1. Chevrolet Climate Controls & Control Units To Buy
  2. sku: 11661810466788603
  3. STANDARD PRODUCTS 37724WFZW

STANDARD MOTOR PRODUCTS 37724WFZW Control Relay Smp A/c

fits model: 2500, Silverado. make: Chevrolet. year: 1999–2004.

37724wfzw Standard Motor Products For 1999-2004 Chevrolet Silverado 2500 A/c Control Relay Smp 2000 2001

( Brand: Standard Motor Products ), ( Manufacturer Part Number: 37724WFZW ), ( Part Type: Control Motor ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: A/c Compressor Control Relay ), ( Years: 1999 2000 2001 2002 2003 2004 ), ( Application: Chevrolet Silverado 2500 A/c Control Relay ), ( Cs-sku: 400 )

Review STANDARD MOTOR PRODUCTS Chevrolet A/c Control Relay Smp fits SILVERADO 2500 1999–2004

The **Standard Motor Products 37724WFZW** is a high-performance, direct-fit **A/C Control Relay** meticulously engineered to restore optimal climate control functionality to **1999-2004 Chevrolet Silverado 2500 HD** models equipped with the **SMP 2000 or 2001 A/C systems**. Designed to replace the factory OEM relay with precision, this relay ensures seamless operation of the air conditioning system, eliminating common issues such as intermittent cooling, erratic fan speeds, or complete A/C failure. Crafted from durable, high-quality materials, this relay features a robust **SPDT (Single Pole Double Throw)** configuration, allowing it to effectively switch power to the A/C compressor clutch and other related components while maintaining reliable electrical continuity. Its **direct-fit design** guarantees an exact match to the original equipment relay, ensuring a perfect installation without the need for modifications or additional wiring adjustments. Whether addressing a malfunctioning relay that has caused repeated A/C system failures or serving as a proactive replacement to prevent future issues, this relay delivers dependable performance under the demanding conditions of heavy-duty truck applications. Ideal for mechanics, DIY enthusiasts, and fleet managers seeking a cost-effective yet high-reliability solution, the **37724WFZW** ensures that your Silverado s climate control system operates with the efficiency and responsiveness it was designed for.

### **Pros and Cons of Buying a Standard Motor Part Number 37724WFWZ (A/C Control Relay for 1999-2004 Chevrolet Silverado 2500 HD)**

#### **Pros:**

1. **Direct Fitment** This relay is specifically designed for the 1999-2004 Chevrolet Silverado 2500 HD, ensuring compatibility without modifications. It matches the pinout and electrical requirements of the factory relay, reducing the risk of installation errors.

2. **Reliability** Standard Motor is a well-known manufacturer of automotive electrical components, known for producing durable relays that handle high current loads without overheating or failing prematurely. The relay is designed to switch the A/C clutch circuit, which can draw significant current when engaged.

3. **Cost-Effective** Compared to OEM (original equipment manufacturer) relays, aftermarket parts like this one are often priced lower while maintaining similar performance. This makes it a budget-friendly solution for repairing A/C issues without sacrificing quality.

4. **Easy Installation** Relays are simple to replace, requiring only basic tools (screwdriver, wire cutters/strippers if needed). The part comes pre-wired for the correct connections, reducing the chance of wiring mistakes.

5. **Warranty Coverage** Standard Motor typically offers a warranty (often 1-2 years) on their relays, providing peace of mind in case of early failure due to manufacturing defects.

6. **Availability** This part is widely stocked by auto parts retailers (AutoZone, O Reilly, RockAuto, etc.) and online marketplaces (Amazon, eBay, RockAuto), ensuring quick access even for rare or discontinued models.

7. **Prevents Common Issues** A faulty A/C relay can cause intermittent A/C failure, clicking noises, or no power to the clutch. Replacing it with a known-good relay can resolve these symptoms and restore proper A/C function.

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#### **Cons:**

1. **Potential Counterfeit Risk** Some aftermarket parts, especially those purchased from third-party sellers (e.g., unverified eBay listings), may be counterfeit or low-quality knockoffs. This can result in early failure or poor performance. Always buy from reputable sellers or authorized dealers.

2. **Mixed Quality in Bulk Purchases** If purchasing in bulk or from discount retailers, there s a slight chance of receiving a defective unit. While rare, this is a risk when dealing with high-volume suppliers.

3. **No OEM Performance Guarantee** While Standard Motor relays are reliable, they may not match the exact lifespan of an OEM relay, which is built to last the vehicle s lifespan. However, for most drivers, the difference is negligible unless the relay is used in extreme conditions (e.g., frequent A/C cycling).

4. **Limited Customization** Unlike some high-end aftermarket parts, this relay does not offer customizable features (e.g., adjustable switching thresholds). It is a standard replacement with no additional functionality.

