Yuchai LN100-3705002 / NGK ILKAR7A7 Gas Special Long Thread Iridium Spark Plugs Compatible with CNG LNG Heavy Duty Trucks Buses Generator Sets
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| Center Electrode Material | Iridium |
| Side Electrode Material | Platinum/Nickel Alloy |
| Thread Diameter | 12 mm |
| Thread Length/Insertion Length | 26.5 mm (Long Thread/Extended Type) |
| Screwdriver Hex Size | 16 mm (5/8\u201d) |
| Spark Gap | 0.7 - 0.8 mm (factory preset, not adjustable) |
| Resistance Value | 5 kΩ |
| Heat Value Grade | NGK 7 number heat value (cold type, suitable for high compression ratio gas engines) |
| Insulator Material | High Strength Aluminum Oxide Ceramic |
| Seal Type | Flat Seat Washer Seal |
| Applicable Fuel Type | Compressed Natural Gas (CNG) / Liquefied Natural Gas (LNG) / Liquefied Petroleum Gas (LPG) |
| Design Life | 50,000 - 80,000 km / 1,500 - 4,000 hours (depending on operating conditions) |
| Certification | ISO 9001, IATF 16949, CE |
Manufacturer No.
ILKAR7A791432IFR7A-4D
OEM Part No.
LN100-3705002LN100-3705002A11N100-370500211N100-3705002SF1JAN100-3705002M2A00-3705002AMY800-3705002082V10102-00077A4D
Engine Part No.
YC6MKYC6LYC6JYC6TYC6CYC6TDYC4AYC4DYC12VC1680N-D31YC12VTDG-700N5HC
Interchange No.
NGK ILKAR7A7NGK 91432DENSO GK3-5TORCH K7RTCBOSCH FR7NI33
Fitment Vehicles
Yuchai YC6MK series CNG/LNG engineYutong bus CNG/LNG vehicleSINOTRUK HOWO CNG heavy truckShaanxi Auto DeLion CNG trailer truckDongfeng Tianlong CNG vehicleYuchai 50KW-1MW CNG generator setLonggong LG936L/LG938L loader (CNG version)
Engine System - Industrial Encyclopedia
Supplying original Yuchai part number LN100-3705002 gas special spark plugs, corresponding to NGK original model ILKAR7A7 (91432). Designed with an iridium center electrode, specifically developed for YC6MK series CNG/LNG natural gas engines, with thread specification M12x1.25 long thread 26.5mm. Widely compatible with Yutong buses, heavy trucks/Shaanqi heavy trucks and Yuchai gas generator sets, strong ignition energy, corrosion resistance, life over 50,000 km, TS16949 certified, support bulk inquiries.