The 2018 Toyota Prius C has 59 ignition parts with verified fitment on this page — 5 part types and 24 brands, covering the 1.5L L4 ELECTRIC/GAS engine. Each part includes a manufacturer part number and application notes.
The ignition system on the 2018 Toyota Prius C delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Ignition Coil (20 parts), Spark Plug (15 parts) and Camshaft Position Sensor (12 parts). The other 2 part types cover the remaining 12 parts.
The 2018 Toyota Prius C came with a single engine, the 1.5L L4 ELECTRIC/GAS, and every part is verified against it.
24 brands supply ignition parts for the 2018 Toyota Prius C, led by STANDARD MOTOR PRODUCTS (6 parts), DENSO (6 parts) and WALKER PRODUCTS (5 parts), plus 21 more brands. Quality grades include Standard Replacement, Economy and Iridium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Toyota Prius C. 12 parts have it, including ULTRA-POWER 5S12221 (Camshaft Position Sensor) and SPECTRA PREMIUM S10121 (Crankshaft Position Sensor). Each part number opens a page with every vehicle that part fits.
Camshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER Popular | 5S12221 | 🇺🇸 US 🇨🇦 CA | RELEARN PROCEDURE REQUIRED, CONSULT YOUR FACTORY SERVICE INFORMATION RESOURCE FOR ADDITIONAL INFORMATION | View on Amazon |
| DORMAN | 907865 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HOLSTEIN | 2CAM0138 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Body code NHP10 | View on Amazon |
| PRENCO | 4E1140 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS | CAM116 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PC407 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS Popular | 2351341 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| BECK/ARNLEY | 1800278 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DELPHI | SS10938 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| DENSO | 1961111 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Engine Camshaft Position Sensor | View on Amazon |
| NTK | EC0071 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS | 5S12221 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Bracket Included: No | 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.
12 Camshaft Position Sensor parts for the 2018 Toyota Prius C come from 12 brands — ULTRA-POWER, DORMAN, HOLSTEIN and 9 other brands. The "Popular" part is ULTRA-POWER 5S12221.
The Economy section lists 5 options from ULTRA-POWER, DORMAN, HOLSTEIN and 2 other brands — the catalog's value-priced group. ULTRA-POWER 5S12221 is listed in this group.
In the Standard Replacement grade, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, BECK/ARNLEY and 4 other brands supply 7 parts: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS PC407.
Crankshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Popular | S10121 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| HOLSTEIN | 2CRK0264 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Body code NHP10 | View on Amazon |
| PRENCO | 4D1259 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PC271 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ASTEMO / HITACHI | CPS0099 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BECK/ARNLEY | 1800307 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DELPHI | SS10254 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NTK | EH0321 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS | 2351175 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only | View on Amazon |
| WELLS | 5S1904 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Body Diameter: 0.700 In | 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.
10 Crankshaft Position Sensor parts for the 2018 Toyota Prius C come from 10 brands — SPECTRA PREMIUM, HOLSTEIN, PRENCO and 7 other brands. The "Popular" part is SPECTRA PREMIUM S10121.
The Economy section: 3 options from SPECTRA PREMIUM, HOLSTEIN and PRENCO. SPECTRA PREMIUM S10121 is listed in this group.
Standard Replacement: 7 parts, from STANDARD MOTOR PRODUCTS, ASTEMO / HITACHI, BECK/ARNLEY and 4 other brands. A representative part number is STANDARD MOTOR PRODUCTS PC271.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | UF316F | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ULTRA-POWER Popular | UF316 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| B&B | BB2316 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BWD/NIEHOFF | E346 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HOLSTEIN | 2IGC0238 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| PRENCO | 368039 | 🇺🇸 US 🇨🇦 CA | Includes 36-2123 Boot Kit | View on Amazon |
| SPECTRA PREMIUM | C605 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ignition Coil Mounts to Cylinder Head | View on Amazon |
| STANDARD MOTOR PRODUCTS | UF316T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
Full Service Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS | 92192034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Service Kit | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ASTEMO / HITACHI Popular | IGC0139 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Coil On Plug IgnitionCoil Type: Individual | View on Amazon |
| DELPHI | GN10312 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO Popular | 6731306 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Direct Ignition Coil or Stick Coil | View on Amazon |
| BECK/ARNLEY | 1788546 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| BOSCH | 0986AG0519 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| NGK | 48668 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | UF316 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS | COP306 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Body code NHP10 | View on Amazon |
| WALKER PRODUCTS | 9212034 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Single Coil | View on Amazon |
| WALKER PRODUCTS | 92841304 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Coil Set | View on Amazon |
| WELLS | 5C1293 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Requires External Resistor: YES | 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.
20 Ignition Coil parts for the 2018 Toyota Prius C come from 17 brands — WALKER PRODUCTS, STANDARD MOTOR PRODUCTS, FVP and 14 other brands. The "Popular" part is FVP UF316F.
