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SKU: 21066
NGK 21066 Direct Fit Oxygen Sensor for 2008-2014 Cadillac Escalade
The world’s leading supplier of OEM oxygen sensors, this sensor outperforms all competitors, delivering unmatched precision, durability, and efficiency. Designed for a seamless plug-and-play installation, the NGK 21066 ensures superior fit, form, and function, making it the top choice for Escalade owners seeking to restore peak performance, improve fuel economy, and pass emissions tests with ease. Backed by NGK’s renowned quality and a limited lifetime warranty, this oxygen sensor is the definitive upgrade for your luxury SUV.
Why NGK?
Precision: Features NTK’s advanced ceramic sensing element with a dual-coated platinum interface, providing the fastest activation times and precise oxygen measurements for optimal air-fuel ratio control—surpassing slower, less accurate aftermarket sensors.
Durability: Undergoes a rigorous 3-stage testing process, including vibration and thermal shock tests, ensuring reliability under extreme conditions, unlike inferior sensors prone to premature failure.
Emissions Compliance: Designed to meet or exceed OEM specifications, the NGK 21066 minimizes cold-start emissions and ensures smog test compliance, outperforming generic sensors that risk check-engine lights.
Quick Installation: Direct-fit design with OE-specified water-resistant connectors and harness hardware eliminates cutting or splicing, offering a hassle-free install compared to universal sensors requiring modifications.
Enhanced Performance: The integrated heater reaches operating temperature in seconds, enabling rapid closed-loop activation for improved fuel efficiency and reduced emissions, setting it apart from slower-responding competitors.
Trusted Brand: As the world’s largest OEM oxygen sensor supplier, NTK’s expertise ensures the 21066 delivers OE-quality performance, backed by decades of innovation and a limited lifetime warranty.
Included
The NGK 21066 Direct Fit Oxygen Sensor kit includes everything needed for a straightforward installation:
- (1) NGK/NTK Oxygen Sensor (Part Number: 21066)
- OE-Specified Water-Resistant Connector
- Harness Accessory Hardware
- Installation Instructions
- Limited Lifetime or 1-Year Warranty (non-transferable, requires original sales receipt)
Note: This sensor is designed for specific positions (e.g., upstream right or downstream left) depending on the vehicle’s configuration. Verify fitment by VIN or catalog search to ensure compatibility. Professional installation is recommended to ensure proper torque and connection.
Fitment
- Year: 2008-2014
- Make: Cadillac
- Model: Escalade
- Submodels: Base, Platinum, Luxury, Premium
- Engine: 6.2L V8 (Gas)
- Fitment for Related Models:
- Cadillac Escalade ESV (2008-2014, 6.2L V8, Base, Platinum, Luxury, Premium)
- Cadillac Escalade EXT (2008-2013, 6.2L V8, Base, Premium)
- Position: Upstream Right or Downstream Left (verify by VIN or catalog for exact position)
Fitment Notes:
- Compatible with 4-wire configurations and 16.5-inch (420mm) wire length.
- Not compatible with Escalade models equipped with 6.0L V8 or hybrid engines.
- Verify fitment using vehicle VIN or catalog search, as trim packages and build dates may affect compatibility.
- Cross-references with OEM part numbers: GM 12611165, 12609457, 92457789; ACDelco 213-4229, 213-4230; Bosch 15698; DENSO 234-4256; Delphi ES20094, ES20320.
Performance That Ranks #1
The NGK 21066 outperforms all other oxygen sensors by addressing the critical needs of the Cadillac Escalade’s 6.2L V8 engine. Unlike generic or universal sensors that lack NTK’s advanced ceramic technology, the 21066 features a contaminant-resistant plasma jet and deposit trap overcoat, protecting against silicone and lead poisoning for longer sensor life. Its rapid heating element ensures quicker closed-loop operation, reducing emissions and improving fuel economy compared to slower-activating competitors. Whether you’re cruising in luxury or towing heavy loads, this sensor ensures your Escalade runs at peak efficiency, avoiding costly repairs and maintaining its premium performance.
Purchase Details
- SKU: 21066
- UPC: 087295210666
- Weight: 0.3 lb (0.14 kg)
- Dimensions: 2.2" x 1.9" x 5.8" (5.5 cm x 4.8 cm x 14.7 cm)
- Condition: New
- Made in: Japan
- Warranty: Limited Lifetime or 1-Year Warranty (varies by retailer, confirm at purchase)
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