China best CZPT Belt Tensioner Pulley 3957434 3976834 for CZPT Engine QSB pulley drive

Product Description

CZPT Belt Tensioner Pulley 3957434 3976834 for CZPT Engine QSB, with list of belt tensioners for CZPT engines, as below:

Engine Description Part # Part # Part # Part # Part #
4BT belt tensioner 3922900 3914854 3936210 3936198 3936207
4BT belt tensioner 3936204 3937555 3936197 3936206 3936201
6BT belt tensioner 3937553 3934818 3914086 3978571 3936202
6BT belt tensioner 3936203 3924026 3978571 4994573 3976832
6BT belt tensioner 3928748 3934824 3936208 3973825 3934814
6BT belt tensioner 5333478 3917440 3934819 3936205 5333481
6BT belt tensioner 3918944 3934817 3973822 3921524 3934816
6BT belt tensioner 3976833 3957433 393 0571 3973824 5333486
6BT belt tensioner 3922549 3925625 3934820    
6CT belt tensioner 3937556 4898548 4987964 3936212 3934830
6CT belt tensioner 3969564 3959042 3991495 3936213 3976831
6CT belt tensioner 3933725 3934831 3973823 3917485 5333477
6CT belt tensioner 3934822 3973827 5333480 3967190 3281583
6CT belt tensioner 3934821 3945527 5259571    
6ISBE belt tensioner 3947574 4891116 4936640 4987964 3979316
QSB belt tensioner 3976834 3957434      
ISF2.8 belt tensioner 5262500        
ISF3.8 belt tensioner 5267127 5287571 4980639 5287571  
K19 belt tensioner 3009639        
M11 belt tensioner 3457141 3400885 3157189 3062602  

Our complete engines including : ( we have parts for many other brands )

SN Models
1 4BT3.9, 6BT5.9, 4ISBE4.5, 6ISBE6.7, QSB4.5, QSB6.7, ISB
2 6CT8.3, L8.9, L9.3, L9.5, ISLe8.9, QSL
4 ISF2.8, ISF3.8, QSF2.8, QSF3.8
5 ISZ13, QSZ13, ISG
6 NT855
7 KT19, KT38, KT50, QSK19, QSK38, etc
8 Deutz BFM1013, BFM1015, FL912, FL913, FL914, FL413, FL513
9 MWM TBD234, TD226B
10 Perkins 1003, 1004, 1006, 403, 404, 1103, 1104, 1106
11 Isuzu 4JB1, 4HK1, 6HK1, 4BD1, 6BD1, 4KH1, 6UZ1
12 All CZPT engines
13 All Advance gearbox, marine and industrial
14 Generator sets, marine and land-use

for different applications, such as:

SN Applications
1 diesel generator set
2 water pump set, fire pump set
3 construction and engineering machinery (crane, excavator, bulldozer, loader, etc)
4 Automobile (bus, coach, shuttle, etc)
5 marine main propulsion, marine auxiliary generator set

And besides complete engines, we also export a lot of engine parts parts, including:

SN Part Descriptions
1 cylinder head, cylinder block, cylinder liner
2 piston, piston ring, conrod
3 main bearing, conrod bearing, thrust bearing
4 fuel injector, fuel injection pump, common rail
5 oil pan gasket, cylinder head gasket
6 overhaul gasket kit, upper gasket kit, lower gasket kit
7 oil pan
8 fuel transfer pump, water pump, oil pump, vacuum pump, power steering pump
9 oil filter, fuel filter, fuel water separator, air filter, Etc

We also deal with many other brands of engines and gearboxes, etc, including:

SN Brands
1 Deutz, MWM
3 Detroit
4 Weichai
5 Isuzu
6 Komatsu
7 Perkins
8 Yuchai
10 Advance
11 Fada
12 Jinbei, Brilliance
13 Iveco, Yuejin

