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DEF / AdBlue Doser Injector and Urea Dosing Pump Directory

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AdBlue DEF urea level sensor appearance diagram showing electrical connector cable harness coolant tubes mounting flange level sensor rod temperature sensor urea quality sensor heater coil and bottom protective base

DEF / AdBlue dosing injector

Match the injector by OE number, connector and SCR dosing layout

DEF / urea injectors dose AdBlue fluid into the SCR exhaust stream. For replacement sourcing, buyers should confirm the OE number, connector shape, nozzle orientation, mounting position and vehicle or engine application before ordering.

Für MusterbestellungenUse Muster online kaufen when the part number is already confirmed.
For bulk RFQSend OE number, photos, quantity, destination and packaging requirements.
Before paymentConfirm voltage, connector, dosing module design and SCR fault record.
SCR Aftertreatment Components

AdBlue / DEF Doser Injector & Urea Dosing Module Master Directory

Doser injectors and urea dosing modules are the metering heart of every SCR aftertreatment system. SHR Autoparts supplies factory-direct replacements for Bosch Denoxtronic 1 and 2.2 platforms, covering Mercedes-Benz, Volvo, Scania, MAN, DAF, Cummins, Mack and Iveco fleets. Send an OE number or VIN for an application check before ordering.

Three Primary Doser Injector & Dosing Module Categories

Every SCR system uses two urea-metering components: the dosing injector (nozzle mounted in the exhaust pipe, sprays DEF into the hot stream) and the urea dosing pump / doser module (supply unit that draws DEF from the tank, filters and pressurises it). Most failure calls involve both — the crystallised nozzle and the pump’s reversing-valve circuit.

Exhaust-Mounted Nozzle

DEF Doser Injectors & Dosing Valves

Stainless / ceramic nozzles with integrated 12V or 24V heater circuits, mounted downstream of the turbo on Bosch Denoxtronic 2.2, Mercedes OM471/OM473 and Cummins 2.2 platforms. The nozzle orifice is the #1 crystallization failure point.

  • Orifice: 0.15 – 0.40 mm precision multi-hole (2–15 L/h)
  • Heater: 12V / 24V anti-freeze element
  • Platforms: Denoxtronic 2.2, Mercedes BlueTEC, Cummins 2.2

Browse injector OE matrix

Supply Unit

AdBlue / Urea Dosing Pumps & Doser Modules

The underfloor supply module: draws DEF from the tank, filters to sub-micron purity, pressurises to 4.5–9.0 bar and meters flow through a water-cooled dosing valve. Available for Denoxtronic 1, Denoxtronic 2.2 and Mercedes / Scania / Cummins OEM variants.

  • Pressure: 4.5 – 9.0 bar (system generation dependent)
  • Includes: Filter cartridge, reversing valve, temperature sensors
  • Platforms: Denoxtronic 1, Denoxtronic 2.2, BlueTEC, Cummins

Browse dosing pump OE matrix

Consumables & Fittings

Injector & Pump Service Parts

Every injector or pump replacement should ship with its service kit: DEF filter cartridge, inlet strainer, sealing rings and coolant hoses. We stock the ancillary parts that turn a 2-hour swap into a 1-hour swap.

  • Filters: Main DEF filter cartridge & inlet strainer
  • Seals: Crush rings, O-rings, injector copper sealing washer
  • Hoses: DEF supply lines, coolant loop hoses, mounting bolts

Request service kits

Doser Injector & Dosing Module Fitment Matrix (56+ OE Numbers)

Cross-references below are for identification only. Always confirm the full OE number, connector shape and pressure class before ordering — a reference match alone is not a fitment guarantee. Wholesale RFQ on any line.

