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Item #:
28723161
AC DELCO 213-3521 Knock Sensor Pair for Chevy GMC Cadillac Pontiac Pickup V8
Item #:
28723161
AUD 287
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Imported from USA store
QTY:
Order now and get it around Sunday, September 06
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What Stands Out
High Compatibility
Designed specifically for Chevy, GMC, Cadillac, and Pontiac V8 models, ensuring a perfect fit and optimal performance in various pickup applications.
Enhanced Engine Longevity
These sensors effectively detect knocking, preventing engine damage and promoting longevity, making them a vital upgrade for performance-focused drivers.
Reliable Quality
Manufactured by AC Delco, known for premium parts, ensuring superior reliability and performance, giving buyers confidence in their purchase.
Product Details
| Mounting Type | Flange Mount |
| Output Type | Digital |
| Specific Uses For Product | automotive, ignition monitoring |
| Material Type | Metal |
| Style Name | Modern |
| Item Weight | 0.27 g |
| Brand Name | 1A Auto |
| Model | 213-3521 |
| UPC | 191213348871 |
| Number of Items | 1 |
| Manufacturer | 1A Auto |
| Unit Count | 2 Count |
| Included Components | Knock Sensor |
| Item Type Name | Knock Sensor |
| Part Number | ACEEK00030 |
| Brand | 1A Auto |
| Material | Metal |
| Style | Modern |
Who Should Buy?
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Vehicle Owners
Ideal for owners of Chevy, GMC, Cadillac, and Pontiac vehicles experiencing engine knocking issues or performance drops.
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Mechanics
A must-have for mechanics looking to replace faulty knock sensors in V8 pickups for better engine functionality.
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DIY Enthusiasts
Great for DIYers who want a reliable, high-quality sensor solution for their V8 engine repair projects.
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Non-V8 Vehicles
Not suitable for vehicles with engines other than V8, as it’s specifically designed for these models only.
Product Description
AC DELCO 213-3521 Knock Sensor Pair for Chevy GMC Cadillac Pontiac Pickup V8
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the purpose of the AC DELCO 213-3521 Knock Sensor Pair?
Answer: The AC DELCO 213-3521 Knock Sensor Pair is designed to monitor engine vibrations and detect knocking or pinging sounds that indicate improper combustion. This is crucial for ensuring optimal engine performance and fuel efficiency. When knock sensors detect issues, they signal the engine control unit (ECU) to adjust the ignition timing accordingly. For drivers of Chevy, GMC, Cadillac, and Pontiac vehicles with V8 engines, this component is vital for maintaining proper engine operation and preventing potential damage. -
Question:
How do I install the AC DELCO 213-3521 Knock Sensor Pair?
Answer: Installing the AC DELCO 213-3521 Knock Sensor Pair involves locating the sensors on your vehicle's engine block and removing the old sensors. You will need basic tools such as a socket wrench. The new sensors should be installed in the same position and securely fastened to ensure proper function. It's advisable to disconnect the battery before installation to avoid any electrical issues. Many car enthusiasts and DIY mechanics prefer handling this installation themselves as it saves on labor costs and allows for a better understanding of vehicle maintenance. -
Question:
How can I tell if my knock sensor is failing?
Answer: Signs of a failing knock sensor include engine knocking sounds, poor fuel economy, a check engine light, and reduced engine performance. If you experience vibrations or irregular sounds coming from your engine, it indicates that the knock sensor is either malfunctioning or not properly detecting knocks. Addressing this issue promptly can avert further engine complications. Monitoring your vehicle's performance and being mindful of any unusual sounds can help in early detection, making it easier to diagnose and replace the sensor before more severe problems arise. -
Question:
Is the AC DELCO 213-3521 compatible with all Chevy GMC Cadillac Pontiac V8 models?
Answer: The AC DELCO 213-3521 is specifically designed for select Chevy, GMC, Cadillac, and Pontiac V8 models. To ensure compatibility, it's essential to check your vehicle's specifications regarding engine type and model year. This compatibility ensures that the sensor functions optimally with your vehicle’s engine management system. Installing an incompatible sensor could lead to performance issues and potential damage, so verifying compatibility is highly recommended for all vehicle owners looking to upgrade or replace their knock sensors. -
Question:
What are the benefits of using AC DELCO products?
Answer: AC DELCO products are known for their high quality and reliability, especially in the automotive industry. Being an established manufacturer, AC DELCO ensures that their replacement parts meet Original Equipment Manufacturer (OEM) standards, providing assurance of performance and longevity. For users, this means fewer breakdowns and better engine health, enhancing overall driving experience. Many car owners trust AC DELCO for maintaining their vehicles, as using OEM-quality parts can significantly increase reliability, especially in high-performance situations. -
Question:
Will replacing the knock sensor improve my engine's performance?
