Knock Sensor E1T50471 ZL02-18-921 for Mazda 323 Demio Premacy Familia
Knock Sensor E1T50471 ZL02-18-921 for Mazda 323 Demio Premacy Familia
Processing time: 2?3 business days. Standard delivery: 7?15 business days. Express delivery: 3?7 business days, where available.
200 in stock
Replacement engine knock sensor designed for Mazda 323, Demio, Premacy, Familia and compatible Mazda vehicles using part numbers E1T50471, ZL02-18-921, ZL0218921 and V32720012.
This knock sensor helps detect abnormal engine vibration or detonation and sends signal data to the engine control unit. A faulty knock sensor may cause poor acceleration, reduced power, increased fuel consumption, engine pinging, or check engine light issues.
Features
- Direct replacement engine knock sensor
- Also known as detonation sensor / engine vibration sensor
- Helps detect engine knocking and abnormal combustion vibration
- Supports proper ignition timing adjustment
- Suitable for Mazda 323, Demio, Premacy and Familia applications
- Replacement for E1T50471, ZL02-18-921, ZL0218921, V32720012
- Helps improve engine stability and fuel efficiency
Compatible Vehicles
- Mazda 323
- Mazda 626
- Mazda Demio
- Mazda Premacy
- Mazda Familia
- Mazda models using matching OE number
- Mitsubishi Lancer Evo, only if original OE number matches
Replace Part Numbers
- E1T50471
- ZL02-18-921
- ZL0218921
- V32720012
- SEB1670
- KS138
- 550341
- 19586
- V32-72-0012
- 0907010
- J5673001
Package Includes
- 1 × Knock Sensor
Fitment Note
Please confirm your original part number, plug type, sensor shape, and engine model before ordering. Fitment may vary by year, engine size, trim, and market region.
Product FAQ
Will this Knock Sensor fit my vehicle?
This product is intended for vehicles that match the OE part number and application details shown on this page. Please compare your original part with E1T50471, ZL02-18-921, and verify the connector, mounting points, and fitment for Mazda before ordering.
Which part number should I use to confirm compatibility?
Use the OE or replacement part number on your original component first. For this listing, compare against: E1T50471, ZL02-18-921. Matching the part number is usually more reliable than matching only the model name or year range.
What symptoms can this part help solve?
A failing Knock Sensor may be related to knock sensor fault codes, poor timing correction, reduced power, or engine pinging diagnosis. Always confirm the diagnosis with scan-tool data, fault codes, or a technician inspection before replacing the part.
What should I check before purchase?
Please check the OE number, connector shape, pin count, mounting points, size, and vehicle application. Small differences in plugs, brackets, sensor position, or production year can affect fitment even when the vehicle model looks similar.
Is this a new replacement part?
Yes, this listing is for a new replacement auto part supplied by Staceedress Auto Parts. Keep the original part until installation is complete so you can compare the shape and connector side by side.
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Questions check here
How long does shipping take?
How long does shipping take?
Processing time: 2?3 business days. Standard delivery: 7?15 business days. Express delivery: 3?7 business days, where available.
Does this part come with protective packaging?
Does this part come with protective packaging?
Yes. Each auto part is packed with protective materials to reduce damage during transit. Please inspect the part before installation and keep the original packaging until fitment is confirmed.
Do you ship internationally?
Do you ship internationally?
Free standard shipping is available on orders over $15. Express shipping is calculated at checkout. International delivery availability and timing may vary by destination.
What payment methods do you accept?
What payment methods do you accept?
We accept a variety of payment methods to make your shopping experience convenient. These include credit cards (Visa, Mastercard, American Express), PayPal, and, in some regions, alternative payment methods such as Apple Pay or Google Pay. Rest assured, your payment information is secure and protected during the checkout process.
