King Long Yutong Higer Bus Pneumatic Door Pump Assembly MB50
Product Description
Ensure the safety, reliability, and seamless operation of your passenger doors with our robust Pneumatic Door Pump Assembly, model MB50.
This vital component is engineered for broad compatibility with China's leading bus brands, including King Long, Yutong, and Higer. As the heart of the automatic door system, this assembly uses pneumatic power to precisely control the opening and closing of bus doors, providing a smooth and safe experience for every passenger. A dependable door system is critical for maintaining tight schedules, enhancing passenger turnover efficiency, and upholding the highest safety standards.
Manufactured by Nanjing Dingguan Auto Parts Co., Ltd., this MB50 door pump assembly is a showcase of quality engineering. It is crafted from high-grade materials, featuring durable cylinders, high-performance seals, and precision valves to guarantee a long service life under the demanding conditions of constant, high-frequency use. Each unit undergoes rigorous testing to ensure it meets or exceeds OEM specifications for performance, reliability, and leak-free operation.
Key Specifications:
- Product Name: Pneumatic Door Pump Assembly / Door Operator
- Model: MB50
- Application: King Long, Yutong, Higer Buses
- Function: Controls the automatic opening and closing of passenger doors
Upgrade your fleet's performance and passenger safety with a component you can trust. Contact Nanjing Dingguan today for a competitive quote and keep your buses moving flawlessly.
Product Name: | door pump | Part Number; | MB50 |
Quality control: | ISO 16750-3+GB/T 18697-2002 | Size: | φ50mm*170mm |
Type: | Bus door accessories | Place of origin: | Nanjing, China |
Materials: | stainless steel | Packaging: | Paper packaging/custom packaging |
Minimum order quantity: | 1 | Application: | bus |
Status: | brand new | Cargo transportation: | TNT, EMS, UPS, FedEx, DHL or according to your requirements. |
OE: | MB50 | Factory quality inspection: | 100% inspection |
Product details 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. |
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