Photo - Primary
Photo - out of package
Photo - out of package
Photo - out of package

NGK

NGK Cadillac Escalade 2005-2003 Direct Fit Oxygen Sensor

SKU: NGK21546
Barcode: 1008729515460

$52.54

In stock

This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!

Not sure it fits? Ask our fitment team — we check before it ships.

Authorized dealer — genuine parts only

Ships from our US warehouse

Fitment guaranteed or we take it back
NGK Cadillac Escalade 2005-2003 Direct Fit Oxygen Sensor

$52.54

$52.54

Tech Specs

Brand
NGK
SKU
NGK21546
Shipping weight
0.29 lb

NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

Related Tech Articles

How to Choose a Big Brake Kit Without Overbuying

How to Choose a Big Brake Kit Without Overbuying

Aug 25, 2026 11 min read

A big brake kit doesn't shorten your stopping distance — tires do. What it actually buys is heat capacity and pedal consistency. How to choose rotor diameter, piston area and pad compound, and when fluid and pads are the smarter spend.

Read the breakdown
Where Exhaust Power Actually Comes From

Where Exhaust Power Actually Comes From

Aug 25, 2026 11 min read

Almost every cat-back horsepower claim online is unsourced. Here's what an independent dyno test actually measured, why scavenging lives in the headers and not the cat-back, and where the power really is on a turbo car.

Read the breakdown
Coilovers vs Lowering Springs: How to Actually Decide

Coilovers vs Lowering Springs: How to Actually Decide

Aug 25, 2026 9 min read

Both lower the car — but the decision is really about the damper. Why stock dampers and aftermarket spring rates fight each other, when springs are genuinely the right call, and what each path costs you beyond the parts.

Read the breakdown