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NGK Spark Plug - 5866

NGK Spark Plug - 5866

NGK
Availability:
5+ in stock, ready to be shipped

Ships same or next business day

SKU 5866
Save 59% Save 59%
$8.10
$8.10 - $8.10
$8.10
$3.31
$3.31 - $3.31
$3.31
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NGK

Spark Plug

This product also goes by these part numbers: 5866

This part also goes by the following cross reference.

Cross Reference Part Number: 5866

Fits These Vehicles 6 applications
Volkswagen
Make Model Engine Years
Volkswagen Vanagon 2.0H4 1980–1983
Volkswagen Transporter 2.0H4 1976–1979
Volkswagen Transporter 1.8H4 1974–1975
Volkswagen Campmobile 1.8H4 1974–1974
Volkswagen Transporter 1.7H4 1972–1973
Volkswagen Campmobile 1.7H4 1972–1973

Fitment data last updated: 2026-06-30

Fits 6 vehicle applications Check vehicle fitment before ordering View fitment

About this Spark Plug

The NGK 5866 spark plug ignites the air and fuel in each cylinder. Worn plugs make the ignition system work harder and can cause misfires, rough running and higher fuel consumption.

Frequently asked questions

How often should I replace spark plugs?

Follow the interval in your car's maintenance schedule. Turbocharged engines and tuned engines often need plugs replaced sooner than naturally aspirated ones.

What are the signs of worn spark plugs?

Misfires or a check-engine light, rough idle, hesitation under acceleration, harder starting, and reduced fuel economy.

Do I need to gap new spark plugs?

Many modern plugs come pre-gapped and some iridium or platinum plugs should not be adjusted. Check the gap against your car's specification and only adjust it carefully if the plug maker allows it.

Can I replace spark plugs myself?

On most engines, yes. Work on a cold engine, blow debris out of the plug wells before removing plugs, thread new plugs in by hand first, and tighten to the specified torque.

How do I make sure this spark plug fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

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