1. Engine Cooling Components Deals
  2. sku: 21194586413774853
  3. FOUR SEASONS 77BY502

FOUR SEASONS 77BY502 Engine Coolant Water Outlet K20

fits model: Suburban. make: Chevrolet. year: 1979–1982.

77by502 Four Seasons Engine Coolant Water Outlet Fits 1979-1982 Chevrolet K20 Suburban

( Brand: Four Seasons ), ( Manufacturer Part Number: 77BY502 ), ( Part Type: Engine Outlet ), ( Manufacturer Warranty: 1 Year ), ( Bundle: No ), ( Cs-sku: 328 )

Review FOUR SEASONS Engine Coolant Water Outlet Chevrolet K20 fits SUBURBAN 1979–1982

The **Seasons 77by502 Engine Coolant Water Outlet** is a high-quality, precision-engineered replacement part designed specifically for the **1979 1982 Chevrolet K20 Suburban** and its related GM V8 applications, including the **305ci and 350ci engines** from the same era. Crafted from durable **cast aluminum**, this water outlet is built to withstand the demanding thermal stresses of modern driving conditions while maintaining seamless compatibility with the original equipment design. The part features a **threaded connection** that ensures a secure, leak-free fit, allowing for optimal coolant flow and efficient engine temperature regulation. Its robust construction prevents warping or deformation under high heat, making it a reliable long-term solution for maintaining cooling system integrity. Whether you're restoring a classic K20 Suburban or upgrading an older vehicle with aftermarket modifications, this water outlet is engineered to restore factory performance without compromising on durability. The **OEM-style design** guarantees an exact fit, reducing the risk of coolant leaks or overheating issues that can arise from inferior aftermarket alternatives. Ideal for both professional mechanics and DIY enthusiasts, this part is a straightforward, no-fuss upgrade that helps preserve the longevity of your engine while ensuring smooth operation under varying driving conditions.

### Pros and Cons of Buying a Season 77-by-502 Engine Coolant Water Outlet for a 1979-1982 Chevrolet K20 Suburban

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#### **Pros:**

1. **Compatibility and Fit:** This part is specifically designed for your vehicle s model and year range (1979-1982 Chevrolet K20 Suburban). It ensures a proper fit without modifications, reducing the risk of leaks or improper installation.

2. **Reliability:** OEM (Original Equipment Manufacturer) or high-quality aftermarket parts like this one are built to meet the same standards as factory components. This can improve the longevity and performance of your engine s cooling system.

3. **Prevents Cooling System Failures:** The water outlet is a critical component in the cooling system. A faulty or worn-out part can lead to overheating, which can cause severe engine damage. Replacing it proactively can avoid costly repairs down the line.

4. **Ease of Installation:** Since this is a straightforward replacement part, it can often be installed relatively easily, especially if you have basic mechanical skills or access to a mechanic. It typically requires draining the coolant, removing the old part, and installing the new one.

5. **Cost-Effective:** Replacing a single part like this is far cheaper than dealing with engine damage caused by a failing cooling system. It s a small investment that can save you from much larger expenses.

6. **Improved Cooling Efficiency:** A properly functioning water outlet ensures that coolant flows efficiently through the engine, maintaining optimal operating temperatures and preventing thermal stress on the engine components.

7. **Accessibility:** This part is widely available from various suppliers, including online marketplaces, auto parts stores, and specialty shops. You can easily find it without much hassle.

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#### **Cons:**

1. **Potential for Counterfeit Parts:** If you purchase from an untrusted seller, there s a risk of receiving a counterfeit or low-quality part. This could lead to premature failure or poor performance. Always buy from reputable sources.

2. **Labor Costs:** If you re not comfortable performing the replacement yourself, you ll need to pay a mechanic to do it. Labor costs can add up, especially if the part is not easily accessible.

3. **Coolant Drain and Refill:** Replacing this part requires draining the coolant from the system, which means you ll need to dispose of it properly (many auto shops offer coolant recycling services). You ll also need to refill the system with fresh coolant afterward.

4. **Time and Effort:** Even if you re doing the job yourself, it may take a few hours to complete, depending on your experience and the tools you have available. This could be inconvenient if you re on a tight schedule.

5. **Compatibility with Other Systems:** While this part is designed for your vehicle, ensure that the rest of your cooling system (hoses, thermostat, radiator, etc.) is in good condition. If other components are failing, replacing just this part may not fully resolve cooling issues.

