1. Engine Cooling Components Deals
  2. sku: 21172180553864752
  3. GM 22521772

GM 22521772 Ac Delco Engine Coolant Switch Level Sensor

fits year: 1982–1985.

22521772 Gm New Oem Ac Delco Engine Coolant Level Sensor Switch Fits 1982-1985

( Brand: Gm ), ( Manufacturer Part Number: 22521772 ), ( Part Type: Ac Switch Engine ), ( Oe/oem Part Number: Oem ), ( Vintage Part: Yes )

Review GM New Oem Ac Delco Engine Coolant Level Sensor Switch fits 1982–1985

The **GM 22521772 AC Delco Engine Coolant Level Sensor Switch** is a critical component designed specifically for General Motors vehicles manufactured between **1982 and 1985**, ensuring reliable temperature monitoring and coolant level detection within the engine bay. This sensor switch operates as part of the vehicle s cooling system, providing real-time feedback to the engine control module (ECM) to maintain optimal operating temperatures and prevent overheating a common yet potentially catastrophic failure in older GM models. Crafted with precision engineering, the unit features a **temperature-sensitive thermistor** embedded within its housing, allowing it to accurately gauge coolant levels and temperature fluctuations. When coolant drops below a safe threshold, the sensor switch triggers the **coolant level warning light** on the dashboard, alerting the driver to refill the system before potential engine damage occurs. Its robust construction, typically made from durable metal and sealed with corrosion-resistant materials, ensures longevity even in demanding environments, though exposure to extreme temperatures or prolonged neglect can eventually lead to wear. Replacement of this sensor is straightforward, requiring minimal tools and a few minutes of labor, making it a cost-effective solution for maintaining engine health in classic GM vehicles. Whether installed in a **Chevrolet, Pontiac, Buick, or Oldsmobile** from the early '80s, this sensor switch remains a dependable choice for restoring confidence in a vehicle s cooling performance.

**Pros and Cons of buying a GM 22521772 AC Delco Engine Coolant Level Sensor Switch (1982 1985 Models)**

### **Pros:**

1. **Direct Fitment** This part is specifically designed for GM vehicles from 1982 to 1985, ensuring compatibility without modification. It eliminates the need for customization or additional adapters, reducing installation complexity.

2. **Reliability** AC Delco is a trusted brand under General Motors, known for producing high-quality aftermarket automotive parts. The sensor switch is built to meet OEM standards, which can improve longevity and performance compared to cheaper, no-name alternatives.

3. **Prevents Coolant System Failures** The sensor switch monitors coolant levels and triggers the low-coolant warning light when levels are insufficient. Replacing a faulty unit prevents overheating, engine damage, or coolant system leaks, which can be costly to repair.

4. **Easy Replacement** The part is relatively straightforward to install, typically requiring only basic tools. Many DIYers can replace it without professional assistance, saving labor costs.

5. **Cost-Effective** While not the absolute cheapest option, it strikes a balance between affordability and quality. Replacing a failed sensor early can avoid more expensive repairs down the line, such as a blown head gasket or water pump failure.

6. **Widely Available** As an older but common part, it is readily available through auto parts stores (both online and in-person), dealerships, and specialty suppliers. This ensures easy access for replacement.

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### **Cons:**

1. **Age of the Part** The sensor switch is designed for vehicles from the early 1980s, which means it may not be as advanced as modern alternatives. Older components can sometimes be less durable or prone to failure over time, though this depends on the quality of the specific unit.

2. **Potential Counterfeit Risks** Purchasing from untrusted sellers (especially online marketplaces) could result in receiving a counterfeit or low-quality replica. Always buy from reputable suppliers to avoid this risk.

3. **Limited Longevity** Like all sensors, this part can wear out over time, especially if the vehicle has high mileage or has been subjected to harsh conditions (e.g., extreme temperatures, coolant contamination). Regular maintenance may be required to ensure it functions properly.

4. **Compatibility Concerns** While the part is designed for the specified GM models, slight variations in wiring or mounting between different trim levels or engine configurations could cause minor installation challenges. Always verify compatibility with your exact vehicle before purchasing.

5. **Replacement Frequency** If the original sensor frequently fails, it may indicate an underlying issue (e.g., coolant system leaks, electrical problems) that needs addressing. A recurring need for replacements could signal a deeper problem worth investigating.

6. **Price Sensitivity** For budget-conscious buyers, this part may be slightly more expensive than generic or no-brand alternatives. However, the trade-off is often better reliability and longevity.

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### **Conclusion:**

The GM 22521772 AC Delco Engine Coolant Level Sensor Switch is a solid choice for owners of 1982 1985 GM vehicles experiencing coolant level sensor issues. Its direct fitment, reliability, and ease of installation make it a practical solution for preventing coolant-related engine damage. However, buyers should ensure they purchase from a trusted source to avoid counterfeit parts and be mindful of potential underlying issues if the sensor fails repeatedly.

### **Recommendation:**

- **Buy from a reputable supplier** (e.g., RockAuto, AutoZone, local dealerships, or trusted online retailers) to guarantee authenticity and quality.

- **Inspect the coolant system** during replacement to check for leaks, corrosion, or other signs of wear that could contribute to sensor failure.

- **Consider pairing this with a coolant flush** if the vehicle s coolant is old or contaminated, as this can extend the life of the sensor and the entire cooling system.

- **If the sensor fails shortly after replacement**, investigate further (e.g., wiring, coolant leaks, or a faulty water pump) to address the root cause.

For most owners, this part provides a cost-effective and reliable fix for coolant level sensor issues, but proactive maintenance will ensure long-term reliability.

Details:

Thanks storage J. New in box fits many GM vehicles please view pics.

part #: 22521772 price

  • $64.80

specifications ocoosys:

  • for years: 1982-1985
  • brand: Gm
  • mpn: 22521772
  • part type: Ac Switch Engine
  • oe/oem part number: Oem
  • vintage part: Yes

shipping ocoosys:

  • transit: 4-10 Days
  • carrier: USPS
  • class: Standard
  • service: USPS Ground Advantage
  • type: Fixed
  • cost: $8.00

seller ocoosys:

  • city: Falconer, New York
  • rating: 99.9%
  • # reviews: 5018

returns ocoosys:

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

payments ocoosys:

  • credit card: Discover
  • other
  • wallet: Paypal

general ocoosys:

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

offer ocoosys:

  • best offers: True
  • started: April 21, 2026
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • quantity: 1
for years: 1982-1985, part type: ac switch engine, oe/oem part number: oem, vintage part: yes,
category: auto parts > car truck parts accessories > engine cooling components, sku: 21172180553864752,
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1 offer $64.80 USD
  • New. Offer #1 priced at $64.80 + $8.00 shipping estimate = $72.80* total. Thanks storage J New in box fits many GM vehicles please view pics.+$8.00 shipping

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