1. Engine Cooling Components Deals
  2. sku: 20709485605181731
  3. TRQ COOLANT TEMPERATURE SENSOR 57RWGY

TRQ COOLANT TEMPERATURE SENSOR 57RWGY Water

fits make: Gmc. year: 1988–2000.

57rwgy Trq Coolant Temperature Sensor Water Fits Gmc C3500 1988-2000

( Brand: Trq Coolant Temperature Sensor ), ( Manufacturer Part Number: 57RWGY ), ( Part Type: Water Temperature Sensor ), ( Engine: 7.4l V8, 5.7l V8 ), ( Compatible Make/model: Gmc C3500 ), ( Compatible Years: 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 ), ( Fitment Info: Coolant Temperature Sensor ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review TRQ COOLANT TEMPERATURE SENSOR Water Gmc fits C3500 1988–2000

The **57RWGY Coolant Temperature Sensor** is a precision-engineered component designed specifically for GMC C3500 trucks manufactured between the model years **1988 and 2000**, ensuring optimal performance and reliability in your vehicle s cooling system. This high-quality sensor is a critical part of your engine s temperature monitoring system, providing real-time data to the engine control unit (ECU) to regulate fuel delivery, ignition timing, and overall engine efficiency. Crafted with durable materials, the **57RWGY sensor** is built to withstand the demanding conditions of heavy-duty applications, offering long-lasting performance even under high-stress operating environments. Its robust construction minimizes the risk of corrosion, electrical failure, or mechanical wear, which are common issues with lower-quality aftermarket replacements. The sensor features a **threaded 1-inch M10 x 1.5** connection, compatible with the original equipment manufacturer (OEM) specifications, ensuring a secure and leak-free fit. Whether you're driving in extreme climates, towing heavy loads, or operating in off-road conditions, this sensor delivers accurate temperature readings, helping prevent engine overheating, fuel inefficiency, and potential long-term damage. Ideal for both restoration projects and routine maintenance, the **57RWGY Coolant Temperature Sensor** is a dependable choice for GMC C3500 owners seeking performance, durability, and peace of mind.

**Pros and Cons of Buying a Coolant Temperature Sensor (Part Number 57RWGY for GMC C3500 1988 2000)**

### **Pros:**

1. **Compatibility and Fit:** The 57RWGY sensor is a direct replacement for the original equipment sensor in your GMC C3500 (1988 2000), ensuring a proper fit without modifications. This reduces the risk of installation errors or compatibility issues.

2. **Reliability:** High-quality aftermarket sensors, especially those from reputable brands, are designed to match or exceed OEM standards in durability and performance. A reliable sensor prevents false readings that could lead to engine overheating or unnecessary diagnostic trouble codes (DTCs).

3. **Cost-Effective:** Replacing a faulty coolant temperature sensor is significantly cheaper than ignoring the issue. A failing sensor can cause the check engine light to illuminate, trigger unnecessary repairs (e.g., misdiagnosing fuel injection problems), or even lead to engine damage if the cooling system fails entirely.

4. **Easy Installation:** These sensors are typically straightforward to replace, requiring only basic tools. Many owners or even inexperienced mechanics can install it themselves, saving labor costs.

5. **Prevents Long-Term Damage:** The coolant temperature sensor monitors engine temperature and sends signals to the engine control unit (ECU). A faulty sensor can disrupt fuel-air mixtures, leading to poor performance, reduced fuel efficiency, or even catastrophic engine failure if the cooling system malfunctions.

6. **Warranty or Guarantee:** Many aftermarket sensors come with warranties or guarantees, providing peace of mind in case of premature failure.

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### **Cons:**

1. **Potential Counterfeit or Low-Quality Parts:** Some aftermarket sensors may be counterfeit or of inferior quality, leading to early failure or inconsistent readings. Purchasing from untrusted sellers increases this risk.

2. **Mismatched Specifications:** While the 57RWGY is a common part number, slight variations in resistance curves or electrical specifications between brands can occur. This may not affect functionality but could lead to minor inaccuracies in temperature readings.

3. **Diagnostic Challenges:** If the sensor is installed incorrectly (e.g., not properly tightened or sealed), it may send erratic signals, causing intermittent check engine lights or false readings. This can complicate troubleshooting if other issues arise.

4. **Limited Lifespan:** Like all sensors, coolant temperature sensors eventually wear out, especially in vehicles with poor coolant maintenance or frequent overheating. The replacement may need to be repeated after several years or miles.

5. **Cost of Replacement:** While individual sensors are affordable, if the issue stems from a larger problem (e.g., a failing water pump, radiator leak, or thermostat), addressing those problems may require additional upfront investment.