Question: What is the price ?
Answer: Our prices are determined by various factors, including: Brand, Model, Power, Quantity, Price Term (FOB, CIF, CPT, FCA, etc), Certificates, etc.
Question: What is the MOQ ?
Answer: for complete engine, 1 set; for engine parts, 1 engine set;
Question: Are samples available ?
Answer: Sample order is acceptable, but with higher unit price.
       For regular partners, if necessary, free samples are available.
Question: How long is the production cycle (lead time) ?
Answer: for engine parts, we usually have enough stock; for engines, usually around 10-20 days; for stock engine, usually 1 week.
Question: How long is the shipment?
Answer: if by Express, usually 3-4 working days; if by air, usually 3-5 working days; if by sea, 3-7 days to Southeast Asia, 15-20 days to Middle East, South Asia and Australia, 20-25 days to Europe, USA and Africa, 30-35 days to Latin America and other regions.
Question: What are your payment methods ?
Answer: we accept T/T (bank wire transfer), L/C, Western Union, Money Gram, Sigue, Secured Trade through Made-in-China, etc.
Question: Do you supply any other brand ?
Answer: we entered stock engine industry since 2016, mainly focusing in engines in stock, never used, still under good condition, made in US/UK/Germany/Japan/Korea/China, etc. Sometimes we have stocks of other brands than our normal list of brands. Thus, any inquiry is warmly welcomed and we will always do best to support customers.

Certification: CCC, ISO9001, TS16949
Standard Component: Standard Component
Technics: Casting
Engine: QSB, 6ISBE
Part Numbers: 3957434, 3976834
Weight: 1.3kg
US$ 75.5/Piece
1 Piece(Min.Order)

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The benefits of using pulleys

A pulley is a mechanical device that converts force into rotation. There are many advantages to using pulleys. Let’s take a look at a few of them. This article will describe the advantages, types, applications, and power sources of pulleys. You can then choose the pulley that best suits your specific needs. If you’re looking for a new tool to help you with a certain task, this article is for you.

Mechanical advantage

The mechanical advantage of a pulley can be defined as the ratio of applied force to the applied force. The mechanical advantage of a pulley can be calculated by considering several factors, including weight and friction. It can be calculated by the force applied per unit length of rope and the number of pulleys used. In a single-circuit system, the force required to lift a heavy object is equal to the user’s body weight.
The mechanical advantage of a pulley can be realized by comparing it to a seesaw. Both uses of rope are suitable for lifting objects. A rope four times heavier than a kilo is four times as effective. Because the forces on both sides of the pulley are equal, a small force is enough to move a large weight a short distance. The same force can be applied to a large mass to lift it several meters.
After introducing the concept of mechanical advantage, learners will practice using the pulley system. In addition to testing the pulley system, they should also calculate its mechanical advantage. Using either the instructor-provided handout or the learner’s workbook, students will determine how easily the pulley system functions. Once they have completed the test, they can discuss their results and how the system can be improved. These courses are best completed as part of a mini-unit or as a standalone main course.
The mechanical advantage of the pulley system is proportional to the number of rope loops. This circuit requires the same force as the dual circuit to lift heavy objects. A single lap requires only a third of the force to lift a double lap, while three laps require almost half the energy required for a single lap. The mechanical advantage of the pulley system becomes constant as the number of cycles increases.
The 3:1 Mechanical Advantage system feels like lifting a 300-pound load with three feet of rope. The three-foot-long rope moves the load one foot high. Understanding the mechanical advantages of pulleys is critical for rescuers when trying to create the perfect pulley system. Ideally, the pulley system will be anchored to a nearby rock, tree, pole or person – if the weight is not too heavy.

