Features & Benefits
- Made of aluminum
- Not lockable
- Comes with thermal relief and pressure relief
- Compatible with Freightliner and Kenworth models
- Safety chain and crossbar included
- 2-1/4 inches across threads cap and filler neck
0 ratings
Item #:
19429389
Velvac 600186 Fuel Tank Cap Female, Vented, 3 Nominal Size, 11 12 Threads Per Inch
Item #:
19429389
0 ratings
Write a review
Out of stock
Imported from USA store
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Aluminum non-locking fuel cap with thermal relief and pressure relief, 2-1/4 inches across threads cap and filler neck, compatible with Freightliner and Kenworth models.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Vented Design
The vented design allows for optimal fuel flow and prevents vacuum build-up, ensuring efficient fueling and reducing risks of spillage or fuel evaporation.
Universal Fit
With a 5.5-inch thread size, this fuel cap is designed for wide compatibility, making it suitable for various vehicles and ensuring a reliable seal for your fuel tank.
Non-Lock Mechanism
The non-locking feature provides convenient access for quick refueling, making it ideal for those who need easy and fast operation without worrying about losing the cap.
Product Details
| Brand Name | Velvac |
| Model Number | 503 |
| Manufacturer Part Number | 600186 |
| OEM Equivalent Part Number | 600186 |
| Manufacturer | VELVAC |
| UPC | 728974036787 |
| Global Trade Identification Number | 00728974036787 |
| Included Components | Fuel Cap |
| Unit Count | 1.0 Count |
| Item Type Name | Velvac 600186 Fuel Cap, Vented, Nonlock, 5.5 in Thread |
| Color | natural |
| Exterior Finish | Machined |
| Style Name | Chain,Thermal,Safety |
| Item Dimensions | 10 x 7 x 2 inches (25.4 x 17.8 x 5.1 cm) |
| Item Weight | 8.96 ounces (254.02 grams) |
| Automotive Fit Type | Vehicle Specific Fit |
| Closure Type | Screw-In |
| Material Type | Aluminum |
| Brand | Velvac |
| Material | Aluminum |
| Item dimensions L x W x H | 10 x 7 x 2 inches (25.4 x 17.8 x 5.1 cm) |
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?
-
Fleet Vehicles
Ideal for fleet managers needing durable, vented fuel caps that allow for quick refueling in high-use vehicles.
-
Maintenance Shops
Suitable for automotive shops requiring reliable fuel caps for a variety of vehicles needing quick replacements.
-
DIY Enthusiasts
Great for home mechanics looking for a nonlock vented fuel cap option for convenience and ease of use.
-
High-Security Needs
Not suitable for users requiring a lockable cap to prevent unauthorized access to fuel tanks.
Product Description
Velvac 600186 Fuel Tank Cap Female, Vented, 3 Nominal Size, 11 12 Threads Per Inch
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the purpose of the Velvac 600186 Fuel Cap?
Answer: The Velvac 600186 Fuel Cap is designed to seal the fuel tank of vehicles, ensuring that the fuel remains secure and preventing contaminants from entering the tank. It features a vented design that allows for proper air flow, minimizing the risk of pressure build-up or vacuum formation in the tank. This is crucial for optimal fuel system performance, especially in diverse driving conditions. Proper usage brings peace of mind knowing that fuel efficiency is maximized and potential engine damage from improper air flow is avoided. -
Question:
Is the Velvac 600186 Fuel Cap compatible with all vehicles?
Answer: The Velvac 600186 Fuel Cap is specifically designed to fit vehicles with a 5.5-inch threaded opening. Compatibility depends on the make and model of the vehicle; it's ideal for medium and heavy-duty trucks and other specialized vehicles. To ensure a suitable fit, it's recommended to check your vehicle’s specifications against the product dimensions. Using the correct cap helps maintain fuel integrity and can improve performance, making it essential to verify compatibility before purchasing. -
Question:
How does a vented fuel cap benefit my vehicle?
Answer: A vented fuel cap allows air to enter the fuel tank, which prevents vacuum formation as fuel is consumed. This design minimizes the risk of fuel foaming and enhances fuel delivery to the engine. Moreover, it helps in maintaining balance in the fuel vapor pressure, which can improve fuel efficiency. For instance, during long drives, a vented cap can provide better performance by ensuring a steady fuel supply, making it ideal for both commercial and recreational vehicles. -
Question:
Are there any maintenance tips for the Velvac 600186 Fuel Cap?
