HomeIgnition > Hardware, Fasteners and FittingsStandard Ignition SPP121E Direct Ignition Coil Boot
Part #: SPP121E

Standard Ignition SPP121E Direct Ignition Coil Boot

⚙️ 51 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Saab and Subaru, 9-2X, Baja, Forester, Impreza, Legacy, Outback, WRX, and WRX STI
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Reliable Direct Ignition Coil Boot for Saab and Subaru Vehicles

The Standard Ignition SPP121E Direct Ignition Coil Boot is designed to provide a secure and efficient connection between the ignition coil and spark plug. Engineered for select Saab and Subaru models, this ignition coil boot ensures consistent performance and reliable ignition system operation.

  • Compatible with Saab 9-2X and Subaru models including Baja, Forester, Impreza, Legacy, Outback, WRX, and WRX STI
  • Direct ignition coil boot designed to maintain optimal electrical conductivity
  • Durable construction to withstand high temperatures and engine vibrations
  • Part number SPP121E for precise identification and fitment

Product Details and Compatibility

The Standard Ignition SPP121E ignition coil boot is specifically engineered for direct ignition systems found in various Saab and Subaru vehicles. This part ensures a tight seal and proper electrical insulation between the ignition coil and spark plug, which is critical for efficient engine performance. Compatible with multiple Subaru models such as the Forester, Impreza, Legacy, Outback, WRX, and WRX STI, as well as the Saab 9-2X, this coil boot meets OEM specifications for fit and function.

Common Applications and Problem Resolution

  • Restores proper ignition coil to spark plug connection
  • Eliminates misfires caused by worn or damaged coil boots
  • Prevents electrical arcing and ignition system failures
  • Helps maintain engine performance and fuel efficiency
  • Reduces risk of engine hesitation or rough idling

Installation Notes and Tips

When installing the Standard Ignition SPP121E coil boot, ensure the ignition coil and spark plug are clean and free of debris. Carefully seat the boot to avoid damage and confirm a snug fit to maintain electrical continuity. It is recommended to inspect the ignition coil and spark plug condition during replacement to ensure optimal system performance.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The SPP121E ignition coil boot undergoes rigorous quality control to ensure consistent fit and function. Warranty coverage details should be confirmed with the product documentation or supplier.

This part fits 51 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2020SubaruWRX STI2.5LH4N/A
2019SubaruWRX STI2.5LH4N/A
2018SubaruWRX STI2.5LH4N/A
2017SubaruWRX STI2.5LH4N/A
2016SubaruWRX2.5LH4N/A
2016SubaruWRX STI2.5LH4N/A
2015SubaruWRX2.5LH4N/A
2015SubaruWRX STI2.5LH4N/A
2014SubaruImpreza2.5LH4N/A
2014SubaruWRX2.5LH4N/A
2014SubaruWRX STI2.5LH4N/A
2013SubaruForester2.5LH4N/A
2013SubaruImpreza2.5LH4N/A
2013SubaruWRX2.5LH4N/A
2013SubaruWRX STI2.5LH4N/A
2012SubaruForester2.5LH4N/A
2012SubaruImpreza2.5LH4N/A
2012SubaruLegacy2.5LH4N/A
2012SubaruWRX2.5LH4N/A
2011SubaruForester2.5LH4N/A
2011SubaruImpreza2.5LH4N/A
2011SubaruLegacy2.5LH4N/A
2010SubaruForester2.5LH4N/A
2010SubaruImpreza2.5LH4N/A
2010SubaruLegacy2.5LH4N/A
2009SubaruForester2.5LH4N/A
2009SubaruImpreza2.5LH4N/A
2009SubaruLegacy2.5LH4N/A
2009SubaruOutback2.5LH4N/A
2008SubaruForester2.5LH4N/A
2008SubaruImpreza2.5LH4N/A
2008SubaruLegacy2.5LH4N/A
2008SubaruOutback2.5LH4N/A
2007SubaruForester2.5LH4N/A
2007SubaruImpreza2.5LH4N/A
2007SubaruLegacy2.5LH4N/A
2007SubaruOutback2.5LH4N/A
2006Saab9-2X2.5LH4N/A
2006SubaruBaja2.5LH4N/A
2006SubaruForester2.5LH4N/A
2006SubaruImpreza2.5LH4N/A
2006SubaruLegacy2.5LH4N/A
2006SubaruOutback2.5LH4N/A
2005SubaruBaja2.5LH4N/A
2005SubaruForester2.5LH4N/A
2005SubaruImpreza2.5LH4N/A
2005SubaruLegacy2.5LH4N/A
2005SubaruOutback2.5LH4N/A
2004SubaruBaja2.5LH4N/A
2004SubaruForester2.5LH4N/A
2004SubaruImpreza2.5LH4N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

SPB184SPP121E

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.