Toyota Spark Plug Wires

Written by Jeremy Horelick
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When playing with your Toyota's spark plugs and wires, bear in mind that each model requires different sets. There's bound to be some interoperability between models of varying years, but the likelihood for error increases once you start moving from model to model. Your Supra's spark plug wires may fit your Corolla. On the other hand, they may also contribute to its mechanical failure.

How do you know which part numbers go with which models and years? The easiest route, apart from asking your dealer or mechanic directly, is to search for an information matrix online. Here, you can see at a glance all the variables that factor into your part choice, from make, model, and year to engine size and number of cylinders.

Choosing Toyota Spark Plug Wires

If you're shopping for Toyota spark plug wires over the phone, by mail, or online, you'll need a few key pieces of information. It's conceivable (nay, likely) that your parts rep can't recall every part number by make, model, and year, which means you'll need to identify your chassis. These typically have three-letter prefixes (e.g. ZZE or RZN) followed by two- or three-number codes.

You'll also need to furnish your sales clerk with more engine info than just your number of liters and cylinders. A Toyota Tacoma, for instance, might have different engine part numbers, even for models within the same year. A V6 or an "extended cab" may require a separate set of spark plug wires than a standard 4WD vehicle does. Even if these subtleties seem negligible, they can translate into noticeable performance differences.

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