Answer: To maintain the Velvac 600186 Fuel Cap, regularly inspect it for cracks, wear, or damage which could compromise its seal. Clean the threads and the cap surface to remove any debris or contaminant buildup that could interfere with proper sealing. This proactive approach helps in maintaining the cap's effectiveness. For optimal function, replace it if you notice any signs of wear or if it's not fitting snugly to prevent fuel loss or contamination, ensuring your vehicle operates at its best. -
Question:
Can I use Velvac 600186 Fuel Cap with Diesel fuel?
Answer: Yes, the Velvac 600186 Fuel Cap is suitable for use with diesel fuel. Its vented design is beneficial for diesel applications where fuel tank breathing is necessary, reducing the chance of pressure buildup that could lead to fuel delivery issues. When using it in a diesel vehicle, ensure that it is properly sealed to prevent leaks and fumes. This cap's robust construction is ideal for handling the unique properties of diesel fuel, providing reliable performance in both transport and construction vehicles. -
Question:
What materials are used in the Velvac 600186 Fuel Cap?
Answer: The Velvac 600186 Fuel Cap is constructed from high-quality, durable materials designed to withstand harsh environmental conditions. The materials ensure resistance against corrosion and wear, extending the lifespan of the cap. This resilience makes it suitable for heavy-duty applications, where performance in extreme weather or heavy use is critical. By choosing a fuel cap made from quality materials, vehicle owners can trust that they're investing in a product that will maintain its performance under challenging conditions. -
Question:
Is the Velvac 600186 Fuel Cap easy to install?
Answer: Installation of the Velvac 600186 Fuel Cap is straightforward, as it simply screws onto the fuel tank's threaded opening. It typically requires no special tools or additional hardware, making it accessible for most vehicle owners. Ensure that the threads are clean for a snug fit to avoid leaks. If replacing an old cap, a simple check can confirm that the new cap aligns correctly, ensuring a secure seal. Proper installation will enhance fuel efficiency and engine performance, making it a hassle-free process. -
Question:
Where can I buy Velvac 600186 Fuel Cap Vented, Nonlock, 5.5 in Thread?
Answer: You can buy the Velvac 600186 Fuel Cap Vented, Nonlock, 5.5 in Thread at Ubuy in Bhutan. Ubuy offers a seamless shopping experience, providing access to a variety of automotive products, including this specific fuel cap. Their platform is known for reliable service and diverse options to meet your needs, ensuring you find just the right part for your vehicle. -
Question:
What are the signs that my fuel cap needs replacement?
Answer: Signs that your fuel cap may need replacement include fuel odors, a loose or wobbly cap fit, or check engine warnings related to the fuel system. If you notice fuel leaking or difficulty in filling the tank, these may also indicate issues with the cap. Regular inspection can aid in identifying wear and tear. By addressing these signs promptly, you can avoid problems such as decreased fuel efficiency or engine damage, ensuring your vehicle runs smoothly. -
Question:
What is the difference between a vented and a non-vented fuel cap?
Answer: A vented fuel cap allows air to enter the tank while preventing fuel spills and vapor escape, which aids in maintaining proper fuel delivery and pressure balance. In contrast, a non-vented cap completely seals the fuel tank, which can lead to vacuum issues over time. Understanding this difference helps in selecting the right cap based on your vehicle's requirements. Vented caps are often preferred for heavy-duty applications where fuel vapor pressure management is crucial for performance.
Velvac 503 Editorial Review
This product is a replacement fuel cap for Kenworth trucks with part number k071-398. However, one customer gave it a two-star review stating that the cap leaked and let fuel escape from the side, which they were not satisfied with Considering the price they paid. The replacement fuel cap for Kenworth trucks is a convenient product that can save drivers from having to purchase an entire new tank if their fuel cap is lost or damaged. However, it is important to note that one customer experienced leakage with this product. It may be worth checking customer reviews or reaching out to the seller to ensure this specific product is high-quality and effective at preventing leakage.
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Convenient replacement for a lost or damaged fuel cap
- Avoids the need to purchase an entire new tank
Cons
- Risk of leakage, as reported by one customer review
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
Currently unavailable.
We don't know when or if this item will be back in stock.
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.