A. DEF Doser Injectors / Dosing Valves (18 OE)

OEM-Teilenummer Brand / Fleet Spezifikation Vehicle & Engine Application Querverweis Wholesale Action
0444023056 Bosch / Cummins / Freightliner Denoxtronic 2.2 · 12V/24V Multi-hole Cummins ISX15, X15, ISB 6.7L, Freightliner Cascadia, Kenworth, Peterbilt Cross: 4388105, 2888111, 0444023067, 4388106, 2888112, A0001402239
0444023048 Bosch / Mercedes-Benz Denoxtronic 2.2 · 24V Heated Mercedes Actros MP4, Antos, Arocs, Atego, Citaro Euro 6 (OM470 OM471 OM473) Cross: 0444023049, A0001405339, A0001406839, A0001404139, 0444023075
0444023059 Bosch / Volvo / Renault Denoxtronic 2.2 · 24V Heavy Duty Volvo FH4, FH13, FM, FMX, VNL (D11, D13, D16) & Renault Trucks T, K, C DXi Euro 6 Cross: 0444023060, 22391563, 21738899, 21575532, 21332704, 7422391563
0444021021 Bosch / VW / Audi Denoxtronic 3.1/5.1 · 12V EA288 VW Crafter, Passat B8, Tiguan, Golf VII, Audi A4 B8/B9, A6 C7, Q5 2.0 TDI Euro 6 Cross: 0444021022, 04L131113, 04L131113A, 04L131113C, 04L131113J
0444021047 Bosch / Mercedes Sprinter BlueTEC Dosing Valve · 12V Mercedes Sprinter 2500, 3500, Metris, E-Class W212, ML W166 OM642 3.0L OM651 2.1L Cross: 0444021048, A0004900200, 0004900200, A0004900000, A0004900100
0444021034 Bosch / Ford Powerstroke SCR Reductant Doser · 12V Ford F-250, F-350, F-450, F-550 Super Duty 6.7L Powerstroke Diesel (2011-2022+) Cross: 0444021035, BC3Z-5J281-B, BC3Z5J281B, FC3Z-5J281-A, FC3Z5J281A
0444023050 Bosch / MAN Truck & Bus Denoxtronic 2.2 · 24V Heated MAN TGX, TGS, TGM, TGL Euro 6 Commercial Trucks (D0836, D2066, D2676, D3876) Cross: 0444023051, 51.15403-6003, 51.15403-6004, 51.15403-6000, 51154036003
0444023052 Bosch / Scania Denoxtronic 2.2 · 24V Euro 6 Scania R, S, G, P Series Euro 6 Trucks (DC09, DC13 6-Cyl & DC16 V8 Engines) Cross: 0444023053, 2097221, 2472304, 2181966, 2181967, 2245282, 2655852
0444023054 Bosch / DAF / PACCAR PACCAR EAS-3 · 24V Heated DAF XF 106, CF Euro 6, LF Euro 6, Kenworth, Peterbilt with PACCAR MX-11 & MX-13 Cross: 0444023055, 1876082, 1928420, 2037568, 2115714, 2115715, 2115714PE
0444023058 Bosch / Iveco / FPT HI-SCR Dosing Valve · 24V Iveco Stralis Hi-Way, Trakker, Eurocargo, S-Way Euro 6 (Cursor 9/11/13, Tector 7) Cross: 0444023042, 5801479314, 5801397097, 5801740925, 504382372, 47715374
A0001402239 Detroit Diesel / Freightliner One-Box SCR Doser · 12V Freightliner Cascadia, Western Star 49X, Detroit DD13, DD15, DD16 (EPA10, GH14, GH17) Cross: EA0001402039, A0001402039, A0001404439, A0001407439, 0444023056
12662659 GM / Chevrolet / GMC Duramax SCR Doser · 12V Chevy Silverado, GMC Sierra 2500HD/3500HD 6.6L Duramax LML/L5P & Colorado 2.8L Cross: 12642310, 12683073, 12698944, 217-3444, 0444021043, 0444021044
68210106AA Mopar / Dodge Ram Cummins 6.7L SCR Doser · 12V Dodge Ram 2500, 3500, 4500, 5500 Chassis Cab 6.7L Cummins Diesel (2013-2024+) Cross: 68210106AB, 68232648AA, 68157585AA, 0444021036, 0444021037
68249080AA Mopar / Ram / Jeep EcoDiesel 3.0L V6 SCR · 12V Ram 1500 3.0L V6 EcoDiesel & Jeep Grand Cherokee WK2 3.0L EcoDiesel (2014-2021) Cross: 68211213AA, 68376696AA, 0444021049, 0444021050, 68157585AB
18308514448 BMW BluePerformance SCR Dosing Valve · 12V BMW 320d, 520d, 530d, X3, X5 xDrive30d, X6, X7 (B47, N47, N57, B57 Diesel) Cross: 18308514449, 8514448, 8514449, 0444021040, 0444021041, 18308513575
7P0131113 VW / Audi / Porsche 3.0 TDI SCR Doser · 12V VW Touareg 7P 3.0 TDI, Audi Q7 3.0 TDI, Porsche Cayenne 92A 3.0 Diesel Euro 6 Cross: 7P0131113A, 7P0131113C, 95811311300, 0444021033, 0444021032
