Exterior Components› Body Panels and Components

Denso

IRIDIUM SPK PLG

$29.66

SKU: D00A 5381

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

Easy — 1–2 hours

Description

The Denso 5381 IWF27 is an Iridium Power spark plug. It features a 0.4mm iridium-tipped, laser-welded fine wire center electrode designed to reduce required voltage and improve firing performance. The spark plug has a U-Groove ground electrode with a tapered cut to enhance ignitability and minimize quenching. It also includes machine-rolled threads to prevent seizing or cross-threading during installation and removal.

Fitment

Fitment Guaranteed

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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 5381

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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