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Walker 250-24516 Oxygen Sensor - Downstream or Upstream
Overview of Walker 250-24516 Oxygen Sensor for BMW Models
The Walker 250-24516 oxygen sensor is designed specifically for select BMW vehicles, including the 323i, 323is, and Z3 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the engine management system.
- Heated oxygen sensor with 4 wires for reliable operation
- Specific fit for BMW 323i, 323is, and Z3 models
- Threaded mounting type with 18.0 mm thread diameter
- Radiused polygon male connector for secure electrical connection
- Wiring harness length of 13.31 inches and overall length of 16.85 inches
- Wire gauge measurement of 20 for durability and signal integrity
Detailed Features and Specifications
This Walker Products OE oxygen sensor (part number 250-24516) is engineered with a heated sensor element to provide faster response times and improved emissions control. The sensor includes four wires, allowing for both sensor heating and signal transmission. Its radiused polygon male connector ensures a precise and secure fit, reducing the risk of electrical issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system of compatible BMW vehicles. The wiring harness length of 13.31 inches and overall length of 16.85 inches provide adequate reach and flexibility during installation.
Walker Products OE Brand Line Information
The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the original sensor installed on BMW 323i, 323is, and Z3 models. Choosing a Walker Products OE sensor helps maintain the integrity of the vehicle’s emissions system and engine management.
Common Applications and Issues Addressed
- Restores accurate air-fuel ratio readings for efficient combustion
- Helps resolve rough idling and engine hesitation caused by faulty sensors
- Reduces increased emissions and potential failed emissions tests
- Prevents check engine light triggers related to oxygen sensor faults
- Improves fuel economy by ensuring proper sensor feedback
Installation Notes and Tips
When installing the Walker 250-24516 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the connector matches the radiused polygon male design for a secure connection. Verify the wiring harness length and routing to prevent strain or interference with other components. Follow manufacturer torque specifications for proper sensor installation.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part number 250-24516 undergoes rigorous testing to comply with emissions regulations and OEM requirements. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.
| Brand | Walker |
|---|---|
| Part Number | 250-24516 |
| Position | Walker Products OE, Downstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 16.85 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 13.31 |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1999 | BMW | 323is | 2.5L | L6 | GAS | Downstream | Downstream oxygen sensor compatible with cylinders 4-6.; Walker Products OE |
| 1999 | BMW | 323is | 2.5L | L6 | GAS | Downstream | Downstream oxygen sensor for cylinders 1-3.; Walker Products OE |
| 1999 | BMW | 323is | 2.5L | L6 | GAS | Downstream | Cylinder 1-3 Downstream Oxygen Sensor; Walker Products OE |
| 1998 | BMW | 323i | 2.5L | L6 | GAS | Upstream | Install upstream oxygen sensor for optimal performance.; Walker Products OE |
| 1998 | BMW | 323is | 2.5L | L6 | GAS | Downstream | Downstream oxygen sensor compatible with cylinders 4-6.; Walker Products OE |
| 1998 | BMW | 323is | 2.5L | L6 | GAS | Downstream | Downstream oxygen sensor for cylinders 1-3.; Walker Products OE |
| 1998 | BMW | 323is | 2.5L | L6 | GAS | Downstream | Cylinder 1-3 Downstream Oxygen Sensor; Walker Products OE |
| 1998 | BMW | Z3 | 2.8L | L6 | GAS | Upstream | Oxygen sensor fits cylinders 1-3 for upstream installation.; Walker Products OE |
| 1998 | BMW | Z3 | 2.8L | L6 | GAS | Upstream | Upstream oxygen sensor for cylinders 4-6.; Walker Products OE |
| 1997 | BMW | Z3 | 2.8L | L6 | GAS | Upstream | Install upstream oxygen sensor for optimal performance.; Walker Products OE |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.