Walker
ThunderSpark

Walker 921-2031 Ignition Coil

Brand Walker 921-2031
Product line ThunderSpark
Fits Honda · 4 vehicles

ThunderSpark line. Ignition coil from Walker's performance-focused product family.

Ignition coil. Delivers the spark energy needed for reliable engine ignition.

$41.03Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Order total $41.03
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker ThunderSpark Ignition Coil for Honda Civic

Walker ThunderSpark ignition coil 921-2031 is a direct-fit ignition coil for select Honda Civic applications. It is listed for 2012 Honda Civic, front, and 2003-2005 Honda Civic, front, giving buyers a fitment-focused replacement option for common ignition service needs.

Key Features

  • Walker ThunderSpark product line ignition coil
  • Part number 921-2031 for easy identification
  • Fits 2012 Honda Civic, front
  • Fits 2003-2005 Honda Civic, front
  • Built for ignition system replacement on listed Civic applications

Product Details

The Walker ThunderSpark line is positioned for ignition service parts that match specific vehicle applications. This ignition coil 921-2031 is cataloged for Honda Civic models in the 2003-2005 and 2012 model years, with front-position fitment noted in the listing. Use this part when replacing a failed coil on the exact Civic applications shown in the fitment data. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It May Address

  • Engine misfire on a listed Honda Civic application
  • Rough idle related to weak ignition output
  • Hard starting caused by coil failure
  • Loss of power under load from inconsistent spark delivery
  • Check engine light tied to ignition coil faults

Installation Notes and Tips

Verify the year, model, and front-position fitment before installation. Inspect the coil connector, spark plug condition, and surrounding ignition components during service. Confirm the part number 921-2031 matches the vehicle application before replacing the original coil.

Quality Assurance

Walker ThunderSpark parts are cataloged for specific vehicle fitment, helping ensure the replacement matches the listed Honda Civic applications.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2012HondaCivic1.5LL4N/AFront; ThunderSpark
2005HondaCivic1.3LL4N/AFront; ThunderSpark
2004HondaCivic1.3LL4N/AFront; ThunderSpark
2003HondaCivic1.3LL4N/AFront; ThunderSpark