Spark Plug Recycling: Extracting Platinum, Iridium & Other Precious Metals (Complete Guide)

Used spark plugs may seem like worthless automotive waste, but many contain small amounts of platinum, iridium, and other valuable metals. At Dingfeng Precious Metals Recycling, we specialize in refining these metals from old spark plugs, turning them into a profitable recycling opportunity.

This guide explains:

• Which spark plugs contain precious metals
• How much platinum or iridium they typically hold
• The best ways to recycle them for maximum profit

1. Which Spark Plugs Contain Precious Metals?

Not all spark plugs are created equal. The most valuable types for recycling include:

Platinum Spark Plugs

• Contain a small platinum disc on the electrode
• Common in many modern gasoline engines
• Brands: NGK, Bosch, Denso, AC Delco

Iridium Spark Plugs

• Feature a fine iridium tip for better performance
• Found in luxury and high-performance vehicles
• Brands: NGK Laser Iridium, Denso Iridium

Double Platinum Spark Plugs

• Platinum on both center and ground electrodes
• Higher precious metal content than standard platinum plugs
• Often used in GM, Ford, and European vehicles

Copper Core Spark Plugs (Low Value)

• Basic spark plugs with no precious metals
• Minimal recycling value

2. How Much Precious Metal Is in a Spark Plug?

The exact amount varies by brand and type, but average estimates are:

• Platinum plugs: 0.1 to 0.3 grams per plug
• Iridium plugs: 0.1 to 0.2 grams per plug
• Double platinum plugs: 0.3 to 0.5 grams per plug

Since iridium is rarer than platinum, it often commands a higher price per gram.

3. Current Market Value (2024 Prices)

Metal prices fluctuate, but as of 2024:

• Platinum: Approximately $30 to$35 per gram
• Iridium: Approximately $150 to$160 per gram

This means:

• 100 platinum spark plugs (0.2g each) = ~20g platinum ≈ $600–700
• 50 iridium spark plugs (0.15g each) = ~7.5g iridium ≈ $1,125–1,200

For the most accurate pricing, contact us for a real-time quote.

4. The Professional Recycling Process

Extracting precious metals from spark plugs requires specialized refining. At Dingfeng Precious Metals Recycling, we use:

1. Sorting & Collection – Separating high-value plugs from low-value ones.
2. Crushing & Chemical Refining – Safely extracting metals without environmental harm.
3. Assaying – Precisely measuring metal purity.
4. Fair Payout – You receive payment based on exact weight and current market rates.

Attempting DIY extraction (such as melting plugs at home) is dangerous and inefficient. Professional refining ensures maximum recovery and safety.

5. Where to Sell Used Spark Plugs?

We offer:

• Competitive prices (better than scrap yards)
• Eco-friendly, zero-waste processing
• Free shipping options for bulk orders

Start Recycling Today
Contact Dingfeng Precious Metals Recycling for a free quote.