Set of 4 iridium spark plugs NGK 94833 PLFER7A8EG

Set of 4 NGK 94833 PLFER7A8EG Iridium Spark Plugs

A ready-made professional set of four automotive spark plugs designed for the complete simultaneous replacement of ignition system elements in four-cylinder gasoline engines. The use of iridium alloy on the central electrode and platinum plating on the grounding side electrode ensures uninterrupted operation of the power unit under increased thermal and mechanical loads. High-quality spark formation contributes to the instantaneous ignition of the fuel-air mixture, which directly affects the smoothness of the car's ride, acceleration dynamics, and overall engine responsiveness. The presence of a complete set of parts from one factory batch guarantees identical physical parameters and the same electrical resistance in each cylinder, minimizing imbalance in engine operation.

Technological Features and Protection of Onboard Electronics

The use of precious metals in the construction significantly reduces the diameter of the central electrode, facilitating the generation of a powerful spark discharge even at reduced onboard network voltage or in severe frost. A copper core integrated inside the side electrode contributes to the accelerated removal of excess heat from the combustion chamber, preventing thermal destruction of parts and dangerous pre-ignition. A special metal coating on the outer casing protects the steel thread from aggressive environmental influences and eliminates the risk of cylinder head damage during subsequent disassembly.

Built-in engineering solutions ensure the stability of the system's technical parameters throughout the entire service interval:

• The internal ceramic resistor effectively suppresses electromagnetic pulses, protecting sensitive sensors and electronic control units.

• The fixed electrode gap is calibrated on the conveyor and does not require additional adjustment before direct installation.

• The external ceramic insulator with special ribs prevents dangerous surface spark breakdown along the body.

Complete sealing of the connection at the junction of the metal and ceramic parts prevents leakage of working gases from the cylinder and maintains the nominal engine compression.

Engineering Compatibility with Automotive Platforms

NGK 94833 (PLFER7A8EG) is an original platinum spark plug mainly used in Volkswagen Group (VAG) gasoline engines with turbocharging of the EA888 Gen3 series.

Main Engines Suitable for NGK 94833

• 1.4 TSI: CZDA, CZEA, DEDA

• 1.8 TSI: CJSA, CJSB, CJSC, CPKA, CPRA

• 2.0 TSI / TFSI: CJXA, CJXB, CJXC, CJXD, CJXE, CJXF, CULA, CULB, CULC, CYFB, CYRB, CYRC, DKZA, DKZC, DNUA, DNUC and other EA888 Gen3 modifications.

Installed on Cars

Product Specifications

• Brand: NGK

• Brand Registration Country: Japan

• Material: iridium, platinum, steel, ceramic, copper

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

• Color: white, silver

• Weight: 188 g

• Condition: new

• Product Group: auto parts, ignition system

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

• Compatibility: original replacement for Volkswagen, Audi, Skoda, Seat cars with OEM numbers 06K 905 601 B, 06K905601B

• Features: laser welding of electrodes, iridium central electrode, platinum plating on the grounding electrode, 5 kOhm interference suppression resistor

• Heat Range: 7

• Seating Type: flat with sealing washer

• Package Contents: 4 spark plugs in individual protective tubes and branded cardboard boxes, combined into one complete box