Automotive knock sensor designed to restore accurate engine knock detection and match certain Mazda 3 BK models, offering reliable, factory-style fitting. Drivers after a straightforward replacement will welcome clear diagnostics and greater confidence on the road. Does Kuuleyn Knock Sensor match your car and clear lingering knock warnings?
⚡ At a Glance
- • Detection Accuracy: Factory-spec manufacturing, high accuracy and durable construction
- • Best for: Owners of Mazda 3 BK (2003-2009) needing an OE-fit replacement
- • Not ideal for: Vehicles outside the listed Mazda 3 BK fitment range
Designed as a direct OE-match to ZJ01-18-921 for Mazda 3 BK models. Uses higher-grade hose material and factory-level processing for accuracy and durability.
Direct OE fit - with original factory matching ZJ01-18-921
Manufactured to match original equipment specifications and listed fitment for Mazda 3 BK 1.4/1.6/2.0/2.3 models from 2003 to 2009. The OE part number reference ensures compatibility with original mounting and wiring.
A simple swap-in replacement reduces the risk of fitment errors and avoids modifications during installation.
Accurate knock detection - thanks to professional manufacturing
Produced using professional manufacturing processes focused on sensor precision, as stated in the product description. Quality control aims to deliver consistent detection performance aligned with original specifications.
Helps clear knock warnings and restore reliable engine feedback, supported by user reports of cleared knock sensor warnings.
Durable, lightweight construction - with high-quality hose material
High-quality hose material is specified for the sensor, offering a lighter assembly while maintaining enhanced durability compared with lower-grade alternatives. Material choice contributes to longevity under engine bay conditions.
Expect a more robust service life and fewer premature failures, making it a practical replacement choice.
✨ The 4 Key Reasons for Kuuleyn Knock Sensor
- OE Part Number Match - Ensures exact fit for ZJ01-18-921 referenced vehicles, without modifications
- Easy Installation - Matches original mounting, enabling quick swap with standard tools
- Lightweight Hose Material - Reduces added mass while maintaining improved durability over time
- Cleared Knock Warning - Proven by user reports to stop knock fault lights appearing
📋 Technical Details at a Glance
- Category: Knock Sensor
- Brand: Kuuleyn
- Compatible Vehicles: Mazda 3 BK 1.4 / 1.6 / 2.0 / 2.3 (2003-2009)
- OE Part Number: ZJ01-18-921
- Material: High-quality hose material
❓ Frequently Asked Questions
Q: Will this sensor fit my Mazda 3?
A: The sensor lists fitment for Mazda 3 BK 1.4, 1.6, 2.0 and 2.3 models from 2003 to 2009, so check the vehicle model and year to confirm compatibility.
Q: Is this an OE-equivalent part?
A: Yes, the item matches the original equipment reference number ZJ01-18-921 according to the product description, indicating an OE-style match.
Q: Is installation difficult for a home mechanic?
A: Installation is described as easy and a perfect match to the original car, so straightforward swapping with standard tools is expected for those comfortable with basic engine-bay tasks.
🏆 Our Verdict
The Kuuleyn Knock Sensor suits Mazda 3 BK owners who need a direct OE-match replacement to restore reliable knock detection. Matching OE number ZJ01-18-921 and the use of higher-grade hose material underline its practical advantage for durability and fit. Reported effectiveness and robust construction indicate good long-term value and reduced chance of repeat replacements.
