How to Order the Correct Vehicle Gas Strut: A Comprehensive Guide
Gas struts, also known as gas springs or lift supports, are ubiquitous in modern vehicles, providing assisted movement for bonnets (hoods), tailgates (boots), doors, and even seats. While seemingly simple components, selecting the correct replacement gas strut is crucial for safety, functionality, and longevity. A wrongly chosen strut can lead to poor performance, damage to vehicle components, or even injury. This guide provides a detailed walkthrough of how to accurately identify and order the correct gas strut for your vehicle.
1. Understanding Gas Strut Specifications:
Gas struts are not one-size-fits-all. They are precisely engineered to match the weight and movement requirements of the specific application within your vehicle. Several key specifications determine the correct strut:
- Length: This is the overall extended length of the strut. Incorrect length will prevent proper installation or cause the strut to be excessively compressed or extended, leading to premature failure.
- Stroke: This is the distance the strut extends from its fully compressed state to its fully extended state. The stroke must be sufficient to allow the component (bonnet, tailgate, etc.) to open fully without excessive force or binding.
- Force (Newtons): This is the measure of the pushing force the strut exerts at its fully extended position. The force rating is critical; too little force will result in a heavy, sluggish movement, while too much force can damage the mechanism or cause injury.
- Mounting Type: Gas struts have various mounting types, including ball studs, clevis pins, and threaded studs. The mounting type must precisely match the existing mounting points on your vehicle.
- Extended and Compressed Lengths: These dimensions, often specified alongside the stroke, are essential for accurate fitting. They ensure the strut will fit within the available space when both open and closed.
2. Locating the OEM Part Number:
The most reliable method for identifying the correct gas strut is to locate the Original Equipment Manufacturer (OEM) part number. This number uniquely identifies the strut and ensures compatibility with your vehicle.
- Where to Find the Part Number: The OEM part number is usually stamped or printed directly onto the body of the gas strut itself. It's often located on the thicker, cylindrical section of the strut.
- Cleaning the Strut: If the part number is difficult to read due to dirt or grime, carefully clean the strut's surface with a suitable solvent or degreaser.
- Multiple Struts: Many vehicles use multiple gas struts for a single component (e.g., two struts for a tailgate). Ensure you note the part number for each strut you intend to replace.
- Photography: Take clear, well-lit photographs of the part number(s) for reference.
3. Using the OEM Part Number to Order:
Once you have accurately identified the OEM part number(s), you can use this information to order the correct replacement gas struts:
- Online Retailers: Many online retailers specialise in automotive parts, including gas struts. Use the OEM part number in their search function to find the correct replacement.
- Local Parts Suppliers: Your local auto parts store or garage can also assist in sourcing replacement gas struts. Providing them with the OEM part number will significantly speed up the process.
- Vehicle Manufacturer: As a last resort, you can contact your vehicle's manufacturer directly.
4. What to Do if the OEM Part Number is Unreadable or Missing:
If you are unable to locate or decipher the OEM part number, several alternative methods can help you identify the correct gas strut:
- Measure the Strut: Carefully measure the extended length, compressed length, and stroke of the existing strut. Note the mounting type and take photographs.
- Vehicle Identification Number (VIN): Your vehicle's VIN is a unique identifier. Providing this information to a parts supplier can help.
- Vehicle Make, Model, and Year: This information, along with the component requiring the strut, can be used to search for compatible struts.
- Visual Comparison: If you can find a photograph or diagram of the gas strut for your vehicle model online, this can help.
- Contact a Specialist: If all else fails, contact a specialist gas strut supplier or automotive mechanic.
5. Understanding the Variety of Gas Struts:
The wide variety of gas struts available reflects the diverse applications within vehicles. Different vehicles, even those of the same make and model, may use different struts due to variations in manufacturing, component weight, and design changes over the years. This is why relying on the OEM part number is the most reliable approach.
6. Importance of Correct Gas Strut Selection:
Using the incorrect gas strut can have several negative consequences:
- Poor Performance: The tailgate or bonnet may not lift smoothly or fully, requiring manual assistance.
- Damage to Components: Excessive force from an overly strong strut can damage hinges, catches, or other related parts.
- Safety Hazards: A malfunctioning strut can cause the tailgate or bonnet to fall unexpectedly, potentially causing injury.
- Voiding Warranties: Using non-OEM parts might void any existing warranties on your vehicle.
7. Installation:
Once you have received the correct gas struts, proper installation is crucial. While many individuals can install gas struts themselves, it's always advisable to consult your vehicle's owner's manual for specific instructions and safety precautions. If you are unsure about any aspect of the installation process, seek professional help from a qualified mechanic.
Conclusion:
Ordering the correct vehicle gas strut requires careful attention to detail. Using the OEM part number is the most reliable method to ensure compatibility and optimal performance. However, if this is not possible, accurate measurements, photographs, and consultation with a specialist can help you identify the correct replacement. Remember that selecting and installing the correct gas strut is crucial for safety, functionality, and the longevity of your vehicle's components. Never compromise on quality or safety when replacing these essential parts.
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