higherbro O2 Sensor Kit for Jeep Wrangler 1997–2000 (2PCS Upstream + Downstream) — OE-Style Fit, 1-Year Warranty

This higherbro two-piece oxygen sensor kit includes one upstream and one downstream O2 sensor engineered to restore accurate air-fuel readings on compatible 1996–2000 Chrysler, Dodge, Plymouth and Jeep models.

If your check-engine light points to oxygen sensor faults or your vehicle is running rich, an aging O2 sensor pair can be the cause. These plug-and-play sensors replace both pre- and post-catalyst units to help the engine control module receive correct exhaust-oxygen data. That supports smoother idle, more consistent fuel trims, and better emissions behavior when installed on matching applications.

Will this kit fit my Jeep Wrangler or other vehicles?

These two sensors are designed for a long list of late-1990s to 2000 vehicles with specific engines. Confirm fit by matching your vehicle year, make and engine size—common fits include Jeep Wrangler 2.5L and 4.0L, Jeep Cherokee/Grand Cherokee 4.0L, and many Dodge, Plymouth and Chrysler models from 1995–2000.

• Fits Jeep Wrangler 1997–1999 (4.0L) and 1997–2000 (2.5L)
• Compatible with Chrysler Cirrus, Dodge Stratus, Plymouth Breeze 1996–2000 variants
• Also fits multiple Dodge Ram and Dakota years and engine sizes listed for 1995–2000

How do upstream and downstream sensors differ, and why replace both?

The upstream (pre-catalyst) sensor measures raw exhaust oxygen to guide immediate fuel trim adjustments. The downstream (post-catalyst) sensor monitors converter efficiency. Replacing both ensures the engine control module gets accurate comparative readings so it can maintain efficient combustion and emissions control.

• Upstream sensor: real-time air-fuel feedback to the ECU
• Downstream sensor: verifies catalytic converter performance
• New pair avoids mismatched response times that can confuse diagnostics

What should I expect during installation and early operation?

Installation is typically straightforward: unplug the old sensors, remove them with the proper oxygen sensor socket, and install the new units using anti-seize where appropriate. After install, the engine may run briefly through adaptive fuel trims as the ECU relearns, and any stored OBD-II codes should clear once conditions are met.

• Requires basic hand tools and a sensor socket or wrench
• Allow the vehicle to complete a drive cycle for ECU relearn
• Check and clear codes after installation if your scan tool allows

What quality and warranty support comes with the higherbro sensors?

higherbro backs the sensors with a one-year unlimited-mileage quality guarantee to protect against manufacturing defects. Each sensor is built to meet OE-style fit and function so you can expect a consistent electrical connector, thread size and response profile suitable for the listed vehicles.

• 1-year unlimited mileage quality guarantee
• OE-style connectors and thread compatibility for direct replacement
• Sold as a matched upstream + downstream pair for compatible models

Who is this for: This higherbro 2PCS O2 sensor kit is aimed at DIY mechanics and professional technicians working on late‑1990s to 2000 Chrysler, Dodge, Plymouth and Jeep vehicles who need a matched upstream and downstream oxygen sensor replacement. It’s intended for owners who have confirmed vehicle compatibility and want an affordable OE-style swap to address OBD-II oxygen sensor codes, fuel-trim irregularities, or catalytic performance monitoring. Always verify engine size and year before ordering to ensure proper fit.