5. **Possible Compatibility Quirks** While the part is listed for your specific year/model, there s a small chance that wiring harnesses or mounting brackets may vary slightly between trims or aftermarket modifications. Always double-check the wiring diagram before installation.

6. **No Diagnostic Tools Included** If the A/C issue persists after replacing the relay, you may need additional diagnostics (e.g., checking the A/C clutch, compressor, or fuse) to identify the root cause. The relay replacement alone won t solve all A/C problems.

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### **Conclusion:**

The **Standard Motor 37724WFWZ A/C Control Relay** is an excellent choice for repairing A/C relay-related issues on your 1999-2004 Chevrolet Silverado 2500 HD. It offers a direct fit, reliable performance, and cost savings compared to OEM parts. The risks (primarily counterfeit parts or minor compatibility quirks) are minimal if purchased from a trusted source.

For most drivers, this relay will resolve intermittent A/C failures, clicking noises, or power issues to the clutch. However, if the problem persists after replacement, further diagnostics are warranted.

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### **Recommendation:**

1. **Purchase from a Reputable Source** Buy the relay from an authorized Standard Motor distributor, a trusted auto parts store (e.g., AutoZone, O Reilly), or a well-reviewed online retailer (e.g., RockAuto, Amazon). Avoid unknown sellers to avoid counterfeit parts.

2. **Verify Pinout and Wiring** Before installation, cross-reference the relay s pinout with your vehicle s wiring diagram (available in the owner s manual or online) to ensure correct connections. Miswiring can damage the relay or other components.

3. **Test the Relay** If possible, test the relay before installation by using a multimeter to check continuity or resistance in the correct positions (consult a relay testing guide). Alternatively, swap it with a known-good relay (e.g., from another relay in the vehicle) to confirm functionality.

4. **Inspect Related Components** While replacing the relay, check the following for potential issues:

- **Fuses** (A/C circuit fuse in the fuse box).

- **A/C Clutch** (listen for grinding or check for power to the clutch coil).

- **Pressure Switches** (low refrigerant can cause relay-related symptoms).

- **Ground Connections** (corrosion or loose grounds can affect relay performance).

5. **Consider a Relay Test Socket (Optional)** If you plan to replace relays frequently, a relay test socket can help diagnose issues without permanently swapping parts.

6. **Follow Installation Steps Carefully** Ensure the relay is securely mounted and connections are tight. Loose connections can cause intermittent failures.

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**Final Verdict:** **Buy the Standard Motor 37724WFWZ relay** if you re experiencing A/C relay symptoms and want a reliable, cost-effective solution. With proper installation and sourcing, it will likely resolve your issue. If the problem continues, expand diagnostics to the A/C system as a whole.

Details:

Enhanced Wear Resistance: Featuring brass or copper contacts where specified, our relays offer extended wear resistance, ensuring reliability even in high-stress applications. 12 Month Warranty Fitment Notes: Vehicle: 1999 - 2004 Chevrolet Silverado 2500. Renowned Global Manufacturer: As a global manufacturer of original equipment ignition Products, we maintain complete quality control throughout the manufacturing process from component to finished product. Parts Geek - For 1999 - 2004 Chevrolet Silverado 2500 A/C Control Relay SMP 37724WFZW 2000 2001: Review Fitment Notes to Ensure Proper Fit condition: New Brand: Standard Motor Products Notes: Compressor Terminal Quantity: 4 Mounting Hole Contents: Hardware Included: No Bracket Features: Built Last: Our relays feature high-quality composite housings that protect against harsh temperatures and the most demanding under-hood conditions, ensuring lasting reliability.

part #: 37724wfzw price

  • $22.09

specifications chvyacheatercontrols:

  • for models: 2500, Silverado
  • for makes: Chevrolet
  • for years: 1999-2004
  • brand: Standard Motor Products
  • mpn: 37724wfzw
  • part type: Control Motor
  • manufacturer warranty: 12 Month Warranty
  • notes: A/c Compressor Control Relay
  • years: 1999 2000 2001 2002 2003 2004
  • application: Chevrolet Silverado 2500 A/c Control Relay
  • cs-sku: 400

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general chvyacheatercontrols:

  • Car Truck Parts Accessories > Air Conditioning Heating > HVAC Controls Control Units
  • condition: New

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  • availability: In Stock
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for models: 2500, silverado, for makes: chevrolet, for years: 1999-2004, part type: control motor, manufacturer warranty: 12 month warranty, notes: a/c compressor control relay, years: 1999 2000 2001 2002 2003 2004, application: chevrolet silverado 2500 a/c control relay, cs-sku: 400,
category: auto parts > car truck parts accessories > air conditioning heating > hvac controls control units, sku: 11661810466788603,
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