UAC KT-4677 Air Conditioner Compressor Kit 711307347223 A/c

( Brand: Uac ), ( Manufacturer Part Number: KT-4677 ), ( Part Type: Compressor ), ( UPC: 711307347223 ), ( Gtin: 00711307347223 )

Review UAC Universal Air Conditioner Kt 4677 A/c Compressor And Component Kit

The **UAC KT-4677 Air Conditioner Compressor Kit** is a high-performance, precision-engineered replacement solution designed to restore optimal functionality to refrigeration and air conditioning systems that rely on the **KT-4677 compressor model**. This kit is meticulously crafted to meet the exacting standards of automotive, commercial, and industrial HVAC applications, ensuring seamless integration with existing systems while delivering superior cooling efficiency. Built with **robust materials and advanced manufacturing techniques**, the KT-4677 compressor kit features a **hermetically sealed, oil-filled design** that guarantees reliable operation under demanding conditions, including high-pressure environments and extended runtime. The compressor incorporates a **high-efficiency scroll or rotary mechanism**, depending on the specific variant, which minimizes wear and tear while maximizing energy transfer, resulting in quieter operation and prolonged lifespan compared to conventional piston-style compressors. Engineered with **precision bearings and a reinforced shaft**, this kit is engineered to withstand thermal stress and mechanical strain, reducing the risk of premature failure and ensuring consistent performance even in harsh operating climates. Additionally, the KT-4677 compressor kit is compatible with a **wide range of refrigerants**, including **R-134a, R-12, R-410A, and R-404A**, making it a versatile choice for retrofitting older systems or upgrading to modern refrigeration standards. Whether used in **automotive A/C systems, commercial refrigeration units, or industrial chillers**, this kit provides a dependable solution for maintaining peak cooling performance with minimal maintenance requirements. For professionals and DIY enthusiasts alike, the KT-4677 compressor kit represents a **cost-effective, high-quality alternative** to OEM parts, offering the durability and efficiency needed to keep cooling systems running smoothly for years to come.

The UAC KT-4677 is a popular air conditioning compressor kit designed for use in automotive air conditioning systems, particularly for vehicles with R-134a refrigerant. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

### Pros of the UAC KT-4677 Air Conditioner Compressor Kit

1. **Compatibility and Reliability**: The KT-4677 is widely recognized for its compatibility with a broad range of vehicles, especially those manufactured between the late 1990s and early 2010s. It is designed to work with R-134a refrigerant, which is commonly used in older vehicles. Many users and mechanics report that this compressor kit is a reliable replacement for failing or worn-out factory compressors, especially in vehicles with high mileage.

2. **Durability and Build Quality**: UAC (Universal Air Conditioning) is known for producing high-quality aftermarket parts. The KT-4677 compressor kit is built with durable materials, including a robust clutch assembly and a sturdy housing. The use of high-quality seals and bearings helps extend the lifespan of the compressor, reducing the likelihood of premature failure.

3. **Easy Installation**: The kit is designed with user-friendliness in mind. It typically comes with clear instructions, and the components are often pre-assembled or easy to install, even for DIY enthusiasts. The kit usually includes necessary gaskets, seals, and mounting hardware, simplifying the replacement process.

4. **Cost-Effective Solution**: Compared to OEM (Original Equipment Manufacturer) compressors, the KT-4677 is often more affordable. This makes it an attractive option for budget-conscious consumers who want to restore their vehicle s air conditioning without spending a fortune on a brand-new factory part.

5. **Performance**: The KT-4677 is engineered to deliver strong cooling performance, often matching or exceeding the cooling capacity of the original equipment. It is particularly effective in vehicles where the factory compressor has degraded over time, leading to weak or inconsistent cooling.

6. **Warranty and Support**: UAC offers warranties on its products, which can provide peace of mind to buyers. Additionally, UAC has a reputation for good customer support, offering assistance with installation questions or issues that may arise post-purchase.

7. **Versatility**: The KT-4677 is compatible with many different vehicle models, making it a versatile choice for mechanics and car owners who work on multiple makes and models. This versatility reduces the need to stock multiple compressor kits for different vehicles.

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### Cons of the UAC KT-4677 Air Conditioner Compressor Kit

1. **Limited Compatibility with Modern Vehicles**: While the KT-4677 works well with older vehicles using R-134a, it may not be compatible with newer vehicles that have transitioned to R-1234yf refrigerant. These newer systems require compressors specifically designed for R-1234yf, which the KT-4677 is not. Buyers must verify their vehicle s refrigerant type before purchasing.

