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- Mazda NB38-42-250 Fuel Tank Cap
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Item #:
212209069
Mazda NB38-42-250 Fuel Tank Cap
85% of respondents would recommend this to a friend
Item #:
212209069
XCD 137
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What Stands Out
Optimal Sealing
The Mazda NB38-42-250 cap ensures a tight seal, preventing fuel evaporation and enhancing overall efficiency by maintaining pressure within the fuel system.
Durable Design
Constructed with high-quality materials, this fuel tank cap offers exceptional durability, resisting wear and tear from environmental factors and ensuring long-term functionality.
Easy Installation
Designed for straightforward installation, the Mazda NB38-42-250 cap allows for quick replacement, making it user-friendly and convenient for vehicle maintenance.
Product Details
| Brand Name | Mazda |
| Model Number | NB38-42-250 |
| Manufacturer Part Number | NB38-42-250 |
| Number of Items | 1 |
| OEM Equivalent Part Number | NB38-42-250 |
| Manufacturer | Mazda |
| Unit Count | 1 Count |
| Included Components | Fuel Tank Cap |
| Item Type Name | Fuel Tank Cap |
| Color | Black |
| Exterior Finish | Machined |
| Style Name | Modern |
| Item Dimensions | 4.72 x 4.33 x 4 inches (12 x 11 x 10.2 cm) |
| Compatible with Vehicle Type | Car |
| Automotive Fit Type | Vehicle Specific Fit |
| Closure Type | Twist-On |
| Brand | Mazda |
| Item dimensions L x W x H | 4.72 x 4.33 x 4 inches (12 x 11 x 10.2 cm) |
| Vehicle Service Type | Car |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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Mazda Owners
Ideal for Mazda vehicle owners needing a reliable replacement fuel tank cap to prevent fuel leakage.
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Vehicle Maintenance
Perfect for car enthusiasts performing routine maintenance, ensuring optimal fuel performance and engine longevity.
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Safety Conscious
Beneficial for users prioritizing safety by replacing worn caps that may lead to hazardous fuel spills.
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Non-Mazda Models
Not suitable for vehicles outside the Mazda range, as compatibility is limited to specific models.
Product Description
Mazda NB38-42-250 Fuel Tank Cap
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the purpose of the Mazda NB38-42-250 Fuel Tank Cap?
Answer: The Mazda NB38-42-250 Fuel Tank Cap serves a vital role in maintaining the integrity of your vehicle's fuel system. It prevents fuel from evaporating and offers a seal to keep dirt and moisture out, ensuring that the fuel tank remains pressurized. A secure cap helps to promote optimal fuel efficiency, which can lead to better performance and lower emissions. -
Question:
How to know if the Mazda NB38-42-250 Fuel Tank Cap needs replacement?
Answer: You may need to replace the Mazda NB38-42-250 Fuel Tank Cap if you notice a check engine light, a smell of gasoline, or if the cap is visibly damaged or cracked. Additionally, if the cap does not click when closed or appears loose, it's essential to replace it to ensure that your fuel system operates correctly and safely. -
Question:
Will the Mazda NB38-42-250 Fuel Tank Cap fit other vehicle models?
Answer: The Mazda NB38-42-250 Fuel Tank Cap is specifically designed for certain Mazda models, primarily within the manufacturer’s specific specifications for fit and function. While it may physically fit on another vehicle, it's crucial to use parts that meet the original specifications to avoid operational issues and maintain the vehicle's performance. -
Question:
What materials are used in the Mazda NB38-42-250 Fuel Tank Cap?
Answer: The Mazda NB38-42-250 Fuel Tank Cap is typically made from durable plastic and rubber materials. These materials are chosen for their resistance to fuel and environmental conditions, ensuring long-lasting performance. The cap's gasket is also designed to provide a tight seal to prevent leaks, making it an essential component for effective fuel system management. -
Question:
How do I properly install the Mazda NB38-42-250 Fuel Tank Cap?
Answer: Installation of the Mazda NB38-42-250 Fuel Tank Cap is straightforward. Align the cap with the fuel tank opening and twist it clockwise until it clicks securely into place. Ensuring a tight fit is critical for maintaining proper pressure in the fuel system. Regular checks should be performed to ensure the cap is on tightly to avoid potential fuel leaks or emissions issues. -
Question:
Can a faulty fuel tank cap affect vehicle performance?
Answer: Yes, a faulty fuel tank cap can significantly affect vehicle performance. An unsealed cap may lead to pressure loss in the fuel system, which can trigger the check engine light and cause the vehicle to run inefficiently. Moreover, it can lead to increased fuel evaporation, which not only impacts your gas mileage but can also harm the environment. -
Question:
Where is the fuel tank cap located on a Mazda vehicle?
Answer: On most Mazda vehicles, including those compatible with the NB38-42-250 Fuel Tank Cap, the fuel tank cap is typically located on the driver’s side of the vehicle. It is usually a twist-off cap that is easily accessible when refueling. Being aware of its location can help you quickly identify any issues with the cap during routine checks or fueling. -
Question:
What are the signs of a defective fuel tank cap?
Answer: Signs of a defective fuel tank cap include a persistent check engine light, an unusual smell of gasoline, and visible wear such as cracks or broken parts. If you notice that fuel consumption has increased or the cap does not fit securely, these may be indicators of failure. Addressing these issues promptly can help maintain vehicle performance and safety. -
Question:
Can I use universal fuel caps instead of the Mazda NB38-42-250?
Answer: While universal fuel caps may appear to fit, it's advisable to use the specific Mazda NB38-42-250 Fuel Tank Cap for optimal performance. Universal caps may not provide the same level of sealing, which can result in leaks or emission problems. Authentic parts ensure compatibility and functionality, aligning with your vehicle's design and engineering. -
Question:
Can I buy the Mazda NB38-42-250 Fuel Tank Cap in Anguilla?
Answer: Yes, you can buy the Mazda NB38-42-250 Fuel Tank Cap in Anguilla. For a hassle-free shopping experience and assurance of quality, it is recommended to purchase this part from Ubuy, which specializes in automotive parts and accessories. Ubuy offers a wide selection of authentic products to meet your vehicle needs.
Mazda Fuel Tank Caps NB38-42-250 Editorial Review
Mazda NB38-42-250 Fuel Tank Cap is an ideal solution for many Miata models, providing a reliable fit and performance. Customers have attested that this cap fits perfectly on various models, including the 1994 MX-5 Miata and the 1997 Miata, eliminating issues encountered with other taller caps that prevent the fuel cover from closing properly. As an OEM Mazda product, it is designed to do exactly what it’s meant to, ensuring peace of mind while driving. Many have reported resolving engine codes simply by replacing with this cap, making it a smart and economical fix for enthusiasts and everyday users alike.
Customer Reviews & Ratings
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Pros
- Perfect fit for 1994 to 1997 Miata models
- OEM design ensures reliability and compatibility
- Easy twist-on closure for convenience
- Helps to eliminate engine codes effectively
- Durable machined exterior finish
Cons
- Minor issue of fitment with some aftermarket caps
Platform Trust & Buyer Confidence
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11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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