Piston Kits
Pistons manufactured by us is always made up of quality materials. Each part of the piston such as compression ring, wiper ring, oil ring, piston pin, etc. are manufactured with utmost precision. Friction-side coatings to maintain radial tension in the rings. Compression rings manufactured to precision specifications from high grade iron casting. Manufactured under strict supervision to maintain quality. Each component is tested so that there is no margin of error. Piston available in silver shine finish, black finish, tin finish.
Reliability and long-life
They know piston kits actuated valves for their exceptional reliability and long-life. The unique design of the valves ensures that they are able to withstand high-pressure applications such as steam or water systems and will last for many years. This makes them ideal for industrial settings where maintenance costs must kee low, as they require very little upkeep compared to other types of valves. Piston kits actuated valves are designed to remain precise and accurate even after years of use.
Superior performance in pressure, temperature, and flow rates
Seat valve are known for their superior performance in pressure, temperature, and flow rate regulation. The unique design of the valves allows them to precisely regulate pressure, temperature, and flow rate with minimal effort. This makes them ideal for industrial settings where precision is essential. Piston kits actuated valves can be used in a wide range of water and steam systems due to their performance.
Our factory
BIGUO (KS) Auto Parts Industries was established in 1990. It has become a reliable Strong Manufacturer in International market in the Field of Piston Pin and Cylinder Liner & Sleeve under the Brand name "BIGUO". BIGUO Auto Parts Industries is spread on 15,000 SQ. fts. land, well equipped with foundry and machining machineries and equipments.
Our product
We engaged in manufacturing PISTON PIN and Cylinder Liners & Sleeves for all types of Engines Applicable in Automobile, Tractor, Compressor,outboard, Generator, forklift,Earth Mover and Diesel Engine.
Quality control
We, at Biguo Auto Parts Industries strive to give good quality products at competitive prices in the identified global markets and provide customer satisfaction by consistently complying with specified requirements, continuous process improvement, involvement of personnel at all levels and upgradation of technology.
Production market
Since last 25 years BIGUO Auto Parts Ind. is manufacturing and exporting Piston Pin and Cylinder Liner & Sleeve of all type of Engines & Vehicles and being accepted in Domestic as well as Europe, America, Assia, Middle East & African market due to achieving International standard quality and implementing professional marketing and management system.
Do You Know the Truth About Piston Kits
High flow piston and shim tuning kit to give you more grip, more control and ultimately, faster segments! A hard anodised, cnc machined, aerospace grade aluminium piston. Manufactured to high tolerances, every piston performs the same and fits perfect, every time.
We've worked tirelessly to find a flow rate that gives a wide range of tuning, without restricting oil flow, for excellent repetitive bump recovery and no spiking on the harshest of hits. It's not just about more flow, it's also about turbulence - we've designed the shape of the ports to give a turbulent flow, for a faster response. The result - more grip, better support and ultimately, faster segments.
Piston kits are available to fit most front fork cartridge damping systems and have been designed for road and track use to give enhanced damping control over the original equipment, giving comfort and confidence to the rider. All piston kits are supplied as a complete assembly for ease of fitment with new control valves and needles to give a more precise range of adjustment.
Piston kits are only available through authorised dealers who have been trained to install these products, there are specialist tools and techniques required to guarantee performance and safety of this product. From the standard to over bore, high compression to turbo piston designs, has won more small bore displacement races and championships than any other company around the world.
What Characteristics Should Piston Kits Has
We pride ourselves on delivering more than just parts; we provide a comprehensive solution to elevate your experience. Our piston kits contain everything you need to amplify your vehicle’s performance. Here’s what you’ll find in each carefully assembled piston kit:
Precision-crafted piston
At the heart of each kit is a carefully crafted piston tailored to fit flawlessly into your specific machine.
High-quality piston rings
Designed to create a tight seal within the cylinder, piston rings play a pivotal role in ensuring efficient power transfer and minimizing friction, leading to smoother engine operation and longevity.
Robust wrist pins
The wrist pin maintains the piston’s alignment and facilitates seamless motion. Our wrist pins are engineered for strength and precision, ensuring your piston is highly reliable.
Secure circlips
A small yet vital component, circlips are designed for a secure fit and easy installation. They ensure that the piston and wrist pin stays in place, offering you peace of mind with every ride.
Detailed installation guide
Each piston kit contains a comprehensive guide to aid installation. This ensures that whether you’re a seasoned mechanic or a DIY enthusiast, you’ll have a smooth, hassle-free experience upgrading or repairing your vehicle.
It stands out among piston brands, offering an all-inclusive solution for riders. Whether you’re gearing up for a competitive race or embarking on a recreational adventure, our piston kits are the key to unlocking your machine’s full potential.