8-98246411-0 Isuzu Commercial Denoxtronic 2.2 · 24V Heated Isuzu NPR, NQR, NRR, Elf, Forward 4HK1 (5.2L), 6HK1 (7.8L), 4JJ1 (3.0L) Euro 5/6 Cross: 8982464110, 8-98254095-0, 8982540950, 0444023062, 0444023063
454-9549 Caterpillar (CAT) CEM Tier 4 Final · 24V Heavy CAT 320E, 323E, 336E, 950K, 966K, CT660 Trucks, C7.1, C9.3, C13, C15 Engines Cross: 4549549, 388-7554, 3887554, 479-7724, 4797724, 524-1151, 0444023034
6754-71-1210 Komatsu Construction Komatsu SCR · 24V Heated Komatsu Excavators PC200-11, PC210-11, PC300-11, PC360-11, SAA6D107E, SAA6D114E Cross: 6754711210, 600-471-1110, 6004711110, 6754-71-1211, 0444023026
DZ111244 John Deere Agricultural PowerTech PSS · 12V Heated John Deere 6R, 7R, 8R Tractors, S-Series Combines, PowerTech 4.5L 6.8L 9.0L 13.5L Cross: DZ111245, RE552176, DZ100552, SE502758, 0444023038, 0444023039
612640130088 Weichai / Sinotruk HOWO Denoxtronic 2.2 · 24V Heated Weichai WP10, WP12, WP13, Sinotruk HOWO A7/T7H, Shacman F3000/X3000 Euro 5/6 Cross: 1000627546, 612640130089, WG9925540101, A0001402239, 0444023028
BK21-5J281-AB Ford EcoBlue Transit Transit EcoBlue · 12V Heated Ford Transit Mk8 (2014-2023), Transit Custom, Tourneo Custom 2.0L EcoBlue 3.2 TDCi Cross: 1842874, 2014782, BK215J281AB, 0444021046, 0444021045, GK21-5J281-AB
4389140 Cummins CES / Freightliner Underfloor Dosing Pump Unit Cummins ISX15, X15, ISB6.7, ISL9, Freightliner Cascadia, Kenworth, Peterbilt Cross: 4389140RX, 2888111, 4309449, 4309449RX, 2888112, 0444042003
22391565 Volvo / Renault Trucks EM-EU6 Dosing Pump Module Volvo FH4, FM4, FMX, VNL Euro 6 (D11K, D13K) & Renault Trucks T, K, C DXi Cross: 21738899, 21575532, 21332704, 7422391565, 85022215, 0444042013
0444043003Bosch / Volvo / Mack5-hole nozzle · 12V heaterVolvo FH4 / FM4 D11 D13, Mack MP7 MP8Cross: 22391563, 21577030, 21243945RFQ
0444043004Bosch / Volvo / Mack5-hole nozzle · 24VVolvo FH4 / FM4 D11 D13, Mack MP7 MP8Cross: 22391563, 21577030RFQ
0444043087Bosch / Volvo5-hole nozzle · Denoxtronic 2.2Volvo FH4 / FM4 / FE D11 D13Cross: 21332704, 21332711RFQ
0444043088Bosch / Volvo5-hole nozzle · Denoxtronic 2.2Volvo FH4 / FM4 / FE D11 D13Cross: 21332704, 21332711RFQ
22391563VolvoDEF dosing valve · M12 mountVolvo FH4 / FM4 / FE D11 D13Cross: 0444043003, 21577030, 21243945RFQ
21577030VolvoDEF dosing valveVolvo FH4 / FM4 D11 D13Cross: 0444043003, 22391563RFQ
21243945VolvoDEF dosing valveVolvo FH4 / FM4 D11 D13Cross: 0444043003, 22391563RFQ
21332704VolvoDEF dosing valve · Euro 6Volvo FH4 / FM4 D11 D13Cross: 0444043087, 0444043088RFQ
21332711VolvoDEF dosing valve · Euro 6Volvo FH4 / FM4 D11 D13Cross: 0444043087, 0444043088RFQ
A0001400379Mercedes-BenzDEF injector · OM471 OM473Actros MP4 / MP5, ArocsCross: A0001400380RFQ
A0001400380Mercedes-BenzDEF injector · OM471 OM473Actros MP4 / MP5, ArocsCross: A0001400379RFQ
2871881CumminsDEF doser injector · 2.2 systemISX11 / ISX15, Mack MP7 MP8Cross: 2871880, 4993027RFQ
2871880CumminsDEF doser injectorISX / ISLCross: 2871881, 4993027RFQ
1876276ScaniaDEF injector · Euro 6R-series / S-series DC13 DC16Cross: 2009174, 2292717RFQ
2009174ScaniaDEF injector · Euro 6R-series / S-series DC13 DC16Cross: 1876276, 2292717RFQ
2292717ScaniaDEF injector · Euro 6R-series / S-series DC13 DC16Cross: 1876276, 2009174RFQ
5801567096IvecoDEF injector · Cursor 13Stralis Hi-Way / TrakkerCross: 5801567097RFQ
1819798DAFDEF injector · Euro 6XF / CF MX-11 MX-13Cross: 1819799RFQ

