Leaf Spring
Your Professional Leaf Spring Supplier!
Kingko Industrial Co., Ltd was established in 2015, located in Suzhou, China(near Shanghai). We specialize in full range of spare parts exporting. Product: Engine, Electricity or Electronics, Body and Accessories, Drivetrain, Braking System, Steering System, Material and Equipment, Universal Parts, etc.
Why Choose Us
Professional Team
Our Team have been working in this field for over 8 years. After years of development, the company has created a wealth of experience in sales and after-sales service team,and has established an outstanding reputation among customers.
Our Certifications
We have our own factories and warehouses, All our factories are certified by ISO9001 and TS16949, some are OEM manufacturers.
Sales Market
Our customers are from all over the world, including customers from Europe, South America, Africa, South Asia, etc.

A leaf spring is a type of vehicle suspension spring, typically made of flat, curved strips of steel (leaves) stacked together. It acts as a flexible component that absorbs shocks and vibrations from uneven road surfaces, supporting the vehicle's weight and maintaining wheel contact. Leaf springs are often found in the rear suspension of trucks and older vehicles.
Product Specification
We provide the following product specifications:
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OEM # |
48210-0K530 |
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Engine Application |
|
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Vehicle Fit |
Toyota Hilux Series |
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Place of Origin |
China |
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Price Terms |
FOB |
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Minimum Order |
5 PCS |
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Delivery Estimation |
15 days |
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Standard Package Info |
Inner Box Size: Carton Size: Gross Weight: |
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Delivery port |
Shanghai |
Advantages of Leaf Spring
Weight and Back Load Capacity
A leaf spring suspension system excels at bearing heavy-duty loads on the vehicle's rear. While coil springs can also handle these loads, other factors make leaf springs the more economical choice without sacrificing performance and durability.
Simplicity
Leaf springs are simple and direct systems. They directly support the spring assembly's axle. They don't need the complex arrangements required by coil springs or other types of suspension.
Weight and Space Saving
Thanks to its simpler construction and relatively few parts, the leaf spring is lighter and occupies less space than other suspension systems. It can fit in cramped areas and doesn't add excessive weight to the vehicle.
Lower Cost
Leaf spring suspensions are more affordable to acquire, repair, and maintain in good condition. Their simplicity keeps their production cost low, so you spend less on new and replacement parts. It's also easier to check a leaf spring suspension for issues, identify the faulty part, and replace it.
Material of Leaf Spring
Leaf springs are most commonly made from high-strength steel alloys:
SUP9 and SUP11A are two grades of spring steel that are widely used in the automotive industry, especially in Asia. They are equivalent to the SAE grades 5155 and 5160, respectively. These steels have a medium carbon content (0.52-0.60% for SUP9 and 0.56-0.64% for SUP11A) and a high manganese content (0.65-0.95% for both grades), which enhance their hardenability and strength. They also contain chromium (0.65-0.95% for SUP9 and 0.70-0.90% for SUP11A), which improves their corrosion resistance and wear resistance.
5160 steel is one of the most popular types of steel used for leaf springs in North America. It is a high-carbon steel (0.56-0.64% carbon) with a low alloy content (0.75-1.00% manganese, 0.70-0.90% chromium, and up to 0.15% vanadium). It has excellent toughness, ductility, and fatigue resistance, making it ideal for heavy-duty applications. It also has good corrosion resistance and wear resistance, thanks to the chromium content.
9260 steel is another type of steel used for leaf springs, especially in Europe. It is a high-carbon steel (0.56-0.64% carbon) with a high alloy content (1.80-2.20% silicon, 0.80-1.10% chromium, and up to 0.15% vanadium). It has superior toughness, strength, and fatigue resistance, making it suitable for extreme conditions. It also has good corrosion resistance and wear resistance, thanks to the silicon and chromium content.
Composite materials are not steel, but they are also used for modern leaf springs. Composite materials are made of two or more different materials that are combined to create a new material with improved properties. For example, fiberglass, carbon fiber, and epoxy resin are common composite materials used for leaf springs. These materials have high strength, stiffness, and fatigue resistance, but low weight and density, making them ideal for reducing the vehicle weight and improving the fuel efficiency. They also have good corrosion resistance and wear resistance, making them durable and long-lasting.
Customization Process
Requirement Discussion: Contact us and provide your design drawings, size specifications, and other technical parameters.
Design Proposal: Our professional team will develop a design proposal and provide a quotation based on your requirements.
Sample Production: We produce samples according to the design proposal and conduct rigorous testing.
Mass Production: Upon your approval, we commence mass production to ensure timely delivery and consistent quality.
After-Sales Service: We offer ongoing technical support and service to ensure the long-term stable operation of our products.
Other Services
Machining:
We offers complete cylinder head, crankshaft and block machining; the life of the engine begins with precision machine work
Parts:
We is a warehouse distributor for major engine part manufactures servicing domestic, import, truck, and heavy duty engines
Rebuilding:
We builds engines around your customer's needs, for all the Rebuild, Repower and Restore motorheads out there
Engines:
We sells high quality re-manufactured engines with a three year, 100,000 mile no-fault warranty
FAQ
As one of the leading leaf spring suppliers in China, we warmly welcome you to wholesale cheap leaf spring in stock here from our factory. All customized products are with high quality and low price. For free sample, contact us now.
11210-0C010, , Timing Cover 13035 h1000