2. **Potential for Leaks**: Like any aftermarket part, the KT-4677 can develop leaks over time, particularly if the installation is not done correctly or if the seals degrade due to age or improper handling. Ensuring a proper installation and using high-quality refrigerant oil (PAG oil for R-134a) is critical to minimizing this risk.

3. **Mixed Reviews on Longevity**: While many users report long-term reliability, some have experienced issues with the KT-4677 failing prematurely, especially in vehicles with aggressive driving habits or extreme climates. Factors like poor maintenance, contaminated refrigerant, or incorrect installation can contribute to reduced lifespan.

4. **Clutch Engagement Issues**: A few users have reported problems with the clutch not engaging properly or wearing out quickly. This can result in the compressor not activating when the A/C is turned on, leading to no cooling. Regular maintenance and inspection of the clutch can help mitigate this issue.

5. **Requires Professional Installation for Optimal Results**: While the kit is designed for easy installation, achieving optimal performance and longevity often requires professional installation. Improper installation such as incorrect refrigerant charging, improper belt tension, or failing to purge air from the system can lead to poor cooling performance or damage to the compressor.

6. **Compatibility with Non-Standard Systems**: Vehicles with non-standard A/C systems, such as those with auxiliary compressors or unique mounting configurations, may not be fully compatible with the KT-4677. Buyers must ensure their vehicle s system is compatible with the kit s specifications.

7. **Limited Availability of Replacement Parts**: While UAC is a reputable brand, some users have noted that replacement parts for the KT-4677 may not be as readily available as those for OEM compressors. This could pose a challenge if the compressor needs to be serviced or repaired down the line.

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### Conclusion

The UAC KT-4677 air conditioner compressor kit is a strong, cost-effective option for restoring or replacing a failing compressor in older vehicles using R-134a refrigerant. Its compatibility with a wide range of vehicles, durability, and ease of installation make it a popular choice among mechanics and car owners. However, its limitations such as incompatibility with newer R-1234yf systems, potential for leaks or clutch issues, and the need for careful installation must be carefully considered.

For vehicles with R-134a systems and proper maintenance, the KT-4677 can provide reliable cooling for many years. However, buyers should ensure they are purchasing the correct kit for their vehicle s specific requirements and consider having the installation performed by a professional to maximize performance and longevity.

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### Recommendation

If you are working on an older vehicle (pre-2010s) that uses R-134a refrigerant and your current compressor is failing, the UAC KT-4677 is a highly recommended choice. It offers a good balance of affordability, reliability, and performance. To get the best results:

1. **Verify Compatibility**: Double-check that your vehicle s A/C system is compatible with the KT-4677 and uses R-134a refrigerant. Avoid purchasing it for newer vehicles with R-1234yf systems.

2. **Professional Installation**: If you are not experienced with A/C system repairs, consider having the compressor installed by a professional mechanic. Proper installation is key to preventing leaks, ensuring correct refrigerant charging, and avoiding clutch engagement issues.

3. **Use High-Quality Refrigerant Oil**: Always use the correct type of refrigerant oil (PAG oil for R-134a) to lubricate the compressor and extend its lifespan.

4. **Regular Maintenance**: Schedule regular A/C system checks to inspect the compressor, seals, and refrigerant levels. Address any issues promptly to avoid costly repairs.

5. **Consider Alternatives for Newer Vehicles**: If your vehicle is newer and uses R-1234yf, research compressors specifically designed for this refrigerant type, as the KT-4677 will not be suitable.

In summary, the UAC KT-4677 is a solid aftermarket compressor kit for R-134a systems in older vehicles, provided it is installed and maintained correctly. For optimal results, prioritize compatibility, professional installation, and ongoing maintenance.

Details:

Is Discontinued By Manufacturer: No. Brand New, OE replacement: UAC branded Compressor Kit. Exterior: Machined. Universal Air Conditioner KT 4677 A/C Compressor and Component Kit: Manufacturer: UAC.

Product Dimensions: 17 x 14 12 inches. Model: KT 4677. Item model number: KT 4677.

part #: kt4677 prices

• $301.29-$322.95

specifications motohva:

• brand: Uac
• mpn: Kt-4677
• part type: Compressor
• upc: 711307347223
• gtin: 00711307347223

shipping motohva:

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

payments motohva:

• credit card: Discover
• other
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offer motohva:

• availability: In Stock
• started: March 28, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home

general motohva:

• HVAC Refrigeration > HVAC Refrigeration Components > Compressors
• condition: New

returns motohva:

• policy: No Returns

seller motohva:

• # reviews: 624
• rating: 100.0%
• city: US

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