What spark plugs does a 2019 CX-5 use?
PE5R-18-110 or PE5S-18-110 on the 2.0 and 2.5. PY8V-18-110 on the 2.5 turbo. The book says to consult a dealer and does not print a gap.
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In-depth guide
2019 Mazda CX-5
2019 CX-5 gasoline plugs are Mazda PE5R-18-110 or PE5S-18-110 on the 2.0 and 2.5, and PY8V-18-110 on the 2.5 turbo. No gap is printed.
| Item | Figure |
|---|---|
| SKYACTIV-G 2.0 and 2.5 | Mazda Genuine spark plug PE5R-18-110 or PE5S-18-110. The footnote says to consult a dealer. No gap is printed. |
| SKYACTIV-G 2.5T | Mazda Genuine spark plug PY8V-18-110. No gap is printed. |
| U.S. and Puerto Rico interval | 2.5 turbo: every 64,000 km (40,000 miles). Other SKYACTIV-G: every 120,000 km (75,000 miles). |
| Canada interval | The Canada chart uses the same two distances: 40,000 miles on the 2.5 turbo and 75,000 miles on the other SKYACTIV-G engines. |
| Iridium note | Do not clean the iridium plugs with a wire brush. The coating on the iridium alloy and platinum tips can be damaged. |
Source: owner's manual / last verified 2026-10-16 (2019 Mazda CX-5 Owner's Manual, form 8HH4-EA-19A, June 2022 Print 3, spark plugs and scheduled maintenance (opens in a new tab)).
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2019 Mazda CX-5 Owner's Manual, form 8HH4-EA-19A, June 2022 Print 3, spark plugs and scheduled maintenance (opens in a new tab), Mazda Motor Corporation, published 2022-06-01, read 2026-10-16.
| Item | Figure | Where it comes from |
|---|---|---|
| SKYACTIV-G 2.0 and 2.5 | Mazda Genuine spark plug PE5R-18-110 or PE5S-18-110. The footnote says to consult a dealer. No gap is printed. | Electrical system, spark plug |
| SKYACTIV-G 2.5T | Mazda Genuine spark plug PY8V-18-110. No gap is printed. | Electrical system, spark plug |
| U.S. and Puerto Rico interval | 2.5 turbo: every 64,000 km (40,000 miles). Other SKYACTIV-G: every 120,000 km (75,000 miles). | Schedule 1 |
| Canada interval | The Canada chart uses the same two distances: 40,000 miles on the 2.5 turbo and 75,000 miles on the other SKYACTIV-G engines. | Canada residents scheduled maintenance |
| Iridium note | Do not clean the iridium plugs with a wire brush. The coating on the iridium alloy and platinum tips can be damaged. | Electrical system caution |
2.0 and 2.5 are PE5R-18-110 or PE5S-18-110. The 2.5 turbo is PY8V-18-110.
The caution says a wire brush can damage the iridium and platinum coating. No gap is in the table.
40,000 miles for the turbo and 75,000 miles for the other gasoline engines. The footnote sends the details to a dealer.
Oil viscosity for these engines is on the oil guide. The turbo's 5W-30 is not a spark-plug specification.
The diesel particulate filter and glow-plug notes in the maintenance charts are not gasoline plug intervals.
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Part
Mazda PE5R-18-110 spark plug
One of the two genuine numbers for the SKYACTIV-G 2.0 and 2.5. Not the turbo plug.
2019 CX-5 spark plug table (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
Part
Mazda PE5S-18-110 spark plug
The other genuine number for the SKYACTIV-G 2.0 and 2.5.
2019 CX-5 spark plug table (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
Part
Mazda PY8V-18-110 spark plug
SKYACTIV-G 2.5 turbo only.
2019 CX-5 turbo spark plug (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
PE5R-18-110 or PE5S-18-110 on the 2.0 and 2.5. PY8V-18-110 on the 2.5 turbo. The book says to consult a dealer and does not print a gap.
Every 40,000 miles on the 2.5 turbo. Every 75,000 miles on the other SKYACTIV-G engines. The U.S. and Canada charts in this manual both print those distances.
This owner's manual does not print a firing order, so none is drawn.
The maintenance checklist is on the site now. The email list is not sending yet, so this box will not store an address.
These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.
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