Company Profile
Quanzhou Xinlida Machinery Manufactory Co., Ltd. was founded in 1995, located in the Southeast of China, cultural city called Quanzhou, where the " Silk Road" started. Quanzhou is known as a "garden city", and enjoys a beautiful environment and convenient transportation.
In 2008 passed the ISO9001 international quality management system certification, in 2014 passed ISO/TS16949 quality system. Our market covers countries from Southeast Asia to Middle East Area, Europe, America etc.
Why Choose Us
Our Factory
Xinlida is a professional manufacturer and exporter of Spare Parts for European and Japanese Auto Chassis Parts, such as Clutch Booster, Brake Air Master Booster, Repair Kit, King Pin Kit, Trunnion Seat and so on. The soul of Xinlida is " professionalism, innovation, quality, and dedication", running with modern enterprise management.
Our Certificate
SGS ISO9001, TUV ISO/TS16949
Production Equipment
Eight PCS CNC machines, One Automotive casting Machine, and One Testing Room
Our Product
Clutch Booster, Air Master Booster, Foot Valve, Relay Valve, Power Shift Booster, Servo Pump, Slave Pump, Master Pump, Booster Repair Kit, King Pin Kit, Trunnion Shaft, Trunnion Seat, Propeller Shaft, Trunnion Bush, Trunnion Washer, Tie Rod End, Drag Link End and so on.
We're in specialize in produce booster for truck,trailer. casting aluminium part's surface is very beautiful, high quality rubber parts,each one booster has testing for workable, air syste and fuel system by advanced testing machines.
Items: clutch booster piston
Size:19mm,19.80mm,22.20mm,3/4",7/8"
Used for truck,trailer,
Xinlida is a professional manufacturer and exporter of Spare Parts for European and Japanese Auto Chassis Parts, such as Clutch Booster, Brake Air Master Booster, Repair Kit, King Pin Kit, Trunnion Seat and so on.
Items:foot brake valve repair kit
Size:9324-0159
Used for truck,trailer.
We're in specialize in produce booster for truck,trailer. casting aluminium part's surface is very beautiful, high quality rubber parts,each one booster has testing for workable, air syste and fuel system by advanced testing machines.
Items: clutch booster repair kit
Size:70mm,90mm,105mm
Used for truck,trailer.
What is Hydraulic Repair Kit?
Hydraulic Repair Kit is designed for heavy-duty truck hydraulic systems, providing all essential components for efficient maintenance and repair. Made from high-quality, durable materials, the kit ensures leak-free performance, extended system lifespan, and reliable hydraulic operation. It includes seals, O-rings, gaskets, and other precision components, allowing for quick and effective restoration of hydraulic functions. Ideal for fleet operators and repair professionals, our kit helps minimize downtime and maintain peak truck performance.
Benefits of a Hydraulic Repair Kit for Auto Trucks

Cost Savings –
Extends the life of hydraulic components by allowing timely repairs, reducing the need for expensive replacements.
Minimized Downtime –
Helps quickly restore hydraulic function, keeping trucks operational and avoiding long service delays.
Leak Prevention –
High-quality seals, O-rings, and gaskets prevent fluid leaks, ensuring efficient hydraulic performance.
Enhanced Performance –
Restores pressure control and fluid flow efficiency, optimizing truck operation.
Versatility –
Suitable for various truck hydraulic systems, including brakes, steering, and lifting mechanisms.
Easy Maintenance –
Provides all necessary components for quick and hassle-free repairs, making it convenient for mechanics and fleet operators.

