This page lists 17 ignition parts for the 2025 Lexus RC350, across 4 part types, covering the 3.5L V6 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2025 Lexus RC350, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 15 parts of the 17 listed are Camshaft Position Sensor (10 parts), Ignition Coil (3 parts) and Crankshaft Position Sensor (2 parts). The other 1 part type covers the remaining 2 parts.
The 2025 Lexus RC350 came with a single engine, the 3.5L V6, and every part is verified against it.
9 brands supply ignition parts for the 2025 Lexus RC350, led by WALKER PRODUCTS (3 parts), DENSO (3 parts) and WELLS (3 parts), plus 6 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2025 Lexus RC350. 2 parts have it, including ULTRA-POWER 5S6281 (Camshaft Position Sensor) and WALKER PRODUCTS 2351343 (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 |
|---|---|---|---|---|
| ULTRA-POWER Popular | 5S6281 | 🇺🇸 US 🇨🇦 CA | Fits Leftor Exhaust (Right) | View on Amazon |
| HOLSTEIN | 2CAM0057 | 🇺🇸 US 🇨🇦 CA | Fits Leftor Exhaust (Right) | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS Popular | 2351343 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| DENSO | 1961002 | 🇺🇸 US 🇨🇦 CA | Engine Camshaft Position Sensor | View on Amazon |
| DENSO | 1961001 | 🇺🇸 US 🇨🇦 CA | Engine Camshaft Position Sensor | View on Amazon |
| HELLA | 009168411 | 🇺🇸 US 🇨🇦 CA | 3-Pin Connectorwith Seal Ring | View on Amazon |
| HELLA | 009168551 | 🇺🇸 US 🇨🇦 CA | 3-Pin Connectorwith Seal Ring | View on Amazon |
| WALKER PRODUCTS | 2351476 | 🇺🇸 US 🇨🇦 CA | Sensor Only | View on Amazon |
| WELLS | 5S6281 | 🇺🇸 US 🇨🇦 CA | Fits Leftor Exhaust (Right) | View on Amazon |
| WELLS | 5S7215 | 🇺🇸 US 🇨🇦 CA | Intake (Right) | 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.
10 Camshaft Position Sensor parts for the 2025 Lexus RC350 come from 6 brands — WALKER PRODUCTS, DENSO, HELLA and 3 other brands. The "Popular" part is ULTRA-POWER 5S6281.
The Economy section lists 2 options from ULTRA-POWER and HOLSTEIN — the catalog's value-priced group. ULTRA-POWER 5S6281 is listed in this group.
In the Standard Replacement grade, WALKER PRODUCTS, DENSO, HELLA and 1 other brand supply 8 parts: built to original-equipment specification. A representative part number is WALKER PRODUCTS 2351343.
Crankshaft Position Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI | SS12340 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS | 2352378 | 🇺🇸 US 🇨🇦 CA | 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 2025 Lexus RC350 come from 2 brands — DELPHI and WALKER PRODUCTS.
This group includes DELPHI SS12340 and WALKER PRODUCTS 2352378.
Ignition Coil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO | 6731311 | 🇺🇸 US 🇨🇦 CA | Direct Ignition Coil or Stick Coil | View on Amazon |
| HOLSTEIN | 2IGC0565 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 5C2258 | 🇺🇸 US 🇨🇦 CA | 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.
3 Ignition Coil parts for the 2025 Lexus RC350 come from 3 brands — DENSO, HOLSTEIN and WELLS.
Listed part numbers: DENSO 6731311, HOLSTEIN 2IGC0565 and WELLS 5C2258.
Spark Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH | FR7NI33 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire Double IridiumPre-Set Gap: 0.027" | View on Amazon |
| CHAMPION | 9010 | 🇺🇸 US 🇨🇦 CA | IridiumReach: 1 in | 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.
2 Spark Plug parts are listed for the 2025 Lexus RC350, from BOSCH and CHAMPION.
Part numbers include BOSCH FR7NI33 and CHAMPION 9010.
Buying Ignition Parts for a 2025 Lexus RC350
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 3.5L V6 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 Ignition Coil .
Frequently Asked Questions
How many ignition parts fit the 2025 Lexus RC350?
Our catalog currently lists 17 ignition parts for the 2025 Lexus RC350 across 4 subcategories and 9 brands, covering the 3.5L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 2025 Lexus RC350?
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 2025 Lexus RC350?
Notes on this page include pre-set gaps of 0.027", 0.031" and 0.041". 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 2025 Lexus RC350 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 2025 Lexus RC350?
Every part on this page is matched to the 3.5L V6 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 2025 Lexus RC350
Ignition Parts for Other Lexus RC350 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.