Upstream AFR O2 Lambda Sensor Jeep Compass Patriot 2.0 CRD 5149027AA AKAS

The AKAS Upstream Wideband AFR O2 Lambda Sensor is a precision 5-wire heated pre-catalytic converter (front) wideband air-fuel ratio replacement for Jeep Compass (MK49), Patriot (MK74), and Dodge Journey (JC) equipped with 2.0 CRD diesel engines (2008-2014), replacing OE 5149027AA (cross-ref 68012050AA, Mercedes-Benz A0035427018, Bosch 0258017016 - 5-wire wideband, 560mm overall length).

DIESEL ONLY. This upstream (pre-cat / front / before catalytic converter / Regulating Sensor / Bank 1 Sensor 1 / Front Upper) wideband AFR sensor measures exact air-fuel ratio across a broad range (not just rich/lean switching), providing precise real-time lambda data to the ECU for optimal diesel combustion control, fuel efficiency, emissions reduction, EGR and DPF regeneration management - critical for modern diesel engines. Premium high-temperature construction with anti-carbon and anti-corrosion coating ensures long service life. Plug-and-play 5-pin OE connector. Backed by a 6-month limited warranty.

1. 5-Wire Wideband Upstream AFR - Precise Diesel Lambda Control This is a 5-wire heated wideband air-fuel ratio (AFR) oxygen sensor for the UPSTREAM (pre-cat / front / before catalytic converter / Regulating Sensor / Bank 1 Sensor 1 / Front Upper) position, measuring exact air-fuel ratio across a broad range (not just rich/lean switching) and providing precise real-time lambda data to the ECU. Essential for optimal diesel combustion control, fuel efficiency, emissions reduction, EGR and DPF regeneration management, and clearing P0130/P0131/P0134/P0135/P2237/P2238 upstream AFR sensor check engine lights. Replaces OE 5149027AA (cross-ref 68012050AA, Mercedes-Benz A0035427018, Bosch 0258017016).

2. Exact OE Match - Jeep/Dodge 2.0 CRD Diesel Only Precision upstream wideband AFR direct-fit sensor for Jeep Compass (MK49) 2.0 CRD 2008-2014, Jeep Patriot (MK74) 2.0 CRD 2008-2014, and Dodge Journey (JC) 2.0 CRD 2008-2011 with 1968cc 4-cylinder 16-valve diesel engines (103kW/140HP). 1:1 OE dimensions, 5-pin OE connector, M18x1.5 thread, 560mm overall length - no modification, splicing, or adapter needed. DIESEL ONLY - verify original OE number and sensor position before purchase.

3. Fast Light-Off & Wideband Precision - Optimizes Diesel Combustion & DPF Regen Integrated heating element brings the wideband sensing element to operating temperature in under 30 seconds, ensuring accurate air-fuel ratio readings even during cold starts and short urban trips. Fast-response wideband signal module transmits precise lambda data across a broad range to the ECU, optimizing diesel combustion control, improving fuel economy, reducing emissions, supporting proper EGR and DPF regeneration, and clearing check engine lights (P0130/P0131/P0134/P0135/P2237/P2238 series) caused by a faulty or ageing upstream AFR sensor.

4. Premium High-Temp Construction - Anti-Carbon, Long Lifespan Premium high-temperature alloy probe with oxidation-resistant outer shell delivers reliable performance under harsh diesel exhaust conditions (higher soot, EGR, and DPF regeneration temperatures than petrol). Anti-carbon-build-up and anti-corrosion surface treatment resists erosion from hot exhaust fumes, carbon/soot deposits, and oil/PCV impurities - significantly prolonging service life vs. uncoated cheap sensors that fail prematurely from carbon fouling. Waterproof/dust-proof integrated sealing and anti-vibration internal circuit ensure consistent performance.

5. OE Quality at Aftermarket Value - 6-Month Warranty Manufactured to strict OE specifications with dependable wideband detection accuracy, rapid signal feedback, solid high-heat tolerance, and anti-vibration capability - performing comparably to the Bosch OE sensor (0258017016) at a fraction of Jeep/Dodge main dealer cost. Backed by a 6-month limited warranty covering manufacturing defects. For South African Jeep/Dodge diesel owners - where Compass/Patriot/Journey 2.0 CRD are popular family SUVs/MPVs, and upstream wideband AFR sensor failure is a common cause of poor fuel economy, DPF regeneration issues, and failed emissions/roadworthy tests.

