What is the spark plug model for the Lancer EX?

[McErin]

The spark plug model for the Lancer EX is iridium KH6RTCI (N05), LDHRIPLK, and turbocharged 1.5T double iridium LDHDIPLK (905). The spark plug is mainly composed of a terminal nut, insulator, terminal stud, center electrode, side electrode, and shell. The main types of spark plugs are: standard spark plugs, projected insulator spark plugs, electrode spark plugs, seat spark plugs, pole spark plugs, and surface gap spark plugs. Spark plugs are installed on the side or top of the engine. In the early days, spark plugs were connected to the distributor via ignition cables. Over the past decade, most car engines have been modified to connect the ignition coil directly to the spark plug.

[AlexFitz]

Last time I replaced the spark plugs for my old Soueast Lingyue, I remember the most commonly used one was the NGK BKR6E-11 nickel alloy type. For the 1.5L Mitsubishi 4G15M engine, this model is recommended in the factory manual. But you need to check the specific year - for my 2010 model, this one is definitely correct with a 1.1mm gap setting. The newer iridium versions can also be used now, but pay attention to heat range matching - 6 is the safest bet. A word of caution: some roadside shops might try to pass off knockoff brands, and don't exceed 20Nm torque when tightening - my friend once snapped his ignition leads. When buying online, make sure to check the anti-counterfeit code, as fake spark plugs often have electrodes that burn crooked within two weeks.

[Beckett]

After checking the database, the mainstream models of Lancer EX use two types: early models with Mitsubishi engines paired with NGK BKR6E-11, while later models switched to Bosch FR7DE. Based on my measurements, a heat range of 6 is just right for domestic fuel, and the gap is recommended to be maintained at 0.9-1.1mm. Some car enthusiasts have switched to Denso's IK20 iridium version, which shows significant fuel-saving effects but costs three times more. The most crucial point is to confirm the thread diameter is 14mm. I measured the old model's removed spark plug with a thread length of 19mm, while some newer year models changed to 26.5mm. Last time, I helped a neighbor replace it with the wrong model, and the cold start shook like a tractor.

[LeHolden]

Simply put: Mitsubishi engines use NGK BKR6E-11 spark plugs. When repairing cars, I've seen that the Bosch alternative YT1597 also works, costing just a few dozen bucks. Remember to buy four and replace them all—don't mix different brands. Street-side shops often push cheap knockoffs, which can lead to misfires after just 20,000 km. Changing them yourself is super easy—just pull out the ignition coil to replace them, and set your torque wrench to 18 N·m (don't brute-force it). Never do this on a hot engine—the cast iron cylinder block can burn your skin off!

[MacMicah]

Just went through the maintenance manual, the 1.5L Lingyue should use NGK BKR6E-11 or Denso K20PR-U11. Focus on the electrode tip color—light brown is the healthiest, if it turns white, the heat range is too high. I've tested three brands on my car, the iridium ones lasted 50,000 km before replacement, while ordinary nickel alloy ones started degrading at 30,000 km. When purchasing, pay attention to the resistor-equipped models, otherwise they'll interfere with the radio. Once an apprentice installed the wrong short-thread version, causing air leakage that melted the ignition coil rubber boot.

[VanJuliette]

As a 15-year owner of a Lancer EX, I strongly recommend the original NGK spark plugs. However, for vehicles manufactured after 2012, you can switch to the BKR6EIX iridium-platinum model for faster power response. Through my testing, I found that the older 14mm threaded models require exactly 15 degrees of tightening angle - excessive torque will cause thread stripping. One pitfall to note: aftermarket parts have center electrodes that are 0.3mm shorter than genuine parts, leading to incomplete combustion due to ignition position deviation. Last rainy season, I also discovered that inferior spark plug rubber seals deteriorate, causing oil seepage into the cylinder head.