YAMAHA 4KB-18511-00-00 Big Fork AY52

( Manufacturer Part Number: 4KB-18511-00-00 ), ( Type: Shift Forks )

Review YAMAHA Big Oem Shift Fork fits BEAR YFM400 400 2002

The Yamaha YFM400 Big Bear 400 is an all-terrain vehicle (ATV) manufactured by Yamaha in 2002. One of its essential components is the front fork assembly, specifically the Ay52 model, which is part number 4KB-18511-00-00.

This front fork assembly is a critical suspension component that absorbs shocks and maintains tire contact with the ground for optimal vehicle performance and rider comfort. The Ay52 fork is a twin-A-arm, independent double wishbone design, which provides excellent handling and stability.

The fork legs are constructed from high-strength steel, ensuring durability and rigidity. The fork tubes feature an external oil reservoir that houses the hydraulic fluid necessary to facilitate the suspension's action. The fork tubes are also tapered, which reduces weight while maintaining strength.

The Ay52 fork comes with adjustable preload and compression damping, enabling riders to customize the suspension setup to suit their riding style and terrain conditions. The adjustments can be made using the fork's easy-to-reach adjustment knobs, located on the top of each fork leg.

Additionally, the fork comes with sealed bearings, ensuring a long-lasting and low-maintenance suspension system. The fork seals are designed to keep out debris and contaminants, preventing damage to the inner workings of the fork.

The fork length is approximately 10 inches, and the travel is around 7 inches. The fork's overall width is about 47 inches, and the wheel separation is around 36 inches. The fork's weight is approximately 17 pounds.

In summary, the Yamaha 4KB-18511-00-00 2002 Big Bear 400 Ay52 front fork assembly is a high-performance, customizable, and durable suspension component designed to provide excellent handling, stability, and rider comfort for the Yamaha YFM400 ATV.

The Yamaha YFM400 Big Bear 2002 with the Ay52 front fork is a popular choice among ATV riders due to its reliability, power, and versatility. Here are some pros and cons of buying this ATV model with the Ay52 front fork.

1. Power and Performance: The Yamaha YFM400 Big Bear is known for its powerful 398cc, air-cooled, SOHC, 2-valve engine that delivers impressive torque and acceleration. This makes it an ideal choice for riders who enjoy off-road adventures and require a powerful machine to tackle various terrains.

2. Comfortable Riding Experience: The Ay52 front fork offers a comfortable riding experience with its independent double wishbone suspension design. This suspension system provides excellent shock absorption, allowing riders to navigate rough terrains with ease and stability.

3. Durability: Yamaha is known for producing high-quality ATVs that are built to last. The YFM400 Big Bear, with its robust design and reliable engine, is no exception.

4. Versatility: The Yamaha YFM400 Big Bear is a versatile machine that can be used for various purposes, including hunting, farming, and recreational riding. Its powerful engine and capable suspension system make it an excellent choice for riders who require a reliable and versatile ATV.

1. Weight: The Yamaha YFM400 Big Bear is a heavy machine, weighing in at over 600 pounds. This can make it difficult to maneuver in tight spaces or for riders who are not strong enough to lift the ATV onto a trailer or into a truck bed.

2. Fuel Consumption: The YFM400 Big Bear's powerful engine requires a significant amount of fuel to operate. This can be a drawback for riders who plan to use the ATV extensively and need to keep fuel costs in mind.

3. Maintenance: Like any machine, the Yamaha YFM400 Big Bear requires regular maintenance to keep it running smoothly. This includes oil changes, air filter replacements, and tire rotations.

The Yamaha YFM400 Big Bear with the Ay52 front fork offers a powerful and capable riding experience for off-road enthusiasts. Its comfortable suspension system and durable design make it an excellent choice for riders who require a reliable and versatile ATV for various purposes. However, its weight and fuel consumption may be a drawback for some riders. Ultimately, the decision to purchase this ATV model comes down to individual needs, preferences, and budget.

If you are in the market for a powerful and versatile ATV with a comfortable riding experience, the Yamaha YFM400 Big Bear with the Ay52 front fork is an excellent choice. However, if weight and fuel consumption are major concerns, you may want to consider other lighter and more fuel-efficient ATV models. It's always recommended to test ride the ATV before purchasing to ensure it meets your specific needs and riding style.

part # 4kb185110000 prices

• $19.99-$100.00

specifications utvshift:

• for models: Yfm400, 400, Bear
• for makes: Yamaha
• for years: 2002
• manufacturer part number: 4KB-18511-00-00
• type: Shift Forks

seller utvshift:

• # reviews: 41871
• rating: 99.7%

payments utvshift:

• other
• credit card: Mastercard
• wallet: Google-pay

returns utvshift:

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

general utvshift:

• ATV, Side-by-Side UTV Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain Parts
• condition: Used

shipping utvshift:

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

offer utvshift:

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

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