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Sinotruk HOWO Engine Parts: Cylinder Block 61500010383
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Main brake cylinder (pneumatic hydraulic booster) 4120000675074
Main brake cylinder with pneumatic hydraulic booster 4120000675074 for trucks. Strengthens the force on the brake pedal, transfers operating pressure to the brake system, standard mounting dimensions to replace the original brake unit part.
Description
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Master brake cylinder with pneumatic hydraulic booster 4120000675074 for trucks
When your vehicle's braking system requires flawless performance, each component must do its job without compromise.Main brake cylinder with pneumatic hydraulic booster 4120000675074- this is exactly the unit that increases the force on the brake pedal and transmits operating pressure to the brake system with maximum precision. Standard fit dimensions provide a direct replacement of the original brake assembly part without additional modifications. CompanyMettleadsupplies this part directly from its factory in China, ensuring competitive pricing and consistent quality for your fleet.
Functional benefits and benefits for your business
Reliable braking boost
The pneumohydraulic booster, built into the design of the main brake cylinder 4120000675074, greatly increases the force that the driver applies to the brake pedal. Thanks to this, the operator of heavy equipment spends less physical effort, and the braking system works faster and more efficiently. This directly affects the safety of the machine on construction sites and quarries.
Accurate transmission of working pressure
The cylinder transmits operating pressure to the brake system evenly and without delay. Internal seals are made of wear-resistant materials that maintain tightness even under high loads and temperature changes. The result is consistent braking throughout the life of the part.
Standard mounting dimensions - installation without modifications
The part fully corresponds to the original mounting dimensions, so replacing a worn or damaged master cylinder is quick. Your mechanics do not waste time adjusting fasteners, and the equipment returns to service in the shortest possible time. For the buyer, this means reduced downtime and savings on repair work.
Factory price without intermediaries
Mettlead works directly with our manufacturing sites, so you get the 4120000675074 Power Brake Master Cylinder at the factory price. The absence of intermediate links allows you to optimize your budget for spare parts without sacrificing quality.
Specifications
| Parameter | Meaning |
|---|---|
| Article number (OEM number) | 4120000675074 |
| Node type | Main brake cylinder with pneumatic hydraulic booster |
| Purpose | Increasing the force on the brake pedal, transferring operating pressure to the brake system |
| Landing dimensions | Standard, meets OEM specifications |
| Compatibility | Engineering equipment, front loaders (loaders) |
| Housing material | Cast iron/aluminum alloy (depending on batch) |
| Seals | Oil-resistant rubber with increased wear resistance |
| Quality control | 100% tightness and operating pressure testing before shipment |
| Packaging | Neutral/branded/customer's request |
| Production | China (manufacturer) |
Scope and compatibility
Adaptive technology models
The main brake cylinder with pneumatic hydraulic booster 4120000675074 is designed for installation on the following types of machines:
- Engineering Technology (工程机械)— excavators, bulldozers, motor graders
- Front loaders (装载机)— wheel loaders of various lifting capacities
Typical replacement scenarios
You will need to install a new master cylinder 4120000675074 in the following situations:
- Brake fluid leaking from cylinder body- when the sealing collars lose their tightness, liquid begins to seep out and the pressure in the system drops.
- Brake circuit pressure relief (泄压)— the pedal fails, braking becomes sluggish and unpredictable, which creates a direct threat to safety.
- Scheduled Maintenance— preventive replacement after a certain number of engine hours to prevent emergency failures.
Timely replacement of a worn-out unit prevents expensive repairs of the brake line and eliminates the risk of accidents on site.
OEM/ODM capabilities and customized packaging
Mettlead understands that each distributor has different branding and packaging requirements. Therefore, we offer flexible terms of cooperation:
- White-label packaging— the item is delivered in a neutral box without logos, ready for sale under your brand.
- Custom Packaging— we will apply your logo, article number and barcode to the packaging in accordance with your designs.
- Strict quality control— each master brake cylinder with pneumatic hydraulic booster undergoes pressure testing and leak testing before packaging.
- Flexible order quantities- from a trial batch for testing to container deliveries for large distributors.
We also invite potential partners to visit our warehouse and production base in China to see for themselves the quality of our products and the reliability of our processes.
Client case: how brake master cylinder 4120000675074 solved the problem of a vehicle fleet in Central Asia
A distribution company from Uzbekistan services a fleet of front loaders at a mining enterprise. During one season, several vehicles had a brake fluid leak from the master cylinder - the pedal sank, the pressure in the system dropped, and the equipment had to be stopped.
The buyer contacted Mettlead with a request formaster brake cylinder with pneumatic hydraulic booster 4120000675074. We prepared a batch of 12 units, each part passed a leak test. The shipment took place within 5 working days after payment.
Result: all cylinders were installed without modifications due to standard mounting dimensions. The forklifts returned to service, and the customer noted that the braking force was more consistent and predictable. Since then, this distributor has regularly ordered brake replacement parts from us for its fleet.
Frequently asked questions (FAQ)
Why does the brake pedal sag after installing a new brake master cylinder?
The most common cause is air in the brake line. After installing the master brake cylinder with pneumatic hydraulic booster 4120000675074, it is necessary to completely bleed the brake system, removing air pockets from the circuit. It is also recommended to check the condition of the brake hoses and fittings for air leaks.
How to determine that the brake master cylinder 4120000675074 has failed?
The main signs of a malfunction: the brake pedal becomes soft and sinks to the floor, brake fluid leaks are visible in the cylinder area, and when the pedal is held, the pressure gradually drops. If you notice at least one of these symptoms, the part must be replaced.
Is this cylinder suitable for replacing the original part without modification?
Yes, the main brake cylinder with pneumatic hydraulic booster 4120000675074 is manufactured according to the standard mounting dimensions of the OEM part. The mounting holes, threaded fittings and general dimensions completely coincide with the original, so installation is carried out in the original place without any modifications.
What is the service life of this brake cylinder?
Under normal operating conditions and timely replacement of brake fluid, the service life of the part is comparable to the original unit. It is recommended to inspect the condition of the seals every 2000 operating hours and change the brake fluid according to the equipment manufacturer's regulations.
Can this cylinder be used in low temperatures?
The sealing cuffs of the main brake cylinder 4120000675074 are made of frost-resistant, oil-resistant rubber, which retains elasticity at low temperatures. However, when operating below -30°C, it is recommended to use brake fluid with the appropriate temperature range.
Request a quote now
Your equipment should not be idle due to a worn brake cylinder. Send us a request formaster brake cylinder with pneumatic hydraulic booster 4120000675074— we will prepare a commercial offer with the factory price, shipping times and delivery conditions to your region.
- Please indicate the required quantity and preferred type of packaging
- Receive a cost estimate within 24 hours
- Take advantage of flexible and secure payment methods
Contact Mettlead manager— we will answer all technical questions and help you select brake system parts for your fleet.
contact us
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