Autolite

Autolite 45 Copper Core Spark Plug

Part no. 45Ships in 1–3 business days
$9.39incl. GST

+ $10.00 NZ delivery for this item

Fit checked before dispatch

Listed for these vehicles – choose yours below to check the year and engine:

  • Ford: Cortina 1971–1982, Escort 1977–1981, Fairlane 1967–1976, Fairmont 1965–1976, Falcon 1960–1976, Mustang 1964–1973, Transit 1973–1976

Fitment data from Autolite, checked 6 Oct 2026.

Check it fits your vehicle

Not sure? with your rego or make, model and year.

Ask us to check fit

Tell us your vehicle and we'll confirm whether Autolite 45 Copper Core Spark Plug suits it – before you buy.

or

We only use these details to answer your fit question.

Make, model and year, or your rego. If the part doesn't suit, we'll email you before it ships. How fit checks work

Most engines need 4 or 6 – check your engine.

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The Autolite 45 is a copper core spark plug. The full copper core centre electrode draws heat away quickly for dependable performance in all operating conditions, and a copper-glass seal bonds the insulator and centre post for a leak-proof seal and full voltage at the gap. The Autolite 45 has a 18mm × 1.50 thread, .468" reach, 13/16" (21mm) hex and a listed gap of 1.1mm. Autolite plugs must be gapped before installation: check and set the gap to your engine's specification. Sold individually – order one per cylinder. Choose by part number: match the code on your old plugs, your owner's manual or Autolite's part finder.

Key features

  • Full copper core centre electrode
  • Copper-glass seal for a leak-proof fit
  • Ribbed insulator helps prevent spark leakage
  • 18mm × 1.50 thread, .468" reach
  • 13/16" (21mm) hex
  • Listed gap 1.1mm – set before fitting
  • Sold individually

What's in the box

1 × spark plug

FAQs

How do I know this is the right plug?

Match the Autolite part number on your existing plugs, in your owner's manual or from Autolite's official part finder. Keep to the plug your engine specifies – don't change heat range or reach. Add your vehicle when you order and we'll check it against Autolite's official application data before your order is sent.

Is there an NGK equivalent?

NGK's published cross-reference lists the Autolite 45 against NGK APR5FS. Always confirm against your vehicle's specified plug.

Do I need to set the gap?

Yes. Autolite states these plugs must be gapped before installation. Check the gap your engine needs (owner's manual or workshop manual) and adjust it with a proper gap tool.

How many do I need?

One per cylinder – most 4-cylinder engines need 4, V6 engines 6 and V8s 8.

Delivery: Dispatched in 1–3 business days; NZ delivery usually 2–7 business days after dispatch. Prices are in NZD and include GST.

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