- Home Page /
- Automotive /
- Automotive Replacement Parts /
- Sensors /
- Oxygen /
- NTK 21546 Oxygen Sensor
0 ratings
Item #:
21146604
NTK 21546 Oxygen Sensor
89% of respondents would recommend this to a friend
Item #:
21146604
AUD 128
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Saturday, November 21
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
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 V-120 V). Recommended power converters Buy Now.
What Stands Out
Precision Engineering
Designed for accurate measurement, the NTK 21546 Oxygen Sensor ensures optimal engine performance by providing precise data to the vehicle's ECU, enhancing fuel efficiency and reducing emissions.
Durable Construction
Crafted from high-quality materials, this sensor boasts a long lifespan and resistance to extreme temperatures, ensuring reliable operation over time, outperforming many competitors in durability.
Easy Installation
The NTK 21546 is designed for straightforward installation, allowing users to replace their oxygen sensor quickly, minimizing downtime and making it an ideal choice for DIY enthusiasts and professional mechanics alike.
Product Details
| Mounting Type | Flange Mount |
| Output Type | Analog |
| Specific Uses For Product | Oxygen Sensor |
| Upper Temperature Rating | 850 u00b0C |
| Material Type | Ceramic |
| Style Name | Modern |
| Item Dimensions | 17.5 x 1 x 1 inches (44.5 x 2.5 x 2.5 cm) |
| Item Weight | 3.68 ounces (104.33 grams) |
| Brand Name | NTK |
| Model | 21546 |
| UPC | 087295215463 |
| Number of Items | 1 |
| Global Trade Identification Number | 00087295215463 |
| Manufacturer | NGK |
| Item Highlight | Replaces 12569429 12573167 12576131 12580827 12583804 12584925 12587785 12590790 12594452 12596701 12597878 12607410. |
| Unit Count | 1 Count |
| Included Components | Oxygen Sensor, Installation Instructions |
| Item Type Name | Oxygen Sensor |
| Part Number | 21546 |
| Brand | NTK |
| Item dimensions L x W x H | 17.5 x 1 x 1 inches (44.5 x 2.5 x 2.5 cm) |
| Material | Ceramic |
| Style | Modern |
Who Should Buy?
-
Fuel Efficiency Seekers
Ideal for users looking to improve fuel efficiency by ensuring accurate readings to the engine control unit.
-
Repairing Enthusiasts
Perfect for DIY mechanics and car enthusiasts performing sensor replacement to restore proper engine function.
-
Vehicles with Emission Issues
Beneficial for drivers experiencing check engine light triggers related to emissions and correcting air-fuel mixture.
-
Older Vehicles
Not suitable for older car models that may require different specifications than the NTK 21546 can provide.
Product Description
NTK 21546 Oxygen Sensor
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
How to Shop NTK 21546 Oxygen Sensor Online From Ubuy?
Answer: It’s easy to shop NTK 21546 Oxygen Sensor online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location. -
Question:
Is NTK 21546 Oxygen Sensor Available to Shop Online in Tuvalu?
Answer: Yes, at Ubuy Tuvalu this product is available for you to shop at a reasonable price. The NTK 21546 Oxygen Sensor is not available locally but you can trust us with our express shipping services. -
Question:
How Long Does It Take to Get Product After Placing the Order?
Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.
NTK Oxygen Editorial Review
**** The NTK 21546 Oxygen Sensor has garnered strong positive feedback from users, particularly those replacing stock sensors in vintage vehicles like the 2004 Corvette and Cadillac Deville. Customers have been impressed with the sensor’s compatibility, noting that it features correct electrical connectors and appropriate cable lengths to seamlessly integrate with original wiring harnesses. Users have reported enhanced vehicle performance, including improved gas mileage, after installation, which suggests that this product outperforms many original equipment manufacturer (OEM) options. With over 100 miles driven post-installation, multiple reviewers have confirmed that the sensors function reliably without triggering check engine lights. Many users expressed satisfaction with the high quality and performance of NTK sensors, stating that they are a trustworthy alternative to OEM components. The Consensus among those who have replaced their O2 sensors with NTK is that they experience noticeable improvements in efficiency and functionality. In sum, the NTK 21546 Oxygen Sensor is a well-regarded product among car enthusiasts and those seeking reliable replacement parts, demonstrating solid performance metrics as well as compatibility across various vehicles. **
Customer Reviews & Ratings
1 customers ratings
-
5 Star
0%
-
4 Star
100%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Excellent fit and compatibility with stock wiring.
- Improved gas mileage reported.
- Reliable performance with no check engine light after installation.
- Superior quality compared to OEM sensors.
- Positive experiences from multiple vehicle models.
Cons
- Limited customer feedback on long-term reliability past initial installation phase.
Platform Trust & Buyer Confidence
MB
Mona
Verified buyer
“Everything was efficient and fast. ”
05 November 2026 · via Trustpilot
MT
Music
Verified buyer
“The prices—including shipping costs and customs duties—are clear from the very beginning, with no hidden fees. I highly recommend using their services. My experience with the "Ubuy" website was excellent. I purchased a PRS USA Swamp Ash Special guitar, and it arrived in just 11 days. The shipping service was fantastic, and the product arrived in perfect condition. What I particularly appreciated about the site is that the prices—including shipping costs and customs duties—are clear from the very beginning, with no hidden fees. I highly recommend using their services.”
05 November 2026 · via Trustpilot
WF
William
Verified buyer
“I can't fault this purchase. Had a scarce part i needed, cheaper than i could source it in the UK, ordered and was followed up with great communication and speedy delivery of a very well packaged part.”
06 November 2026 · via Trustpilot
A
Andrew
Verified buyer
“Fast delivery, good and secure packaging, everything was fine and with no problems.”
06 November, 2026 · via Trustpilot
SM
Stephen
Verified buyer
“I am very happy with my insoles purchase, they make my work boots very comfortable and soft to walk on and even mitigate the vibration from driving the truck all day. I would highly recommend this company for online purchases, reliability of product delivery and value for money.”
07 November 2026 · via Trustpilot
WHY SHOP WITH US
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
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.
AUD 128
Order now and get it around Saturday, November 21
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.
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.