The 2021 Toyota Yaris has 15 ignition parts with verified fitment on this page — 4 part types and 6 brands, covering both the 1.5L L4 and the 1.6L L3 Turbocharged. Each part includes a manufacturer part number and application notes.
The ignition system on the 2021 Toyota Yaris delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Camshaft Position Sensor (6 parts), Ignition Coil (5 parts) and Crankshaft Position Sensor (2 parts). The other 1 part type covers the remaining 2 parts.
The 2021 Toyota Yaris was sold with both the 1.5L L4 and the 1.6L L3 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
6 brands supply ignition parts for the 2021 Toyota Yaris, led by STANDARD MOTOR PRODUCTS (5 parts), WALKER PRODUCTS (5 parts) and FVP (2 parts), plus 3 more brands. Quality grades include Economy and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Toyota Yaris. 1 part has it: STANDARD MOTOR PRODUCTS PC559T (Camshaft Position Sensor). Each part number opens a page with every vehicle that part fits.
Camshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 1.5L L4 | PC559T | 🇲🇽 MX | T-Series | View on Amazon |
| HOLSTEIN Fits: 1.5L L4 | 2CAM0057 | 🇲🇽 MX | View on Amazon | |
| SKP Fits: 1.5L L4 | SKPC559 | 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.5L L4 | PC559 | 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Fits: 1.5L L4 | 2351343 | 🇲🇽 MX | Sensor Only | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Fits: 1.6L L3 Turbocharged | 2351872 | 🇲🇽 MX | Sensor Only | View on Amazon |
This table covers the sensors that report camshaft position to the ECU. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
6 Camshaft Position Sensor parts for the 2021 Toyota Yaris come from 4 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, HOLSTEIN and 1 other brand. The "Popular" part is STANDARD MOTOR PRODUCTS PC559T.
The Economy section lists 3 options from STANDARD MOTOR PRODUCTS, HOLSTEIN and SKP — the catalog's value-priced group. STANDARD MOTOR PRODUCTS PC559T is listed in this group.
In the Standard Replacement grade, STANDARD MOTOR PRODUCTS and WALKER PRODUCTS supply 2 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS PC559.
1 further part sits outside the graded sections, with the same engine-level match.
Part numbers include STANDARD MOTOR PRODUCTS PC559T, HOLSTEIN 2CAM0057 and SKP SKPC559, among others listed above.
Crankshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.5L L4 | PC963 | 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Fits: 1.5L L4 | 2351175 | 🇲🇽 MX | Sensor Only | View on Amazon |
This table covers the sensors that report crankshaft position and engine speed. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.
2 Crankshaft Position Sensor parts for the 2021 Toyota Yaris come from 2 brands — STANDARD MOTOR PRODUCTS and WALKER PRODUCTS.
Listed part numbers: STANDARD MOTOR PRODUCTS PC963 and WALKER PRODUCTS 2351175.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 1.5L L4 | 50285 | 🇲🇽 MX | View on Amazon | |
| FVP Fits: 1.5L L4 | UF656F | 🇲🇽 MX | US ModelsAlternate Replacement Part | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Fits: 1.5L L4 | 9212333 | 🇲🇽 MX | Single Coil | View on Amazon |
| WELLS Fits: 1.5L L4 | 5C2281 | 🇲🇽 MX | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Fits: 1.6L L3 Turbocharged | 9212364 | 🇲🇽 MX | Single Coil | View on Amazon |
This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off.
5 Ignition Coil parts for the 2021 Toyota Yaris come from 3 brands — FVP, WALKER PRODUCTS and WELLS.
The Economy section: 2 options from FVP. FVP 50285 is listed in this group.
Standard Replacement: 2 parts, from WALKER PRODUCTS and WELLS. A representative part number is WALKER PRODUCTS 9212333.
1 further part sits outside the graded sections, with the same engine-level match.
Listed part numbers: FVP 50285, FVP UF656F and WALKER PRODUCTS 9212333, plus the other parts above.
Spark Plug / Ignition Coil Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.5L L4 | SPP234E | 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 1.5L L4 | 34241 | 🇲🇽 MX | View on Amazon |
This table covers the silicone and rubber boots that insulate the coil-to-plug spark path. Typical signs include a misfire in the rain, carbon tracking on the boot, or a snap when you pop the coil off. Replace boots as a set on a high-mileage engine; one cracked boot will take the coil with it.
2 Spark Plug / Ignition Coil Boot parts for the 2021 Toyota Yaris come from STANDARD MOTOR PRODUCTS.
Part numbers include STANDARD MOTOR PRODUCTS SPP234E and STANDARD MOTOR PRODUCTS 34241.
Buying Ignition Parts for a 2021 Toyota Yaris
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Every ignition part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Camshaft Position Sensor and Ignition Coil .
Frequently Asked Questions
How many ignition parts fit the 2021 Toyota Yaris?
Our catalog currently lists 15 ignition parts for the 2021 Toyota Yaris across 4 subcategories and 6 brands, covering both the 1.5L L4 and the 1.6L L3 Turbocharged. Each part is matched to the engine(s) it fits.
Do ignition parts differ between 2021 Toyota Yaris engines?
Yes. Every ignition part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of ignition problems on a 2021 Toyota Yaris?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Toyota Yaris was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 Toyota Yaris?
First match the engine — each row shows which engine(s) the part fits. Then gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Toyota Yaris
Ignition Parts for Other Toyota Yaris Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.