HomeIgnition > Hardware, Fasteners and FittingsWalker 900-P2108 Coil Boot
Part #: 900-P2108

Walker 900-P2108 Coil Boot

ThunderCore-Ultra
⚙️ 3 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦ThunderCore-Ultra
🚗Fitment: Subaru, Impreza
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker ThunderCore-Ultra Coil Boot for Subaru Impreza

The Walker ThunderCore-Ultra Coil Boot 900-P2108 is designed specifically for ignition system maintenance on Subaru Impreza models. This coil boot ensures reliable electrical insulation and connection between the ignition coil and spark plug, contributing to consistent engine performance.

  • Compatible with Subaru Impreza ignition systems
  • Part number 900-P2108 for precise identification
  • Constructed to provide secure electrical insulation
  • Designed to withstand high temperatures and engine vibrations
  • Part of the Walker ThunderCore-Ultra product line

About the Walker ThunderCore-Ultra Product Line

The ThunderCore-Ultra line by Walker focuses on ignition hardware components engineered for durability and reliable performance. Products in this line, including the 900-P2108 coil boot, are developed to meet the specific requirements of vehicle ignition systems, ensuring proper fitment and function. This line supports maintenance and repair tasks by providing components that maintain ignition integrity under demanding conditions.

Product Details and Application

The Walker 900-P2108 coil boot is an essential ignition component compatible with Subaru Impreza models. It serves as the insulating connector between the ignition coil and spark plug, preventing electrical arcing and ensuring efficient spark delivery. Proper function of this coil boot helps maintain engine smoothness and fuel efficiency by supporting consistent ignition timing and spark quality.

Common Issues Addressed by This Coil Boot

  • Misfires caused by poor ignition coil to spark plug connection
  • Electrical arcing due to damaged or worn coil boots
  • Engine performance issues related to ignition system faults
  • Reduced fuel efficiency from inconsistent spark delivery
  • Difficulty starting the engine due to ignition component failure

Installation Notes and Tips

When installing the Walker 900-P2108 coil boot on a Subaru Impreza, ensure the ignition system is cool to avoid burns. Carefully remove the old coil boot without damaging the ignition coil or spark plug. Confirm the new coil boot seats firmly on both the coil and spark plug terminals to maintain a secure electrical connection. Use dielectric grease if recommended to improve seal and prevent moisture intrusion.

Quality Assurance and Warranty

Walker manufactures the 900-P2108 coil boot to meet industry standards for ignition hardware. While specific warranty details are not provided, Walker products typically undergo quality control processes to ensure durability and fitment accuracy. Using genuine Walker parts helps maintain the integrity of the Subaru Impreza ignition system.

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005SubaruImpreza2.0LH4N/AThunderCore-Ultra
2004SubaruImpreza2.0LH4N/AThunderCore-Ultra
2003SubaruImpreza2.0LH4N/AThunderCore-Ultra

* 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:

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