The Economy section: 8 options from FVP, ULTRA-POWER, B&B and 5 other brands. FVP UF316F is listed in this group.
The Full Service Kit section lists 1 option from WALKER PRODUCTS — grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. WALKER PRODUCTS 92192034 is listed in this group.
In the Premium grade, ASTEMO / HITACHI and DELPHI supply 2 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is ASTEMO / HITACHI IGC0139.
Standard Replacement: 9 parts, from WALKER PRODUCTS, DENSO, BECK/ARNLEY and 5 other brands. A representative part number is DENSO 6731306.
Spark Plug
Summary: Notes include pre-set gaps of 0.03", 0.031", 0.032", 0.040", 0.041", 0.043" and 0.044". Replacement brands in this table include CHAMPION, DENSO and BOSCH.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Popular | 439 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Copper PlusPre-Set Gap: 0.041" | View on Amazon |
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 41806 | 🇺🇸 US 🇨🇦 CA | ProfessionalDouble Platinum | View on Amazon |
| CHAMPION | 7318 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Double Platinum PowerPre-Set Gap: 0.04" | View on Amazon |
| DENSO | 3301 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Double PlatinumPre-Set Gap: 0.032" | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO Popular | 4701 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Iridium TTPre-Set Gap: 0.040" | View on Amazon |
| DENSO Popular | 5303 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Iridium PowerPre-Set Gap: 0.044" | View on Amazon |
| AUTOLITE | XP3924 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Iridium XP Spark Plug Dual Display PackPre-Set Gap: 0.044" | View on Amazon |
| BOSCH | 9687 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Fine Wire Double Iridium | View on Amazon |
| BOSCH | 96304 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OE Fine Wire Double Iridium Pin-to-PinPre-Set Gap: 0.031" | View on Amazon |
| CHAMPION | 9013 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IridiumInstalled Height (Inch): 2 In | View on Amazon |
| DENSO | 3485 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Iridium Long LifeSuper Ignition Plug (SIP) | View on Amazon |
| NGK | 90911 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Laser Iridium High Ignitability | View on Amazon |
| SKP | SP1013 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Iridium XP | View on Amazon |
Platinum (lasts up to 2x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION | 3720 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum PowerPre-Set Gap: 0.03" | View on Amazon |
| MOTORCRAFT | SP497X | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Platinum Spark PlugPlatinum | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
15 Spark Plug parts are listed for the 2018 Toyota Prius C, from CHAMPION, DENSO, BOSCH and 5 other brands. CHAMPION 439 carries the "Popular" badge.
In the Copper / Nickel grade, CHAMPION supplies 1 part: grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. A representative part number is CHAMPION 439.
In the Double Platinum (lasts up to 3x longer than Copper / Nickel) grade, ACDELCO, CHAMPION and DENSO supply 3 parts: grouped under the catalog's "Double Platinum (lasts up to 3x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 41806.
The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 9 options from DENSO, BOSCH, AUTOLITE and 3 other brands — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. DENSO 4701 is listed in this group.
In the Platinum (lasts up to 2x longer than Copper / Nickel) grade, CHAMPION and MOTORCRAFT supply 2 parts: grouped under the catalog's "Platinum (lasts up to 2x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is CHAMPION 3720.
Spark Plug / Ignition Coil Boot
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | 19471 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Federal Wire | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | SPP143E | 🇺🇸 US 🇨🇦 CA 🇲🇽 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 2018 Toyota Prius C come from STANDARD MOTOR PRODUCTS.
The Economy section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS 19471 is listed in this group.
Standard Replacement: 1 part, from STANDARD MOTOR PRODUCTS. A representative part number is STANDARD MOTOR PRODUCTS SPP143E.
Listed part numbers: STANDARD MOTOR PRODUCTS 19471 and STANDARD MOTOR PRODUCTS SPP143E.
Buying Ignition Parts for a 2018 Toyota Prius C
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 1.5L L4 ELECTRIC/GAS engine — every part on this page is matched to it.
- 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: Ignition Coil and Spark Plug .
Frequently Asked Questions
How many ignition parts fit the 2018 Toyota Prius C?
Our catalog currently lists 59 ignition parts for the 2018 Toyota Prius C across 5 subcategories and 24 brands, covering the 1.5L L4 ELECTRIC/GAS engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 2018 Toyota Prius C?
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 spark-plug gap is listed for the 2018 Toyota Prius C?
Notes on this page include pre-set gaps of 0.03", 0.031", 0.032", 0.040", 0.041", 0.043" and 0.044". Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
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 2018 Toyota Prius C 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 2018 Toyota Prius C?
Every part on this page is matched to the 1.5L L4 ELECTRIC/GAS engine. 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 2018 Toyota Prius C
Ignition Parts for Other Toyota Prius C 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.