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01. PRODUCT OVERVIEW
Reliable Damping for Safer, More Stable Driving
02.PRODUCT SPECIFICATIONS
TECHNICAL DATA FOR ACCURATE FITMENT
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| Item | Details |
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| Brand | Hosal |
| Main OE Number | A2513200730 |
| Reference Number | 2513200730 / 251 320 07 30 / A2513200730/B4ED6Z010A01 |
| OE Manufacturer | Mercedes-Benz AG |
| Reference Type | Mercedes-Benz Genuine OE Number |
| OE Part Description | Front Shock Absorber |
| Original Part Replacement | A251320073064 — superseded part designation |
| Related OE Numbers | A2513202213 / A2513203513 / A2513203713 — aftermarket application references; verify VIN |
| Cross Reference | BILSTEIN 24-166621; GH GH-333390 |
| BILSTEIN Reference | 24-166621 — B4 Gas Monotube |
| GH Reference | GH-333390 — Gas Twin-Tube |
| KYB Reference | To Be Confirmed |
| SACHS Reference | To Be Confirmed |
| Monroe Reference | To Be Confirmed |
| Gabriel Reference | To Be Confirmed |
| TOKICO Reference | To Be Confirmed |
| Front Left OE | A2513200730 |
| Front Right OE | A2513200730 |
| Product Type | Front Gas Shock Absorber |
| Vehicle Brand | Mercedes-Benz |
| Vehicle Application | Mercedes-Benz R-Class — selected R280 / R300 / R320 CDI / R350 / R350 CDI / R550 models |
| Generation | First Generation R-Class |
| Chassis / Model Code | W251 / V251 |
| Model Years | 2006–2017 in aftermarket catalog; verify exact VIN and market |
| Engine Application | Selected V6 petrol, V6 diesel and V8 petrol variants; verify vehicle data |
| Vehicle Type | Luxury MPV / Crossover |
| Brand Country | Mercedes-Benz — Germany / 德国 |
| Main Market | Europe / North America / Asia |
| Drive Type | RWD / 4MATIC AWD, depending on vehicle and suspension configuration |
| Fitting Position | Front Axle |
| Side | Front Left / Front Right |
| Quantity per Vehicle | 2 pcs per front axle |
| Shock Absorber Type | Gas Pressure — aftermarket reference specification |
| Shock Absorber System | Monotube (BILSTEIN 24-166621) / Twin-Tube (GH GH-333390); Hosal version To Be Confirmed |
| Shock Absorber Design | Spring-Bearing Telescopic Damper |
| Upper Mount Type | Top Pin |
| Lower Mount Type | Bottom Fork |
| Spring Included | No — bare shock absorber |
| Airmatic Compatibility | Not for Airmatic-equipped vehicles without verified conversion / OE confirmation |
| ADS Compatibility | Not for ADS adaptive damping systems without verified compatibility |
| Extended Length | To Be Confirmed |
| Compressed Length | To Be Confirmed |
| Stroke Length | To Be Confirmed |
| Suspension Application | Verify VIN, RWD / 4MATIC, standard suspension and Airmatic / ADS options |
| Quality Standard | OEM-equivalent quality |
| MOQ | 50 pcs per model |
| Warranty | 1 year or 40,000 km |
| Certification | ISO 9001 |
| Lead Time | 45–60 days |
| Packaging | Neutral packaging; customized packaging subject to MOQ |
| Payment Terms | 30% deposit, 70% before shipment |
| Shipping Method | By sea, air or express |
| Port | Ningbo, China |
| Sample | Available |
| HS Code | 8708.80 |
| Country of Origin | China |
03. DAMPING PERFORMANCE CONTROLLED RESPONSE FOR EVERY ROAD CONDITION
Standard, comfort and heavy-duty damping settings are available according to different vehicle applications and market requirements.
04. MATERIALS & CONSTRUCTION BUILT FROM THE DETAILS UP
Carefully selected materials and precision components provide reliable sealing, stable damping performance and long-term durability.
CHROME-PLATEDPISTONROD
HIGH-STRENGTHSTEELTUBE
HIGH-PERFORMANCEOILSEAL
PRECISIONVALVESYSTEM
LOWFRICTION
STABLESTRUCTURE
LEAKPROTECTION
CONTROLLEDDAMPING
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05. BATCH CONSISTENCY From Approved Sample to Stable Bulk Supply
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SAMPLE CONFIRMATIONProduct dimensions, mounting points, damping requirements and appearance are confirmed before mass production. |
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FIRST ARTICLE INSPECTION The first finished unit is inspected before continuous batch production begins. |
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STANDARDIZED PRODUCTION Confirmed materials, components and production parameters are applied throughout the order. |
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BATCH IDENTIFICATION Product labels, batch codes and inspection records support order identification and repeat-order traceability. |
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COLOR BOX PACKAGING Approved packaging designs are applied consistently, including brand colors, product information and identification labels. |
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BATCH PACKAGING & PALLETIZING Finished color boxes are organized by batch and securely palletized for easier inventory management, handling and transportation. |
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06. PACKAGING & SHIPMENT FROM FACTORY PREPARATION TO CONTAINER LOADING
FREQUENTLY ASKED QUESTIONS
Find answers about shock absorber model matching, MOQ, customization, production, quality control, packaging and warranty.
1. HOW CAN I FIND THE CORRECT SHOCK ABSORBER?
Please provide the OE number, vehicle brand, model, year and installation position. Product photos, drawings or dimensions can also help us confirm the correct item.
2. WHAT IS YOUR MINIMUM ORDER QUANTITY?
Our standard MOQ is 50 pieces per model. Sample and trial order quantities can be discussed according to the specific product.
3. DO YOU SUPPORT OEM AND ODM CUSTOMIZATION?
Yes. We can customize the product logo, laser marking, labels, damping force, product color and packaging according to your market requirements.
4. CAN I ORDER SAMPLES BEFORE A BULK ORDER?
Yes. Samples are available for quality, dimensions and installation verification before bulk production.
5. WHAT IS THE PRODUCTION LEAD TIME?
The regular production lead time is approximately 45–60 days. The exact delivery time depends on the models, order quantity, materials and customization requirements.
6. HOW DO YOU CONTROL PRODUCT QUALITY?
Each shock absorber is inspected for appearance, dimensions, damping force and sealing performance before packaging to ensure stable batch quality.
7. WHAT PACKAGING OPTIONS ARE AVAILABLE?
We provide neutral packaging, protective bags, custom labels, laser marking, custom color boxes and reinforced export cartons.
8. WHAT IS THE PRODUCT WARRANTY?
Our shock absorbers are generally covered for one year or 40,000–50,000 kilometers under normal installation and use. Specific warranty terms depend on the product and order agreement.
