Guided ignition and electrical lookup for professional sourcing teams Open Fitment Guide
Year-make-model workflow

NGK Fitment Guide and Cross Reference

Use this guide as a disciplined path for ignition and electrical selection. It is built for teams that need to match a vehicle, compare an OE or competitor reference, and prepare a request that another person can verify without guessing how the decision was made.

Select Vehicle

Cross-Reference a Part

Enter an OE, previous aftermarket, or competitor number when the original information is available. Treat the result as a starting point that still needs vehicle and engine confirmation.

Sample verification table

Keep the Evidence Beside the Recommendation

A useful fitment table shows what was matched and why. The example below demonstrates the level of traceability a team can include before a quote or catalog update moves forward.

Our Part No.OE ReferenceCompetitor X-RefFitsSystem
NGK-IR-001OE-SP-441Plug-A17Passenger gasoline, verified engine familySpark plug
NGK-CO-218OE-IC-908Coil-72Coil-on-plug ignition layoutIgnition coil
NGK-OX-312OE-O2-552Sensor-91Upstream oxygen sensor locationOxygen sensor
NGK-WR-084OE-WR-214Wire-28Distributor ignition service setPlug wire
NGK-IX-779OE-SP-779Iridium-X9Extended service interval familyIridium spark plug
NGK-EC-145OE-EL-145Elec-45Catalog review required before purchaseElectrical part

Full Catalog PDF

Use for broad ignition and electrical review before line planning.

Request file

Spark Plug Chart

Use for heat range and family conversations that need a chart reference.

Request file

Cross-Reference List

Use when OE or competitor numbers need to be documented beside vehicle data.

Request file

ACES and PIES Data

Use for catalog teams preparing structured listings and compatibility data.

Request file

Three-Step Selection Path

  1. Select Vehicle: capture year, make, model, engine, and service context before choosing a product family.
  2. Match or Cross-Reference: compare OE, competitor, or previous part numbers while keeping the vehicle path attached.
  3. Verify Fitment and Find Dealer: prepare the quote or sourcing request only after the part family and channel role are clear.

Bring NGK the details that prevent a second lookup.

A fitment request is strongest when it includes vehicle path, part family, OE reference if known, target quantity, and the business role behind the question. That gives support teams enough information to respond with a practical next step.

Send Fitment Details