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Detonation Sensor – Bukhanka Modern (2.7L), Hunter & 469 (2.7L), Patriot, Profi – OEM 18.3855 (406.3855000)
This detonation (knock) sensor is designed for UAZ vehicles equipped with the ZMZ-409 2.7L injection engine, including Bukhanka Modern (2.7L), Hunter & 469 (2.7L), Patriot, and Profi. It matches OEM reference 18.3855 (catalog number 406.3855000 / 406.3855000-01) and...
This detonation (knock) sensor is designed for UAZ vehicles equipped with the ZMZ-409 2.7L injection engine, including Bukhanka Modern (2.7L), Hunter & 469 (2.7L), Patriot, and Profi. It matches OEM reference 18.3855 (catalog number 406.3855000 / 406.3855000-01) and provides accurate detection of abnormal combustion, ensuring the ECU can correct ignition timing and protect the engine from damage.
Why choose this detonation sensor?
Manufactured to OEM standards by trusted suppliers such as Avtopribor Kaluga and Meat Doria, this sensor guarantees exact fit and electrical compatibility. It reliably monitors engine vibrations for signs of detonation (pinging), enabling precise ECU adjustments to maintain smooth performance, fuel efficiency, and long-term engine health. By replacing a faulty unit, you restore consistent operation and prevent costly engine wear.
Technical details:
Material: metal housing with sealed electronics and plastic connector
Dimensions: approx. 40 × 20 × 20 mm
OEM reference: 18.3855 / 406.3855000 / 406.3855000-01
Condition: NEW, factory-grade replacement
Compatible models:
Bukhanka Modern (2.7L)
Hunter & 469 (2.7L)
Patriot
Profi
Installation tips:
Locate the sensor on the engine block (commonly near the intake side or accessory drive area). Disconnect the harness plug, then unscrew the old sensor. Clean the mounting surface before installing the new unit. Tighten carefully to OEM torque to avoid cracking the housing. Reconnect the harness and verify proper operation by clearing fault codes and running an engine test cycle.
When to replace?
Replace the knock sensor if fault codes appear in the ECU, if engine hesitation or pinging occurs, or if timing advance becomes unstable. Symptoms include power loss, poor fuel economy, and erratic acceleration. Sensors are typically replaced at around 100,000 km as preventative maintenance.
Questions about fitment?
Not sure if this part fits your vehicle? Feel free to contact us — we’re happy to help.
Not sure if this part fits your UAZ? No worries – we’ve got you covered. Every part is carefully selected, but not every Bukhanka, Hunter or 469 is exactly the same. Want to be 100% sure before ordering? Send us the details of your vehicle and we’ll verify compatibility for you. Fast, free and hassle-free.
| What we need: | Vehicle type, year and engine version (or a photo of the ID plate) |
| Contact: | Contact form or support@uazparts.com |
| Response time: | Usually within 1 business day |
Last updated: 27 June 2025
Shipping & Delivery Times
At UAZPARTS.COM, we ship quickly, securely, and internationally — from the Netherlands to UAZ enthusiasts across Europe and beyond. Below you’ll find everything you need to know about shipping options, estimated delivery times, and what to expect once your order is on the move.
Shipping Destinations
We currently ship to:
- All European Union (EU) countries
- The United Kingdom, Norway, Switzerland, Iceland, and Liechtenstein
- Selected destinations worldwide (e.g. USA, Canada, Australia)
If your country is not listed at checkout, please contact us via info@uaz-specials.com for a custom quote.
Estimated Delivery Times
Delivery times below apply to standard shipping methods (e.g. DHL Economy, DPD, PostNL). Express options (UPS Express, DHL Express) may significantly reduce transit time — depending on destination and courier service selected at checkout.
Within the European Union
| Country | Standard Delivery Estimate |
|---|---|
| Netherlands | 1–2 working days |
| Belgium | 1–2 working days |
| Germany | 1–3 working days |
| France | 2–4 working days |
| Spain | 3–6 working days |
| Italy | 3–5 working days |
| Poland | 2–4 working days |
| Austria | 2–4 working days |
| Sweden | 3–6 working days |
| Finland | 4–7 working days |
| Portugal | 4–7 working days |
| Greece | 5–8 working days |
| Others | 3–8 working days |
Outside the EU
| Country | Standard Delivery Estimate |
|---|---|
| United Kingdom | 3–6 working days |
| Norway | 3–7 working days |
| Switzerland | 2–5 working days |
| Iceland | 5–9 working days |
| USA / Canada | 6–14 working days |
| Australia / NZ | 10–20 working days |
| Other | 10–25 working days |
Order Processing Times
- Orders are processed within 1–2 business days after payment confirmation.
- Orders placed after 14:00 (CET), on weekends or public holidays will ship the next business day.
- If an item is out of stock or custom-made, we will notify you within 24 hours.
Shipping Costs
Shipping costs are calculated during checkout based on:
- Destination country
- Total weight and dimensions
- Shipping method selected (Standard or Express)
Large, heavy or oversized items (e.g. bumpers, roof racks) may incur surcharges. For bulk shipments or pallets, contact us for a custom freight quote.
Duties, VAT & Customs
EU Customers: No customs or import fees apply. All shipments are sent from the Netherlands.
Non-EU Customers (e.g. UK, Norway, Switzerland): Import duties, VAT, and local handling charges are not included and must be paid by the recipient. Refusal to pay these charges may result in the shipment being returned or destroyed, which is outside our responsibility.
Tracking & Delivery
Once your order is dispatched, you will receive an email with a tracking link. All shipments are:
- Fully trackable
- Insured against loss or damage
- Delivered with signature or collection point confirmation
Please track your shipment proactively. Missed deliveries may require collection from a local pickup point.
Delivery Issues & Returns
UAZPARTS.COM is not liable for delays or failed deliveries due to:
- Incorrect or incomplete shipping address provided by the customer
- Unclaimed packages returned to sender
- Customs clearance delays (for non-EU destinations)
- Force majeure events (strikes, weather, etc.)
If a package is returned to us due to failed delivery, we will contact you to arrange reshipment at your expense. Unclaimed or refused shipments may be refunded minus shipping and return costs.
Damaged Shipments
Upon delivery, inspect your package carefully. If damaged:
- Report the issue to the courier immediately
- Take clear photos of the outer box, label, and item
- Contact us at info@uaz-specials.com within 48 hours
Damage claims submitted later than 48 hours may be denied by the carrier and are outside our liability.
Questions?
For shipping support, time estimates, or express quotes:
- Email: info@uaz-specials.com
- Phone/WhatsApp: +31 (0)575 229 300
- Address: Pollaan 43, 7202 BV Zutphen, The Netherlands
Each part listing includes model compatibility. If you're unsure, feel free to reach out — we're here to help verify fitment before you buy.
We ship worldwide within 1–3 business days. Delivery times vary by destination — check our Shipping & Delivery page for full details.
New parts come with standard warranty. Used parts are tested, but sold as-is unless stated otherwise. Full info on our Returns & Warranty page.
We’re here to help. Send us a message or email — we usually reply within a few hours. Need help urgently? Try WhatsApp during business hours.