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Item #:
200854724
Stant 21591 Fuel Cap
84% of respondents would recommend this to a friend
Item #:
200854724
HKD 226
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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In stock
Imported from USA store
QTY:
Order now and get it around Friday, September 18
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Replacing an old, leaky or missing gas cap can save as much as a gallon of gas every 15 days and can pay for itself in less than three months.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Durable Design
Constructed from high-quality materials, the Stant 21591 Fuel Cap ensures long-lasting performance and resistance to environmental wear, providing reliable sealing and fuel system integrity over time.
Universal Fit
This fuel cap is designed to fit a wide range of vehicles, ensuring compatibility and convenience. It eliminates the hassle of searching for vehicle-specific caps, saving time for the user.
Easy Installation
The Stant 21591 Fuel Cap features a user-friendly design that allows for quick and easy installation. Most users can replace it without special tools, enhancing overall user satisfaction and convenience.
Product Details
| Brand Name | Stant |
| Model Number | 21591 |
| Manufacturer Part Number | 21591 |
| Manufacturer | Stant |
| UPC | 033342062610 |
| Global Trade Identification Number | 00033342062610 |
| Color | Black |
| Exterior Finish | Chrome |
| Style Name | Safety |
| Item Dimensions | 9.8 x 5.7 x 2.2 inches (24.9 x 14.5 x 5.6 cm) |
| Compatible with Vehicle Type | Car |
| Closure Type | Twist-On |
| Material Type | Metal |
| Brand | Stant |
| Material | Metal |
| Item dimensions L x W x H | 9.8 x 5.7 x 2.2 inches (24.9 x 14.5 x 5.6 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?
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Fuel Efficiency Seekers
Users looking to improve fuel efficiency will benefit from this reliable and leak-proof fuel cap.
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DIY Vehicle Owners
Car owners who perform maintenance themselves will appreciate the straightforward installation of this fuel cap.
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Older Vehicle Owners
Owners of older models may find this cap vital to preventing fuel evaporation and ensuring optimal performance.
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Heavy Vehicle Users
Owners of trucks or large vehicles may find this cap inadequate for their higher fuel demands and capacities.
Product Description
Stant 21591 Fuel Cap
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
How much gasoline can I save by replacing my gas cap?
Answer: You can save up to a gallon of gas every 15 days. -
Question:
How quickly will the new gas cap pay for itself?
Answer: The new gas cap can pay for itself in less than three months. -
Question:
Does this gas cap meet safety standards?
Answer: Yes, it meets or exceeds all original equipment performance and safety standards.
Stant Fuel Tank Caps 21591 Editorial Review
The Stant 21591 Fuel Cap is designed specifically for diesel vehicles and offers enhanced security features that many customers appreciate. Users express satisfaction with its ability to deter potential theft, which is particularly important for diesel trucks and RVs that carry significant amounts of fuel. The locking mechanism aimed at providing a safeguard is highlighted as a vital feature, especially with fuel prices averaging around $5.00 per gallon. However, some customers have noted issues with the product's reliability. A few users reported that one of the caps malfunctioned after its initial use, locking up and becoming unusable, which raises concerns about quality control. Furthermore, there have been remarks about the product arriving in an old and dirty package, although the caps themselves can be tested upon opening. Despite these concerns, many users found the Stant fuel caps easy to install and valued the keyed-alike feature which allowed for uniform use across both caps. This is a significant advantage for those looking to replace outdated non-locking caps. Overall, the Stant 21591 Fuel Cap is a solid choice for individuals seeking secure fuel caps for their diesel vehicles, although potential buyers should remain cautious of the quality and ensure that the caps are locked properly to maximize their security features. **
Customer Reviews & Ratings
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Pros
- Enhanced security with twin locking mechanism.
- Ideal for diesel vehicles with significant fuel value.
- Keyed alike feature for convenience.
- Easy installation for replacing old caps.
Cons
- Some users received the product in poor condition (old/damaged packaging).
Platform Trust & Buyer Confidence
FZ
F Zhang
Verified buyer
“Good product, and smooth delivery!”
18-Jul-26 · via Trustpilot
RD
Roxy
Verified buyer
“Great products and services”
17 April 2026 · via Trustpilot
KD
Khushi
Verified buyer
“Ubuy Hong Kong is a game-changer. I was looking for a specific American brand that doesn't ship to Asia, and Ubuy had it in stock. The selection of global products is incredible. It saves me the hassle of using freight forwarders or asking friends to bring items over. The process was seamless from checkout to delivery”
6 July 2026 · via Trustpilot
KM
kritika
Verified buyer
“I?m always nervous buying electronics and skincare online, but Ubuy Hong Kong delivered exactly what I ordered and it was 100% genuine. It?s refreshing to find a platform that you can actually trust with premium brands. Will definitely be a returning customer.”
3 July 2026 · via Trustpilot
S
Sam
Verified buyer
“Great product, good packing, the goods arrived quickly and well protected.”
6 June 2026 · via Trustpilot
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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.
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HKD 226
Order now and get it around Friday, September 18
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.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Save up to a gallon of gas every 15 days.
- Pay for itself in under three months.
- Meets or exceeds OEM performance and safety standards.
- Improves fuel economy and reduces emissions.
- Prevents dangerous gasoline vapors around your vehicle.
- OE style construction ensures a perfect fit.
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