Types of pulleys

There are several types of pulleys. V-belt pulleys are the type commonly used in vehicles and electric motors. “V” pulleys require a “V” belt, and some even have multiple V grooves. “V” pulleys are often used in heavy duty applications for power transmission because they reduce the risk of power slippage.
Composite pulleys combine the properties of fixed and movable pulleys. Compound pulleys are able to change the direction of force while requiring relatively low force to move even the heaviest loads. Mechanical advantage is a measure of the effectiveness of a machine or equipment. It can be divided into three categories: force, distance and mechanics. Once you understand how each type works, you can design complex machines.
Fixed pulleys: These pulleys are the most basic type of pulleys. They use ropes and slotted wheels to move with the lifted object. Because they are so simple to set up, lifting heavy objects is a breeze. Although the moving object feels light, it is actually heavier than it actually is. These pulleys are used in construction cranes, utility elevators and many different industries.
Compound Pulley System: A pulley pulley is a combination of two fixed pulleys and one movable pulley. Compound pulley systems are effective for moving heavy objects because they have the largest force multipliers and are flexible enough to change the direction of the force as needed. Composite pulley systems are commonly used in rock climbing, theater curtains and sailing. If you’re looking for a pulley system, you can start by evaluating the types of pulleys and their uses.
Construction Pulleys: These are the most basic types of pulleys and have wheel rails. These pulleys can be lifted to great heights and attached to chains or ropes. They allow workers to access equipment or materials from greater heights. They are usually mounted on wheels with axles and secured with ropes. They are essential tools for construction workers. There are many different types of pulleys out there.

energy source

Belts and pulleys are mechanical devices used to transmit energy and rotational motion. The belt is connected to the rotating part of the energy source, and the pulley is mounted on the other. One pulley transmits power to the other, while the other changes the direction of the force. Many devices use this combination, including automobiles, stationary generators, and winches. It is used in many home applications, from conveyors to treadmills. Pulleys are also used for curtains in theater halls.
Pulley systems are an essential part of modern industry and everyday life. Pulleys are used in elevators, construction sites and fitness equipment. They are also used in belt-driven generators as backup power. Despite their simple and seemingly humble beginnings, they have become a versatile tool. From lifting heavy objects to guiding wind turbines, pulley systems are widely used in our daily lives.
The main reason why pulleys are so popular is the mechanical advantage they offer. They can lift a lot of weight by applying very little force over longer distances. For example, a small motor can pull 10 meters of cable, while a large motor can pull 1 meter. Also, the work done is equal to the force times the distance traveled, so the energy delivered to the large motor is the same.
The power source for the pulley system can be cables, belts or ropes. The drive element in a pulley system is usually a rope or cable. A belt is a loop of flexible material that transmits motion from one pulley to another. The belt is attached to the shaft and a groove is cut in the pulley. The belt then transfers energy from one pulley to the other through the system.


A pulley is a mechanical device used to lift heavy objects. They reduce the amount of work required to lift heavy objects and are an excellent choice for many applications. There are several different applications for pulleys, including elevators, grinders, planters, ladder extensions, and mountaineering or rock climbing. Let’s take a look at some of the most popular uses for pulleys in modern society. These include:-
A pulley is a mechanical device that changes force. To use, you wrap the rope around it and pull down to lift the object. While this device is very useful, a major limitation of using pulleys is that you still have to apply the same force to lift the object as you would without the pulleys. This is why people use pulleys to move large objects like furniture and cars.
In addition to lifting heavy objects, pulleys are used in elevators, flagpoles and wells. These systems allow people to move heavy objects without straining their backs. Many other examples of pulleys in the home include garage doors, flagpoles, and elevators. They also help raise and lower flagpoles, which can reach several stories high.
There are two basic types of pulleys: movable and fixed. Fixed pulleys are attached to a ceiling or other object using two ropes. Modern elevators and construction cranes use movable pulleys, as do some weight machines in gyms. Composite pulleys combine movable and fixed pulleys to minimize the force required to move heavy objects.
Another type of fixed pulley is the flagpole. A flagpole can support a country, organization, or anything else that needs to be lifted. A taller flagpole creates a prouder moment for those who support it. The operation of the rope and pulley mechanism is very simple. The user simply attaches the flag to the rope, pulls the pulley, and he or she can watch the flag rise and unfold.

China best CZPT Belt Tensioner Pulley 3957434 3976834 for CZPT Engine QSB   pulley driveChina best CZPT Belt Tensioner Pulley 3957434 3976834 for CZPT Engine QSB   pulley drive
editor by CX


sprocket pulley

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