NTK 22056 Oxygen Sensor - Downstream

Direct Fit Oxygen Sensor for Ford and Mercury

NTK Oxygen Sensor 22056 is a direct fit, heated oxygen sensor built for specific downstream applications. It is engineered for 1996-2003 Ford Escort and 1996-1999 Mercury Tracer models, with OE-style fit, form, and function for the B1S2 position.

As part of NTK’s Direct Fit Oxygen Sensor line, this sensor reflects the brand’s focus on original equipment coverage and application-specific design. NTK uses ceramic manufacturing expertise and extensive production testing to help deliver consistent signal performance and reliable emissions-system operation.

Key Features

• Direct fit oxygen sensor for specific vehicle applications
• Heated sensor design for faster operating readiness
• 4-wire configuration with a 23.5 in. wiring harness
• Threaded mounting type with 18 mm thread diameter
• OE-style replacement for downstream B1S2 locations
• Built by NTK, a major original equipment oxygen sensor supplier

Detailed Product Information

NTK 22056 is a specific-fit oxygen sensor for the downstream position on Ford Escort and Mercury Tracer applications. It is intended for vehicles that use a threaded, heated, 4-wire sensor with an 18 mm thread diameter and a 23.5 in. harness length. For shoppers searching for a Ford Escort downstream oxygen sensor or a Mercury Tracer B1S2 oxygen sensor, this part number provides a direct replacement path with OE-style specifications.

This part cross-references Bosch 15719 for the same application. It also cross-references DENSO Auto Parts 234-4611 for the same application.

Common Problems This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture readings from a worn downstream sensor
• Reduced emissions-system monitoring accuracy
• Slow sensor response caused by age or contamination
• Need for a direct-fit replacement on Ford Escort or Mercury Tracer

Installation Notes and Tips

Confirm the vehicle year, engine configuration, and downstream B1S2 location before ordering. This NTK oxygen sensor 22056 uses a threaded mounting design, so the exhaust bung and connector routing should match the original sensor layout. Verify harness length and wire count against the removed part to ensure proper fitment on 1996-2003 Ford Escort and 1996-1999 Mercury Tracer applications.

Quality Assurance

NTK manufactures oxygen sensors with OE application coverage and production testing to help meet or exceed original equipment specifications. The brand’s direct fit line is backed by its role as a major original equipment sensor supplier and its ceramic technology expertise.

• Fits 1996-2003 Ford Escort, downstream
• Fits 1996-1999 Mercury Tracer, downstream