BECK/ARNLEY SX-DB95 Engine Coolant Temperature Switch

( Brand: Beck/arnley ), ( Manufacturer Part Number: SX-DB95 ), ( Ipn: C536 78-24 ), ( Placement On Vehicle: Belts Cooling Switches ), ( Compatible Year: 2003 2002 ), ( Core Charge: Free No Core Charge ), ( Type: Engine Coolant Temperature Switch ), ( Universal Fitment: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Beck Arnley Engine Coolant Temperature Switch )

Review BECK/ARNLEY Engine Coolant Temperature Switch Infiniti fits I35 SS 2002–2003

The **Beck/Arnley SX-DB95 Engine Coolant Temperature Switch** is a high-quality, direct-fit replacement designed specifically for the **2002 2003 Infiniti I35**, ensuring reliable performance and seamless integration into your vehicle s cooling system. This precision-engineered switch is crafted from durable materials, including a robust metal housing and a high-grade internal sensor, to withstand the demanding conditions of continuous engine operation. The switch operates as a critical component in your vehicle s temperature monitoring system, detecting coolant temperature fluctuations and sending accurate signals to the engine control module (ECM) to regulate fan operation, fuel mixture, and ignition timing for optimal efficiency and protection against overheating. Built to meet or exceed OEM specifications, the SX-DB95 features a **direct-fit design** with the correct pin configuration and wiring harness compatibility, eliminating the need for modifications or additional adapters. Its **resistor-based construction** ensures consistent and repeatable performance, providing a dependable alternative to generic or aftermarket alternatives that may lack precision. Whether you re restoring a classic I35 or addressing a malfunction in an existing vehicle, this switch delivers the reliability and accuracy needed to maintain peak engine performance while extending the lifespan of your cooling system components. Trusted by mechanics and enthusiasts alike for its **durability, precision, and compatibility**, the Beck/Arnley SX-DB95 is the ideal choice for restoring confidence in your Infiniti s cooling and temperature management.

**Pros and Cons of buying a Beck/Arnley SX-DB95 Engine Coolant Temperature Switch for a 2002-2003 Infiniti I35**

The Beck/Arnley SX-DB95 engine coolant temperature switch is a widely recognized aftermarket part with several advantages for your 2002-2003 Infiniti I35:

1. **Direct Replacement Fit** This switch is designed as a direct drop-in replacement for the OEM coolant temperature sensor/switch found in your Infiniti I35, ensuring compatibility without modifications. The part number (SX-DB95) aligns with the factory specification, reducing the risk of installation issues.

2. **Reliability and Durability** Beck/Arnley is a reputable brand known for producing high-quality automotive sensors and switches. Their components are built to withstand the demands of modern engines, reducing the likelihood of premature failure compared to cheaper, no-name alternatives.

3. **Accurate Temperature Readings** A properly functioning coolant temperature switch ensures that your vehicle s engine control module (ECM) receives accurate temperature data. This is critical for optimal fuel injection, ignition timing, and overall engine performance. A faulty switch can lead to poor cold starts, rough idling, or even stalling.

4. **Compatibility with Aftermarket Tuning** If you plan to modify your engine or install an aftermarket tune, a reliable temperature switch is essential. It helps the ECM adjust parameters correctly, preventing issues like rich/lean conditions or incorrect timing.

5. **Ease of Installation** The switch is straightforward to replace, requiring only basic tools. Most users can complete the job in under an hour, especially if they have experience with basic engine maintenance. The part comes pre-wired, and the installation typically involves removing the old switch, cleaning the threads, and securing the new one in place.

6. **Widely Available and Affordable** Compared to OEM parts, the Beck/Arnley switch is often priced competitively while maintaining high quality. It is readily available through online retailers, auto parts stores, and specialty performance shops, making it convenient to source.

7. **Positive User Feedback** Many owners of the 2002-2003 Infiniti I35 report success with this specific part, citing improved engine performance, smoother operation, and long-term reliability after replacement. Reviews often highlight its ability to resolve issues like check engine lights (P0115, P0116, or P0117 codes) related to coolant temperature sensor malfunctions.

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1. **Potential for Counterfeit Parts** Like many popular aftermarket components, there is a risk of purchasing a counterfeit or low-quality knockoff, especially when buying from untrusted sellers. Always verify the seller s reputation, check for authenticity seals, and ensure the part is new and unopened. Buying from well-known retailers (e.g., RockAuto, Amazon, or local auto parts stores with return policies) minimizes this risk.

