The NGK 6619 Iridium IX Spark Plug (LFR6AIX-11) is built for high-performance and long-life ignition in modern engines. Featuring a fine-wire iridium center electrode and tapered ground electrode, it ensures consistent combustion, quicker starts, improved throttle response, and extended durability under demanding driving conditions.
🔧 Iridium tip provides exceptional longevity and spark stability 🔧 Fine-wire design improves ignitability and fuel efficiency 🔧 Tapered ground electrode minimizes quenching for better combustion 🔧 Pre-gapped at 1.1mm for fast, OE-style installation
Brand & Part Number: NGK 6619 (LFR6AIX-11) Material: Iridium Thread Size: 14mm Reach: 25mm (0.98 in) Hex Size: 5/8 in (16mm) Heat Range: 6 Seat Type: Gasket Resistor: Yes Gap: 1.1mm (0.043 in)
Choose NGK LFR6AIX-11 Iridium IX for reliable ignition, smoother performance, and extended plug life in today’s advanced engines—order now!
At TXN Supply, we're driven by a passion for quality and reliability. Whether you're a DIY mechanic, an automotive professional, or just looking for top-notch essentials, we provide premium spark plugs, oil filters, fluids, and more from trusted brands like Champion, NGK, and ACDelco.
Our mission is simple: to deliver high-quality auto parts and everyday must-haves with fast shipping and great prices!
Immediate payment is required for all purchases. We accept major payment methods via eBay Managed Payments, including credit/debit cards, PayPal, Apple Pay, and Google Pay. Orders process immediately after payment. Contact us if you need assistance.
We offer fast, reliable shipping within the USA. Orders are processed quickly and shipped via trusted carriers. Tracking information will be provided. Expedited options may be available at an extra cost. Contact us for any shipping inquiries.
We offer a 30-day return period. Items must be in original condition. Buyer is responsible for return shipping unless the item is defective or incorrect. Refunds are processed once the item is received. Contact us for any return assistance.



