NGK
NGK 93501 Laser Iridium Spark Plugs IFR5E11 (Pack of 4)
NGK 93501 Laser Iridium Spark Plugs IFR5E11 (Pack of 4)
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Genuine NGK Laser Iridium Spark Plug Set – Pack of 4 (Stock No. 93501 / Part # IFR5E11)
Upgrade your engine’s ignition efficiency and throttle response with a factory-fresh 4-pack of genuine NGK Laser Iridium spark plugs. Featuring a laser-welded fine-wire iridium center electrode and a platinum-chipped ground electrode, the NGK IFR5E11 is designed to deliver maximum spark energy, superior fuel economy, and exceptional long-term wear resistance for Asian and domestic vehicles.
Ideal for routine engine tune-ups, replacing worn ignition plugs, or curing rough idling and misfire fault codes.
Key Features & Benefits:
- Dual-Precious Metal Construction: Laser-welded 0.6mm iridium tip center electrode paired with a platinum ground electrode tip for ultra-long service life.
- Enhanced Cold Starts & Acceleration: Fine-wire design requires less voltage to spark, ensuring fast starts and crisp throttle response.
- Maximum Fuel Efficiency & Low Emissions: Consistent spark ignition optimizes combustion, eliminating misfires and unburnt fuel waste.
- Anti-Fouling & Anti-Corrosion: High-grade alumina silicate ceramic insulator with trivalent metal plating offers superior anti-seizing and anti-corrosion properties.
- Direct OEM Fitment: Pre-gapped to factory specification (0.044 in / 1.1 mm) for quick plug-and-play installation.
Cross-Reference & Interchange Part Numbers:
Replaces and interchanges with the following original equipment and manufacturer part numbers:
- NGK Part / Stock Numbers: IFR5E11, 93501, IFR5E-11
- Honda / Acura OEM: 98079-5514E
- Subaru OEM: 22401AA570
- Toyota / Lexus OEM: 90919-01217, 90919-01218, SK16R11
- Denso / Aftermarket: SK16R11, 3297, IK16, VK16
Product Specifications:
- Brand: NGK Spark Plugs
- Series: Laser Iridium
- Stock Number: 93501
- Part Number / Shell ID: IFR5E11
- Quantity Included: Pack of 4 Spark Plugs
- Center Electrode Material: Iridium Tip
- Ground Electrode Material: Platinum Pad
- Thread Size: 14mm
- Reach: 19mm (3/4")
- Hex Size: 5/8" (16mm)
- Factory Pre-Gap: 0.044" (1.1mm)
- Condition: Brand New In Original Packaging
Vehicle Compatibility:
Fits a wide range of Honda, Acura, Subaru, Toyota, and Lexus models equipped with 4-cylinder and V6 engines specifying the IFR5E11 / SK16R11 heat range. Please verify fitment using your owner's manual or VIN before ordering.
- Honda Accord: 2003 – 2007 (2.4L L4)
- Honda CR-V: 2002 – 2009 (2.4L L4)
- Honda Element: 2003 – 2011 (2.4L L4)
- Acura TSX: 2004 – 2008 (2.4L L4)
- Subaru Forester: 2005 – 2010 (2.5L H4 Non-Turbo)
- Subaru Outback / Legacy: 2005 – 2009 (2.5L H4 Non-Turbo)
- Subaru Impreza: 2005 – 2011 (2.5L H4 Non-Turbo)
Shipping & Delivery Guarantee:
- Fast 1-2 Day Processing: Orders process and ship within 1-2 business day directly from our warehouse.
- Protective Packaging: Individually boxed and cushioned so electrode gaps remain perfectly set during transit.
- Live Tracking: Automated email update with tracking info provided upon carrier dispatch.
- 100% Guaranteed Authentic: Authentic NGK products sourced directly—no counterfeit or grey-market spark plugs.
Why Choose Valtrix Powertrain?
At Valtrix Powertrain, we carry genuine OEM ignition components to keep your engine operating at peak efficiency. Enjoy fast shipping, competitive pricing, and dedicated customer support on every order.

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