2. **Mismatched Threads or Gasket Issues** In rare cases, the threads on the switch or the gasket sealing it to the engine block may not align perfectly with the OEM specifications. This could lead to leaks or difficulty securing the switch in place. Using thread sealant (like dielectric compound) and ensuring the threads are clean can help prevent this.

3. **Limited Warranty** Beck/Arnley typically offers a limited warranty (often 12 months or lifetime), but the coverage may not extend to labor or indirect issues caused by installation errors. Always confirm the warranty terms before purchasing.

4. **Compatibility with Modifications** If your Infiniti I35 has been heavily modified (e.g., forced induction, custom fueling, or extensive wiring changes), the temperature switch may need to be paired with additional components (like a custom sensor or wiring harness) to ensure compatibility. In such cases, consulting with a professional or performance tuner is advisable.

5. **Potential for Overheating if Ignored** While the switch itself is reliable, neglecting other cooling system components (e.g., thermostat, radiator, coolant, or hoses) could still lead to overheating. Replacing just the switch without addressing underlying issues may provide temporary relief but not a permanent solution.

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The Beck/Arnley SX-DB95 engine coolant temperature switch is an excellent choice for owners of a 2002-2003 Infiniti I35 experiencing issues with their coolant temperature sensor. Its direct compatibility, reliability, and ease of installation make it a practical and cost-effective solution for resolving check engine lights, poor engine performance, or temperature-related drivability problems. The brand s reputation for quality ensures that you re unlikely to encounter premature failure, provided the part is genuine and installed correctly.

However, it is essential to source the part from a trusted retailer to avoid counterfeit items and to perform a thorough installation, including checking for leaks and ensuring proper sealing. If your vehicle has been modified or exhibits other cooling system symptoms, addressing those issues concurrently will maximize the benefits of the replacement.

- Illuminated check engine light with codes P0115, P0116, or P0117.

- Poor cold starts, rough idling, or stalling.

- Inaccurate temperature gauge readings.

- Engine running lean or rich due to incorrect temperature data.

1. **Verify the Part Number:** Ensure the SX-DB95 matches your vehicle s requirements by cross-referencing with your Infiniti s service manual or a trusted online resource.

2. **Buy from a Reputable Source:** Purchase from a well-known auto parts retailer (e.g., RockAuto, Amazon, or a local shop with a good return policy) to avoid counterfeit parts.

3. **Prepare for Installation:** Gather basic tools (socket set, thread sealant, and a new gasket if needed), and follow a step-by-step guide or video tutorial for installation.

4. **Reset the ECM:** After replacement, clear any stored codes using an OBD-II scanner to ensure the new switch is properly recognized.

5. **Monitor Performance:** Drive the vehicle and observe for improvements in engine operation. If issues persist, inspect other cooling system components.

**Final Verdict:** The Beck/Arnley SX-DB95 is a **highly recommended** replacement part for this application, offering a balance of quality, affordability, and ease of use. With proper installation and sourcing, it will likely resolve your coolant temperature-related issues effectively.

Details:

Beck Arnley Engine Coolant Temperature Switch for 2002 - 2003 Infiniti I35 Ss: Status: In Stock.

part #: sxdb95 prices

• $16.23-$20.49

specifications ocoosys:

• for models: I35, Ss
• for makes: Infiniti
• for years: 2002-2003
• brand: Beck/arnley
• mpn: Sx-db95
• ipn: C536 78-24
• placement on vehicle: Belts Cooling Switches
• compatible year: 2003 2002
• core charge: Free No Core Charge
• type: Engine Coolant Temperature Switch
• universal fitment: Direct Replacement
• bundle description: 1 Pc Genuine Beck Arnley Engine Coolant Temperature Switch

shipping ocoosys:

• type: Fixed
• class: Standard, Expedited
• transit: 2-7 Days
• cost: $0.00
• service: Standard, Expedited

general ocoosys:

• condition: New
• Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components

seller ocoosys:

• city: Indianapolis, Indiana
• rating: 99.6%
• # reviews: 659481

returns ocoosys:

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

offer ocoosys:

• sold: 0
• started: May 21, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 6

payments ocoosys:

• other
• wallet: Google-pay
• credit card: Diners-club

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