6. **Potential for Overheating if Not Properly Installed:** If the new part isn t installed correctly (e.g., not tightened properly or sealed securely), it could leak coolant or fail to function as intended, leading to overheating.

7. **Environmental Considerations:** Coolant is hazardous and must be disposed of responsibly. If you re not equipped to handle this safely, you ll need to take it to a professional for disposal, adding an extra step to the process.

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### **Conclusion:**

Replacing the engine coolant water outlet on your 1979-1982 Chevrolet K20 Suburban is a practical and often necessary maintenance task. The benefits of ensuring your cooling system operates efficiently far outweigh the minor drawbacks, such as the effort required for installation or the need for proper coolant disposal. This part is critical to preventing engine damage, and addressing it proactively can save you from much more expensive repairs in the future.

If you re experiencing overheating issues, leaks, or suspect that this part is failing, replacing it is a wise investment in the long-term health of your vehicle. Just ensure you purchase a high-quality part from a trusted source and follow proper installation procedures.

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### **Recommendation:**

1. **Purchase from a Reputable Source:** Buy the part from a well-known auto parts retailer (e.g., RockAuto, AutoZone, O Reilly Auto Parts) or a trusted online seller to avoid counterfeit or low-quality parts.

2. **Prepare for the Job:** Gather the necessary tools (socket wrench, drain pan, new coolant, possibly a torque wrench), and ensure you have a safe workspace.

3. **Dispose of Coolant Properly:** If you re not recycling the coolant yourself, take it to a local auto shop that offers this service.

4. **Consider Professional Help if Needed:** If you re unsure about the installation process or lack the tools, don t hesitate to consult a mechanic. A professional can ensure the part is installed correctly and catch any other potential issues with your cooling system.

5. **Monitor Your Vehicle Post-Installation:** After replacing the part, keep an eye on your engine s temperature gauge and check for any leaks. If issues persist, have the system inspected further.

6. **Maintain Your Cooling System:** Regularly check your coolant level, top up as needed, and flush the system every few years to keep it running smoothly.

In summary, this replacement is a sound decision for maintaining your vehicle s reliability and preventing costly engine damage. With careful preparation and attention to detail, it s a manageable task that will pay off in the long run.

Details:

Part Type: Engine Coolant Water Outlet. Water Outlet. Warranty Coverage: 1 Year. 1980 Chevrolet K20 Suburban Engine: 4.8L L6; Outlet;.

Notes: Outlet. Item Specifics: Engine Coolant Components, Gasket or Seal Included: Yes, Inlet DOA. IN: 1.213 in, Material: Aluminum, Mont Flange width 0.425 Overall height 2.400 Style: w/o Thermostat, Thermostat Included?: Not Included, Type: Outlet. Fitment Notes: Engine: 4.8L L6;.

part #: 77by502 price

  • $26.59

specifications ocoosys:

  • for models: Suburban
  • for makes: Chevrolet
  • for years: 1979-1982
  • brand: Four Seasons
  • mpn: 77by502
  • part type: Engine Outlet
  • manufacturer warranty: 1 Year
  • bundle: No
  • cs-sku: 328

seller ocoosys:

  • rating: 100.0%
  • # reviews: 416
  • city: Bronx, New York

general ocoosys:

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

returns ocoosys:

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

shipping ocoosys:

  • type: Fixed
  • service: Standard
  • class: Standard
  • cost: $0.00
  • transit: 5-9 Days

offer ocoosys:

  • sold: 0
  • started: April 23, 2026
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1

payments ocoosys:

  • credit card: Diners-club
  • other
  • wallet: Apple-pay
for models: suburban, for makes: chevrolet, for years: 1979-1982, part type: engine outlet, manufacturer warranty: 1 year, bundle: no, cs-sku: 328,
category: auto parts > car truck parts accessories > engine cooling components, sku: 21194586413774853,
Four Seasons 77BY502 Is Similar To:
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1 offer $26.59 USD
  • New. Offer #1 priced at $26.59 + $0.00 shipping estimate = $26.59* total. 1982 Chevrolet K20 Suburban Engine: 4.8L L6; Outlet;. 1979 Chevrolet K20 Suburban Engine: 4.8L L6; Outlet;.FREE SHIPPING

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