213-3521 Dual Knock Sensors Kit for 1999-07 Chevy Tahoe Suburban GMC 4.8 5.3 6.0

This Dual Knock Sensors Kit is a direct replacement engine knock sensor set compatible with 1999-2007 Chevrolet Tahoe, Suburban, and GMC Yukon/Yukon XL models with 4.8L, 5.3L, and 6.0L V8 engines and matches OEM part number 213-3521.

Product Overview

The 213-3521 Dual Knock Sensors Kit restores proper engine timing by detecting detonation in your GM truck or SUV. Designed to replace corroded or failed sensors on 1999-2007 Chevy Tahoe, Suburban, and GMC Yukon vehicles, this dual knock sensor kit eliminates false knock readings and check engine lights. It includes two sensors and a new harness, ensuring a complete repair for 4.8L, 5.3L, and 6.0L Vortec engines.

Key Features & Performance

• Accurate piezoelectric sensors deliver consistent signal to the ECU
• Kit includes two knock sensors and replacement wiring harness
• Pre-assembled weather-resistant connectors guard against moisture and corrosion
• OEM-spec flat-response design matches factory calibration
• Helps resolve trouble codes P0325, P0330, and related pinging issues

Fitment & Compatibility

• 1999-2007 Chevrolet Tahoe (4.8L, 5.3L, 6.0L)
• 1999-2007 Chevrolet Suburban (4.8L, 5.3L, 6.0L)
• 1999-2007 GMC Yukon / Yukon XL (4.8L, 5.3L, 6.0L)

Common Uses

• Replacing faulty knock sensors causing reduced power and poor fuel economy
• Fixing persistent check engine light codes P0325, P0330, P0327, P0332
• Servicing sensors during intake manifold gasket replacement
• Restoring detonation protection on high-mileage Vortec engines
• Preventive maintenance when upgrading intake or engine management

Technical Specifications

• Part Number(s): 213-3521
• Sensor Type: Piezoelectric (flat response)
• Connector: Weatherproof 2-pin
• Kit Includes: 2 knock sensors and replacement wiring harness

Frequently Asked Questions

Q: Will this kit fix a P0325 or P0330 trouble code on my 2005 Tahoe? A: Yes, these codes commonly indicate knock sensor failure; installing the 213-3521 kit often clears them, but we recommend confirming the wiring first.

Q: Do I need to replace the intake manifold gaskets at the same time? A: The knock sensors are located under the intake manifold, so replacing the intake gaskets while the manifold is off is highly recommended.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.