• NGK 4786 Spark Plugs, Box of 4
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NGK

NGK 4786 Spark Plugs, Box of 4

NGK 4786 Spark Plugs, Box of 4

Part number: 9WKQL

$37.15 USD
$37.15 USD
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4786 Spark Plugs, Box of 4 by NGK. Ignition parts create and deliver the spark that lights the fuel in each cylinder. Part number: 4786..

Specifications

  • Brand: NGK
  • Part type: Ignition part
  • Part number: 4786.

Fitment

This listing does not name specific vehicles. Match the part number and the specifications with the part you are replacing.

What it does

Ignition parts are routine maintenance and among the easiest ways to restore smooth running. Electrical faults often show up as warning lights, rough running or no-start problems, and the right replacement part clears the cause rather than the symptom.

Installation & tips

  • Set the spark plug gap to your engine spec and do not over-torque plugs in aluminum heads.
  • Plug wires or boots: Old wires and boots crack.
  • Put the new part next to the old one and compare the shape, mounting points and connections before you install it.
  • Disconnect the battery before you unplug or splice any wiring, and test everything works before you refit trim panels.

FAQ

What is the part number of this ignition part?
4786. (NGK). Compare it with the number on your old part or in your parts catalog.

Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.

What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.

Before you order

  • Compare part number 4786. with your original part.
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NGK ignition part: what to know

Worn plugs, cracked wires and weak coils cause misfires, rough running and poor economy.

Fitment notes

  • Specs, lead time and warranty come from NGK and can change. The details above this guide are the latest we have.

Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.

Ask about fitment

What else to plan for

More for your car: Spark Plugs · All Spark Plugs · Batteries & electrical

Questions about ignition part

Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
How often should spark plugs be replaced?
Your maintenance schedule lists it; long-life plugs often go 60,000 to 100,000 miles.
Where do specs and warranty details come from?
From NGK. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.

Questions & answers

No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.

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