Your cart

GENUINE MAZDA OEM Spark Plugs for Mazda RX8 (Series 1 & 2, 2003-2012)

Genuine Mazda RX8 spark plugs restore correct leading and trailing ignition, supporting stable starting, idle quality and Renesis combustion.

Closed genuine Mazda RX8 spark plugs box viewed from above on wooden table

$290

RX8 spark plugs are a genuine Mazda four-plug ignition set for Renesis engines. They suit Series 1 and Series 2 owners replacing worn leading and trailing plugs. Two RE7C-L leading plugs and two RE9B-T trailing plugs provide the intended components for each ignition position. This is a practical choice for returning an engine to a known ignition-service baseline.

RX8 Spark Plugs Set Features

  • Each four-plug set includes two RE7C-L leading plugs and two RE9B-T trailing plugs.
  • Separate plug types match the Renesis ignition layout, which uses dedicated leading and trailing positions.
  • Genuine Mazda specification provides factory-correct fitment across RX8 Series 1 and Series 2 models.
  • Integrated interference suppression supports clean electrical operation within the ignition system.
  • New components replace plugs with an unknown service history, making maintenance planning more straightforward.
  • Finally, keeping the required leading and trailing types together supports accurate plug replacement during routine servicing.

For RX8 enthusiasts, this Mazda RX8 spark plug set helps restore the correct ignition arrangement without mixing plug types. Fresh genuine plugs provide a dependable reference point when investigating hard starting, uneven idle, or an overdue ignition service. Correct placement matters because leading and trailing plugs perform different roles in the Renesis ignition system.

Genuine Mazda RX8 spark plugs are a sensible fit for owners who value known-condition service parts over used items of uncertain age. Pair them with a check of the air-metering system, and replace a faulty GENUINE MAZDA OEM MAF Sensor where required. See Mazda Australia for official Mazda ownership information.

Additional information

RX8 Model

,

SKU OM-SPL-S1S2 Categories , Types , , Brand:

Related RX8 Upgrades

This rotary spark plugs is one of the best Mazda RX-8 upgrades you can make to your Series 1 (2003-2008) or Series 2 (2009-2012). Engine tune-up parts are among the top OEM mods you can buy from MAZDA for owners who want better performance and reliability from their RX8. If you are looking for rx8 spark plugs for sale in Brisbane (QLD), Sydney (NSW), Melbourne (VIC), Canberra (ACT), Adelaide (SA), Darwin (NT) or Perth (WA), you’ll find high-quality Japanese Electrical upgrades at RX8 Upgrades.

Frequently Asked Questions

Do these genuine Mazda spark plugs fit both Series 1 and Series 2 RX8 models?

This genuine Mazda RX8 spark plug set is specified for Series 1 RX8 models from 2003-2008 and Series 2 RX8 models from 2009-2012.

What spark plugs are included in this RX8 set?

This genuine Mazda RX8 spark plug set contains four plugs: two RE7C-L leading plugs and two RE9B-T trailing plugs.

Why does the RX8 use different leading and trailing spark plugs?

The RX8 Renesis ignition layout uses separate leading and trailing plug positions. This genuine Mazda set supplies the intended RE7C-L leading and RE9B-T trailing plugs for those respective positions.

Can I replace all four RX8 spark plugs at the same time?

Yes. This product is a complete four-plug genuine Mazda set, allowing the two leading and two trailing RX8 spark plugs to be replaced together as part of ignition servicing.

Which plugs go in the leading and trailing positions on an RX8?

The genuine Mazda RX8 set includes RE7C-L plugs for the leading positions and RE9B-T plugs for the trailing positions. Keeping these plug types in their correct positions matches the Renesis ignition layout.

What is the benefit of fitting new genuine Mazda RX8 spark plugs?

New genuine Mazda RX8 spark plugs provide a known starting point when replacing plugs with an unknown service history. The correct leading and trailing pairing supports stable combustion, starting and idle quality.

Do these RX8 spark plugs have interference suppression?

Yes. These genuine Mazda RX8 spark plugs include integrated interference suppression to support clean electrical operation within the ignition system.