J4208-1002400A Belt Tensioner 2AV13 for Yuchai YC6105ZQC Diesel Engine Parts
The J4208-1002400A belt tensioner is an essential component in the engine belt drive system of Yuchai YC6105ZQC diesel engines. It is designed to maintain proper belt tension, ensuring smooth operation of belt-driven components such as the alternator, water pump, and fan.
Constructed with high-strength steel and durable rubber materials, this tensioner provides stable tension control, reduces belt slippage, and extends the service life of the entire drive system.
Constructed with high-strength steel and durable rubber materials, this tensioner provides stable tension control, reduces belt slippage, and extends the service life of the entire drive system.


Applications
● Yuchai YC6105ZQC diesel engine
● Construction machinery
● Heavy-duty trucks
● Industrial diesel equipment
● Construction machinery
● Heavy-duty trucks
● Industrial diesel equipment
Product Advantages
● Stable Belt Tension
Maintains consistent belt tension, preventing slippage and ensuring reliable operation of engine accessories.
● Improved System Efficiency
Ensures synchronized operation of alternator, water pump and other belt-driven components.
● Durable Construction
Made of high-strength steel and rubber materials, resistant to wear and fatigue.
● Reduced Noise & Vibration
Helps minimize belt vibration and noise, improving engine smoothness.
● Extended Service Life
Optimized design reduces belt wear and increases overall engine reliability.
Technical Specifications
|
Item |
Specification |
|
Part Name |
Belt Tensioner |
|
Part Number (OE No.) |
J4208-1002400A |
|
Brand |
Yuchai |
|
Engine Model |
YC6105ZQC |
|
Engine Type |
Diesel Engine |
|
Material |
Rubber + Steel |
|
Type |
Engine Assembly |
|
Size |
PD125 × H90 mm (2AV13) |
|
Weight |
1.6 kg |
|
Certification |
ISO9001:2008 |
|
Package Size |
20 × 15 × 20 cm |
|
Gross Weight |
5.0 kg |
Function
The belt tensioner automatically adjusts and maintains the correct tension of the drive belt, ensuring efficient power transmission between engine components. It prevents belt slippage, misalignment, and premature wear, which are critical for engine performance and durability.
Packaging & Delivery
● Standard export carton or customized packaging
● Delivery time: 3–10 days
● Shipping: Sea / Air / Express
● Payment: T/T, L/C, Western Union
● Delivery time: 3–10 days
● Shipping: Sea / Air / Express
● Payment: T/T, L/C, Western Union
FAQ
Q1: What is your terms of packing?
A: Generally, we pack you goods use factory packing box or neutral boxes.
Q2: What is your terms of payment?
A: By TT. We'll show you the photos of the products and packages before you pay the balance.
Q3: How about your delivery time?
A: Generally, it will take 3 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q4: How do you make a price offer and how long is its validity?
A: We usually quote within 24 hours by email after we get your inquiry . If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority. The price valid with 30 days.
Q5: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q6: Do you accept third party inspection?
A: Yes, we do.
Q7: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them.
Q9: How to guarantee your after-sales service?
A: 1. Strict inspection during production;
2. Strictly check the products before shipment to ensure our packaging in good condition;
3. Track and receive feedback from customer regularly.
A: Generally, we pack you goods use factory packing box or neutral boxes.
Q2: What is your terms of payment?
A: By TT. We'll show you the photos of the products and packages before you pay the balance.
Q3: How about your delivery time?
A: Generally, it will take 3 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q4: How do you make a price offer and how long is its validity?
A: We usually quote within 24 hours by email after we get your inquiry . If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority. The price valid with 30 days.
Q5: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q6: Do you accept third party inspection?
A: Yes, we do.
Q7: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them.
Q9: How to guarantee your after-sales service?
A: 1. Strict inspection during production;
2. Strictly check the products before shipment to ensure our packaging in good condition;
3. Track and receive feedback from customer regularly.

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Mr. Perry Wu International Sales Director