6. **DIY Risks:** For those unfamiliar with automotive repairs, improper handling during installation (e.g., damaging threads, using the wrong sealant, or over-tightening) could lead to leaks or further damage.

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### **Conclusion:**

Replacing a faulty coolant temperature sensor in your GMC C3500 (1988 2000) with a 57RWGY part is a practical and cost-effective solution to restore proper engine function and prevent long-term damage. The benefits of reliability, ease of installation, and compatibility outweigh the minor risks, provided you source the part from a reputable supplier and perform the installation carefully.

The primary drawbacks such as potential counterfeit parts or diagnostic headaches can be mitigated by purchasing from trusted brands (e.g., ACDelco, Bosch, or Motorcraft) and following manufacturer guidelines for installation. If you re unsure about the sensor s condition or suspect other underlying issues (e.g., coolant leaks, thermostat failure), a professional inspection may be worthwhile to avoid recurring problems.

### **Recommendation:**

1. **Verify the Sensor s Condition:** Before purchasing, confirm that the sensor is indeed faulty by testing it with a multimeter (check resistance at different temperatures or compare it to a known-good sensor). If you re unsure, a scan tool can help diagnose if the sensor is sending erratic signals.

2. **Choose a Reputable Brand:** Opt for a high-quality aftermarket sensor from brands with strong reputations for automotive parts, such as:

- ACDelco (GM s OEM brand)

- Bosch

- Motorcraft (Ford s OEM brand)

- Delphi

- OE-quality remanufactured sensors

3. **Follow Installation Best Practices:**

- Ensure the engine is cool before removing the sensor.

- Use a thread sealant or anti-seize compound if recommended (some sensors come pre-sealed).

- Tighten the sensor securely but avoid overtightening, which can strip threads.

- Replace the coolant cap and check for leaks post-installation.

4. **Monitor Post-Installation:** After replacement, clear any existing DTCs with an OBD scanner and monitor the engine for proper temperature readings and stable operation. If issues persist, inspect for leaks or other potential problems.

5. **Maintain Coolant System Health:** Regularly check coolant levels, flush the system every 50,000 100,000 miles, and address any signs of overheating (e.g., sweet-smelling coolant, steam from the hood) promptly to extend the lifespan of your sensor and cooling system components.

By taking these steps, you ll maximize the benefits of replacing your coolant temperature sensor while minimizing risks. For most owners, this is a straightforward and worthwhile repair that restores confidence in their vehicle s performance.

Details:

Wiring Harness Included: No. Terminal Quantity: TRQ Water Temperature Sensor fits GMC C3500 1988 - 2000 57RWGY: Brand: condition: New Product Specifications Connector Shape: Circular. Detailed Applications Years: Vehicle: Engine: 1994 - 2000 GMC C35 1988 - 1993 GMC C35007.4L V8, C35005.7L V8.

part #: 57rwgy price

  • $27.86

specifications ocoosys:

  • for makes: Gmc
  • for years: 1988-2000
  • brand: Trq Coolant Temperature Sensor
  • mpn: 57rwgy
  • part type: Water Temperature Sensor
  • engine: 7.4l V8, 5.7l V8
  • compatible make/model: Gmc C3500
  • compatible years: 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
  • fitment info: Coolant Temperature Sensor
  • manufacturer warranty: 12 Month Warranty
  • attention: Read Full Description To Confirm Fitment
  • cs-sku: 400

returns ocoosys:

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

general ocoosys:

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

shipping ocoosys:

  • transit: 3-7 Days
  • class: Economy
  • type: Fixed
  • service: Economy
  • cost: $0.00

offer ocoosys:

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

seller ocoosys:

  • rating: 99.1%
  • # reviews: 23580
  • city: Attleboro Falls, Massachusetts

payments ocoosys:

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for makes: gmc, for years: 1988-2000, part type: water temperature sensor, engine: 7.4l v8, 5.7l v8, compatible make/model: gmc c3500, compatible years: 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000, fitment info: coolant temperature sensor, manufacturer warranty: 12 month warranty, attention: read full description to confirm fitment, cs-sku: 400,
category: auto parts > car truck parts accessories > engine cooling components, sku: 20709485605181731,
Trq Coolant Temperature Sensor 57RWGY Is Similar To:
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4 offers $27.86–$27.86 USD
  • New. Offer #1 priced at $27.86 + $0.00 shipping estimate = $27.86* total. Connector Shape: Circular. 1994-2000 GMC C3500.FREE SHIPPING
  • New. Offer #2 priced at $27.86 + $0.00 shipping estimate = $27.86* total. FREE SHIPPING
  • New. Offer #3 priced at $27.86 + $0.00 shipping estimate = $27.86* total. FREE SHIPPING
  • New. Offer #4 priced at $27.86 + $0.00 shipping estimate = $27.86* total. FREE SHIPPING

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