PARTS UNLIMITED 4835-P283511-65 Piston Kit Big 340CC BORE-.020 2.461

( Manufacturer Part Number: 4835-P283511-65 ), ( Part Type: Piston )

Review PARTS UNLIMITED Piston Kit 340cc Big Inch Oversize To 2.461 fits 1985

Introducing the Unlimited 4835-P283511-65 piston kit, specifically designed for big bore applications up to 340cc for the 1985 model year Honda CRF450R motorcycle. This piston kit is an excellent choice for riders seeking improved performance and durability for their off-road machine.

The piston kit includes six high-quality pistons, each precision-engineered with a forged construction for exceptional strength. The pistons feature a 2.461-inch bore diameter, which is suitable for larger displacement engines. The kit also includes 0.020-inch oversized piston rings, ensuring a reliable seal and optimal engine efficiency.

These pistons are made from a high-strength alloy material, allowing them to withstand the rigors of off-road racing and trail riding. The piston tops have been optimized for maximum combustion efficiency, while the skirts are designed for minimal friction against the cylinder walls.

The Unlimited 4835-P283511-65 piston kit is a direct replacement for the stock pistons and comes with all necessary hardware, including piston pins and clips. The kit also includes new rings and ring grooves, ensuring a perfect fit and seal.

Installing the piston kit is a straightforward process, making it an ideal upgrade for both novice and experienced mechanics. The pistons are designed to work seamlessly with the stock Honda CRF450R crankshaft and connecting rods, making this a plug-and-play upgrade.

In summary, the Unlimited 4835-P283511-65 piston kit is an excellent choice for riders looking to extract more power and reliability from their 1985 Honda CRF450R motorcycle. With its high-quality forged pistons, precision-engineered components, and easy installation process, this kit is a must-have for any serious off-road enthusiast.

Buying an unlimited 4835-P283511-65 piston kit with a big bore 0.20 over 340cc for a 1985 motorcycle can offer several advantages and potential drawbacks, depending on the specific circumstances and priorities of the buyer. Here are some potential pros and cons:

1. Increased Power: The primary advantage of a big bore piston kit is the potential for increased power output. This can lead to improved performance and a more enjoyable riding experience.

2. Customization: A big bore kit allows riders to customize their motorcycle to their specific preferences and riding style.

3. Durability: Big bore kits can also offer increased durability, as the larger pistons can better handle high-performance riding conditions.

1. Cost: A big bore piston kit can be a significant investment, especially for older motorcycles where the value may not be as high.

2. Installation Complexity: Installing a big bore kit can be a complex process that requires specialized tools and knowledge.

3. Potential Engine Damage: Installing a big bore kit without proper knowledge or experience can lead to engine damage, which can be costly to repair.

4. Fuel Efficiency: A larger engine can also lead to decreased fuel efficiency, which can result in additional fuel costs over time.

Ultimately, whether or not to buy a big bore piston kit for a 1985 motorcycle depends on the individual's priorities and circumstances. If the goal is to significantly increase power and customize the motorcycle, then a big bore kit may be a worthwhile investment. However, if the budget is tight, or the motorcycle is not used for high-performance riding, then the costs and complexities may outweigh the benefits. Before making a decision, it's important to carefully consider all the factors and potentially consult with a motorcycle mechanic or expert for advice.

If you decide to pursue a big bore piston kit for your 1985 motorcycle, make sure to work with a reputable supplier and installer to ensure the best possible results. Additionally, consider investing in the necessary tools and knowledge to ensure a proper installation, or work with a qualified mechanic to handle the installation process. Finally, be prepared for the potential costs and complexities involved with the installation and ongoing maintenance of the kit.

Details:

Brand: Parts Unlimited, model Number: 4835-P283511-65. Parts without fitment are to be assumed universal and may require vehicle modification. Compatibility: Years: Make: model: Application: Notes: 1985 - 1985 Polaris Star Twin, 1990 Polaris Sport GT, 1991 1994 Polaris Lite 1986 1990 Polaris Sprint ES, 1987 Polaris Sprint, 1987. This is helpful if you are buying multiple items.

I need to exchange an item. Parts Unlimited Piston Kit 340cc Big Bore-.020in. Oversize to 2.461in.

part #: 4835p28351165 prices

• $29.99-$62.99

specifications enginesnowmobile:

• for years: 1985
• mpn: 4835-p283511-65
• part type: Piston

seller enginesnowmobile:

• # reviews: 74119
• rating: 99.8%
• city: Sparks, NV

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general enginesnowmobile:

• condition: New
• Snowmobile Parts > Engines Components > Snowmobile Engine Components

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offer enginesnowmobile:

• quantity: 6
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: January 4, 2026

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