SUBARU SU-203 Cam Angle Sensors

( Manufacturer Part Number: SU-203 ), ( Type: Camshaft )

Review SUBARU Cam Angle Sensors Pair fits STI 2005

The Subaru SU-203 Cam Angle Sensors are crucial components of the Subaru Impreza WRX STI (2005 model) engine management system. These sensors play a vital role in ensuring optimal engine performance by continuously monitoring the position of the camshafts.

Each sensor is designed with a robust construction, featuring a compact housing with a protective boot to shield it from the harsh engine environment. The sensors use a high-temperature resistance material for their connections, ensuring they can withstand the extreme temperatures reached within the engine compartment.

The cam angle sensors employ a Hall Effect IC for precise and reliable measurement of the camshaft position. This technology provides consistent and accurate readings, even under heavy load or high RPM conditions. The sensors also come with built-in temperature sensors to monitor the operating temperature and ensure the sensors remain within their optimal working range.

These sensors are essential for the Subaru Impreza WRX STI's engine control unit (ECU) to optimize fuel injection, ignition timing, and valve timing. By providing real-time information about the camshaft position, the ECU can ensure the engine operates at peak efficiency and delivers powerful and responsive performance.

When it comes to installation, these cam angle sensors are designed to fit seamlessly into your Subaru Impreza WRX STI engine bay. They also come with new O-rings to ensure a secure seal and prevent any leaks.

In summary, the Subaru SU-203 Cam Angle Sensors are essential components of your Subaru Impreza WRX STI's engine management system. Their robust construction, precise Hall Effect IC technology, and built-in temperature sensors ensure reliable and accurate measurement of camshaft position, leading to optimal engine performance and responsiveness.

Buying aftermarket Subaru SU-203 2005 STI cam angle sensors involves weighing several pros and cons. Below is a discussion of each, followed by a conclusion and recommendation.

1. Cost-effective: Aftermarket sensors are generally less expensive than their OEM (Original Equipment Manufacturer) counterparts.

2. Improved Performance: Cam angle sensors help monitor engine performance, ensuring optimal ignition timing and fuel delivery. Installing new sensors can improve engine response and power.

3. DIY Savings: Installing aftermarket sensors yourself can save you labor costs.

4. Availability: Aftermarket sensors may be more readily available than OEM ones due to a larger market.

1. Potential for Incompatibility: Aftermarket sensors may not be an exact fit or may not function identically to OEM sensors.

2. Quality Concerns: The quality of aftermarket sensors can vary significantly, and some may not meet the same standards as OEM sensors.

3. Warranty: Aftermarket sensors typically do not come with a warranty from the manufacturer or the dealership.

4. Risk of Error: Installing aftermarket sensors yourself may result in errors if the installation process is not done correctly.

Buying aftermarket Subaru STI cam angle sensors can offer cost savings and potentially improved performance. However, there is a risk of incompatibility, quality concerns, and potential errors during installation. Ultimately, the decision to buy aftermarket sensors depends on your budget, technical expertise, and the desired performance improvement. If you're comfortable with the potential risks and are confident in your installation abilities, aftermarket sensors may be a good choice. If you prefer the peace of mind that comes with OEM parts and professional installation, consider purchasing from a Subaru dealership.

Details:

Part: Camshaft Angle / Cam Position Sensors Pair. Most engines will include Intake Manifolds, Fuel Injectors, Rails, and Sensors. You should expect to use your existing Intake Manifold, Exhaust Sensors, and Wiring Harness eliminate complications when installing the engine. IMPORTANT ENGINE WARRANTY INFORMATION Void if conditions are not met.

OEM used engine management components. CONDITION This is a used OEM sensor set in good working condition. Vehicle: 2005 Subaru STI. Please review all photos before purchasing.

This is a part replacement warranty only. OEM: Factory Original Engine Management Sensors. These sensors play a critical role in engine timing and performance by monitoring camshaft position sending data to the ECU for proper fuel injection ignition. Sold as a pair as shown.

Includes: Two 2 Cam Position Sensors. Even full frames and quarter panels. May require cleaning before installation. See the FAQ page for full warranty details.

Markings which appear on all our merchandise. Items may show normal signs of wear such as light dirt, surface marks, or residue from prior engine use. 2005 SUBARU STI CAMSHAFT POSITION SENSORS PAIR OEM ENGINE USED. Meaning-all engines are sold WITH OUT the Starter, Alternator, Power Steering Pump, Turbo, Supercharger, AC Compressor, Plastic Engine Covers, Wiring harness, Coil Pack, Distributor, Throttle Body, and Main Computer.

Engines are sold as a long block only and do not include any accessories or the transmission. Engine Warranty Requirements: Replace engine oil to manufacturers suggested level filter Flush coolers valve cover gasket pan gasket and main seal Timing Belt idler pulley Ensure motor is timed correctly before installation of Chain if mileage meets manufacture specifications thermostat inspect cooling system including radiator Install new spark plugs belts hoses Other procedures may apply. Sensors should be tested and properly installed by a qualified technician. DETAILS This is a genuine OEM pair of camshaft angle / cam position sensors removed from 2005 Subaru STI.

part #: su203 prices

• $63.41-$75.26

specifications cashalif:

• for models: Sti
• for makes: Subaru
• for years: 2005
• mpn: Su-203
• type: Camshaft

payments cashalif:

• credit card: Mastercard
• other
• wallet: Paypal

returns cashalif:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

seller cashalif:

• city: Avon, Mn
• # reviews: 814
• rating: 99.2%

shipping cashalif:

• transit: 2-5 Days
• service: Standard
• class: Standard
• cost: $10.00
• type: Fixed

general cashalif:

• condition: Used
• Engines Engine Parts > Valvetrain Components > Camshafts

offer cashalif:

• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: March 30, 2026
• sold: 0

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