Features & Benefits
- Part Number: 21712-79900
- Fits for Infiniti and Nissan models
- Compatible with several years of model variations
- Package Includes: 1* Radiator Reservoir Cap
- High-quality replacement part
- Easy to install
- Home Page /
- Automotive /
- Automotive Replacement Parts /
- Engine Cooling & Climate Control /
- Coolant Recovery Kits /
- AUTOKAY Coolant Overflow Reservoir Tank Cap R...
0 ratings
AUTOKAY Coolant Overflow Reservoir Tank Cap Radiator Reservoir Cap for Nissan Infiniti 21712-79900 - Yellow
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
Radiator Reservoir Cap Replace Part Number: 21712-79900, Fits for various Infiniti and Nissan models.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
What Stands Out
Durable Material
Crafted from high-quality materials, this cap ensures long-lasting performance and resistance against wear, providing reliable sealing for your coolant reservoir.
Vehicle Compatibility
Designed specifically for Nissan and Infiniti models, this cap guarantees a perfect fit, eliminating worries about leaks or improper sealing.
Eye-catching Color
The vibrant yellow hue not only enhances visibility but also adds a stylish touch to your engine compartment, making maintenance checks easier and more attractive.
Product Details
- Replacement coolant overflow reservoir tank cap for Nissan and Infiniti vehicles
- Replace Part Number: 21712-79900
- Fits various models including Infiniti EX35, FX35, FX50, G37, M35, M45, Q70, QX50, and Nissan 350Z, 370Z, Murano, Quest, Rogue, Versa, Juke, Leaf, and more
- Compatible with 2003-2017 Infiniti and 2003-2017 Nissan models
- Ensures proper sealing of the radiator reservoir
- Package includes 1 radiator reservoir cap
| Item Weight | 0.3 lbs (140 grams) |
Who Should Buy?
-
Nissan Owners
Ideal for Nissan vehicle owners replacing their coolant reservoir caps for improved reliability and function.
-
DIY Mechanic
Perfect for DIY mechanics who want a cost-effective solution for their radiator reservoir needs without compromises.
-
Infiniti Enthusiasts
Great choice for Infiniti enthusiasts looking to customize or restore their vehicles with high-quality replacement parts.
-
High-Performance Cars
Not suitable for high-performance vehicles that require specialized coolant caps designed for extreme conditions.
Product Description
AUTOKAY Coolant Overflow Reservoir Tank Cap Radiator Reservoir Cap for Nissan Infiniti 21712-79900 - Yellow
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the primary function of the AUTOKAY Coolant Overflow Reservoir Tank Cap?
Answer: The AUTOKAY Coolant Overflow Reservoir Tank Cap is designed to seal the coolant overflow reservoir, keeping the coolant contained and maintaining the correct pressure within the cooling system. This ensures that the engine stays at the optimal temperature during operation, preventing overheating. A well-sealed cap prevents coolant loss and helps the vehicle function efficiently, particularly important in performance or high-temperature scenarios, such as during long drives or heavy traffic. -
Question:
Is the AUTOKAY cap compatible with all Nissan and Infiniti models?
Answer: The AUTOKAY Coolant Overflow Reservoir Tank Cap is specifically designed to fit select Nissan and Infiniti models that use the part number 21712-79900. It’s crucial to check your vehicle's specifications to ensure compatibility. This dedicated design means you can trust that the cap will fit securely and perform effectively, especially if you’re replacing an old or damaged cap, ensuring your vehicle’s cooling system works properly. -
Question:
How do I install the AUTOKAY Coolant Overflow Reservoir Tank Cap?
Answer: Installing the AUTOKAY Coolant Overflow Reservoir Tank Cap is straightforward. First, ensure that the engine is cool to avoid any risk of burns. Locate your coolant overflow reservoir, remove the old cap by turning it counterclockwise, and position the new AUTOKAY cap on the reservoir. Press down and turn clockwise until it is securely fastened. This simple installation can prevent future coolant leaks, helping protect your engine from overheating. -
Question:
What materials is the AUTOKAY coolant cap made from?
Answer: The AUTOKAY Coolant Overflow Reservoir Tank Cap is manufactured from high-quality plastic designed to withstand heat and corrosive coolant components. This material choice ensures durability over time, even under extreme temperatures, making it an excellent choice for maintaining vehicle integrity. The yellow color also adds a visual element, which can help you quickly identify the cap among other engine components, essential for any DIY mechanics or car enthusiasts. -
Question:
Will the AUTOKAY cap prevent coolant leaks effectively?
Answer: Yes, the AUTOKAY Coolant Overflow Reservoir Tank Cap is engineered to create a tight seal that effectively prevents coolant leaks. This is crucial for maintaining the appropriate coolant levels and preventing air from entering the cooling system, which can lead to overheating. Regular checks and replacements of the cap can extend the life of your engine. It's advisable to inspect the cap periodically, especially after long trips, to ensure it remains in good condition. -
Question:
What should I do if my coolant overflow reservoir cap is not staying on?
Answer: If your AUTOKAY Coolant Overflow Reservoir Tank Cap is not staying on, it may be due to a damaged or worn gasket, or the threads of the reservoir may be compromised. Removing the cap and inspecting these areas for any signs of wear can help identify the problem. In such cases, replacing the cap with a new one or consulting with a mechanic can ensure optimal performance. A secure cap is essential for preventing coolant loss and maintaining engine efficiency. -
Question:
Can using a non-OEM cap affect my vehicle's performance?
Answer: Using a non-OEM cap can potentially lead to performance issues if it does not seal properly or is incompatible with your vehicle. The AUTOKAY Coolant Overflow Reservoir Tank Cap is specifically designed for Nissan and Infiniti models, ensuring a proper fit. Using the correct cap maintains system pressure and prevents overheating, making your cooling system work effectively. This is especially important during hot weather or heavy towing, where engine temperatures can rise significantly. -
Question:
How can I tell if my coolant cap is failing?
Answer: Signs of a failing coolant cap include visible coolant leaks around the reservoir, difficulty in opening the cap, or if it appears cracked or damaged. The smell of coolant or a rise in engine temperature can also indicate issues with the cap. Addressing these issues quickly with a replacement, such as the AUTOKAY cap, can prevent more serious engine problems. Regular maintenance checks can help catch these issues before they escalate. -
Question:
What is the color significance of the AUTOKAY cap?
Answer: The yellow color of the AUTOKAY Coolant Overflow Reservoir Tank Cap serves both practical and aesthetic purposes. Yellow usually indicates coolant-related components, making it easier to identify when servicing the engine. This color differentiation is particularly beneficial for DIY enthusiasts who want to quickly locate the reservoir during routine checks or repairs, ensuring they can maintain their vehicle’s cooling system effectively. -
Question:
Where can I buy the AUTOKAY Coolant Overflow Reservoir Tank Cap in The Bahamas?
Answer: You can purchase the AUTOKAY Coolant Overflow Reservoir Tank Cap for Nissan and Infiniti models from Ubuy. Ubuy offers a wide range of automotive products, ensuring that you receive a genuine and compatible product for your vehicle. Browsing Ubuy's website will provide you with easy access to purchase the cap efficiently, making sure your coolant system remains intact and your engine operates smoothly.
AUTOKAY Coolant Recovery Kits Editorial Review
No editorial reviews found
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
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.