HomeEmission Control > SensorsSpectra OS5004 Oxygen Sensor - Upstream
Part #: OS5004

Spectra OS5004 Oxygen Sensor - Upstream

Upstream
⚙️ 4 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$21.13Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mercedes-Benz, 300TE
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Spectra OS5004 Oxygen Sensor for Mercedes-Benz 300TE

The Spectra OS5004 oxygen sensor is designed specifically for the Mercedes-Benz 300TE, ensuring accurate emission control and optimal engine performance. This sensor helps maintain efficient fuel combustion by monitoring oxygen levels in the exhaust system.

  • Direct replacement oxygen sensor for Mercedes-Benz 300TE
  • Part number OS5004 for precise identification
  • Compatible with emission control systems to reduce harmful exhaust gases
  • Durable construction for reliable long-term operation
  • Engineered to meet OEM specifications for fit and function

Detailed Product Description

The Spectra OS5004 oxygen sensor is an essential component in the emission control system of the Mercedes-Benz 300TE. It measures the oxygen content in the exhaust gases and sends this data to the engine control unit (ECU). This information allows the ECU to adjust the air-fuel mixture for optimal combustion efficiency and reduced emissions. The sensor is manufactured to meet strict quality standards, ensuring compatibility and performance that align with the original equipment.

Common Applications and Issues Addressed

  • Helps correct rough idling and engine hesitation
  • Reduces increased fuel consumption caused by faulty oxygen sensors
  • Prevents emission test failures by maintaining proper exhaust gas readings
  • Addresses check engine light triggers related to oxygen sensor faults
  • Supports overall engine performance and fuel economy

Installation Notes and Tips

  • Ensure the vehicle is cool before sensor replacement to avoid burns
  • Use appropriate tools to avoid damaging the sensor or wiring
  • Verify the part number OS5004 matches the existing sensor before installation
  • Check for exhaust leaks that may affect sensor readings
  • Reset the ECU after installation to clear any error codes

Quality Assurance and Warranty

The Spectra OS5004 oxygen sensor is manufactured under stringent quality control processes to meet or exceed OEM standards. While specific warranty details may vary, Spectra typically offers coverage against defects in materials and workmanship. This ensures dependable performance and peace of mind when replacing the oxygen sensor on your Mercedes-Benz 300TE.

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993Mercedes-Benz300TE3.0LL6Upstream
1992Mercedes-Benz300TE3.0LL6Upstreamw/ 11 in. Long Harness
1991Mercedes-Benz300TE3.0LL6Upstreamw/ 11 in. Long Harness
1990Mercedes-Benz300TE3.0LL6Upstreamw/ 11 in. Long Harness

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

0095429217009542921764131482131261234310325517751890ES10268OS557SG520SG520T

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.