DELPHI SX-3958 Ignition Knock Detonation Sensor 6.2L V8

( Brand: Delphi ), ( Type: Ignition Knock ), ( Manufacturer Part Number: SX-3958 ), ( Manufacturer Warranty: 1 Year / 12, 000 Miles ), ( Ipn: C319 64-20 ), ( Item Height: 1.570 ), ( Item Length: 3.150 ), ( Item Weight: 0.0700 ), ( Placement On Vehicle: Emission Control Sensors ), ( Compatible Year: 2009 2008 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Delphi Ignition Knock )

Review DELPHI Ignition Knock Detonation Sensor Hummer 6.2l V8 Wh fits H2 2008–2009

The Delphi SX-3958 Ignition Knock Sensor is specifically designed for use in 2008 and 2009 Hummer H2 vehicles equipped with the 6.2L V8 engine. This sensor plays a crucial role in maintaining the optimal performance and longevity of your engine by monitoring and detecting any signs of ignition knock or detonation.

The ignition knock sensor is essentially a microphone that listens to the sounds generated within the engine during the combustion process. It continuously analyzes the engine's acoustic signals and converts them into electrical impulses, which are then sent to the engine control module (ECM). The ECM uses this information to adjust the ignition timing and fuel delivery to prevent or mitigate any potential knocking or detonation.

This Delphi sensor is engineered to meet or exceed the original equipment manufacturer (OEM) specifications for the Hummer H2. It is designed with a robust construction, ensuring that it can withstand the harsh operating conditions within the engine compartment. The sensor features a precision-machined diaphragm, which is sensitive to even the slightest changes in engine sound, allowing it to detect any developing knock or detonation issues early on.

It is important to note that a faulty ignition knock sensor can lead to a multitude of issues, including poor engine performance, reduced fuel efficiency, and in extreme cases, engine damage. Therefore, it is recommended to replace the sensor if you suspect it may be faulty or if it has surpassed the recommended replacement interval.

Installation of the Delphi SX-3958 Ignition Knock Sensor is a relatively straightforward process, as it is a direct replacement for the OEM sensor. All necessary mounting hardware and installation instructions are included in the packaging. However, it is always a good idea to consult your vehicle's service manual or a professional mechanic if you are unsure about the installation process.

In summary, the Delphi SX-3958 Ignition Knock Sensor is an essential component for maintaining the performance and longevity of your 2008-2009 Hummer H2's 6.2L V8 engine. Its precision design and robust construction ensure accurate detection of any developing knock or detonation issues, allowing you to address these issues before they cause more significant damage to your engine.

Delphi Sx-3958 Ignition Knock Sensor for 2008-2009 Hummer H2 (6.2L V8): Pros, Cons, and Recommendation

The Delphi Sx-3958 Ignition Knock Sensor is a crucial component for the 2008-2009 Hummer H2's 6.2L V8 engine, responsible for detecting and reporting engine knocking to the powertrain control module. In this analysis, we will discuss the pros, cons, and provide a recommendation based on customer reviews and expert opinions.

1. Improved Engine Performance: By accurately detecting and reporting engine knock, the Delphi Sx-3958 sensor ensures optimal engine performance and helps prevent damage to the engine caused by knocking.

2. OEM Quality: This sensor is a direct replacement for the original equipment manufacturer (OEM) sensor, ensuring a perfect fit and reliable operation.

3. Easy Installation: The installation process is straightforward, typically involving only a few steps such as disconnecting the battery, removing the old sensor, and installing the new one.

1. Potential for False Positives: Some users have reported instances of the sensor triggering a check engine light due to false positives, which can be caused by various factors including worn or faulty components.

2. High Price Point: Compared to aftermarket alternatives, the Delphi Sx-3958 sensor can be more expensive, which may deter some buyers.

Based on the available information, the Delphi Sx-3958 Ignition Knock Sensor is a reliable and effective option for addressing engine knocking issues in the 2008-2009 Hummer H2. However, it is essential to ensure that all related components are in good condition to prevent false positives. If you are on a tight budget, consider exploring aftermarket alternatives, but keep in mind that their reliability and OEM fit might not be as guaranteed. Overall, if you prioritize OEM quality and optimal engine performance, the Delphi Sx-3958 sensor is a solid investment.

part # sx3958 prices

• $20.86-$46.84

specifications injectiopug:

• for models: H2
• for makes: Hummer
• for years: 2008-2009
• brand: Delphi
• type: Ignition Knock
• manufacturer part number: SX-3958
• manufacturer warranty: 1 Year / 12, 000 Miles
• interchange part number: C319 64-20
• item height: 1.570
• item length: 3.150
• item weight: 0.0700
• placement on vehicle: Emission Control Sensors
• compatible year: 2009 2008
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Delphi Ignition Knock

payments injectiopug:

• wallet: Google-pay
• other
• credit card: Discover

general injectiopug:

• condition: New
• Air Fuel Delivery > Fuel Injection Parts > Additional Fuel Injection Parts

offer injectiopug:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 2
• started: June 9, 2026

shipping injectiopug:

• type: Fixed
• class: Standard, Expedited
• transit: 2-6 Days
• service: Standard, Expedited
• cost: $0.00

returns injectiopug:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

seller injectiopug:

• rating: 99.7%
• # reviews: 666205

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