Sizing of Piston Kits
A piston ring’s diameter is directly proportional to the cylinder bore. If an overbore of the cylinder has occurred, then the proper piston ring size (and piston) must be ordered to properly fit. For example, a standard 4.00-inch bore that has been machined .030-inch to remove wear or wall damage will now require both 4.030-inch pistons and rings. A file to fit ring is +.005 over the bore size to allow the fitting of a tighter end gap in performance engines.
Using a piston kits is the proper way to ensure the ring gap is adjusted. End gap is usually specified by the ring manufacturer, but most fall back on the general rule of thumb of .0045-inch of ring gap per inch of bore diameter (for example, a 4.00-inch bore naturally aspirated engine would take a .018-inch top ring gap). Second rings are usually gapped at .006-inch per inch of bore. Again, for a naturally aspirated engine. The goal here is to have enough gap that as the rings are exposed to the combustion chamber’s heat that the ring end gap provides enough room for ring expansion without the ring ends butting up against each other, which will cause ring scuffing and even breakage. A piston ring end gap filing tool is the proper way to file both ends of the piston ring equally.
How to Choose Piston Kits and Gap Them Correctly
What makes piston kits selection and ring endgap so important to engine life and power? What's more, what makes that first engine firing so critical to proper break-in and longevity? Those first few minutes an engine runs sets the stage for power, efficiency, and engine life. In an ideal world, all engine builds would include a dyno pull for proper engine break-in. However, if you're like most of us you can scarcely afford the engine build let alone the added expense of a dyno session. On the dyno, an engine builder gets to load the engine and lean on the throttle hard to seat piston kitss and bearings, which is more challenging to do on the open road.
However, engine break-in is getting ahead of our story. Piston and ring selection is where it begins. Before we get into piston kits types, we need to talk about what piston kitss do. Though the job of piston kitss is obvious—cylinder sealing and oil control—another equally important function is carrying heat from the piston to the cylinder wall via direct contact. Oil also carries destructive heat away. As piston kitss have become thinner for friction reduction, efficiency, and more power, heat transfer from piston to cylinder wall has become more critical and decidedly harder on pistons.
If you're planning high-performance driving, piston kits selection is as critical as piston selection. Selection depends upon how your engine will be used. There are three basic piston types: Cast, hypereutectic, and forged. Cast pistons tend to be old-school and were original equipment in most cars and trucks back in the day. Hypereutectic pistons are high silicon cast—chosen for their hardness and cost. They don't cost much more than cast and they're more durable. Forged pistons are very rugged and can withstand a lot of abuse. They're the only choice for high-performance applications.
Ring width is the first consideration in ring selection, which depends on how you intend to use your engine. If you're going racing or conducting a fuel economy challenge, you want thinner piston kitss, which create less friction and consume less energy. More conventional piston kits dimensions (wider) are appropriate for weekend cruisers and daily commuters because they wear better and carry greater loads. You're going to get more life out of them.
Cleaning piston kits without removing them from the engine can be a delicate process, but it can be done effectively with the right methods and materials. Ensure the engine is cool to avoid burns. Remove any components that obstruct access to the piston kits, such as the intake manifold or valve covers, if necessary.
1.Apply degreaser
Spray an engine degreaser or solvent generously onto the piston tops. Be careful to avoid excess runoff into the combustion chamber.
2.Let it soak
Allow the degreaser to sit for 10-15 minutes to loosen any carbon deposits or grime.
3.Scrubbing
Use a soft-bristle brush to gently scrub the piston tops. Be cautious not to scratch the surface. Focus on areas with heavy deposits.
4.Wipe down
Use rags or paper towels to wipe away the loosened dirt and degreaser. You May need to repeat the application and scrubbing for heavily soiled piston kits.
5.Compressed air (optional)
If you have access to compressed air, use it to blow out any remaining debris or cleaning solution from the piston area.
6.Final cleaning
For a deeper clean, you can use a mixture of vinegar and water or a specialized piston cleaner. Apply it, let it sit, scrub, and wipe down again.
7.Inspect
After cleaning, inspect the piston kits for any damage or excessive wear that May require further attention.
Avoid using harsh abrasives or steel brushes, as they can damage the piston surface. Ensure that excessive cleaning solutions do not enter the combustion chamber. Regular maintenance can help prevent heavy buildup in the future. By following these steps, you can effectively clean piston kits without needing to remove them from the engine.
Our factory
BIGUO (KS) Auto Parts Industries was established in 1990. It has become a reliable Strong Manufacturer in International market in the Field of Piston Pin and Cylinder Liner & Sleeve under the Brand name "BIGUO". Now we're the OEM suppliers for engine factories in Asia and Middle East. And we've cooperated with three famous international auto parts Groups. Since last 25 years BIGUO Auto Parts Ind. is manufacturing and exporting Piston Pin and Cylinder Liner & Sleeve of all type of Engines & Vehicles and being accepted in Domestic as well as Europe, America, Assia, Middle East & African market due to achieving International standard quality and implementing professional marketing and management system. By strict monitoring of orders and developing stock plans in material, we maintain and deliver schedules in accordance to the requirements.

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