KacuYelin Iridium Spark Plugs Set of 4 — Compatible with Honda/ Toyota/ Subaru/ Mazda, OE 93501 LKAR7BIX-11S, Long-Life Ignition

KacuYelin Iridium Spark Plugs Set of 4 are high-quality replacement spark plugs engineered to match OEM fitment for many Honda, Toyota, Subaru, Mazda, Acura, Lexus and Scion models.

These iridium plugs (OE references including 93501 and LKAR7BIX-11S) are made by KacuYelin in TS16949-certified facilities and supplied as a matched set of four. They are designed to be direct-replacement items for specified engines, with attention to electrode construction, thread dimensions and heat range so they fit correctly and deliver reliable ignition across normal driving conditions.

Which vehicles will these KacuYelin iridium spark plugs fit?

These plugs are specified for a broad group of compact and mid-size vehicles from Honda, Toyota, Subaru, Mazda, Acura, Lexus and Scion. Fitment covers multiple model years and engine sizes; always verify fit with your vehicle's service manual or the seller fit tool before ordering.

• Honda/Acura: Accord (2.4/2.0), Civic (2.0), CR-V, Fit and ILX/TLX model ranges listed.
• Toyota/Lexus: Corolla, Matrix, Prius series, Yaris, CT200h matching 1.5–1.8L engines.
• Subaru: Crosstrek, Forester, Outback, Impreza, Legacy (2.0–2.5L H4 engines).
• Mazda/Scion/Pontiac: Mazda3/6, CX-5, CX-3, Miata ranges and Scion xD, iA, iQ, Pontiac Vibe.

How do these iridium plugs differ from standard plugs and why choose them?

Iridium tips are harder and finer than conventional nickel electrodes, which promotes a more focused spark and improved durability under regular driving. This can mean longer service intervals and more consistent ignition, particularly on engines with tighter ignition requirements.

• Iridium center electrode for longer life and stable spark energy.
• Precise electrode geometry for predictable ignition behavior.
• Manufactured to meet OEM reference numbers for straightforward replacement.
• Quality control in TS16949-certified production to reduce early failures.

What should I check before ordering or installing these plugs?

Confirming compatibility is essential. Use an online fit tool (e.g., amazonconfirmedfit) and compare the new plug to the old one for thread length, seat type and heat range; incorrect parts can damage your engine or affect performance.

• Verify OE reference numbers (93501, LKAR7BIX-11S and equivalents) match your vehicle.
• Check thread size and electrode shape against the removed plug.
• Ensure heat range difference is within one step if substituting a high/low range.
• Use a torque wrench and factory torque specs during installation.

Will using these plugs change fuel consumption or engine behavior?

Properly matched iridium spark plugs help maintain consistent ignition timing and combustion stability, which can support efficient engine operation. Results vary with engine condition, maintenance history and driving style; these plugs are a component in overall performance rather than a guaranteed fix.

• Stable high-voltage output to reduce misfires and unstable idling risk.
• May reduce symptoms like backfire, hesitation or rough idle when plugs were previously worn.
• Works best alongside correct gap, torque and ignition system maintenance.

Who is this for: These KacuYelin iridium spark plugs suit DIYers, mechanics and fleet owners replacing worn or OEM plugs on the listed models who want OEM-referenced parts with iridium durability. If you need long-lasting replacement plugs made in certified facilities and want to match factory specifications, this set of four is positioned as a straightforward, cost-effective option—just confirm fitment and install to factory torque and gap specifications.