Product Description
Ensure the smooth and reliable operation of your Yuchai-powered
buses with the Belt Tensioner Pulley (Part No. MS40B-1002450A). This essential engine component plays a critical role in
maintaining the correct tension on accessory drive belts,
preventing slippage, reducing noise, and maximizing the lifespan of
both the belts and the components they drive (like alternators and
water pumps).
Engineered for durability and consistent performance, this
tensioner pulley assembly (MS40B-1002450A) is designed specifically
for the demands of bus operation with Yuchai engines. Investing in
a quality tensioner prevents costly downtime associated with belt
failure.
Nanjing Dingguan Auto Parts Co., Ltd. is your trusted source and an authorized distributor for this product. We guarantee genuine, high-quality parts to keep
your fleet running efficiently. Partner with us for reliable
sourcing of authentic Chinese bus components.
specification
Product Name: | belt tensioner pulley | Part Number; | MS40B-1002450A |
Quality control: | IATF 16949/GB/T 19055 | Size: | standard |
Type: | Engine parts | Place of origin: | Yulin, China |
Materials: | | Packaging: | Paper packaging/custom packaging |
Minimum order quantity: | 1 | Application: | bus Yuchai engine |
Status: | brand new | Cargo transportation: | TNT, EMS, UPS, FedEx, DHL or according to your requirements. |
Customs code: | MS40B-1002450A | Factory quality inspection: | 100% inspection |
Product detailed pictures

How to buy the right bus accessories
1.Please provide VIN number |
2.Please provide clear photos |
3.Please provide the OEM number |
4.lf you are unsure, please contact us. |

Nanjing Dingguan Auto Parts Co., Ltd.
-- Your reliable partner for bus spare parts.
About Us
Nanjing Dingguan Automotive Parts Co., Ltd. specializes in
providing high-quality and cost-effective parts for buses and
commercial vehicles. We focus on the global market, have rich
experience in exporting bus and truck parts, provide services to
distributors and fleet operators, and provide tailor-made solutions
to meet different needs.
Warehouse and cargo display

About shipping and packaging
transportation | TNT, EMS, UPS, FedEx, DHL or as per your requirement. |
packaging | Bubble wrap, cartons, wooden boxes, and pallets are used to avoid
damage to goods caused by bumps. |

common problem
1: Can you provide an accurate price? |
Sure. You need to provide the vehicle VIN number, provide the
product OEM code, or provide a clear product photo. |
2: What's your minimum order quantity? |
No minimum order quantity, of course, if you buy more items from
our company, you can get preferential prices and discounts. |
3: What's the delivery time? |
Air freight orders take 5 to 8 days. Sea freight orders take 15 to
25 days. |
My advantage
1:High-Quality Bus Components |
Specialized in premium aftermarket bus parts including engines,transmissions, and braking systems, built for durability and
performance. |
2:Comprehensive spare parts solution |
We offer a full range of bus accessories: filters, suspension
components, electrical components, and interior accessories for all
major bus brands. |
3: ISO-Certified Manufacturing |
Our ISO 9001/TS 16949-certified products ensure strict quality
control, reliability, and compliance with international
standards.ISO |
4: Global Bus Part Coverage |
Our products are compatible with leading bus models from Europe,
Asia, and the Americas. |
5;Extensive product catalog |
Engine parts, HVAC systems, lighting, wheels and safety components
covering city, intercity and long-distance buses. |
Contact Us