X4XZ Ignition Coil & Spark Plug Kit — 2013–2018 Mazda CX-5, 4 UF656 Coils + 4 93501 Double Iridium

This X4XZ kit includes four UF656 ignition coils and four 93501 double iridium spark plugs engineered to restore reliable ignition and smoother running in compatible Mazda models.

If your Mazda CX-5 or another compatible Mazda is showing signs of misfires, rough idle, or reduced fuel efficiency, worn coils and plugs are common culprits. This aftermarket kit is designed to match or improve on original equipment fit and function, combining durable materials in the coil with long-life double iridium electrodes in the plugs so you get consistent spark delivery and extended service intervals.

How will replacing coils and plugs affect drivability?

Swapping old coils and spark plugs for fresh components usually removes hesitation, reduces misfires, and helps the engine run more smoothly at idle and under load. Improved ignition timing consistency can also support better throttle response and steadier combustion across cylinders.

• Restores consistent spark to reduce misfires and power dips.
• Improves idle smoothness and engine responsiveness.
• Can lead to more stable fuel burn and modest efficiency gains.

What makes these plugs and coils different from worn OEM parts?

The spark plugs use a double iridium electrode design for a much longer service life and steady spark performance. The ignition coils feature quality materials, a stainless-steel spring, an internal ferrite suppressor to reduce radio-frequency interference, and a thermoplastic connector built to resist heat-related cracking.

• Double iridium plugs rated for extended service life and stable sparks.
• Coil spring and ferrite noise suppressor to prevent electrical interference.
• Heat-resistant connector for reliable long-term electrical contact.

Which vehicles does this X4XZ UF656 & 93501 kit fit?

This kit is intended for a range of Mazda models primarily from the 2012–2020 era; it's commonly used on Mazda3, Mazda6, Mazda CX-3, CX-5, and MX-5 Miata variants listed by year in the product information. Always verify compatibility with your VIN or vehicle application before purchase to ensure an exact match.

• Common fitment: 2013–2018 Mazda CX-5 (also fits certain 2012–2019 Mazda3 and other Mazda models).
• OEM/replace numbers include UF656 and 93501, plus several alternate part numbers for cross-reference.
• Refer to the product images and vehicle list to confirm fitment for your specific year and engine.

Who is this for? Drivers and independent mechanics who want a cost-effective way to replace four ignition coils and four durable spark plugs in compatible Mazda vehicles will find this X4XZ kit useful. It suits owners repairing misfire-related symptoms, performing scheduled ignition maintenance, or upgrading aging ignition components to improve reliability. The package contains four coils and four double iridium spark plugs, and while no printed manual is included, installation follows standard coil-and-plug replacement procedures. X4XZ also provides one-year product coverage and customer support to assist with fitment or post-purchase questions.