Chloe Zhang
Honda ATV enthusiasts have been discussing whether 400EX plastics will fit on a 300EX. Some say that 400EX plastic will not work without major modifications, while others claim that it is possible with some fabrication work, such as cutting and rewelding the seat bushings and modifying the mounting hardware. One user even claims to have seen a 300EX with 400EX plastic fitted, although they are unsure how well it was done. Another user suggests that only 250X/300EX plastic will fit a 300EX properly.
Do 300ex plastics fit on a 400ex?
| Characteristics | Values |
|---|---|
| Fit | It is possible to fit 400ex plastic on a 300ex, but it will require major modifications to the seat bushings and mounting hardware. |
| Cost | The cost of replacing the plastic on a 300ex with 400ex plastic is likely to be expensive, with individual parts costing over $100. |
| Colour | 400ex plastic can be used to change the colour of a 300ex, such as changing it to all red. |
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What You'll Learn
- It is possible to replace 300ex plastics with 400ex plastics, but it will require significant modifications to the seat bushings and mounting hardware
- The 400ex plastics are newer to the market, so finding an aftermarket company selling replacement plastics might be challenging
- Replacing the front assembly of a 300ex with 400ex plastics can be costly, with front fenders priced at $140 each and decals at $40.58 each
- The 400ex a-arms and swing arm can be fitted onto a 300ex, widening the quad more than stock and potentially improving its appearance
- The 400ex front shocks can be installed on a 300ex, but a relocator kit, brake lines, and tierods from the 400ex are required for proper installation
It is possible to replace 300ex plastics with 400ex plastics, but it will require significant modifications to the seat bushings and mounting hardware
In addition to the rewelding, the mounting hardware will also require modifications. This may include the use of a widening kit or a relocator kit, which can be purchased from specialist retailers. The exact modifications required will depend on the specific hardware you are working with and your desired setup, so it is important to carefully plan and measure before making any cuts or welds.
While it is possible to source used 400ex plastics to help reduce costs, finding replacement parts for the 300ex can be challenging due to the age of the model. New OEM plastics for the 300ex are available but tend to be expensive, with front fenders costing around $140 each. It is worth noting that even with these challenges and modifications, the final result may not have the same tight fit and aesthetic appeal as the original 300ex plastics.
If you are considering this modification, it is recommended to seek advice and insights from experienced ATV enthusiasts and mechanics, either online or within your local community. They can provide valuable guidance and help you anticipate any potential challenges or issues that may arise during the process.
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The 400ex plastics are newer to the market, so finding an aftermarket company selling replacement plastics might be challenging
One challenge with finding aftermarket 400ex plastics is that the model is relatively new to the market. As a result, there may be limited options available from third-party manufacturers. This could make it more difficult to find the specific parts you need, especially if you are looking for a direct replacement for the stock plastic parts.
Another option for replacing 400ex plastics is to consider purchasing used parts. Some websites offer used 400ex plastic parts, which can be a more affordable option. However, it is important to carefully inspect used parts to ensure they are in good condition and will fit your ATV properly. It is also worth considering the level of wear and tear that the used parts have experienced, as this can impact their durability and longevity.
Additionally, some companies offer aftermarket graphic kits and customisation options for 400ex plastics. These can be a great way to personalise your ATV and improve its appearance. However, it is important to ensure that any aftermarket modifications or customisations do not void your ATV's warranty. It is always recommended to consult a professional or a mechanic before making any significant modifications to your vehicle.
Overall, while finding aftermarket 400ex plastics may be challenging due to the model's newness to the market, it is not impossible. With some persistence and creativity, you may be able to find the parts you need to replace or customise your 400ex plastics.
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Replacing the front assembly of a 300ex with 400ex plastics can be costly, with front fenders priced at $140 each and decals at $40.58 each
If you're looking to replace the front assembly of your 300ex, you may be considering using 400ex plastics. However, this may not be the best option, as it will likely require significant modifications to fit, and the cost of new 400ex parts can be high.
For example, let's take a look at the cost of replacing the front fenders and decals. New 400ex front fenders can be expensive, and you may need to purchase them from an original equipment manufacturer (OEM). Front fenders for a 300ex are priced at $140 each, and decals are $40.58 each. That's just for the parts themselves, and you may also need to factor in the cost of labour if you're not installing them yourself.
