Ignitions and Electrical› Ignition Components

16

Double Platinum Spark Plug Set

$115.81

SKU: 6639MF3YBSHN5RXZT9QTDM38VG

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Autolite 16-piece Double Platinum Spark Plug is designed for superior durability and performance in Distributorless Ignition Systems (DIS) engines. Its platinum-to-platinum design minimizes gap erosion, reduces misfires, and extends the spark plug's lifespan.

These spark plugs feature a super conductive Yttrium-enhanced ground electrode for efficient heat transfer. Autolite has a long history of producing quality ignition products, with over 10 billion spark plugs manufactured since its inception in 1936.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand16
Part Number6639MF3YBSHN5RXZT9QTDM38VG
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy