Easy — 1–2 hours
Description
The spark plug utilizes a high alumina ceramic insulator for superior insulation and thermal conductivity, along with a multi-rib insulator to prevent flash-over. The high nickel alloy side electrode resists wear, maintaining a precise gap over time, while the yttrium-enhanced ground electrode offers improved heat transfer. Its nickel-plated shell provides corrosion resistance for increased durability.
Fitment
Fitment Guaranteed
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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
| Brand | Autolite |
| Part Number | A035 AP425 |
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.
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