Ignitions and Electrical› Ignition Components

NGK

NGK Buick Rainier 2005-2004 Direct Fit Oxygen Sensor

$98.65

SKU: N003 21054

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The NTK 21054 Oxygen Sensor is an upstream sensor designed to ensure optimal engine performance by accurately measuring exhaust gas oxygen levels. It plays a critical role in your vehicle's emission control system, helping to improve fuel efficiency and reduce harmful emissions. Manufactured to OE-level quality standards, this NTK sensor guarantees reliability and perfect fitment.

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

BrandNGK
Part NumberN003 21054

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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