QIYBONE Oxygen O2 Sensor Kit 4PCS for Jeep/Dodge/Chrysler/Ram 2001-2023 — Upstream & Downstream, OE Fit

This QIYBONE 4PCS oxygen sensor set (part numbers 234-4587 / 250-24253) provides four direct-replacement O2 sensors engineered to match original equipment fitment across a wide range of Jeep, Dodge, Chrysler and Ram models from 2001 through 2023. Each sensor is supplied with factory-style connectors and heat-resistant housings to fit upstream (pre-catalyst) and downstream (post-catalyst) locations, helping diagnostics and drivability when an aging or failed sensor triggers fault codes.

Which vehicles will these QIYBONE sensors fit?

The kit is compatible with many Chrysler Group engines and selected makes across Dodge, Jeep, Chrysler and Ram lines. It covers numerous model years and engine sizes — check the specific engine code and mounting location on your vehicle before ordering.

• Jeep: Grand Cherokee, Wrangler, Liberty, Compass, Patriot, Cherokee, Commander (various 2.4L–6.4L engines, 2001–2022).
• Dodge: Charger, Challenger, Durango, Grand Caravan, Dakota, Ram 1500/2500/3500 (multiple engines, 2000–2023).
• Chrysler & others: Chrysler 200/300, Pacifica, Town & Country and select Volkswagen/Mitsubishi/Ram models listed in compatibility.

How do I know if I need upstream or downstream sensors?

Upstream sensors (before the catalytic converter) monitor exhaust oxygen to adjust fuel trim; downstream sensors (after the converter) monitor catalyst efficiency. If you have P0130–P0167 or similar OBD-II codes, those point to specific circuit locations.

• Upstream: look for codes P0130–P0135 and fluctuating fuel trims or rough idle.
• Downstream: look for P0136–P0167 and reduced catalyst monitoring or constant post-cat errors.
• Replace sensors in matched sets when multiple sensors show age-related wear.

What are the key features and benefits of this four‑sensor kit?

QIYBONE sensors are made to match OEM dimensions and connector types so installation is straightforward and electrical compatibility is maintained. The set includes both upstream and downstream sensors so you can fully refresh oxygen sensing for up to two banks where applicable.

• OE-style connectors and heat-shielded housings for plug-and-play replacement.
• Sold as a set of four to cover upstream and downstream needs on many V6/V8 engines.
• Cross-referenced to common OE numbers like 234-4587 and 250-24253 for easier sourcing.
• Durable materials intended for exhaust exposure and long service life under normal conditions.

How difficult is installation and what should I prepare?

Installation difficulty ranges from moderate to straightforward depending on vehicle access and rust conditions. Basic hand tools and anti-seize for threads are recommended; in some cases a scan tool is useful to clear codes after installation.

• Recommended tools: O2 sensor socket, ratchet, penetrating oil for seized threads.
• Turn off engine and work on a cool exhaust to avoid burns; lift vehicle safely if necessary.
• Replace one sensor at a time to ensure correct wiring and avoid mixing upstream/downstream locations.

Who is this for: This QIYBONE 4PCS oxygen sensor kit is aimed at DIY mechanics, independent shops and fleet owners who need a full upstream/downstream sensor replacement for compatible Jeep, Dodge, Chrysler and Ram vehicles. It’s appropriate for customers addressing OBD-II oxygen sensor or catalyst efficiency codes, restoring proper fuel-trim feedback, or performing scheduled replacements to maintain emissions and engine performance. Always confirm the exact engine and sensor location against the vehicle’s service manual and the compatibility list before purchase.