Ignitions and Electrical› Ignition Components

Denso

SPARK PLUG

$18.32

SKU: D00A 6057

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 6057 W9LM-US is a nickel U-groove spark plug designed for enhanced combustion. Its U-groove in the ground electrode promotes flame growth, leading to less dissipation and a larger flame front for more complete combustion, improving fuel efficiency and throttle response. It features machine-rolled threads to prevent seizing and 100% pre-fired quality assurance. The insulator is made of purified alumina powder for strength and thermal conductivity, with a five-rib design to prevent flashover and a copper-glass seal for a gas-tight bond.

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

BrandDenso
Part NumberD00A 6057

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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