Mazda CX-5 Spark Plug Type

Choose the model year, engine and applicable equipment before ordering. The checked Mazda guides do not support one plug number, gap or tightening torque for every CX-5.

Quick answer

For example, Mazda lists PE5R-18-110 or PE5S-18-110 for the checked 2020 2.0L/2.5L gasoline engines, but PY8V-18-110 for the 2020 2.5T. The 2024 2.5L also changes with i-stop equipment. Use the table and the linked Mazda guide for your exact configuration.

Choose your CX-5 service manual

Mazda plug numbers in checked owner guides

These are year and engine examples, not a claim of continuous coverage for every year or trim. Confirm the engine and i-stop status on your vehicle. A seller's cross-reference or a similar-looking NGK number is not proof of the required Mazda specification.

Swipe the table left to see the plug number and source.

Checked vehicle	Mazda plug number	Source
2013 CX-5, 2.0L gasoline	PE01-18110 or PE02-18110	Mazda 2013 guide, Specifications
2017 CX-5, SKYACTIV-G 2.0 or 2.5	PE5R-18-110 or PE5S-18-110	Mazda 2017 guide, Electrical System
2020 CX-5, SKYACTIV-G 2.0 or 2.5	PE5R-18-110 or PE5S-18-110	Mazda 2020 guide, Electrical System
2020 CX-5, SKYACTIV-G 2.5T	PY8V-18-110	Mazda 2020 guide, Electrical System
2024 CX-5, 2.5L, U.S./Canada, with i-stop	P5SP-18110	Mazda 2024 guide, Electrical System
2024 CX-5, 2.5L, U.S./Canada, without i-stop	PE5R-18-110-A or PE5S-18-110	Mazda 2024 guide, Electrical System
2024 CX-5, SKYACTIV-G 2.5T	PY8V-18-110	Mazda 2024 guide, Electrical System

Open the vehicle-specific service information

The hosted 2020 CX-5 Signature VIN Y and 2024 Turbo Signature VIN Y specification leaves both list PY8V-18-110, matching Mazda's turbo guidance. The checked 2017 Sport FWD and 2024 Turbo Signature removal procedures each specify 15–20 N·m (12–14 ft-lb) for their named vehicles. Read the complete applicable procedure before removing or installing plugs; these examples do not establish torque for every CX-5.

The 2024 Mazda owner guide distinguishes 2.5L vehicles with and without i-stop, while the checked hosted 2024 VIN L/M specification leaves did not establish the i-stop plug. Do not infer that a VIN L/M archive leaf overrides the vehicle's i-stop equipment or the Mazda owner guide.

Replacement interval and gap

Mazda's 2024 CX-5 maintenance schedule specifies 40,000 miles for the 2.5T and 75,000 miles for the non-turbo gasoline engine. Check the schedule for your own year and market. The checked owner specifications do not establish a single gap or a universal “preset” instruction, so this page does not give one.

Compare plugs for the checked 2024 turbo example

This search uses Mazda's PY8V-18-110 number for the checked 2024 CX-5 2.5T Turbo Signature example. Search results are not verified-fit products. Confirm the part number, VIN and seller listing before buying; do not apply this search to a non-turbo or i-stop 2.5L.

Search PY8V-18-110 plugs

As an Amazon Associate, AllOEMManuals earns from qualifying purchases.