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Results for replacement diesel fuel cap
When searching for a replacement diesel fuel cap, you're looking for a durable, secure, and precisely fitting component that maintains fuel system integrity, prevents fuel evaporation, and ensures compliance with emission standards. The right replacement must match your vehicle’s make, model, and year—especially for diesel engines where pressure regulation and vapor containment are critical. Whether you're replacing a damaged cap on a Nissan, Infiniti, or Scania truck, selecting a high-quality, OEM-compatible fuel cap is essential for long-term performance and safety.
The three available options cover a broad range of applications:
- A universal lockable fuel cap (OEM 1740017, 46746613) suitable for Fiat models, featuring two keys for added security.
- A high-precision cap (OEM 17251-79961) compatible with Nissan, Infiniti, and 350Z models from 2000–2006, made from durable ABS and plastic.
- A heavy-duty cap for Scania trucks, designed for commercial vehicles with interchange numbers 2993923 and 1402004, ensuring reliability under high-pressure conditions.
To ensure optimal performance and safety, follow these steps when selecting a replacement:
All listed caps are brand-new, manufactured in Mainland China, and sold individually. The lightweight design (0.08kg–0.3kg) ensures easy installation, while the universal fitment and interchangeability make them ideal for both personal and fleet maintenance. Choose a cap with a proven track record in real-world use—especially for diesel engines where even minor leaks can affect performance and emissions. For long-term reliability, always replace the entire cap assembly when the seal fails, not just the cap itself.
- Replacement Diesel Fuel Cap
- A functional fuel cap designed to replace a lost, broken, or worn-out original cap on diesel-powered vehicles. It maintains proper pressure in the fuel tank and prevents fuel leakage and contamination.
- OEM Number
- Original Equipment Manufacturer code used to identify exact replacement parts. For example, 17251-79961 or 2993923, ensures compatibility with specific vehicle models.
- Lockable Fuel Cap
- A fuel cap with a locking mechanism to prevent unauthorized access to the fuel tank, commonly found on vehicles requiring enhanced security.
The three available options cover a broad range of applications:
- A universal lockable fuel cap (OEM 1740017, 46746613) suitable for Fiat models, featuring two keys for added security.
- A high-precision cap (OEM 17251-79961) compatible with Nissan, Infiniti, and 350Z models from 2000–2006, made from durable ABS and plastic.
- A heavy-duty cap for Scania trucks, designed for commercial vehicles with interchange numbers 2993923 and 1402004, ensuring reliability under high-pressure conditions.
To ensure optimal performance and safety, follow these steps when selecting a replacement:
- Verify your vehicle’s make, model, and year to confirm compatibility with the fuel cap’s OEM number.
- Check the cap’s material and construction—ABS and reinforced plastic offer durability and resistance to fuel degradation.
- Confirm whether a lockable feature is required for theft prevention, especially on commercial or high-value vehicles.
- Inspect the sealing ring—a worn or missing seal can lead to fuel leaks and check engine light activation.
- Ensure the cap fits securely and clicks into place—a proper seal is crucial for maintaining fuel system pressure.
All listed caps are brand-new, manufactured in Mainland China, and sold individually. The lightweight design (0.08kg–0.3kg) ensures easy installation, while the universal fitment and interchangeability make them ideal for both personal and fleet maintenance. Choose a cap with a proven track record in real-world use—especially for diesel engines where even minor leaks can affect performance and emissions. For long-term reliability, always replace the entire cap assembly when the seal fails, not just the cap itself.
Replacement Diesel Fuel Cap -AliExpress
Replacement Diesel Fuel Cap: Reliable, Secure, and Compatible for Modern Vehicles
When searching for a replacement diesel fuel cap, drivers and vehicle owners need a durable, secure, and precisely fitting solution that maintains fuel system integrity and prevents contamination. The right replacement cap ensures your diesel engine operates efficiently, protects against moisture and debris, and meets OEM specifications for safety and performance. Whether you're replacing a damaged cap on a Nissan, Infiniti, or Scania truck, selecting a high-quality, lockable, and compatible fuel cap is essential for long-term vehicle reliability.
Understanding the Search Intent Behind Replacement Diesel Fuel Cap
The term replacement diesel fuel cap reflects a clear functional need: finding a direct, reliable substitute for a lost, broken, or worn-out fuel cap on a diesel-powered vehicle. This includes both passenger cars and commercial trucks. The search implies a demand for accuracy in fitment, material durability, and security features such as locking mechanisms. Users are not looking for generic caps—they want a product that matches OEM standards, resists corrosion, and prevents fuel evaporation and contamination.
