB0-G01. It's the upper EGR pipe gasket Honda installs on L15A, LEA1, and J35Y6 engines at the factory. The rubber compound is engineered for exhaust heat and pressure. The dimensions match the pipe connection exactly. It compresses and seals the way it's supposed to seal. Aftermarket EGR gaskets are cheaper. Some are fine. Some are the wrong thickness. We've seen cheap gaskets that don't compress properly. The pipe still leaks around them because there's a gap. We've seen aftermarket gaskets made from rubber that hardens faster in heat. They crack after a few months. The EGR system is critical for emissions and engine performance. It's not where you use generic gaskets and hope they work. Buy the Honda gasket. It's the right spec for your engine. It seals correctly. You install it once and the leak stops.
What You Get
- Honda OEM EGR pipe upper gasket A - part number 18716-RB0-G01
- Fits L15A, LEA1, J35Y6 engines
- Genuine Honda gasket - not aftermarket
- Seals EGR pipe to engine connection
- Direct replacement
- One gasket per order
Fits These Cars
- 2011-2016 Honda CR-Z
- 2009-2013 Honda Fit
- 2010-2014 Honda Insight
- 2018-2026 Honda Odyssey
- 2019-2025 Honda Passport
- 2016-2022 Honda Pilot
- 2017-2026 Honda Ridgeline
Note: EGR pipe upper gasket A for L15A, LEA1, J35Y6 engines. Genuine Honda OEM part 18716-RB0-G01. Seals EGR pipe connection to engine block. Failed gasket causes exhaust gas leaking from pipe, rough idle, surging, hesitation on acceleration, exhaust smell in engine bay, EGR fault codes. Replace when EGR pipe leaking. Do not reuse old gasket (rubber loses elasticity and compression). Pull intake manifold covers and EGR pipe to access gasket. Replace while pipe is already removed (labor savings). Clean gasket seating surfaces on engine block and pipe before installing new gasket. Ensure proper bolt torque per Honda specification (do not overtighten). One gasket per order.