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SKU:
NLT1Q00227
Ships for free in 2–4 business days.
2-Piece Knock Sensor and Harness Kit for Toyota 3.4L V6 Tacoma Tundra 4Runner
$43.99
In Stock
$43.99
Sale price
$43.99
Regular price
Two new aftermarket knock sensors with the connecting harness for compatible Toyota 3.4L V6 applications.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Toyota 4Runner with compatible 3.4L V6 engine
- Toyota Tacoma with compatible 3.4L V6 engine
- Toyota Tundra with compatible 3.4L V6 engine
Product Overview
A stored knock-sensor circuit code, reduced power, retarded timing, or poor fuel economy can appear when a sensor or the under-intake harness fails. Because these parts sit beneath the intake, replacing the sensors and harness together can avoid repeating the same labor.
This kit is intended for compatible Toyota 3.4L V6 engines using the matching two-sensor layout. Confirm engine code, connector shape, sensor thread, and harness routing before purchase.
Key Features & Performance
- Includes two knock sensors and one connecting harness
- Services both sensor locations beneath the intake manifold
- Helps restore a valid knock signal after circuit diagnosis
- New aftermarket kit
Common Uses
- Repairing a confirmed knock-sensor circuit fault
- Replacing a brittle or oil-damaged under-intake harness
- Servicing both sensors while the intake manifold is removed
Technical Specifications
- Product Type: Knock Sensor and Harness Kit
- Quantity: 2 sensors and 1 harness
- Engine Application: Compatible Toyota 3.4L V6
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Disconnect the battery and relieve fuel-system pressure
- Follow the service procedure for intake-manifold removal
- Keep debris out of the intake ports and inspect nearby coolant hoses
- Clear codes and confirm both knock-sensor circuits after reassembly
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Match the 3.4L V6 engine, sensor connector, thread, harness plugs, and routing to the removed parts.
Frequently Asked Questions
Q: Should both knock sensors be replaced while the intake is off? A: Many owners replace both sensors and the harness together because access requires substantial disassembly, but diagnosis should still confirm the circuit fault.
Q: How do I confirm this is the correct knock-sensor and harness kit? A: Match the 3.4L V6 engine, sensor connector, thread, harness plugs, and routing to the removed parts.
Q: Is this supplied by Toyota? A: No. This is a new aftermarket product. Brand and model names identify compatible applications only.
Part Summary
keywords: Toyota 3.4 knock sensor kit, Tacoma knock sensor harness replacement, 4Runner V6 knock sensor repair, Tundra knock sensor pair, Toyota knock sensor code repair
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.