Click to zoom in
Long Lasting Spark Quality for High Performance Builds
This Laser Iridium plug uses a fine wire center electrode and a taper cut ground electrode to improve flame kernel growth and reduce quenching. The laser welded iridium tip resists erosion under sustained high heat, helping maintain a consistent gap over a long service life.
Key Features
- Laser welded fine wire iridium center electrode for a strong, focused spark
- Taper cut ground electrode reduces quenching and improves flame kernel growth
- Trivalent metal plating on the shell resists corrosion and seizing
- Resistor design suppresses radio and electronic interference
- Engineered for demanding heat range 7 applications
Specifications
| Detail | Value |
|---|---|
| Gap | 1.1mm |
| Heat Range | 7 |
| Thread Size | M12 x 1.25 |
| Reach | 26.5mm |
| Hex Size | 14mm |
| Resistor | Yes |
What's Included
- 4 NGK ILZKAR7E11S Laser Iridium spark plugs
About NGK
NGK is a global leader in ignition technology, and its Laser Iridium line uses a laser welding process to fuse iridium wire to the electrode tip for exceptional durability under high combustion temperatures.
Related Parts
- NGK Iridium Long Life Spark Plug Box of 4 (ILKR8E6)
- NGK Iridium Stock Heat Spark Plug Box of 4 (LZTR5AIX-13)
- NGK Iridium Spark Plug Box of 4 (LFR7AIX)
FAQ
What is the NGK ILZKAR7E11S?The NGK ILZKAR7E11S is a Laser Iridium spark plug with a heat range of 7, a 1.1mm gap, and an M12 x 1.25 thread. It uses a laser welded fine wire iridium center electrode built for long term durability.
What gap does this spark plug use?This plug uses a 1.1mm gap, common for direct injection and turbocharged performance applications.
What thread size and reach does this plug use?It uses an M12 x 1.25 thread with a 26.5mm reach and 14mm hex size.
Why choose a Laser Iridium plug over a standard nickel plug?The laser welded iridium tip resists electrode erosion far better than nickel alloy, helping the plug maintain its factory gap and spark quality over a longer service interval.
Does this spark plug include a resistor?Yes, this plug includes an internal resistor to help suppress radio and electronic interference.
How many plugs come in this box?This listing includes a box of 4 spark plugs.
Is this plug suited for turbocharged or direct injection engines?Its heat range 7 rating and 1.1mm gap make it a common fit for modern turbocharged and direct injection engines, though you should confirm your engine manufacturer specification before installing.
Install Instructions
- Allow the engine to cool completely before starting work
- Remove the ignition coil, coil pack, or spark plug wire
- Use a spark plug socket to remove the old plug, turning counterclockwise
- Verify the gap on the new plug matches manufacturer specification
- Thread the new plug in by hand until seated, then torque to specification
- Reconnect the coil, coil pack, or wire before starting the engine
Engine
Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...
View Engine Products
Ignition
Ignition parts keep every cylinder firing on time and every start crisp, and Black Ops Auto Works stocks the full system in one collection. Spark plugs, coil packs, plug wires, distributors, starters, sensors, and glow plugs from NGK, Granatelli, MSD, Ford Performance, Moroso, Mishimoto, HKS, and COBB all live here. Whether you are chasing a weak spark on a daily driver, refreshing a tune-up on an LS or Coyote build, or wiring in a full coil-on-plug conversion, this collection has the OEM-grade replacements and the performance upgrades to keep the mixture lighting off cleanly under boost, high RPM, or heavy load. What Belongs in the Ignition System The ignition system is more than just the spark plug. Every part in this collection plays a role in taking 12-volt battery power, stepping it up to tens of thousands of volts, and delivering that spark to the right cylinder at the right instant. Weakness anywhere in the chain shows up as misfires, hard starts, poor mileage, or a chec...
View Ignition Products
NGK
NGK ignition parts for import, domestic, and European vehicles are stocked at Black Ops Auto Works. Shop NGK spark plugs, iridium and platinum plugs, spark plug wire sets, ignition coils, and oxygen sensors trusted by OE manufacturers and racers worldwide. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 565 NGK SKUs spanning spark plugs, wires, coils, and sensors. What This Brand Covers NGK is one of the largest spark plug and ignition component manufacturers in the world, supplying OE spark plugs to most major automakers while also producing performance-grade iridium and platinum plugs for the aftermarket. NGK also manufactures spark plug wire sets, ignition coils, and oxygen sensors. Categories Included Standard copper core spark plugs, V-Power plugs, iridium IX plugs, laser iridium plugs, racing plugs, spark plug wire sets, ignition coils, and OE-spec oxygen sensors. NGK Spar...
View NGK Products
Spark Plugs
Spark plugs for cars, trucks, SUVs, and import platforms are stocked at Black Ops Auto Works. Shop iridium spark plugs, laser iridium spark plugs, double platinum spark plugs, nickel spark plugs, and racing spark plugs for LS, LT, HEMI, EcoBoost, Subaru EJ and FA, and import turbo engines. Every product is filterable by heat range, thread size, gap, and vehicle year, make, model, and engine so the correct spark plug ships the first time. Black Ops Auto Works carries 480 spark plug SKUs across every major electrode material and heat range. What This Category Covers Spark plugs ignite the compressed air and fuel mixture in each cylinder, and the correct plug for your engine depends on electrode material, heat range, and thread specification. Choosing the wrong heat range or gap can cause misfires, fouling, or in extreme cases pre-ignition damage. Electrode Materials Iridium and laser iridium plugs use a fine center electrode for a stronger, more consistent spark and the longest se...
View Spark Plugs Products