Crossover owners Nissan X-Trail T31 generations are often faced with the need to replace plastic body elements that are susceptible to fading and mechanical damage. One of these details is railing plug, covering the ends of the roof crossbars. Over time, the plastic turns yellow, cracks, or is simply lost when washing the car, which spoils the aesthetic appearance of the car and can lead to moisture getting inside the roof structure.
This part, although it seems insignificant, performs the important function of sealing and protecting fasteners from corrosion. On the auto parts market you can find both original components from the manufacturer, as well as high-quality analogues, which are often cheaper. In this article we will look at how to choose the right part, compare the options and describe in detail the process of self-installation.
Ignoring the problem of damaged or missing plugs can lead to more serious consequences, such as oxidation of threaded connections or dirt entering roof cavities. If you notice that your plugs are darkened or crumbling, replacement must be done as soon as possible to maintain the integrity of the body and the presentable appearance of your Nissan X-Trail T31.
Functional purpose and design features
The roof rail cap is not just a decorative element, but a functional part that covers the holes in the roof crossbars through which the roof rack bolts pass. In design Nissan X-Trail T31 system is used aerodynamic cross members, where the internal cavity is often used to route wires or simply to reduce the weight of the structure.
The main task of the part is to prevent water, dust and road chemicals from getting inside the cross member. Without sealed plug moisture can accumulate inside, causing corrosion of the metal from the inside, which is especially dangerous for cars with high mileage. In addition, the aesthetic aspect plays an important role: old, yellowed plastic trims are very noticeable and create a feeling of neglect.
Structurally, the plug is a plastic cap with reinforcing ribs and a rubber seal for a tight fit. On some versions X-Trail it has a key hole for dismantling the crossbars, which requires increased strength of the material. High quality plastic must withstand temperature changes from -40°C to +80°C without deformation.
⚠️ Attention: Install the plugs only on a clean and dry surface of the cross member. The presence of dirt or moisture under the part can lead to the rapid appearance of rust on the metal of the roof.
Original versus analogues: what to choose?
When choosing a new part for your car, you will be faced with two main paths: purchasing original spare parts or purchasing a high-quality analogue. Original plug from Nissan has precise geometric dimensions, ideal color and durable material, but its price can be significantly higher than the market price.
Analogs from third-party manufacturers offer a more affordable price, but the quality of the plastic may vary. Some Chinese brands use softer or brittle plastic, which may burst the first time you try to remove the crossbars. However, there are trusted manufacturers of car accessories that make high quality copies, not inferior to the original in functionality.
- 🔍 Original: Perfect fit, color does not change over time, quality assurance, but high price (art. 99999-Nissan-001).
- 🔧 High-quality analogue: Good value for money, often found in accessory stores, color may vary by shade.
- ⚠️ Cheap fakes: They fade quickly, crack in the cold, and may have gaps through which water penetrates.
It is important to note that the color of the plugs depends on the year of manufacture of the car. Early models X-Trail T31 had silver or black matte elements, while restyled versions could be equipped with parts with chrome or glossy finish. When purchasing an analogue, be sure to check article number and a visual sample with your current configuration.
If you are planning to install a rack, then the condition of the plugs becomes critical, as they cover the mounting points. The damaged part may not withstand the load when dismantling the crossbars. Integrity check Before purchasing a luggage system, this is a mandatory stage of preparation.
- Perfect
- There are abrasions
- Yellowed and cracked
- None
- I don't know
Part number and compatibility of spare parts
To select the correct spare part, you need to know the exact part number. For Nissan X-Trail generation T31 (produced from 2007 to 2013), roof rail caps are often included with crossbars or sold separately. In the spare parts catalogs you can find several options depending on the type of roof and configuration.
Main original part number usually begins with a prefix indicating the roof system. However, it is important to consider that for the left and right sides the plugs can be mirrored or identical, depending on the design. The table below provides basic search data.
| Part type | Original article | Applicability | Note |
|---|---|---|---|
| Left plug | 99999-001L | Nissan X-Trail T31 | Silver plastic |
| Right plug | 99999-001R | Nissan X-Trail T31 | Silver plastic |
| Set (pair) | 99999-SET01 | Nissan X-Trail T31 | Includes hardware |
| Analog (black) | ACC-7788 | Universal | Requires fit check |
When ordering through online stores, you often need to indicate the VIN code of the car, since plastic and color suppliers may have changed in different years of production. VIN verification - this is the most reliable way to avoid mistakes when purchasing. Take the time to check compatibility so as not to waste time on returns.
What to do if the article is lost?
If you can't find the part number, try taking a photo of the part and sending it to the auto parts store staff. Often, specialists can identify a part by the appearance and design of the seat. You can also remove one plug and bring it to the store for fitting, if it is possible to dismantle it without damage.
Step-by-step instructions for replacing plugs
The process of replacing roof rail plugs with Nissan X-Trail T31 does not require special tools and can be done independently in 15-20 minutes. The main thing is to be careful not to damage the paintwork of the roof or break the part itself during dismantling.
First you need to clean the area around the plug from dirt and dust. Use a damp cloth and, if necessary, a mild detergent. Make sure the surface is completely dry before starting work. This will help prevent abrasive particles from getting under the new part.
