Ignitions and Electrical Ignition Components

Denso

SPARK PLUG

$44.02

SKU: D00A 3457

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Denso 3457 is an iridium long-life spark plug featuring a 0.7mm iridium-tipped, laser-welded fine wire center electrode and a platinum-tipped ground electrode. Machine-rolled threads prevent seizing during installation.

Its design includes a five-rib insulator to prevent flashover and a copper-glass seal that bonds the center electrode and insulator for a gas-tight seal. The specifications include a 12mm thread diameter, 1.25mm thread pitch, gasket seat type, and a 26.5mm reach. The gap is set at .043" (1.1mm).

Fitment

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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

BrandDenso
Part NumberD00A 3457

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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