This page lists 27 ignition parts for the 2021 Kia Rio, across 4 part types, covering the 1.6L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 Kia Rio, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 23 parts of the 27 listed are Camshaft Position Sensor (9 parts), Crankshaft Position Sensor (8 parts) and Ignition Coil (6 parts). The other 1 part type covers the remaining 4 parts.
Every part on this page is matched to the 1.6L L4 — the only engine offered in the 2021 Kia Rio.
The most listed brands for 2021 Kia Rio ignition parts are STANDARD MOTOR PRODUCTS (6 parts), WALKER PRODUCTS (5 parts) and DELPHI (4 parts), plus 10 more brands. Quality grades include Standard Replacement, Economy and Premium.
6 parts on this 2021 Kia Rio page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SKP SKPC960 (Camshaft Position Sensor) and STANDARD MOTOR PRODUCTS PC934T (Crankshaft Position Sensor). Click any part number to see every vehicle that part fits.
Camshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular | SKPC960 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PC960 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | PC1231 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ExhaustUS Models | View on Amazon |
| STANDARD MOTOR PRODUCTS | PC1238 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IntakeUS Models | View on Amazon |
| WALKER PRODUCTS | 2352393 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WALKER PRODUCTS | 2351974 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor OnlyConnector Shape: Oval | View on Amazon |
| WELLS | 5S17023 | 🇺🇸 US 🇨🇦 CA | Lower | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI | SS12443 | 🇺🇸 US 🇨🇦 CA | Fits Exhaustor ExhaustS Model | View on Amazon |
| DELPHI | SS12500 | 🇺🇸 US 🇨🇦 CA | Fits Intak | 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.
9 Camshaft Position Sensor parts are listed for the 2021 Kia Rio, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, DELPHI and 2 other brands. SKP SKPC960 carries the "Popular" badge.
In the Economy grade, SKP supplies 1 part: the catalog's value-priced group. A representative part number is SKP SKPC960.
The Standard Replacement section lists 6 options from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and WELLS — built to original-equipment specification. STANDARD MOTOR PRODUCTS PC960 is listed in this group.
2 ungrouped parts are not assigned to a grade, with the same engine-level match.
Part numbers include SKP SKPC960, STANDARD MOTOR PRODUCTS PC960 and STANDARD MOTOR PRODUCTS PC1231, among others listed above.
Crankshaft Position Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PC934T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
| FAMOUS BRAND | CSC5088 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SPECTRA PREMIUM | S10578 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PC934 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular | View on Amazon |
| DELPHI | SS12447 | 🇺🇸 US 🇨🇦 CA | Fits or S Model | View on Amazon |
| WALKER PRODUCTS | 2351456 | 🇲🇽 MX | Sensor Only | View on Amazon |
| WALKER PRODUCTS | 2352353 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS | 5S17033 | 🇺🇸 US 🇨🇦 CA | 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.
8 Crankshaft Position Sensor parts are listed for the 2021 Kia Rio, from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, FAMOUS BRAND and 3 other brands. STANDARD MOTOR PRODUCTS PC934T carries the "Popular" badge.
Economy: 3 parts, from STANDARD MOTOR PRODUCTS, FAMOUS BRAND and SPECTRA PREMIUM. A representative part number is STANDARD MOTOR PRODUCTS PC934T.
The Standard Replacement section: 5 options from WALKER PRODUCTS, STANDARD MOTOR PRODUCTS, DELPHI and 1 other brand. STANDARD MOTOR PRODUCTS PC934 is listed in this group.
Listed part numbers: STANDARD MOTOR PRODUCTS PC934T, FAMOUS BRAND CSC5088 and SPECTRA PREMIUM S10578, plus the other parts above.
Ignition Coil
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI | GN11188 | 🇺🇸 US 🇨🇦 CA | Coil Type: Coil On Plug | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 1788614 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Popular | 9212118 | 🇲🇽 MX | Single Coil | View on Amazon |
| STANDARD MOTOR PRODUCTS | UF636 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS | COP554 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2IGC0445 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
6 Ignition Coil parts are listed for the 2021 Kia Rio, from DELPHI, BECK/ARNLEY, WALKER PRODUCTS and 3 other brands. BECK/ARNLEY 1788614 carries the "Popular" badge.
The Premium section lists 1 option from DELPHI — a step above OE specification in materials, tolerances or warranty terms. DELPHI GN11188 is listed in this group.
The Standard Replacement section: 4 options from BECK/ARNLEY, WALKER PRODUCTS, STANDARD MOTOR PRODUCTS and 1 other brand. BECK/ARNLEY 1788614 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
Listed part numbers: BECK/ARNLEY 1788614, DELPHI GN11188 and WALKER PRODUCTS 9212118, plus the other parts above.
Spark Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | 96321 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire Double IridiumPre-Set Gap: 0.044" | View on Amazon |
| CHAMPION | 9409 | 🇺🇸 US 🇨🇦 CA | IridiumPre-Set Gap: 0.033" | View on Amazon |
| NGK | 90964 | 🇺🇸 US 🇨🇦 CA | Laser Iridium High Ignitability | View on Amazon |
| NGK | SILZKR7K11S | 🇺🇸 US 🇨🇦 CA | Laser Iridium High Ignitability | 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.
4 Spark Plug parts for the 2021 Kia Rio come from 3 brands — NGK, BOSCH and CHAMPION.
This group includes BOSCH 96321, CHAMPION 9409 and NGK 90964 and the remaining parts above.
Buying Ignition Parts for a 2021 Kia Rio
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 1.6L L4 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: Camshaft Position Sensor and Crankshaft Position Sensor .
Frequently Asked Questions
How many ignition parts fit the 2021 Kia Rio?
Our catalog currently lists 27 ignition parts for the 2021 Kia Rio across 4 subcategories and 13 brands, covering the 1.6L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 2021 Kia Rio?
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 2021 Kia Rio?
Notes on this page include pre-set gaps of 0.033" 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 2021 Kia Rio 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 Kia Rio?
Every part on this page is matched to the 1.6L L4 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 2021 Kia Rio
Ignition Parts for Other Kia Rio Years
Switch vehicle or jump to a subcategory
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.