Nanjing Dingguan Automotive Parts Co., Ltd.

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Suzhou King Long Higer Bus Air Suspension Spring/Airbag 644

China Suzhou King Long Higer Bus Air Suspension Spring/Airbag 644

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Suzhou King Long Higer Bus Air Suspension Spring/Airbag 644

MOQ： 1
Price： $18/pieces 5-49 pieces
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Payment Terms	T/T
Supply Ability	5000/month
Delivery Time	5-15day
Packaging Details	Carton, wooden box, custom packaging
lifespan	＞300 million times
Maintenance requirements	Maintenance-free
Operating temperature range	-40°C to +80°C
Gas supply components	Air compressor
Sensor type	Height sensor
Structure type	Airbag type
Work pressure range	Fixed value
Tire cord layer material	plastic
comfortableness	high
Lifting bridge function	have
Brand Name	Dingguan
Model Number	644
Certification	ISO 9001+ECER66+GB/T 13061
Place of Origin	Nanjing, China

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Product Details
Company Details

Product Specification


Payment Terms	T/T	Supply Ability	5000/month
Delivery Time	5-15day	Packaging Details	Carton, wooden box, custom packaging
lifespan	＞300 million times	Maintenance requirements	Maintenance-free
Operating temperature range	-40°C to +80°C	Gas supply components	Air compressor
Sensor type	Height sensor	Structure type	Airbag type
Work pressure range	Fixed value	Tire cord layer material	plastic
comfortableness	high	Lifting bridge function	have
Brand Name	Dingguan	Model Number	644
Certification	ISO 9001+ECER66+GB/T 13061	Place of Origin	Nanjing, China

DG644 rubber air spring / air bag / Air spring /1S285-24/664N/8017/556-03-8017/1R1A390 295/W01-095-0118/02.200.24.40.0/0689677/0696229/4.771.170.000/4771143/81.43601.0017/3073280001

Product Description

Introducing the Air Suspension Spring 644 for Suzhou King Long & Higer Buses—engineered and supplied by Nanjing Dingguan Parts Co., Ltd. This precision-crafted air spring is a direct-fit replacement designed to restore ride comfort, stability, and handling on popular city and intercity bus models.

Key Features
• Precise Compatibility: Tailored for Suzhou King Long and Higer bus chassis, part number 644 delivers exact mounting dimensions for hassle-free installation.
• Heavy-Duty Construction: Reinforced rubber bellows bonded to a high-tensile steel piston and base plate ensure long-term durability under repetitive load cycles.
• Superior Ride Comfort: The progressive air spring design absorbs road shocks and vibrations, reducing noise and providing passengers with a smooth, fatigue-free journey.
• Enhanced Safety & Stability: Consistent air pressure support maintains optimal vehicle height and weight distribution, improving braking performance and cornering control.
• Corrosion-Resistant Finish: All metallic components are treated with anti-rust coatings to withstand harsh weather conditions and roadside contaminants.
• Stringent Quality Control: Manufactured in ISO 9001–certified facilities and subjected to dynamic fatigue and burst-pressure tests, each unit meets or exceeds OEM specifications.

Why Choose Nanjing Dingguan Parts Co., Ltd.?
With over a decade of specialization in commercial vehicle suspension systems, we deliver reliable parts and personalized service to global bus operators and spare-parts distributors. Our dedicated R&D team continuously refines design and material selection, while our streamlined logistics network ensures prompt delivery to your warehouse or workshop.

Optimize your fleet’s performance and passenger satisfaction with the Air Suspension Spring 644. Contact Nanjing Dingguan Parts Co., Ltd. today for competitive pricing, minimum order quantities that suit your needs, and technical support you can rely on.

Product Name:	Air shock absorber spring	Part Number;	644
Quality control:	ISO 9001+ECER66+GB/T 13061	Size:	Ф1=Ф2=130.8,H=395
Type:	Suspension accessories	Place of origin:	Nanjing, China
Materials:	Neoprene	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:	644	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.

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory

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Business Type:

Manufacturer,Distributor/Wholesaler,Exporter 


Year Established:

2003 


Total Annual:

5000000-10000000


Employee Number:

100~200 
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Ecer Certification：

Verified Supplier 

Nanjing Dingguan Automotive Parts Co., Ltd.: Your Trusted Global Automotive Solutions Partner Nanjing Dingguan Automotive Parts Co., Ltd. is an outstanding manufacturer of high-quality automotive parts and a global supplier. We have always been unswervingly committed to excellence and innovation, fo... Nanjing Dingguan Automotive Parts Co., Ltd.: Your Trusted Global Automotive Solutions Partner Nanjing Dingguan Automotive Parts Co., Ltd. is an outstanding manufacturer of high-quality automotive parts and a global supplier. We have always been unswervingly committed to excellence and innovation, fo...

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Reach Us
Nanjing Dingguan Automotive Parts Co., Ltd.
Gaoli Auto Parts City, No. 18, Qixia Avenue, Nanjing
https://www.bussparesparts.com/

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