Product Introduction
S2915510 Corrosion-resistant Stable Reliable Coil Spring for Lifan
Precision-engineered coil springs tailored for Lifan, restoring suspension integrity with OEM-spec reliability. Forged from SAE 9254 high-tensile chrome silicon steel, they deliver 20% higher fatigue resistance than generic alternatives—validated by 1 million+ load cycles per ISO 16231-3 standards. Designed to match factory geometry, they support vehicle weight, absorb road impacts, and maintain tire alignment for stable handling. Trusted by aftermarket professionals, these springs ensure lasting performance for ride restoration or light load upgrades. A cost-effective, safe upgrade for consistent drivability.
Product Advantage
1. Superior Material & Fatigue Performance
Crafted from SAE 9254 high-tensile chrome silicon steel—a premium alloy chosen for its resistance to bending and corrosion—we engineer our coil springs to outlast generic alternatives by 30%. They withstand over 1 million load cycles (tested to ISO 16231-3 standards), preventing sagging or cracking even with frequent heavy use. This material choice ensures lasting durability for drivers who demand reliability mile after mile.
2. Precision OEM-Spec Fitment
We reverse-engineer every spring to match Lifan’s original factory geometry—free length, spring rate, and end coil configuration—ensuring a plug-and-play installation. Unlike off-brand options, our coils retain your vehicle’s stock suspension alignment, eliminating fitment guesswork or compromised handling. Trust in a perfect match for consistent ride quality.
3. Enhanced Load Capacity & Stability
With a 15% higher load-bearing rating than standard aftermarket springs, ours reduce body roll, front-end sag, and uneven tire wear during cornering or light towing. By maintaining optimal tire-to-road contact, they improve traction and steering response—critical for both daily commutes and occasional heavy loads. Safety and control, redefined.
4. Rigorous Quality Control (TS 16949 Certified)
Every batch is subjected to 500+ hours of salt-spray testing (for corrosion resistance) and dynamic load validation to meet TS 16949 automotive standards. We reject 0.5% of products for minor deviations—ensuring only flawless springs ship. Backed by third-party lab reports, we offer transparency and peace of mind.
5. Cost-Effective Universal Upgrade
Suitable for most Lifan vehicles, our coil springs replace OEM units or upgrade basic aftermarket parts at 30% lower cost than dealership pricing. They deliver factory-grade performance for ride restoration or light customization—proving premium quality doesn’t have to break the bank.
Technical Parameters
| Parameter | Specification/Value | Test Standard/Certification |
| Material Grade | SAE 9254 High-Tensile Chrome Silicon Steel | ASTM A401 (Alloy Spring Steel; Industry-Standard for Durability) |
| Free Length | 150–300mm (Customizable to match Lifan OEM factory dimensions) | OEM Reverse Engineering + Dimensional Inspection |
| Outer Diameter (OD) | 25–50mm (Engineered to fit Lifan’s original suspension mounting points) | ISO 18296 (±0.1mm Tolerance for Perfect Fitment) |
| Wire Diameter (WD) | 4.0–8.0mm (Optimized for uniform load distribution & reduced stress concentration) | ISO 18296 (Consistent WD Across Batches) |
| Spring Rate | 50–120 N/mm (15–20% Higher Than Generic Aftermarket Coils) | ISO 16231-2 (Static Load Testing for Stiffness) |
| Max Load Capacity | Up to 800kg (Sustains Heavy Loads Without Sagging) | ISO 16231-3 (Dynamic Load Validation)
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| Fatigue Life | ≥1,000,000 Load Cycles (Zero Sag/Cracking at Factory-Recommended End-of-Life) | ISO 16231-3 (Accelerated Fatigue Testing) |
| Corrosion Resistance | ≤50µm Rust Penetration After 500hrs Salt Spray (Prevents Premature Degradation) | ISO 18296 (Salt Spray Testing per Automotive Norms) |
| Quality Compliance | TS 16949:2016 Certified (Automotive Quality Management System) | TÜV SÜD Third-Party Audit (Traceability & Process Control) |
Product Uses
Here are specific application scenarios of Coil Spring:
1. Daily Commuting
Ideal for year-round city/highway driving, our springs reduce road-induced vibrations by 15% (ISO 16231-2 tested), preserving tire alignment and cutting uneven tread wear by up to 20%. They maintain factory-like ride comfort, ensuring consistent handling on potholed streets or rush-hour traffic—perfect for drivers prioritizing low maintenance and reliability.
2. Light Payload & Weekend Trips
Built for versatility, our springs support 20% higher static loads than generic aftermarket options. Whether hauling groceries, luggage, or weekend gear, they resist sagging and front-end dip—keeping suspension stable on light off-road trails or camping trips. Trusted by DIYers for hassle-free performance beyond daily use.
3. Long-Haul Road Trips
Engineered for endurance, our springs survive ≥1 million load cycles (ISO 16231-3 certified)—critical for cross-country drives. They maintain suspension geometry over thousands of miles, reducing driver fatigue and ensuring consistent tire-road contact for safer, more comfortable extended journeys.
4. Aftermarket Suspension Restoration
Solves worn OEM spring issues—like bottoming out or uneven ride height—by matching factory specs (±0.1mm tolerance). TS 16949-certified quality guarantees a plug-and-play fit to restore original handling. Ideal for budget-conscious owners seeking OEM-level performance without dealership prices.
5. Occasional Light Towing
Handles small trailers, bike racks, or moving gear with a max load capacity of 800kg (dynamic tested). Prevents suspension compression that causes poor steering response, ensuring your vehicle stays stable even when loaded—safe for family outings or transporting equipment.
Product Operate Guide
For safe, peak performance: First, align our springs with your Lifan’s OEM specs (free length/spring rate) using our included fitment guide—ensuring a precise match. Install via a certified mechanic to avoid misalignment; our TS 16949-certified springs resist sagging through 1M+ load cycles (ISO 16231-3 tested). Post-install, take a short test ride to confirm restored ride height/stability—no adjustments needed. Trust factory-grade precision for hassle-free, long-lasting use.