While you may be able to find used 400ex parts at a lower price, it's important to consider the compatibility of the parts. The 400ex is a newer model, and the plastic components may not fit the 300ex without significant modifications. This could involve cutting, drilling, or other adjustments, and even then, a perfect fit is not guaranteed.
Additionally, keep in mind that the 400ex is a newer model, and finding an aftermarket company selling replacement plastics for it may be challenging. So, if you're considering this route, be prepared for a potentially difficult and costly process. It may be more cost-effective to explore other options, such as repairing your existing 300ex plastics or searching for used 300ex parts that are specifically designed for your model.
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The 400ex a-arms and swing arm can be fitted onto a 300ex, widening the quad more than stock and potentially improving its appearance
The 400ex a-arms can be fitted onto a 300ex, widening the quad more than stock. However, this may require some modifications. Some sources suggest that the 400ex swing arm can also be fitted onto a 300ex, but this requires welding the ears on the 250/300 frame for the shock link and using a relocator kit for the front shocks. Additionally, you will need the brake lines and tierods from the 400ex. The 400ex plastics will also fit on a 300ex, but this will require cutting and rewelding the seat bushings to the outside of the frame and making modifications to the mounting hardware.
While it is possible to fit 400ex a-arms and swing arms onto a 300ex, it is important to note that this may not be a straightforward process and may require some fabrication skills and modifications. The result, however, can potentially improve the appearance of the 300ex by widening the quad more than stock.
Some users have reported success in fitting 400ex a-arms onto their 300ex quads, with one user claiming that it widened their quad more than stock. This can be a more cost-effective option compared to buying aftermarket arms. However, another user has cautioned against using 400ex a-arms on a 300ex, stating that it may not work without major modifications.
The 400ex swing arm can also be fitted onto a 300ex, but it is important to note that the 400ex swing arm has a linkage for the rear shock, while the 300ex does not. This means that a weld-on linkage mount will need to be added to the frame, and a custom shock will need to be built specifically for this setup. The swing arm is also wider, which can cause chain alignment issues.
The 400ex plastics can be fitted onto a 300ex, but this will require modifications to the seat bushings and mounting hardware. It is also recommended to use an excellent fabricator who knows how to align the parts properly.
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The 400ex front shocks can be installed on a 300ex, but a relocator kit, brake lines, and tierods from the 400ex are required for proper installation
The 400ex front shocks are a popular upgrade for the 300ex, with many 300ex owners testifying to the benefits of this conversion. However, it is important to note that this modification requires more than just the shocks themselves. To ensure proper installation and functionality, you will also need to source a relocator kit, new brake lines, and tierods designed for the 400ex.
The 400ex shocks will only fit at the front of the 300ex, as the rear shock won't fit. The front shocks will work with the help of a relocation bracket, which can be purchased for around $90. This bracket serves to adjust the angle of the shocks, as the 400ex shocks sit almost straight up and down, which can affect the valving and stroke.
Additionally, the 400ex a-arms will cause the tierods to sit at an angle, which can lead to bumpsteer. This issue can be mitigated by using a relocator kit, which adjusts the angle of the tierods, ensuring they are as close to inline as possible. It is also recommended to use 400ex spindles, as the tie rod mount on the 300ex spindles is significantly lower, contributing to the tierod angle issue.
To summarise, while it is possible to install 400ex front shocks on a 300ex, it is important to be aware of the necessary additional components and adjustments to ensure a successful upgrade. The relocator kit, brake lines, and tierods from the 400ex are crucial to address the geometry differences between the two models and ensure a smooth and stable ride.
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Frequently asked questions
No, 400EX plastic will not work without major modifications, if at all, on a 300EX.
Only the plastic from a 250X/300EX will fit properly.
The 400EX A-arms will fit on a 300EX. The swingarm can also be modified to fit.
You can get either OEM, Fullbore's aftermarket set, or race cut or stock cut Maiers.
Yes, some parts may require major modifications to fit. For example, the swingarm is wider on the 400EX, so you would need to weld on a linkage mount and custom-build a shock.