Answer: Yes, replacing a malfunctioning knock sensor can significantly improve your engine’s performance. A functional knock sensor allows the engine control unit to adjust timing and fuel mixture appropriately, leading to better combustion efficiency. This results in smoother acceleration, improved fuel economy, and lower emissions. For drivers experiencing symptoms of a bad sensor, such as knocking noises or poor performance, replacing it with an AC DELCO 213-3521 can restore engine efficiency and enhance driving comfort. -
Question:
What tools are needed to replace the AC DELCO 213-3521 Knock Sensor Pair?
Answer: To replace the AC DELCO 213-3521 Knock Sensor Pair, you typically need a socket wrench set, a torque wrench, and possibly some screwdrivers. It’s essential to have a basic understanding of engine components and access to the vehicle’s specifications for torque settings. These tools enable you to remove the old sensors and properly install the new ones while ensuring everything is tightened to the manufacturer's engagement specifications. Having the right tools ensures a smoother installation process, minimizing any risk of damage to surrounding components. -
Question:
What other components should I inspect while replacing the knock sensors?
Answer: When replacing the AC DELCO 213-3521 Knock Sensor Pair, it’s wise to inspect related components such as the wiring harness, the engine control unit, and the overall condition of the engine. Ensuring that the wiring is intact and free of corrosion or breaks can prevent future sensor issues. Additionally, checking the spark plugs and fuel injectors can reveal underlying problems that may affect engine performance. This comprehensive approach can save you time and expense by addressing multiple potential concerns in one maintenance session. -
Question:
Are there any specific maintenance tips for the knock sensor?
Answer: To ensure the longevity of your AC DELCO 213-3521 Knock Sensor Pair, regular engine maintenance is key. Keeping the engine clean and free from debris can prevent external damage to the sensor. Additionally, ensuring that the engine's tuning is within ideal parameters can reduce the chances of abnormal knocking, thus lessening the load on the sensor. Furthermore, periodic checks on the sensor’s wiring and connections can help detect potential wear or corrosion early, allowing for proactive maintenance. This can significantly enhance the sensor's effectiveness and reliability. -
Question:
Where can I buy AC DELCO 213-3521 Knock Sensor Pair for Chevy GMC Cadillac Pontiac Pickup V8?
Answer: You can conveniently buy the AC DELCO 213-3521 Knock Sensor Pair at Ubuy. They offer a range of automotive parts including this specific sensor pair, ensuring you get reliable products for your vehicle. Ubuy provides an easy-to-navigate platform that also features product specifications, customer reviews, and essential details to assist you in making an informed purchase. Their commitment to customer satisfaction and extensive selections makes it a preferred destination for car parts.
1A Auto Detonation Editorial Review
The AC DELCO 213-3521 Knock Sensor Pair for Chevy GMC Cadillac Pontiac Pickup V8 has received mixed reviews from customers. While some customers have praised the product for its perfect fit and easy installation, others have expressed disappointment. One customer mentioned that the knock sensors were not genuine AC Delco parts, as a sticker underneath the label clearly indicated that they were made in China. On the other hand, another customer confirmed that the knock sensors were indeed genuine AC Delco parts and worked perfectly. One recurring issue highlighted by customers was the packaging of the product. Some customers shared pictures of poorly packaged sensors, expressing concerns about potential damage during shipping. One customer even reported that their knock sensors were not reading at all after installation, suggesting that they may have been mishandled during shipping. However, other customers were satisfied with the product, noting that it immediately cleared their knock sensor codes and fixed associated engine timing issues. Some customers also appreciated the affordable price of the AC Delco knock sensors and mentioned that they would buy them again. Overall, while the AC DELCO 213-3521 Knock Sensor Pair has shown to be effective for some customers, the mixed reviews regarding packaging and authenticity of the product should be taken into Consideration before making a purchase.
Customer Reviews & Ratings
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Pros
- Perfect fit for various Chevy, GMC, Cadillac, and Pontiac models
- Easy installation
- Effectively clears knock sensor codes and improves engine timing
- Affordable price
Cons
- Concerns about authenticity, with some customers claiming the product is not genuine AC Delco
Platform Trust & Buyer Confidence
CJ
Chris
Verified buyer
“Promt delivery. Seems like a good product.”
22 July 2026 · via Trustpilot
SM
Scott
Verified buyer
“It was the best service ever received by any company from my online shopping experience in the last 10yrs”
11 July 2026 · via Trustpilot
TD
Terri
Verified buyer
“so easy to order delivery was way earlier than i expected”
3 July 2026 · via Trustpilot
GC
Gavin
Verified buyer
“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”
21-Jul-26 · via Trustpilot
J
Jeannie
Verified buyer
“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”
17-Jul-26 · via Trustpilot
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AUD 287
Order now and get it around Sunday, September 06
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.)
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Features & Benefits
- Genuine OEM parts offer the best performance for your vehicle
- Sensors are packed in bubble wrap for extra protection during shipping
- Quality, reliability and durability are assured with OEM parts
- Research application is necessary prior to purchase
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