Set of 4 pcs ruthenium spark plugs NGK 94122 LFR6AHX-S RUTHENIUM HX for Toyota Lexus BMW HONDA

Set of 4 Ruthenium Spark Plugs NGK 94122 LFR6AHX-S RUTHENIUM HX for Toyota Lexus BMW HONDA

Innovative Ruthenium HX Series for Efficient Engine Performance

The NGK 94122 (LFR6AHX-S) Ruthenium Spark Plug set represents the latest generation of ignition system components, surpassing traditional iridium and platinum solutions in operational performance. The use of ruthenium—a rare precious metal from the platinum group—provides unsurpassed resistance to oxidation and high-temperature corrosion. This allows the electrodes to maintain their sharpness and gap precision throughout their service life, which is especially critical for modern engines with high compression ratios, turbocharging, and direct fuel injection.

Double Fine Electrode (DFE) Technology

The design of the Ruthenium HX series spark plugs minimizes the spark "quenching" effect, directing more energy toward the ignition of the fuel-air mixture. The ruthenium-tipped center electrode and platinum ground electrode create conditions for faster flame front propagation. The result is more complete fuel combustion, stable idling even in cold weather, and a noticeable reduction in exhaust emissions. Due to the low voltage required for spark gap ionization, the load on the ignition coils is significantly reduced.

Reliability and Durability of Construction

Each spark plug in the set is protected by a special trivalent metal plating that prevents corrosion and eliminates thread seizing in the cylinder head. The high-tech alumina silicate ceramic insulator possesses exceptional dielectric strength, preventing current leaks. A copper core inside the center electrode ensures rapid heat dissipation, protecting the spark plug from overheating under prolonged loads. An integrated 5 kOhm resistor effectively neutralizes radio frequency interference, protecting the vehicle's onboard electronics.

Detailed Vehicle Compatibility

This 4-piece set is designed for a wide range of 4-cylinder engines and is also suitable for partial or complete replacement in V6 and V8 engines of the corresponding makes.

Technical Specifications

• Brand: NGK

• Country of Brand Registration: Japan

• Material: ruthenium, platinum, alumina silicate ceramic, copper, steel

• Size: thread diameter 14 mm, thread pitch 1.25 mm, thread reach 26.5 mm, hex size 16 mm

• Color: silver, white

• Weight: 192 grams

• Gender: unisex

• Condition: new

• Product Group: ignition system

• Purpose: ignition of the fuel-air mixture in internal combustion engines

• Compatibility: Toyota Camry/RAV4, Lexus ES/GS/RX, BMW 3/5/X5 (M54), Honda Accord/CR-V/Pilot, Acura MDX, Volvo S60/S80/XC90

• Features: Ruthenium HX technology, DFE (Double Fine Electrode) design, enhanced corrosion resistance

• Equipment: 4 spark plugs in individual packaging, master cardboard box

• Stock Number: 94122

• Marking: LFR6AHX-S

• Heat Range: 6

• Electrode Gap: 1.1 mm

• Seat Type: flat gasket

• Resistor: integrated, 5 kOhm

• Terminal Type: solid cast nut

• Welding Method: 360-degree laser-welded electrode

• Protective Coating: trivalent plating

• Service Life: up to 160,000 km (depending on operating conditions)

• Insulator: ribbed (to prevent flashover)