FULLER K4477 Rebuild Kit

( Brand: Fuller ), ( Manufacturer Part Number: K4477 )

Review FULLER Basic Rebuild Kit

The Fuller K4477 Rebuild Kit is a comprehensive solution for those seeking to restore their Fuller K44 or K45 series hydrostatic transmissions to their original performance. This rebuild kit is meticulously designed to include all the essential components required for a thorough transmission overhaul.

The kit comprises a multitude of parts, including the main pump body, impeller, wear rings, piston and piston rings, stator and rotor, oil cooler, pressure plates, and various seals. Each part is manufactured to exacting standards to ensure a perfect fit and optimal function.

The main pump body is engineered from high-strength cast iron, providing superior durability and resistance to wear and tear. The impeller, manufactured from durable, corrosion-resistant material, is designed to maximize hydraulic efficiency and minimize power loss.

The piston, crafted from heat-treated steel, is precisely machined to ensure a tight seal with the piston rings. The rings, made from premium quality material, provide an effective seal against leakage and wear, ensuring the transmission operates at peak efficiency.

The stator and rotor, essential components of the hydrostatic transmission, are manufactured to precise tolerances to ensure smooth and efficient power transfer. The oil cooler, included in the kit, maintains the transmission's temperature to prevent overheating and extend the component life.

The pressure plates, manufactured from high-strength steel, provide the necessary clamping force to ensure proper component alignment and seal engagement. Various seals, including the transmission seal, oil seal, and shaft seal, are included to prevent leakage and ensure the transmission operates under optimal conditions.

The Fuller K4477 Rebuild Kit is an ideal choice for farmers, construction equipment operators, and other heavy machinery users who require a reliable and efficient hydrostatic transmission. By investing in this rebuild kit, users can save significant costs compared to purchasing a new transmission and extend the life of their existing equipment. With its high-quality components and precise machining, this rebuild kit is a wise investment for anyone seeking to maintain the performance and productivity of their hydrostatic transmission.

The Fuller K44-77 rebuild kit is a popular option for those looking to restore or rebuild their Fuller K44-77 transmission. Here are some pros and cons to help you make an informed decision:

1. High-quality components: The Fuller K44-77 rebuild kit includes new, high-quality parts that can help improve the performance and longevity of the transmission.

2. Comprehensive kit: The kit contains almost all the necessary parts to complete a rebuild, making it a convenient and cost-effective option for many.

3. Detailed instructions: The kit comes with detailed instructions and diagrams to help guide you through the rebuild process.

4. Technical support: Fuller Transmission offers technical support to help answer any questions you may have during the rebuild process.

5. Wide availability: The Fuller K44-77 rebuild kit is widely available from various retailers, making it easy to purchase and have it shipped to you.

1. Cost: The Fuller K44-77 rebuild kit can be expensive, especially when compared to purchasing used parts or having the transmission rebuilt professionally.

2. Requires time and effort: Rebuilding a transmission is a complex and time-consuming process that requires a significant amount of effort and patience.

3. Skill level: Rebuilding a transmission requires a certain level of mechanical skill and experience. If you're not confident in your ability to complete the rebuild, it may be best to hire a professional.

4. Potential for error: There is always a risk of making a mistake during the rebuild process that could result in additional costs or damage to the transmission.

The Fuller K44-77 rebuild kit can be a great option for those who are confident in their mechanical abilities and want to save money by rebuilding the transmission themselves. However, it's important to consider the cost, time commitment, and potential for error before deciding to take on the project. If you're not confident in your abilities or don't have the time to complete the rebuild yourself, it may be best to consider hiring a professional or purchasing a used transmission.

If you're considering a Fuller K44-77 rebuild, make sure to thoroughly research the process and gather all the necessary tools and resources before beginning the project. Additionally, consider seeking out the advice and guidance of experienced mechanics or transmission specialists to help ensure a successful rebuild. Ultimately, the decision to rebuild the transmission yourself or hire a professional should be based on your mechanical skills, available time, and budget.

Details:

Fuller K4477 Basic Rebuild Kit D: Part Number: Manufacturer. Engineered using the latest technology to ensure product lasts longer in service. Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle. Manufactured following strict OE standards to work like the original component.

Made of high-quality components for durability, reliability, and performance. Designed specifically for trucks, trailers, and buses.

part #: k4477 prices

• $318.00-$1162.78

specifications gearreb:

• brand: Fuller
• mpn: K4477

seller gearreb:

• city: Los Angeles, California
• # reviews: 64794
• rating: 99.2%

payments gearreb:

• wallet: Google-pay
• other
• credit card: Diners-club

general gearreb:

• condition: New
• Car Truck Parts Accessories > Transmission Drivetrain > Transmission Rebuild Kits

returns gearreb:

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

offer gearreb:

• sold: 0
• started: February 13, 2026
• best offers: True
• options: Ship-to-home
• quantity: 1
• availability: In Stock

shipping gearreb:

• type: Fixed
• transit: 5-8 Days
• class: Standard
• cost: $0.00
• service: Standard

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