NGK For Cadillac Escalade 2014-2008 Direct Fit Oxygen Sensor

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Product Specification:

SKU:NGK21066

MPN: 21066

UPC: 10087295210663

Weight: 0.25 lb

Inventory: 18

Type: Oxygen Sensors

Vehicle Fitment

2008-2014 Cadillac Escalade, 6.2L V8 (downstream)
2008-2013 Cadillac Escalade EXT, 6.2L V8 (downstream)
2008-2014 Cadillac Escalade ESV, 6.2L V8 (downstream)
2008-2009 Chevrolet Avalanche, 6.0L V8 (downstream)
2008-2009 Chevrolet Suburban 1500, 6.0L V8 (downstream)
2008-2009 Chevrolet Tahoe (downstream)
2012-2013 GMC Yukon XL 1500/2500 (downstream) - confirmed via NGK's official fitment guide; broader GMC Yukon and Sierra HD year coverage is reported by some retailers but wasn't independently confirmed, so verify against your OE part number for those specific models

Fitment Notes

This is a downstream sensor position - confirm sensor location (upstream vs. downstream, bank 1 vs. bank 2) matches your vehicle's needs before purchasing
OE cross-reference: General Motors 12609457, 12611165, 92457789
Aftermarket cross-reference: ACDelco 213-4229 / 213-4230, Bosch 15698, Carquest 75-3968, Delphi ES20094 / ES20320, Denso 234-4256, Spectra Premium OS5453

Features

Dual-coated platinum sensing element increases longevity and response speed
Rapid heat-up design reaches operating temperature quickly to support closed-loop fuel control sooner after a cold start
OEM-specified connector and attaching hardware for straightforward installation
Corrosion-resistant housing protects the ceramic sensing element
Each sensor undergoes a multi-step test process to verify quality and durability

Specifications

Number of wires: 4
Mounting style: Threaded, thread-in
Thread diameter: 18mm
Wire length: 381mm / 15 in.
Connector type: OE type
Heated: Yes
Warranty: 60 days

Included Components

1x Oxygen Sensor

Product Description

The NGK/NTK 21066 is a 4-wire, heated oxygen sensor built as a downstream replacement for GM's 6.0L and 6.2L V8-powered full-size platform, covering the 2008-2014 Cadillac Escalade family and 2008-2009 Chevrolet Avalanche, Suburban 1500, and Tahoe, with additional confirmed coverage for the 2012-2013 GMC Yukon XL. Its dual-coated platinum sensing element is engineered for both longevity and fast response, helping the engine management system regulate air-fuel ratio accurately for efficient combustion and lower emissions.

Because the sensor heats up quickly, it reaches closed-loop operating temperature sooner after a cold start, which helps reduce cold-start emissions and lets the fuel system begin precise adjustments earlier in a drive cycle. The sensor ships with the OE-specified connector and mounting hardware already in place, so installation is a straightforward thread-in swap without adapters or splicing.

This is a solid OE-quality replacement for anyone dealing with a failed or degraded downstream oxygen sensor on one of these GM trucks or SUVs, manufactured to the same platinum-coated, ceramic-element design NGK/NTK uses across its OE-supply oxygen sensor line. If your vehicle is a GMC Sierra HD or a Yukon/Yukon XL outside the confirmed 2012-2013 range, cross-referencing your OE sensor part number is the safest way to confirm fitment before purchase.