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How to Recycle Spark Plugs & Engine Components
Spark plugs, ignition coils, sensors, and small engine hardware. Premium plugs use platinum or iridium electrodes; coils and modules add copper windings and circuit boards.
Check local acceptanceCopper plugs: pennies in mixed scrap. Platinum/iridium: ask a precious-metal buyer (payouts vary and are often small). Coils/modules: core price or small e-waste payout.Last reviewed July 31, 2026
Quick answer
Spark plugs and small engine parts are scrap metal. Platinum and iridium plugs are worth sorting from copper plugs when a buyer wants them. Degrease when you can, then take them to a scrap yard, precious-metal buyer, or parts-store core program. Ceramics and coils may route through e-waste if the yard asks. Before you go, confirm that a local recycling center accepts the material in its current condition.
- Recycling route
- Check locally
- Typical value
- Copper plugs: pennies in mixed scrap. Platinum/iridium: ask a precious-metal buyer (payouts vary and are often small). Coils/modules: core price or small e-waste payout.
How to Prepare
- 1Remove parts with a cool engine
- 2Keep platinum/iridium plugs in a separate bag from copper plugs
- 3Wipe heavy grease so yards can grade the metal
- 4Pull plastic connectors off coils if an e-waste site wants boards bare
- 5Check core lists before scrapping reman-eligible sensors or coils
Where to Recycle
- Scrap metal dealers
- Precious-metal buyers that take spark plugs
- E-waste recyclers (coils, modules, sensors)
- Auto parts stores with ignition core returns
Special Instructions
Precious-metal buyers sometimes pay per plug for platinum/iridium tips; amounts vary and are often small. Standard copper plugs usually ride with mixed steel/nonferrous scrap. Ignition coils and electronic sensors fit e-waste or auto-electronics recycling better than bottle-bin metal.
Environmental Impact
Recovered platinum-group metals from plug tips return to industrial use. Copper from coils and steel shells recycle with other nonferrous and ferrous scrap.
Official guidance and resources
Accepted items and drop-off rules can vary by location. Check the destination before you go.
What’s Accepted
Accepted
- Copper, platinum, and iridium spark plugs
- Glow plugs from diesels (ask the buyer)
- Ignition coils and coil packs
- Cam/crank sensors and similar small electronics
- Steel brackets and fasteners from the job
Not Accepted
- Parts still dripping oil into a clean scrap bin
- Live airbag or pyrotechnic devices
- Full catalytic converters (separate material)
- Household trash for platinum plugs you could sell
Donation & Take‑Back Options
Estimated value: Copper plugs: pennies in mixed scrap. Platinum/iridium: ask a precious-metal buyer (payouts vary and are often small). Coils/modules: core price or small e-waste payout.
FAQs
Are platinum plugs worth sorting?
Yes if you have a buyer. Premium electrodes hold more platinum-group metal than copper plugs. Ask before assuming a fixed dollar-per-plug price.
Can I recycle ignition coils?
Copper windings and electronics go to e-waste or a scrap dealer that takes coils. Check core credit first.
Do yards want the ceramic insulator?
They buy the metal. Ceramics may be tolerated in a plug load or asked to be broken off. Follow the yard's rule.
What about oxygen sensors?
Some contain platinum-group metals and sell to specialty buyers; others go with e-waste. Ask before tossing.
Should oily plugs be cleaned?
Wipe them. Soaking solvent that becomes hazardous waste is usually not worth it for a few plugs.
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Recycle spark plugs & engine components
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