High Quality Spark Plugs
High quality spark plugs for a combustion engine. Spark plugs ignite the fuel/air mixture to move the pistons.
The High Quality Spark Plugs engine part in Rust is tier 3 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 3 Workbench, and its blueprint costs 20 scrap to research.
About the High Quality Spark Plugs
The engine runs only when every one of its slots holds a part and none of them is broken. It has 140 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 8 other unlocks: Medium Quality Spark Plugs, Low Quality Spark Plugs, Engine Vehicle Module, Modular Car Lift, Small Rechargeable Battery, Large Solar Panel and 2 more. Only one vendor sells it: the Vehicles Extra for 70 scrap.
Engine stats from the High Quality Spark Plugs
With parts of this tier in every slot that raises acceleration, an undamaged engine reaches 100% 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 100%.
How to craft the High Quality Spark Plugs
Crafting one takes 5 seconds at a Level 3 Workbench and costs 120 × Metal Fragments.
120 
Level 3 How to get the High Quality Spark Plugs blueprint
Research it for 20 scrap, or unlock it on the Level 1 tech tree for 9 Blueprint Fragments in total.
1 Item 
20 Scrap Blueprint 20 
Node 
1 Blueprint Fragment Unlocked 9 How to repair the High Quality Spark Plugs
A full repair at a Repair Bench costs 25 × Metal Fragments, and you need its blueprint.
×25 What the High Quality Spark Plugs recycles into
A green recycler always gives back 60 × Metal Fragments for one.
×60 ×72 
×90 
×48 
Cockpit With Engine Vehicle Module
Engine Vehicle ModuleThe car modules with an engine, where a part like this one goes.
Shops that hand it out
Vehicles ExtraShop×1for70 (35–140)ScrapStats checked against the Rust game files on 14 November 2026.
