FOUR SEASONS 39LK804 Engine Coolant Water Outlet J-100

( Brand: Four Seasons ), ( Manufacturer Part Number: 39LK804 ), ( Part Type: Engine Outlet ), ( Manufacturer Warranty: 1 Year ), ( Bundle: No ), ( Cs-sku: 328 )

Review FOUR SEASONS Engine Coolant Water Outlet Jeep fits 1971–1973

The **Seasons 39LK804 Engine Coolant Water Outlet** is a precision-engineered replacement part designed specifically for the **1971 1973 Jeep J-100** (and compatible Willys models), ensuring optimal performance and longevity for your vehicle s cooling system. Crafted from high-quality **brass or aluminum**, this water outlet is built to withstand the demanding conditions of heavy-duty use, providing a secure and reliable seal that prevents coolant leaks while maintaining efficient heat transfer. The part features a **threaded connection** that matches the original equipment manufacturer (OEM) specifications, ensuring a perfect fit with the engine block s coolant passages, reducing the risk of gasket failure or misalignment. Ideal for both restoration projects and routine maintenance, this outlet is engineered to handle the thermal stresses of high-performance applications, whether you re hauling heavy loads, towing trailers, or simply driving under extreme temperatures. Its durable construction minimizes the risk of corrosion, even in environments where road salt or moisture may be present, making it a long-lasting solution for keeping your Jeep s cooling system operating at peak efficiency. Whether you re upgrading an older vehicle or replacing a worn-out component, the **Seasons 39LK804** is a trusted choice for maintaining the integrity of your engine s cooling system.

### Pros and Cons of buying a **Seasons 39LK804 Engine Coolant Water Outlet (1971-1973 Jeep J-100)**

1. **Direct Fitment** This part is specifically designed for 1971-1973 Jeep J-100 models, ensuring compatibility without modifications. This reduces the risk of installation errors and ensures proper function.

2. **Quality Materials** The **Seasons** brand is known for producing durable aftermarket parts, often made from materials like brass or high-grade steel, which can resist corrosion better than OEM parts in some cases.

3. **Prevents Coolant Leaks** The water outlet is a critical component in the cooling system. A failing or worn-out part can lead to coolant leaks, overheating, and potential engine damage. Replacing it proactively can prevent costly repairs.

4. **Ease of Installation** Since it s a direct replacement, installation is typically straightforward, requiring only basic tools. Many users report being able to complete the job in under an hour with minimal mechanical experience.

5. **Cost-Effective Alternative** Compared to purchasing an entire cooling system or engine rebuild due to coolant-related failures, this part is a budget-friendly solution.

6. **Extended Lifespan for the Cooling System** A properly functioning water outlet ensures even coolant flow, reducing strain on the water pump, radiator, and hoses, which can extend the life of the entire cooling system.

7. **Warranty Coverage** Many aftermarket parts, including Seasons, come with warranties (e.g., 1-2 years), providing peace of mind against defects.

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1. **Potential Quality Variability** While Seasons is a reputable brand, some users report inconsistencies in quality, such as slight manufacturing defects (e.g., misaligned threads, minor corrosion in storage). Always inspect the part upon arrival.

2. **Compatibility Concerns** While the part is advertised for 1971-1973 J-100s, slight variations in engine configurations (e.g., fuel injection vs. carbureted models) could require additional sealing or gaskets. Double-check your specific engine build.

3. **No OEM Matching** Unlike original equipment parts, aftermarket components may not have the exact same finish or fit as the original. Some users prefer the look of OEM parts for restoration projects.

4. **Installation Challenges for Inexperienced DIYers** While the part itself is easy to install, if the surrounding hoses or gaskets are worn, additional repairs may be needed. Improper tightening can lead to leaks.

5. **Limited Availability of Spare Parts** If the part fails again shortly after installation, finding an exact replacement may require sourcing from specialty suppliers, which could be inconvenient.

6. **Price Premium Over Cheaper Alternatives** While not excessively expensive, some budget-conscious buyers might opt for generic or no-name brands, which could be cheaper but riskier in terms of durability.

7. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (e.g., third-party marketplaces without reviews) increases the risk of receiving a fake or low-quality knockoff. Always buy from authorized dealers or well-reviewed retailers.

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The **Seasons 39LK804 Engine Coolant Water Outlet** is a **reliable and practical choice** for restoring or maintaining a 1971-1973 Jeep J-100 s cooling system. Its direct fitment, durability, and ease of installation make it a strong option for both DIY enthusiasts and mechanics. However, potential buyers should be mindful of quality variability, compatibility nuances, and the importance of sourcing from reputable sellers to avoid counterfeit products.

For most users, the **benefits outweigh the drawbacks**, especially if the goal is functionality and longevity. If budget is a major concern, comparing prices with other brands (e.g., **Moroso, AC Delco, or OE replacements**) may yield similar results at a lower cost.

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- You prioritize **durability and ease of installation**.

- You re restoring a Jeep and want a **direct-fit, high-quality replacement**.

- You ve verified the part matches your **specific engine configuration** (e.g., carbureted vs. fuel-injected).

- You re purchasing from an **authorized dealer or a trusted retailer** (e.g., RockAuto, Summit Racing, or a local Jeep specialty shop).

- You re on a **tight budget** and can find a comparable part (e.g., **Moroso 10-11516**) at a lower price.

- You re uncomfortable with aftermarket parts and prefer **OEM or higher-end brands** (e.g., **AC Delco**).

- You suspect the part may have been **counterfeit** (check for packaging authenticity, seller ratings, and return policies).

**Final Verdict:** For most 1971-1973 Jeep J-100 owners, the **Seasons 39LK804 is a solid, no-frills solution** that delivers reliable performance. With proper installation and sourcing, it s a worthwhile investment to prevent coolant-related failures.

Details:

Water Outlet. 1971 Jeep J-100 Engine: 5.9L V8; Outlet;. Notes: Outlet. Item Specifics: Engine Coolant Components, Gasket or Seal Included: Yes, Inlet DOA.

Manufacturer: Four Seasons. Part Type: Engine Coolant Water Outlet. IN: 1.184 in, Material: Aluminum, Mont Flange width 0.532 Overall height 3.340 Style: w/o Thermostat, Symmetrical Base?: No, Thermostat Included?: Not Included, Type: Outlet. 1973 Jeep J-100 Engine: 5.9L V8; Outlet;.

Warranty Coverage: 1 Year.

part #: 39lk804 prices

• $29.43-$123.02

specifications ocoosys:

• for makes: Jeep
• for years: 1971-1973
• brand: Four Seasons
• mpn: 39lk804
• part type: Engine Outlet
• manufacturer warranty: 1 Year
• bundle: No
• cs-sku: 328

general ocoosys:

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

seller ocoosys:

• # reviews: 423
• rating: 100.0%
• city: Bronx, New York

payments ocoosys:

• wallet: Paypal
• other
• credit card: Mastercard

returns ocoosys:

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

offer ocoosys:

• started: April 24, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 1
• sold: 0

shipping ocoosys:

• cost: $0.00
• type: Fixed
• class: Standard
• service: Standard
• transit: 4-10 Days

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