Medium Quality Spark Plugs
Medium quality spark plugs for a combustion engine. Spark plugs ignite the fuel/air mixture to move the pistons.
The Medium Quality Spark Plugs engine part in Rust is tier 2 and raises a modular car engine's acceleration. It fits the engine of the Cockpit With Engine Vehicle Module (70 kW) and Engine Vehicle Module (95 kW). You craft it at a Level 2 Workbench, and its blueprint costs 20 scrap to research.
About the Medium Quality Spark Plugs
The engine runs only when every one of its slots holds a part and none of them is broken. It has 100 condition, and damage to the engine module wears down the parts inside it, spread at random among them.
On the tech tree it sits behind 7 other unlocks: Low Quality Spark Plugs, Engine Vehicle Module, Modular Car Lift, Small Rechargeable Battery, Large Solar Panel, Water Wheel and 1 more. Only one vendor sells it: the Vehicle Parts for 40 scrap.
Engine stats from the Medium Quality Spark Plugs
With parts of this tier in every slot that raises acceleration, an undamaged engine reaches 85% of its best there. Each engine stat is a quarter the engine module's health and three quarters the average quality of the parts that raise it, and this tier counts for 80%.
How to craft the Medium Quality Spark Plugs
Crafting one takes 5 seconds at a Level 2 Workbench and costs 70 × Metal Fragments.
70 
How to get the Medium Quality Spark Plugs blueprint
Research it for 20 scrap, or unlock it on the Level 1 tech tree for 8 Blueprint Fragments in total.
1 Item 
20 Scrap Blueprint 20 
Node 
1 Blueprint Fragment Unlocked 8 How to repair the Medium Quality Spark Plugs
A full repair at a Repair Bench costs 15 × Metal Fragments, and you need its blueprint.
×15 What the Medium Quality Spark Plugs recycles into
A green recycler always gives back 35 × Metal Fragments for one.
×35 ×42 
×52 50% 
×28 
Cockpit With Engine Vehicle Module
Engine Vehicle ModuleThe car modules with an engine, where a part like this one goes.
Where to find the Medium Quality Spark Plugs
Green Vehicle Parts Crate drops it, at 41%.
Shops that hand it out
Vehicle PartsShop×1for40 (20–80)ScrapStats checked against the Rust game files on 14 November 2026.