When to Use a Hydraulic Repair Kit
✅Leakage Issues – If you notice hydraulic fluid leaks around seals, O-rings, or hoses, it's time to replace worn-out components.
✅Loss of Pressure – When the hydraulic system struggles to maintain pressure, leading to weak or slow operation, a repair kit can help restore efficiency.
✅Erratic or Slow Hydraulic Functions – If lifting, steering, or braking systems become sluggish or inconsistent, worn seals or gaskets may need replacement.
✅Routine Maintenance – Regular servicing helps prevent major breakdowns by replacing aging hydraulic components before they fail.
✅Contaminated Fluid – If dirt or debris has entered the system, it can damage seals and O-rings, requiring a repair kit to replace affected parts.
✅Increased Operational Noise – Unusual whining, hissing, or knocking sounds may indicate worn seals or air leaks that need fixing.
✅After Heavy Use or High Pressure Loads – Trucks operating in harsh conditions or under heavy loads may experience accelerated wear on hydraulic components. A repair kit helps maintain peak performance.
1. Seals & O-Rings – Prevent fluid leaks and maintain system pressure.
2. Gaskets – Provide a secure seal between hydraulic components.
3. Washers – Help distribute pressure evenly and prevent leaks.
4. Bushings & Bearings – Reduce friction and wear in moving parts.
5. Valve Components – Restore proper control of hydraulic flow and pressure.
6. Pistons & Rods – Ensure smooth operation of hydraulic cylinders.
7. Dust Covers & Wipers – Protect internal components from dirt and debris.
8. Springs & Retainers – Maintain tension and alignment in hydraulic assemblies.
9. Pins & Clips – Secure components and prevent movement during operation.
10. Hydraulic Hoses & Fittings (optional) – Replace damaged or leaking connections.
Each kit is designed to match specific hydraulic systems, ensuring efficient repairs and long-lasting performance for heavy-duty trucks.
Working Principle of a Hydraulic Repair Kit
A Hydraulic Repair Kit restores the functionality of a truck's hydraulic system by replacing worn or damaged components, ensuring proper fluid flow and pressure regulation. The key working principles include:
1️⃣Sealing & Leak Prevention – New O-rings, seals, and gaskets prevent hydraulic fluid leaks, maintaining system efficiency and pressure.
2️⃣Pressure Regulation – Replacing worn-out pistons, valves, and springs restores proper pressure control, ensuring smooth hydraulic operation.
3️⃣Friction Reduction – Bushings, bearings, and washers minimize wear and tear on moving parts, extending the system's lifespan.
4️⃣Fluid Control & Direction – Valve components and fittings help regulate fluid flow, ensuring consistent hydraulic power delivery.
5️⃣Contamination Prevention – Dust covers and wipers protect internal components from dirt and debris, preventing system failure.
By restoring these critical functions, a Hydraulic Repair Kit helps maintain optimal performance, reducing downtime and extending the life of hydraulic systems in heavy-duty trucks.
Versatility of Hydraulic Repair Kit
Compatibility with Various Hydraulic Systems – The kit can be used in different types of hydraulic systems such as braking systems, steering mechanisms, lifting and hoisting equipment, and hydraulic pumps in trucks, construction machinery, and agricultural equipment.
Variety of Components – It includes a broad range of parts such as seals, O-rings, valves, bearings, gaskets, and pistons, which can be customized for different system configurations, ensuring effective repairs across multiple truck models and industries.
Adaptability for Different Applications – The kit can handle high-pressure systems, low-pressure systems, and medium-duty applications, offering flexibility to repair a range of hydraulic systems, from standard truck components to more complex machinery.
How To Maintain The 3 Piece Ball Valve?
The daily maintenance of the 3 Piece Ball Valve is indispensable. Regular maintenance of the three-piece all-inclusive ball valve can not only greatly reduce its failures in use, but also improve the service life of the three-piece all-inclusive ball valve. The daily maintenance of the three-piece all-inclusive ball valve is a very troublesome thing, because it uses the principle of the cam to make the valve ball separate from the sealing surface of the valve seat during rotation, and then push the valve ball to the valve seat to achieve sealing after rotating in place. When the valve is in the fully open position, the momentary needle turns the handwheel, and under the cooperation of the valve stem nut and the thrust bearing, the valve stem begins to descend and drives the ball to start to rotate. Connecting the rotating handwheel, the precise spiral curve groove track on the valve stem interacts with the guide pin embedded in it to drive the ball to rotate clockwise with the valve stem. When the valve is about to close, the valve stem drives the ball to rotate 90 degree without friction with the seat sealing surface.
1. The ball valve should be cleaned every other year so that the seat cavity is not easily polluted. In this way, the valve seat can move freely, and the appropriate amount of grease should be injected at the switch every year to reduce the gluing of the ball and the valve seat and the friction between the valve ball and the valve seat, and reduce unnecessary losses.
2. Use the good technical characteristics of the three-piece all-inclusive ball valve to weld the entire gas pipeline, which can not only enhance the overall stress resistance of the pipeline (including the valve), but also resist geological disasters (such as geological collapse). It can be used and avoids the possibility of air leakage. The reliability of the valve is improved and the service life is extended, which is more conducive to the installation and maintenance of the daily ball valve.

Xinlida is a professional manufacturer and exporter of Spare Parts for European and Japanese Auto Chassis Parts, such as Clutch Booster, Brake Air Master Booster, Repair Kit, King Pin Kit, Trunnion Seat and so on. The soul of Xinlida is " professionalism, innovation, quality, and dedication", running with modern enterprise management. In 2008 passed the ISO9001 international quality management system certification, in 2014 passed ISO/TS16949 quality system. Our market covers countries from Southeast Asia to Middle East Area, Europe, America etc.
FAQ
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