Product Specifications

Product Type: Wideband AFR O2 Lambda Sensor / Air-Fuel Ratio Sensor (5-Wire Heated)

Sensor Type: Wideband (Linear / Continuous Lambda) - NOT narrowband switching

Position: Upstream / Pre-Catalytic Converter / Front / Before Catalytic Converter / Regulating Sensor / Bank 1 Sensor 1 / Front Upper

Primary OE: 5149027AA (05149027AA)

Connector: 5-Pin OE-Matching (Plug-and-Play)

Mounting Thread: M18 x 1.5

Overall Length: 560mm

Heating: Integrated Heater (Fast Light-Off, <30s)

Signal Output: Wideband Linear (0-5V / Continuous Lambda)

Operating Temperature: Up to 750 C+ (Exhaust)

Body: High-Temp Alloy Probe + Oxidation-Resistant Shell

Coating: Anti-Carbon & Anti-Corrosion

Sealing: Waterproof & Dust-Proof Integrated

Compatible Models - DIESEL ONLY

Jeep:

- Compass (MK49) 2.0 CRD (2008-2014) - 103kW/140HP 1968cc

- Patriot (MK74) 2.0 CRD (2008-2014) - 103kW/140HP 1968cc

Dodge:

- Journey (JC) 2.0 CRD (2008-2011) - 103kW/140HP 1968cc

Engine Compatibility

Engine Family: 2.0 CRD (1968cc 4-cylinder 16-valve Turbo Diesel)

Displacement: 2.0L (1968cc) Inline-4 Turbo Diesel

Power: 103kW (140HP)

Fuel: Diesel Only (CRD / Common Rail Diesel)

Note: Verify original OE number and engine code before purchase.

OE Cross-Reference

Primary OE: 5149027AA (05149027AA)

Cross-Reference: 68012050AA, Mercedes-Benz A0035427018 (0035427018), Bosch 0258017016, BMW 13627791592

Note: This is a 5-WIRE WIDEBAND AFR sensor - do NOT substitute with a 4-wire narrowband O2 sensor. Verify original OE number, engine code, and sensor position (upstream vs downstream) before purchase.

DIESEL ONLY - VERIFY COMPATIBILITY: This upstream wideband AFR sensor fits Jeep Compass (MK49), Patriot (MK74), and Dodge Journey (JC) with 2.0 CRD diesel engines (2008-2014), replacing OE 5149027AA in the UPSTREAM (pre-cat / front / before catalytic converter / Regulating Sensor / Bank 1 Sensor 1 / Front Upper) position. DIESEL ONLY - not compatible with petrol engines. Verify original OE number, engine code, and sensor position before purchase.

5-WIRE WIDEBAND AFR - DO NOT SUBSTITUTE WITH 4-WIRE NARROWBAND: This is a 5-WIRE WIDEBAND AFR (air-fuel ratio) sensor that measures exact lambda across a broad range. Do NOT substitute with a 4-wire narrowband switching O2 sensor - they have different calibrations, wire counts, connector types, and signal outputs and are NOT interchangeable. Installing a 4-wire narrowband sensor in a wideband AFR application will cause incorrect readings, poor fuel economy, and persistent check engine lights.

UPSTREAM ONLY - DO NOT SUBSTITUTE FOR DOWNSTREAM: This is an UPSTREAM (pre-cat / front / before catalytic converter / Regulating Sensor / Bank 1 Sensor 1 / Front Upper) wideband AFR sensor. Do NOT install in the downstream (post-cat / rear / after catalytic converter / Diagnostic Probe / Bank 1 Sensor 2 / Rear Lower) position - upstream wideband AFR and downstream narrowband O2 sensors have different calibrations, wire counts, and connector types and are NOT interchangeable.

PROFESSIONAL INSTALLATION: Recommended for proper torque (30-45 Nm), correct cable routing away from heat sources and moving parts, and clearing of diagnostic trouble codes (DTCs) after replacement. Allow exhaust to cool completely (30-60 min) before servicing. Do not over-tighten. If the mounting bung thread is damaged or carbon/soot-fouled, clean/repair before installation.

WARRANTY: 6-month limited warranty covering manufacturing defects under normal use. Does not cover improper installation, drops, contamination, water ingress, use on incompatible vehicles/engines (petrol), wrong sensor type (4-wire narrowband), wrong position (downstream), modification, or normal wear. This is an aftermarket replacement part - not affiliated with or manufactured by Jeep, Dodge, Chrysler, Mopar, Mercedes-Benz, or Bosch.

What's in the box
1 x AKAS Oxygen Sensor OE 5149027AA Compatible Jeep Compass Patriot Dodge