SCR Urea Tank Level Sensor A051K129 4378045
Tax calculated at checkout · USD · Free 60-day returns
- DEF-UNIV-4378045
Match the number printed on your old part or in the vehicle service manual — not the part name.
What this part is
Aftermarket AdBlue / DEF / urea level sensor for SCR urea tank system; application待确认. Cross-reference OEM number(s): A051K129, 4378045. Please confirm compatibility by original part number, connector, voltage, sensor length and photos before ordering.
Product Overview
This AdBlue / DEF / urea level sensor is designed for diesel SCR systems to monitor fluid level inside the urea tank. It is suitable for aftermarket replacement, fleet maintenance and B2B parts distribution.
Key Features
- Designed for AdBlue / DEF / AUS 32 / urea solution tank level monitoring
- Supports SCR diesel emission system maintenance
- OEM replacement reference: A051K129, 4378045
- Application reference: SCR urea tank system; application待确认
- Corrosion-resistant material and stable signal output requirements
- Bulk order, neutral packaging and private label options available
OEM / Cross Reference Numbers
A051K129, 4378045, 5511560, 4353387, 5510447, 70029009, 1DFQ-70300, 1DFQ70300
Compatibility Note
Vehicle application information is for reference only. Please verify the original OE number, connector type, pin count, voltage, sensor/tank length and product photos before purchase.
Request a Quote
Send us your OEM number, vehicle model, quantity and original part photos. We will help confirm the correct DEF level sensor and provide a quotation.
Disclaimer: Brand names, OEM numbers and trademarks are used for reference only. Unless specifically stated, products are aftermarket replacement parts, not genuine OEM parts.
Technical specifications
Full technical datasheet available on request. Contact us with your OEM number for the exact spec sheet.
Identification
| SKU | DEF-UNIV-4378045 |
|---|---|
| Part number | 4378045 |
| Category | DEF Level Sensors |
Verified fitment
Send us your VIN and we will confirm fitment within 4 business hours.
12-month parts warranty
Every part ships with a 12-month warranty from the date of delivery. If the part fails under normal use within that window, we replace it or refund the purchase price — your choice.
What we cover
- Manufacturing defects — no questions asked.
- Early failure within the warranty period.
- Replacement shipping both ways, on us.
What we do not cover
- Damage from incorrect installation.
- Parts modified, disassembled, or used in racing.
- Cosmetic wear or normal ageing.
Shipping rates
| Destination | Carrier | Delivery | Cost |
|---|---|---|---|
| United States (cont.) | UPS / USPS | 2–4 biz days | Free $99+ · $6.90 |
| European Union | DHL / DPD | 3–6 biz days | Free $99+ · €8.90 |
| UK / Switzerland | DHL | 3–5 biz days | Free $99+ · £8.00 |
| Rest of world | DHL Express | 5–10 biz days | Calculated at checkout |
Returns
60-day no-fuss returns. Order a return label from your account, drop the part at any carrier drop-off, and we refund within 5 business days of receiving it. Wrong-fit returns are always free.
Returns policy