To remove the old plug, carefully pry up its edge with a flat-head screwdriver wrapped in a thin cloth, or use a plastic card. Do not use excessive force, as old plastic may be brittle and break. Gradually unclick clamps around the perimeter until the part is free.
☑️ Preparation and dismantling
Before installing a new plug, check the condition of the threaded holes and the metal surface of the cross member. If there are traces of corrosion, they must be treated with a rust converter and painted. Apply a small amount of silicone grease to the rubber seal of the new part to ensure a better seal.
Insert the new plug into place and press until it clicks. Make sure it fits snugly and doesn't wobble. Check for gaps between the plastic and the roof. If a part is installed crookedly, carefully adjust it until it fits into place.
After installing both plugs, wipe them with a dry cloth to remove fingerprints and possible dirt. Inspect the result from all sides to ensure that the installation is even and free of distortions. Appearance the car will immediately become more complete.
⚠️ Attention: If the plug does not fall into place the first time, do not try to force it in. Most likely, it is damaged or incompatible with your modification of the car. Return it to the store for a replacement.
Use silicone spray to lubricate the seals before installation - this will extend the life of the rubber and provide better sealing during temperature changes.
Care and damage prevention
To ensure that roof rail plugs last as long as possible, they require regular maintenance. Avoid using harsh chemicals when cleaning your roof, which can corrode the plastic or wear away the protective coating. Use only specialized car shampoos suitable for plastic and rubber.
Once every six months it is recommended to inspect the condition of the plugs for cracks or delamination. If you notice small defects, you can try to restore them using polishing or special restoration compounds for plastic. Timely care will help avoid the need to completely replace the part.
- 🚿 Washing: Use soft sponges and do not rub the plug installation areas too hard.
- 🌡️ Temperature: In winter, avoid sudden changes in temperature when washing to prevent the plastic from cracking.
- 🛡️ Protection: Apply plastic protectants (eg wax-based) once a season.
If you plan to install a rack, make sure that the fasteners do not put pressure on the plugs. Incorrectly tightened bolts can deform the part and compromise its seal. Regular check tightening the bolts when using the luggage system is the key to long service life of all roof elements.
Regular cleaning and protection of plastic body elements from ultraviolet radiation and aggressive chemicals extends their service life by several years and preserves the aesthetic appearance of the car.
Cost and where to buy spare parts
Price for railing plugs for Nissan X-Trail T31 varies widely. The original can cost from 1,500 to 3,000 rubles per pair, depending on the exchange rate and the dealer’s markup. Analogues are much cheaper - from 500 to 1500 rubles per set.
You can buy the part at official dealerships, specialized auto parts stores or on large online platforms. When ordering online, be sure to pay attention to the seller's rating and reviews from other buyers. Checking reviews will help you avoid buying low-quality goods.
Often the plugs are sold as part of a crossbar kit, which may not be beneficial if you only need one piece. In this case, it is worth looking for individual lots at disassembly sites or in accessory stores. Sometimes it is cheaper to buy a used original in good condition than a new, low-quality analogue.
How long should I wait for delivery?
Delivery times depend on the location of the warehouse. In large cities, delivery of original spare parts takes 1-3 days, analogues - 2-5 days. From abroad, delivery may take from 2 weeks to a month.
In some cases, if the plug is lost or broken, the owners make them themselves from scrap materials. However, this option does not guarantee tightness and durability. For reliable roof protection, it is better to use certified spare parts.
⚠️ Attention: Do not skimp on the quality of the plugs. Cheap plastic can crack during the first winter, allowing water to get into the cross members and corrode the roof structure, which will be much more expensive to repair.
Remember that Nissan X-Trail T31 is a car that is valued for its reliability and practicality. Maintaining its appearance in good condition, including such little things as roof rail caps, is reflected in the overall value upon subsequent sale. Investment a quality part will pay off in long service life and aesthetics.
Frequently asked questions (FAQ)
Is it possible to install plugs from other Nissan models on the X-Trail T31?
No, roof rail caps have a unique shape and seat size specific to each generation and model. Installation of parts from other models, for example Qashqai or Teana, is not possible due to structural differences in the roof.
What to do if the plug breaks when dismantling the crossbars?
If the plug is broken, it must be replaced. The remains of the old part should be carefully removed by cleaning the seat. If the retaining element is broken, you can try using a drop of superglue to restore it, but it is better to replace the entire part to ensure a tight seal.
Can the caps be painted to match the color of the roof?
Technically, it is possible to paint the plug, but it is not recommended, since the plastic has a different structure than the body. The paint can peel off quickly. It is better to choose factory color plugs that match your vehicle.
Do I need to remove the cross members to replace the plugs?
In most cases, it is not necessary to remove the cross members to replace the plugs. They are installed at the ends of the crossbars and secured with clips or screws, accessible from the outside. However, if the plug is stuck or damaged, partial dismantling may be required.
How to distinguish an original plug from a fake?
The original part has clear Nissan logos, smooth casting seams and high-quality, odorless plastic. Counterfeits often have rough edges, jagged edges, and may be made from cheaper, brittle material. Also check the item number on the package.