The Medium Quality Spark Plugs are a vehicle component for any of the available modular vehicle engines. Facepunch added the modular vehicles in the Modular Vehicle Component Update on the 3rd of July, 2020.
Engine components, unlike modules themselves, may be added to a car in the field, or you can add them by having the vehicle raised on a powered Modular Car Lift.
All engines require a number of set components of assorted types for the vehicle to function.
Medium quality parts such as the Medium Quality Carburetor, Medium Quality Crankshaft, Medium Quality Pistons, Medium Quality Spark Plugs, and Medium Quality Valves are a considerable step up from the low quality counterparts, but still have room to improve to be on par with the high quality type.
The medium quality spark plugs promote the engine’s rate of acceleration, performing significantly better than its low quality predecessor. High quality components perform slightly superior to medium.
Medium quality car components may be researched and crafted exclusively at the Tier 2 Workbench.
For more information on modular vehicles, read our RUST Modular Cars Guide.