OEM Automotive Spark Plugs

Spark Plugs, Summarized

Spark plugs ignite the air-fuel mixture in each cylinder, so the right plug supports smooth idle, reliable starts, and efficient combustion. Genuine OEM spark plugs are matched to your engine's original specs. Check your Owner's Manual for the recommended replacement interval and confirm fitment by vehicle or VIN.

Few parts do as much work for their size as a spark plug. Every time your engine runs, each plug fires thousands of times per minute under heat and pressure. Tasca Parts offers genuine OEM spark plugs so you can replace them with the same type your engine was designed around.

What's Included in Our Spark Plug Category

This category covers factory replacement spark plugs for gasoline engines across many makes and models, including copper, platinum, and iridium designs depending on the application. Shopping for a Ford? You can also browse our dedicated Ford spark plugs page. A tune-up is also a good time to check your air filters, since clean intake air supports efficient combustion.

Why Your Engine Benefits From OEM Plugs

Spark plugs aren't one-size-fits-all. Thread size, reach, heat range, electrode material, and gap all have to suit the engine. The vehicle maker specifies OEM plugs for that combination, which helps the engine run as it was calibrated. Aftermarket plugs can differ in heat range or electrode design, and a mismatch may lead to rough running or premature wear. Genuine OEM keeps the variables consistent.

Picking the Right Spark Plug

Start with your engine, not just your model. The same vehicle can offer several engine options, each with a different plug. Keep these points in mind:

• Replace plugs as a full set rather than one at a time.
• Follow the replacement interval listed in your Owner's Manual.
• Check the recommended gap for your engine before installation, especially if the plug isn't pre-gapped.
• Inspect ignition coils or plug wires for wear while you're in there.

Checking Spark Plug Fitment

Engine size, model year, and fuel system can all change which spark plug is correct. Select your vehicle or enter your VIN to narrow results to compatible parts, then compare part numbers and product notes. Manufacturer updates can supersede part numbers, so review listing details carefully before ordering.

Spark Plug Takeaways

• Spark plugs ignite the air-fuel mixture in each cylinder.
• OEM plugs match your engine's factory heat range, reach, and electrode design.
• Choose plugs by engine, and replace them as a complete set.
• Confirm fitment using your vehicle details, part number, or VIN.

Spark Plug FAQs

How often should spark plugs be replaced?

It depends on the engine and plug type. Some plugs are rated for much longer service than others, so check your Owner's Manual for the recommended interval.

What are signs of worn spark plugs?

Rough idle, misfires, hard starting, hesitation, or reduced fuel economy can point to worn plugs, though other ignition or fuel issues can cause similar symptoms.

Can I use a different spark plug type than the original?

Sticking with the OEM-specified plug is the most reliable way to match your engine's design. A different heat range or material may not perform the same.