- Fuel Cap (Diesel)
- A sealing cover for the fuel tank filler neck on diesel vehicles, designed to maintain pressure balance, prevent fuel vapor loss, and protect the fuel system from dirt and moisture.
- OEM Equivalent
- A replacement part that matches the original equipment manufacturer’s specifications in size, shape, material, and function, ensuring compatibility with the vehicle’s fuel system.
- Lockable Fuel Cap
- A fuel cap with a locking mechanism that prevents unauthorized access to the fuel tank, commonly used in vehicles where theft prevention is a concern.
Choosing the Right Replacement: Key Considerations
Selecting the correct replacement diesel fuel cap involves more than just matching the vehicle model. You must consider material quality, sealing performance, locking features, and interchangeability with existing parts. A poor-quality cap can lead to fuel leaks, increased emissions, or even engine damage due to contamination.
To avoid common pitfalls, follow these steps:
- Identify your vehicle’s make, model, and year to ensure compatibility with the replacement cap.
- Check the OEM part number (e.g., 17251-79961, 2993923, 1402004) to confirm exact match with your original cap.
- Verify material and construction—ABS plastic is lightweight and corrosion-resistant, ideal for long-term use.
- Confirm whether the cap is lockable if security is a priority, especially for commercial or high-value vehicles.
- Inspect sealing performance—a proper cap should create an airtight seal to maintain fuel system pressure.
Comparing Top Replacement Options
Below is a detailed comparison of three popular replacement diesel fuel caps, based on real product specifications and user-tested performance.
| Feature | Car Fuel Petrol Cap (Fiat) | Fuel Cap for Nissan/Infiniti | Fuel Tank Cover for Scania Truck |
|---|---|---|---|
| Brand | NONE | YITHSWAY | DUTRIEUX |
| Color | ARP01MH | 17251-79961 | White / Black |
| Material | Plastic | ABS + Plastic | Plastic |
| Dimensions (L×W×H) | 8×8×7 cm | 8×8×7 cm | 15×5×5 cm |
| Weight | 0.08 kg | 0.08 kg | 0.300 kg |
| OEM / Interchange Number | 1740017, 46746613 | 17251-79961 / 17251 79961 | 2993923, 1402004, 1481301 |
| Lockable | Yes (with two keys) | No | No |
| Fitment | Fiat (Universal) | Nissan 350Z, Infiniti G35, Sentra, Frontier, Maxima, Pathfinder, Xterra | Scania Trucks (e.g., R400, S730) |
| Package Weight | 0.150 kg | 0.150 kg | 0.300 kg |
Real-World Use Case: Replacing a Lost Fuel Cap on a 2004 Nissan Frontier
Problem: A 2004 Nissan Frontier owner discovers the original diesel fuel cap is missing after a roadside stop. Without a cap, the fuel system is exposed to dust, moisture, and potential theft.
Solution Summary: Replace the original cap with a high-quality, OEM-compatible replacement that matches the original part number and includes a secure locking mechanism.
Step-by-Step Fix:
- Locate the OEM number on the original cap or in the vehicle manual: 17251-79961.
- Search for a cap with this number on AliExpress—ensure the listing specifies compatibility with 2000–2006 Nissan Frontier, Sentra, and Infiniti models.
- Confirm material and features: Choose a cap made of ABS + plastic for durability and resistance to UV and temperature changes.
- Verify lockability: Select a model with a locking mechanism and two keys to prevent fuel theft and unauthorized access.
- Install the new cap by aligning it with the fuel filler neck and turning clockwise until it clicks securely into place.
- Test the seal by checking for any fuel odor or vapor release—ensure the cap holds pressure properly.
Final Recommendations
For diesel vehicle owners, investing in a replacement diesel fuel cap that matches OEM specifications is a simple yet critical maintenance step. The YITHSWAY cap for Nissan/Infiniti models offers excellent compatibility and durability, while the DUTRIEUX cap for Scania trucks is ideal for heavy-duty applications. The lockable Fiat-compatible cap provides added security for vehicles parked in high-risk areas.
Always double-check the OEM number before purchasing. A properly fitted, sealed, and secure fuel cap protects your engine, reduces emissions, and ensures compliance with vehicle safety standards. Choose a cap that matches your vehicle’s exact model and year to avoid performance issues and long-term damage.