AFR O2 Sensor Toyota 4Runner Hilux 2.7 3RZ 3.4 5VZ 89467-35030 AKAS

The AKAS AFR (Air Fuel Ratio) O2 Sensor is a precision 4-wire wideband upstream (pre-catalytic converter / Front) replacement for Toyota 4Runner (N180) and Hilux (N140/N150) equipped with 3RZ-FE 2.7L or 5VZ-FE 3.4L V6 petrol engines (2000-2004), replacing OE 89467-35030 (cross-ref 234-9001, 89467-34021, 89467-35011).

PETROL ONLY - not compatible with diesel engines. This upstream AFR wideband sensor measures exhaust oxygen concentration in real-time across a broad range to provide precise air-fuel ratio feedback to the ECU - critical for optimal combustion, fuel efficiency, power delivery, and emissions control on the 3RZ-FE/5VZ-FE engines. Premium high-temperature construction with anti-carbon and anti-corrosion coating ensures long service life. Plug-and-play 4-pin OE connector. Backed by a 6-month limited warranty.

1. 4-Wire Wideband AFR Upstream - Precise Air-Fuel Ratio Control This is a 4-wire wideband AFR (Air Fuel Ratio) sensor for the UPSTREAM (pre-cat / Front / Bank 1 Sensor 1) position, measuring exhaust oxygen concentration across a broad range for precise air-fuel ratio feedback to the ECU. Essential for optimal combustion, fuel efficiency, power delivery, and emissions compliance on 3RZ-FE 2.7L and 5VZ-FE 3.4L V6 engines. Replaces OE 89467-35030 (cross-ref 234-9001).

2. Exact OE Match - Toyota 4Runner/Hilux 2.7/3.4 V6 Petrol Only Precision upstream direct-fit AFR sensor for Toyota 4Runner (N180) 2000-2004 and Hilux (N140/N150) 2000-2004 with 3RZ-FE 2.7L or 5VZ-FE 3.4L V6 petrol engines. 1:1 OE dimensions, 4-pin OE connector, M18x1.5 thread - no modification, splicing, or adapter needed. PETROL ONLY - not compatible with diesel engines or downstream (post-cat) position.

3. Fast Light-Off & Precision - Restores Performance & Clears CEL Integrated heating element brings the sensing element to operating temperature in under a minute, ensuring accurate oxygen concentration readings even during cold starts and short urban trips. Fast-response wideband signal module transmits reliable AFR data to the ECU, restoring optimal combustion, improving fuel economy, restoring power and throttle response, and clearing check engine lights (P0130/P0135/P0171/P0174 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 exhaust conditions. Anti-carbon-build-up and anti-corrosion surface treatment resists erosion from hot exhaust fumes, carbon 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 detection accuracy, rapid signal feedback, solid high-heat tolerance, and anti-vibration capability - performing comparably to the Denso OE AFR sensor at a fraction of Toyota main dealer cost. Backed by a 6-month limited warranty covering manufacturing defects. For South African Toyota 4Runner/Hilux owners - where Hilux remains South Africa's best-selling vehicle and 4Runner is a popular rugged SUV, and upstream AFR sensor failure is a common cause of poor fuel economy, rough idle, reduced power, and failed emissions/roadworthy tests.

Product Specifications

Product Type: AFR (Air Fuel Ratio) O2 Lambda Sensor / Wideband Oxygen Sensor

Sensor Type: Wideband AFR (Air Fuel Ratio) - 4-Wire

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

Primary OE: 89467-35030

Connector: 4-Pin OE-Matching (Plug-and-Play)

Mounting Thread: M18 x 1.5

Heating: Integrated Heater (Fast Light-Off)

Signal Output: Wideband AFR (Linear 0-5V / Current Mode)

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 - 2.7L/3.4L V6 PETROL ONLY

Toyota:

- 4Runner (N180) (2000-2004) - 3RZ-FE 2.7L / 5VZ-FE 3.4L V6

- Hilux (N140/N150) (2000-2004) - 3RZ-FE 2.7L / 5VZ-FE 3.4L V6

Engine Compatibility

Engine Family: 3RZ-FE (VVT-i) / 5VZ-FE (VVT-i)

Displacement: 2.7L (2694cc) Inline-4 / 3.4L (3378cc) V6 Petrol

Power: 3RZ-FE: 112-120kW / 5VZ-FE: 140-150kW (varies by market)

Fuel: Petrol Only

NOT compatible with: Diesel engines (1KD-FTV, 2KD-FTV, 5L-E)

NOT compatible with: Other displacements (2.0L, 2.4L, 4.0L)

NOT compatible with: Downstream (post-cat) position

OE Cross-Reference

Primary OE: 89467-35030

Cross-Reference: 234-9001, 89467-34021, 89467-35011, 89467-35040, 89467-35050, 89467-35060

Note: Verify original OE number, engine code, and position (upstream vs downstream) before purchase.

2.7L/3.4L V6 PETROL ONLY - VERIFY COMPATIBILITY: This upstream AFR sensor fits ONLY Toyota 4Runner (N180) and Hilux (N140/N150) with 3RZ-FE 2.7L or 5VZ-FE 3.4L V6 petrol engines (2000-2004), replacing OE 89467-35030 in the UPSTREAM (pre-cat / Front / Bank 1 Sensor 1) position. NOT compatible with diesel, NOT with other displacements, NOT for downstream (post-cat) position, NOT for other OE numbers. Check original OE number, engine code, and sensor position before purchase.

AFR WIDEBAND - NOT A NARROWBAND O2 SENSOR: This is an AFR (Air Fuel Ratio) wideband sensor, electrically and functionally different from a standard 4-wire narrowband oxygen sensor. Do NOT substitute with a narrowband O2 sensor - it will cause incorrect readings, persistent check engine lights, and potential ECU damage. Verify the connector pin count (4 pins) and wiring before installation.

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-fouled, clean/repair before installation.

HANDLE WITH CARE: Do not drop, bend cable sharply, or touch the sensing element with bare fingers. Do not apply solvents, brake cleaner, or carburettor cleaner to the sensor element. Apply copper anti-seize to threads only - avoid contact with the sensing element and 4-pin connector.

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, wrong position (downstream), modification, or normal wear. This is an aftermarket replacement part - not affiliated with or manufactured by Toyota or Denso.

What's in the box
1 x AFR O2 Sensor (4-Wire Wideband Upstream, 2.7 3RZ-FE / 3.4 5VZ-FE V6, OE 89467-35030)