Bus Air Suspension Spring Height Adjustment Valve 90554147
Product Description
Ensure the optimal performance, safety, and comfort of your bus fleet with the high-precision Air Suspension Height Control Valve from Nanjing Dingguan Auto Parts Co., Ltd. Part number 90554147 is a critical component for any vehicle equipped with an air suspension system, acting as the brain that maintains a constant and correct ride height.
This leveling valve automatically responds to changes in the vehicle's load, such as passengers boarding or alighting. It intelligently directs compressed air to inflate or deflate the air springs (bellows) as needed, ensuring the bus chassis remains at its pre-set optimal height. A properly functioning valve is essential for stable handling, effective braking, proper headlight alignment, and a smooth, comfortable ride for passengers.
Key Features & Benefits:
- Precise & Responsive: Offers accurate and rapid response to load changes, maintaining a consistent and safe vehicle posture at all times.
- Direct Replacement: Engineered as a direct fit for part number 90554147, this valve guarantees a seamless, hassle-free installation on a wide range of compatible bus models.
- Robust Durability: Constructed from high-grade, corrosion-resistant materials, it is built to withstand the harsh conditions of daily commercial use, including exposure to road debris and moisture.
- Enhanced Ride Quality: By maintaining the correct suspension level, it absorbs road imperfections effectively, significantly improving passenger comfort and reducing component wear.
As a specialized manufacturer, Nanjing Dingguan Auto Parts ensures every valve meets stringent quality standards.
Contact us today to request a competitive quote and keep your fleet riding smoothly.
Product Name: | height valve | Part Number; | 90554147 |
Quality control: | ISO 9001+ECER66+GB/T 13061 | Size: | standard |
Type: | Hanging accessories | Place of origin: | Nanjing, China |
Materials: | metal | 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: | 90554147 | 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. |
Contact Us