Ignitions and Electrical› Ignition Components

Denso

SPARK PLUG

$19.15

SKU: D00A 3137

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 3137 is a U-Groove spark plug designed for improved combustion. Its U-shaped groove in the ground electrode allows the flame to grow, resulting in less dissipation and a larger flame front for more complete combustion. Machine rolled threads prevent seizing and cross-threading.

The spark plug features a purified alumina powder insulator for strength and thermal conductivity, a five-rib insulator to prevent flashover, and a copper-glass seal for a gas-tight connection. The center electrode is made of nickel with a projected standard type, and the ground electrode is also nickel with a U-Groove design.

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

BrandDenso
Part NumberD00A 3137

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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