HomeIgnition > Hardware, Fasteners and FittingsWalker 900-P2025 Coil Boot
Part #: 900-P2025

Walker 900-P2025 Coil Boot

ThunderCore-Ultra
6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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*Free return shipping only qualifies if our fitment verification tool is used.
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: Audi, A8 and A8 Quattro
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 Audi A8

The Walker ThunderCore-Ultra Coil Boot 900-P2025 is designed specifically for Audi A8 and A8 Quattro models. This coil boot ensures reliable ignition system performance by providing a secure connection between the ignition coil and spark plug.

  • Compatible with Audi A8 and A8 Quattro models
  • Part number 900-P2025 for precise identification
  • Part of the Walker ThunderCore-Ultra product line
  • Designed for ignition hardware, fasteners, and fittings
  • Durable construction for consistent electrical conductivity

About the Walker ThunderCore-Ultra Product Line

The ThunderCore-Ultra line from Walker focuses on ignition components engineered to meet the demands of modern vehicles. This product line emphasizes durability and reliable electrical performance, making it suitable for critical ignition system parts like coil boots. The 900-P2025 coil boot benefits from this focus, providing a dependable connection for Audi A8 ignition systems.

Detailed Product Description

The Walker 900-P2025 coil boot is an essential ignition component designed to maintain a secure and stable connection between the ignition coil and spark plug in Audi A8 and A8 Quattro vehicles. By ensuring proper insulation and electrical conductivity, this coil boot helps maintain engine performance and efficiency. Its construction supports resistance to heat and vibration, common in engine compartments, which helps prevent misfires and ignition failures.

Common Issues Addressed by This Coil Boot

  • Ignition misfires caused by poor coil-to-plug connection
  • Engine performance loss due to faulty ignition components
  • Electrical arcing and shorts in the ignition system
  • Vibration-related ignition coil disconnections
  • Wear and tear from heat exposure in the engine bay

Installation Notes and Tips

  • Ensure the ignition system is cool before installation
  • Verify compatibility with Audi A8 or A8 Quattro before replacing
  • Inspect the ignition coil and spark plug for wear during installation
  • Apply dielectric grease to improve electrical contact and prevent moisture intrusion
  • Securely seat the coil boot to avoid loose connections

Quality Assurance and Warranty

Walker maintains strict quality control standards for the ThunderCore-Ultra line, including the 900-P2025 coil boot. While specific warranty details are not provided, Walker products typically meet or exceed OEM specifications to ensure reliable performance in Audi A8 ignition systems.

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1999AudiA83.7LV8N/AThunderCore-Ultra
1999AudiA8 Quattro4.2LV8N/AThunderCore-Ultra
1998AudiA83.7LV8N/AThunderCore-Ultra
1998AudiA8 Quattro4.2LV8N/AThunderCore-Ultra
1997AudiA83.7LV8N/AThunderCore-Ultra
1997AudiA8 Quattro4.2LV8N/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.