DEF Doser Injectors
Heavy-duty and commercial diesel SCR injector sourcing by OE number, sample, connector, and application.
Products / DEF Injectors / AdBlue Injectors
DEF / AdBlue Injectors
Replacement DEF and AdBlue doser injectors for diesel SCR systems, supported by OE matching, application confirmation, quality workflow, packing discussion, and buyer-specific RFQ support.
Definition
What is a DEF / AdBlue injector?
A DEF injector, also called an AdBlue injector, urea injector, or SCR doser injector, sprays diesel exhaust fluid into the SCR aftertreatment stream. WEUP treats the injector as one part of a wider sourcing solution that may also include modules, pumps, valves, nozzles, quality checks, and export packing.
Injector types we supply
AdBlue Injectors
European passenger-car, van, pickup, and light commercial AdBlue injector inquiry path.
Urea Injector Assemblies
Urea dosing assemblies and related replacement parts for aftermarket sourcing.
Nozzles, Valves, and SCR Parts
Related nozzles, dosing valves, connectors, and service parts grouped for RFQ until catalog data is complete.
Solution support
This category is part of a complete SCR dosing sourcing solution.
Buyers often need more than a single replacement part. WEUP uses the product category as the starting point for OE matching, related-part planning, inspection workflow, and buyer-specific RFQ support.
OE Matching Solution
Turn OE/OEM numbers, sample photos, connector views, and vehicle data into a clearer sourcing direction.
Product Range Planning
Combine injectors, dosing modules, urea pumps, valves, nozzles, and SCR parts around buyer demand.
Quality & Packing Workflow
Support each quote with flow, spray, sealing, connector, traceability, export packing, and label checks.
Buyer-Specific RFQ Path
Separate distributor, repair network, fleet, and OEM / ODM needs so the quote asks the right questions.
By engine brand
Route brand searches into a safer matching workflow.
Engine brand pages help the buyer start the search, but the quote should still confirm OE number, sample photo, connector shape, application, and quantity.
Cummins DEF Injectors
2888173 / 2888112 and related doser references
Paccar DEF Injectors
Paccar doser injector sourcing path
Volvo / Mack DEF Injectors
Includes 22391563-style cross-reference planning
Bosch DEF Injectors
0444043017 / 0444043107 and Bosch-style references
Detroit DEF Injectors
DD13 / DD15 sourcing and OE matching path
DAF / MAN Urea Injectors
European truck and engine search cluster
By vehicle application
Help buyers confirm the sourcing direction before RFQ.
Application pages keep truck, van, passenger-car, and off-highway search intent separated.
Heavy-Duty Trucks
Commercial diesel truck repair and aftermarket replacement sourcing.
Vans & Pickups
Light commercial diesel vehicles, Sprinter-style vans, and pickup SCR systems.
Passenger Cars
AdBlue injector route for Mercedes, BMW, Audi, VW, Skoda, Seat, and similar diesel cars.
Off-Highway Equipment
Construction, agricultural, and industrial diesel equipment service channels.
OE matching
Match by OE number, sample photo, or vehicle application.
Exact OE references, vehicle fitment, and electrical data must be confirmed from catalog files or buyer samples before publishing as hard claims.
OE/OEM number
Required when available; buyer can send original label, catalog reference, or cross-reference number.
Application
Truck, van, pickup, passenger car, bus, or off-highway diesel SCR system.
Connector type
Confirm from sample photo or original part before quotation.
Electrical data
Voltage and resistance should be confirmed from real product data.
Quantity
Sample, small batch, or distributor bulk inquiry.
Packing
Neutral, branded, carton label, barcode, or private-label inquiry.
Inspection and quality
Flow, spray, sealing, connector, and packing checks support every RFQ.
This category page links into the dedicated quality page, where process proof lives instead of unverified certificate claims.
Flow consistency
Spray atomization
Sealing inspection
Connector fitment
Electrical checks
Batch traceability
Export packing
Private-label packing
Quality page is the trust hub
Product pages link to /quality for testing, packing, and inspection workflow details.
View quality pageBuyer paths
Choose the buyer scenario that matches the RFQ.
The same product can require different support depending on whether the buyer is building a catalog, repairing vehicles, maintaining a fleet, or preparing a private-label range.
Aftermarket Distributors
Build a sellable SCR dosing range with OE cross-reference, category planning, packing, and batch quotation support.
Repair Networks
Match replacement parts from OE number, sample photo, connector view, vehicle data, and repair workflow.
Fleet Maintenance Buyers
Organize repeat sourcing for vehicle groups, maintenance schedules, and frequently replaced SCR dosing parts.
OEM / ODM & Private Label
Prepare private-label packing, carton labels, catalog structure, and product selection for resale programs.
FAQ
Common buyer questions before quotation.
Are DEF injectors and AdBlue injectors the same product?
They refer to the same SCR dosing part in different markets. DEF is common in North America, while AdBlue is common in Europe and passenger-car searches.
Can WEUP quote without a full part number?
Yes, buyers can send a sample photo, connector view, vehicle model, engine model, and quantity. OE number is still the fastest path.
How should 12V and 24V versions be confirmed?
Voltage and connector details should be confirmed from the OE number, sample photo, product label, or catalog data before quotation.
Can this page add exact OE numbers later?
Yes. Once the product catalog is confirmed, top OE references can become linked /oe/ pages and cross-reference tables.