The Denso 5345 Iridium Spark Plug is a premium OE-grade replacement plug engineered for many Porsche models (911, Boxster, Cayman, Cayenne, Panamera) and the Audi TT RS. Its ultra-fine iridium tip provides a stable, focused spark for improved combustion efficiency, resulting in smoother idle, better fuel economy, and enhanced throttle response. This plug offers extended service life of up to 60,000 miles, reducing maintenance intervals.
Key Features & Benefits
- Iridium Construction: Ultra-fine 0.4mm iridium electrode ensures long life and consistent spark.
- Improved Ignition: Provides a stronger, more reliable spark for better power and fuel economy.
- OE Replacement: Direct fit for the listed Porsche and Audi applications without any modifications.
- Extended Service Life: Lasts up to 60,000 miles, far exceeding standard copper plugs.
- Pre-gapped: Each plug is pre-gapped for easy installation; always verify gap for your engine.
Vehicle Fitment
| Make | Model | Years | Engine |
|---|---|---|---|
| Porsche | 911 | 2009–2012 | 3.8H6 |
| Porsche | 911 | 2012–2016 | 3.8H6 |
| Porsche | Boxster | 2009–2012 | 3.4H6 |
| Porsche | Boxster | 2013–2016 | 3.4H6 |
| Porsche | Boxster | 2016 | 3.8H6 |
| Porsche | Cayman | 2009–2012 | 3.4H6 |
| Porsche | Cayman | 2013–2016 | 3.4H6 |
| Porsche | Cayman | 2014–2016 | 2.7H6 |
| Porsche | Cayman | 2016 | 3.8H6 |
| Porsche | Cayenne | 2008–2010 | 4.8V8 |
| Porsche | Cayenne | 2011–2016 | 4.8V8 |
| Porsche | Panamera | 2010–2016 | 4.8V8 |
| Porsche | Panamera | 2011–2014 | 3.6V6 |
| Porsche | Panamera | 2015 | 3.0V6 |
| Audi | TT RS Quattro | 2012 | 2.5L5 |
| Audi | TT RS Quattro | 2013 | 2.5L5 |
Installation Notes
Confirm spark plug gap per your vehicle’s specifications before installation.
About DENSO
Denso is a world-renowned manufacturer of OE and aftermarket ignition components, known for precision engineering and reliability.
This part also goes by the following cross reference.
Cross Reference Part Number:
Fits These Vehicles
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | 911 | 3.8H6 | 2009–2012 |
| Porsche | 911 | 3.6H6 | 2009–2012 |
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | 911 | 3.8H6 | 2012–2016 |
| Porsche | 911 | 3.4H6 | 2012–2016 |
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | Boxster | 3.4H6 | 2009–2012 |
| Porsche | Boxster | 2.9H6 | 2009–2012 |
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | Boxster | 3.4H6 | 2013–2016 |
| Porsche | Boxster | 2.7H6 | 2013–2016 |
| Porsche | Boxster | 3.8H6 | 2016–2016 |
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | Cayman | 3.4H6 | 2009–2012 |
| Porsche | Cayman | 2.9H6 | 2009–2012 |
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | Cayman | 3.4H6 | 2013–2016 |
| Porsche | Cayman | 2.7H6 | 2014–2016 |
| Porsche | Cayman | 3.8H6 | 2016–2016 |
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | Cayenne | 4.8V8 | 2008–2010 |
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | Cayenne | 4.8V8 | 2011–2016 |
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | Panamera | 4.8V8 | 2010–2016 |
| Porsche | Panamera | 3.6V6 | 2011–2014 |
| Porsche | Panamera | 3.0V6 | 2015–2015 |
| Make | Model | Engine | Years |
|---|---|---|---|
| Audi | TT RS Quattro | 2.5L5 | 2012–2012 |
| Audi | TT RS Quattro | 2.5L5 | 2013–2013 |