Ignitions and Electrical› Ignition Components

Denso

IRIDIUM SPK PLG

$78.04

SKU: D00A 5733

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 5733 is an Iridium Racing spark plug designed for demanding applications. It features a special hardened insulator that is 20% stronger and handles extreme compression and boost levels. The ultra-fine 0.4mm diameter iridium alloy center electrode reduces voltage requirements for improved ignition performance.

This spark plug also has a 100% platinum 0.8mm ground electrode to reduce wear under severe driving or race conditions. Its patented self-cleaning electrode design and silicone oil-coated insulator repel moisture and carbon buildup. Machine-rolled threads prevent seizing or cross-threading during installation.

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 5733

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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