Walker
ThunderSpark

Walker 921-2144 Ignition Coil - Left

Brand Walker 921-2144
Position Left
Product line ThunderSpark
Fits Cadillac and Oldsmobile · 14 vehicles

Ignition coil. ThunderSpark line from Walker.

$162.68Free 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 $162.68
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 921-2144

Walker ThunderSpark ignition coil 921-2144 is a direct-fit ignition component for select Cadillac and Oldsmobile applications. It is built for vehicles that need consistent spark delivery to restore reliable engine operation and ignition performance.

Key Features

  • Walker ThunderSpark ignition coil for OE-style replacement service
  • Fits 2000-2003 Cadillac DeVille, left
  • Fits 2000-2003 Cadillac Seville, left
  • Fits 2001-2003 Oldsmobile Aurora, left
  • Fits 2000-2002 Cadillac Eldorado, left
  • Part number 921-2144 for catalog and fitment verification

Product Details

The ThunderSpark product line from Walker focuses on ignition service parts for specific vehicle applications. This ignition coil is listed for left-side fitment on Cadillac DeVille, Cadillac Seville, Cadillac Eldorado, and Oldsmobile Aurora models across the years shown, making it a targeted replacement for drivers searching for a Walker ignition coil 921-2144 for Cadillac DeVille or a Walker ThunderSpark coil for Oldsmobile Aurora. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It Can Help Address

  • Engine misfire caused by weak or inconsistent spark output
  • Hard starting related to ignition coil failure
  • Rough idle from degraded coil performance
  • Loss of power under load due to poor ignition delivery
  • Check engine light conditions tied to ignition coil faults

Installation Notes

Verify the vehicle year, model, and left-side application before installation. Confirm connector condition, inspect related ignition components, and clear diagnostic trouble codes after repair if required. Use the part number 921-2144 to match the correct Walker ThunderSpark ignition coil for the listed Cadillac and Oldsmobile fitments.

Quality Assurance

Walker ThunderSpark is the identified product line for this ignition coil, and the listed fitment data should be used to confirm application before purchase.

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2003CadillacDeVille4.6LV8LeftThunderSpark
2003CadillacSeville4.6LV8LeftThunderSpark
2003OldsmobileAurora4.0LV8N/ALeft; ThunderSpark
2002CadillacDeVille4.6LV8LeftThunderSpark
2002CadillacEldorado4.6LV8LeftThunderSpark
2002CadillacSeville4.6LV8LeftThunderSpark
2002OldsmobileAurora4.0LV8N/ALeft; ThunderSpark
2001CadillacDeVille4.6LV8LeftThunderSpark
2001CadillacEldorado4.6LV8LeftThunderSpark
2001CadillacSeville4.6LV8LeftThunderSpark
2001OldsmobileAurora4.0LV8N/ALeft; ThunderSpark
2000CadillacDeVille4.6LV8LeftThunderSpark
2000CadillacEldorado4.6LV8LeftThunderSpark
2000CadillacSeville4.6LV8LeftThunderSpark