STANDARD IGNITION: TORCH Spark Plugs (K6RTC-11 / K5RTC) – Copper Core for Wide Asian/European Use.
RESTORE RELIABLE FIRING. END ROUGH IDLE. GET THE ECONOMICAL, OE-SPEC NICKEL PLUG FOR YOUR ENGINE.
The spark plugs listed (K6RTC-11, K5RF-11, K5RTC) are part of the standard copper-core ignition line from TORCH—a major Chinese manufacturer often cross-referenced to global brands like NGK (e.g., BKR6E series). These plugs are designed for reliable, conventional firing in a huge variety of older and high-volume, cost-sensitive PFI (Port Fuel Injection) gasoline engines in the local market, such as those found in BYD, Geely, Chery, and various older Hyundai/Renault/Mitsubishi models.
The primary difference between the codes is the Heat Range and electrode style: K6RTC (colder) vs. K5RTC (hotter). They feature a robust Nickel Alloy electrode with a Copper Core for efficient heat dissipation.
CORE SPECS: Nickel/Copper Core for Conventional Ignition (16mm Hex)
These plugs are designed for reliable firing over standard service intervals (approx. 15,000–30,000 km) and are characterized by their standard dimensions.
| Specification | K6RTC-11 (Torch Code) | K5RTC (Torch Code) |
| Cross Reference | NGK BKR6E-11 / Denso K20PR-U | NGK BKR5E / Denso K16PR-U |
| Heat Range | 6 (Colder) | 5 (Hotter) |
| Metal Technology | Nickel Alloy / Copper Core | Nickel Alloy / Copper Core |
| Key Dimensions | M14 Thread, 19mm Reach | M14 Thread, 19mm Reach |
| Spanner Size (Hex) | 16 mm | 16 mm |
| Features | Resistor Type (R), Extended Gap (-11 = 1.1mm) | Resistor Type (R), Standard Tip/Gap |
| Application | Engines prone to running hot (performance, high speed) | Engines prone to fouling (city driving, lower output) |
| Origin | Made in China (TORCH) | Made in China (TORCH) |
WHY TORCH PLUGS ARE YOUR SMART TRANSACTION NOW
You are choosing a cost-effective, high-volume brand for essential routine maintenance.
Reliable Ignition: These plugs are engineered to deliver a consistent spark, immediately resolving issues like rough idling and difficult starting caused by worn electrodes.1
Copper Core Heat Transfer: The copper core ensures quick heat dissipation, which is vital for preventing the destructive pre-ignition (knock) common in hot climates.
Affordable Routine Care: TORCH provides functional, OE-equivalent quality at a very low price point, making regular tune-ups and maintenance highly accessible and cost-effective.
Heat Range Choice is Critical: Selecting the K5 (Hotter) or K6 (Colder) model allows you to match the plug to your engine's specific needs, optimizing performance and longevity.
OPTIMIZE YOUR IGNITION SYSTEM.
Spark plugs are sold individually but must be replaced as a full set (4 plugs) for balanced engine operation.
Crucial Check: Verify your engine uses an M14 thread and 16mm hex. Always check your manual to determine the correct heat range (5 or 6) needed.
Click "ADD TO CART" now and secure the TORCH Spark Plugs—the essential, cost-effective component for reliable ignition.
For more info about upgrading your spark plugs please read Platinum vs Iridium spark plugs
(K6RTC-11) (K5RF-11)(K5RTC)](/web/image/product.product/13542/image_1024/%5BSP195%5D%20Spark%20Plug%2016%20%5BTorch%5D%28made%20in%20China%29%28K6RTC-11%29%20%28K5RF-11%29%28K5RTC%29%20?unique=3a3946c)