SKU: NGKDR8HS
UPC: 087295151235
MPN: DR8HS
The NGK Spark Plug Stock # 5123 (part number DR8HS) is a premium resistor-type spark plug engineered for reliable ignition across a broad range of small engines and automotive applications. Featuring a 12mm thread with 0.500-inch reach and gasket seat design, this spark plug delivers consistent cold-starting performance and stable combustion under varying load conditions. NGK's resistor technology suppresses electromagnetic interference, protecting modern engine management systems while maintaining optimal spark efficiency in both stock and modified engines.
The DR8HS is specifically engineered with a fine-wire center electrode and premium ceramic insulator that resist fouling and bridging—common causes of misfires and rough idle. The 12mm standard threading and gasket seat configuration ensure secure installation and proper combustion chamber sealing without requiring additional washers or adapters. This design translates to predictable spark timing, reduced emissions, and extended service intervals compared to non-resistor alternatives. The compact 1 x 0.75 x 3.25-inch form factor fits standard engine cavities without interference.
The NGK DR8HS is ideal for owners seeking OEM-equivalent or OEM-direct replacement spark plugs who prioritize dependable cold-start capability and consistent long-term performance. It serves riders, equipment operators, and vehicle owners maintaining aging inventory where proven reliability and broad compatibility matter more than exotic specifications. This spark plug is a direct fit for applications originally specifying NGK stock number 5123, making it a straightforward no-hassle replacement.
NGK's resistor spark plug technology has become the global standard across the automotive and small-engine markets. The DR8HS represents the brand's balanced approach to durability and performance—engineered to excel in service environments where cost, compatibility, and consistency outweigh specialized performance demands. Buyers choosing this plug expect trouble-free operation and broad OEM endorsement across engine manufacturers.
WARNING ⚠️
You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Purchasing a Firearm? Click HERE to see our firearm purchasing guide.
