Yutong King Long Bus Air Suspension Spring Upper Cover 2931-00182 Limit Block
Product Description
Protect the longevity and performance of your fleet’s suspension with the essential Air Spring Buffer Stop (Limit Block) from Nanjing Dingguan Auto Parts Co., Ltd. This critical component, part number 2931-00182, is designed to integrate with the upper mounting plate of the air spring assembly on Yutong and King Long buses.
Functioning as the final line of defense, the buffer stop prevents damage during moments of maximum suspension compression, such as when hitting a large pothole or speed bump. It absorbs the final impact, preventing harsh metal-to-metal contact between suspension components and protecting the air spring itself from being over-compressed and damaged. A missing or degraded buffer stop can lead to a jarring ride and expensive repairs.
Key Features & Benefits:
- Critical Suspension Protection: Safeguards the air spring, shock absorbers, and chassis components from damage caused by severe impacts and suspension bottoming-out.
- Perfect Compatibility: Engineered as a direct replacement for part 2931-00182, ensuring a perfect fit on the air spring top cover for both Yutong and King Long models.
- Superior Impact Absorption: Manufactured from a high-density, resilient polymer compound that is resistant to compression, oil, and environmental wear, guaranteeing a long service life.
- Restores Ride Comfort: Eliminates the harsh clanking noises and jarring impacts associated with a failing buffer stop, significantly improving passenger comfort and ride quality.
As a dedicated manufacturer, Nanjing Dingguan ensures every component meets rigorous quality standards. Protect your suspension investment.
Contact us today to request a competitive quote.
Product Name: | Limit stop block | Part Number; | 2931-00182 |
Quality control: | ISO 16750-3+GB/T 18697-2002 | Size: | H=52mm,φ152.5mm,M10*1 |
mmType: | Hanging accessories | Place of origin: | Nanjing, China |
Materials: | EPDM | 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: | 2931-00182 | Factory quality inspection: | 100% inspection |
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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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