B. AdBlue / Urea Dosing Pumps & Doser Modules (38 OE)

OEM-Teilenummer Brand / Fleet Spezifikation Vehicle & Engine Application Querverweis Wholesale Action
0444010004Bosch / DAFDenoxtronic 1 dosing pumpDAF LF / CF / XFCross: 1674660, 1693191RFQ
0444010006Bosch / DAFDenoxtronic 1 dosing pumpDAF LF / CF / XFCross: 1674660, 1738100RFQ
0444010015Bosch / DAFDenoxtronic 1 dosing pumpDAF CF / XF Euro 5Cross: 1746947, 1791500RFQ
0444010017Bosch / DAFDenoxtronic 1 dosing pumpDAF CF / XF Euro 5Cross: 1746947, 1791500RFQ
0444010018Bosch / DAFDenoxtronic 1 dosing pumpDAF CF / XF Euro 5Cross: 1746947, 1791500RFQ
044401011016BoschAdBlue doser moduleEuropean CV (Euro 5)Cross: 0444010033RFQ
1674660DAFAdBlue pump · Denoxtronic 1DAF LF45 / LF55 / CF75 / CF85Cross: 0444010004, 0444010006RFQ
1693191DAFAdBlue pump · Denoxtronic 1DAF LF / CFCross: 0444010004, 0444010006RFQ
1738100DAFAdBlue pump · Denoxtronic 1DAF LF / CF / XFCross: 0444010006, 1674660RFQ
1746947DAFAdBlue pump · Euro 5DAF CF85 / XF105Cross: 0444010015, 0444010017RFQ
1791500DAFAdBlue pump · Euro 5DAF CF / XFCross: 0444010015, 1746947RFQ
1791540DAFAdBlue pump · Euro 5DAF CF / XFCross: 0444010015, 1746947RFQ
1818625DAFAdBlue pump · Euro 6DAF XF / CFCross: 0444010018, 1791540RFQ
0444022060BoschDenoxtronic 2.2 dosing pumpEuropean CV (Euro 6)Cross: 0444022011, 0444022024RFQ
0444022011BoschDenoxtronic 2.2 dosing pumpEuropean CV (Euro 6)Cross: 0444022060, 0444022039RFQ
0444022024BoschDenoxtronic 2.2 dosing pumpEuropean CV (Euro 6)Cross: 0444022060, 0444022051RFQ
0444022039BoschDenoxtronic 2.2 dosing pumpEuropean CV (Euro 6)Cross: 0444022060, 0444023052RFQ
0444022051BoschDenoxtronic 2.2 dosing pumpEuropean CV (Euro 6)Cross: 0444022024, 0444023052RFQ
0444023052BoschDenoxtronic 2.2 dosing pumpEuropean CV (Euro 6)Cross: 0444022051, 0444021034RFQ
0444021034BoschDenoxtronic 2.2 dosing pumpMercedes / European CVCross: 0444023052RFQ
A0001407678Mercedes-BenzAdBlue pump · Actros MP4Actros MP4 (OM471)Cross: 0444021034RFQ
A0001405478Mercedes-BenzAdBlue pumpActros MP4 / MP5Cross: A0001404478RFQ
A0001404478Mercedes-BenzAdBlue pumpActros MP3 / AxorCross: A0001405478RFQ
2140807ScaniaAdBlue pump · Euro 5/6R-series / P-seriesCross: 21575532, 2038755RFQ
21575532ScaniaAdBlue pump · Euro 6R-series / S-seriesCross: 2140807, 21984798RFQ
2038755ScaniaAdBlue pump · Euro 5P-series / G-seriesCross: 2140807RFQ
21984798ScaniaAdBlue pump · Euro 6R-series / S-seriesCross: 21575532RFQ
2655852ScaniaAdBlue pumpL / P / G / R / S / T-seriesCross: 2140807RFQ
5273338Cummins / DAFAdBlue pump · Cummins ISXCummins ISX / ISLCross: 4388105, 2888173RFQ
4388105CumminsAdBlue pump · Cummins ISXCummins ISX / ISLCross: 5273338, 4387657RFQ
2888173CumminsAdBlue pump · Cummins ISLCummins ISL / ISXCross: 5273338, 4388105RFQ
4387657CumminsAdBlue pump · Euro 5/6Cummins ISX / ISLCross: 4388105RFQ
81154036146MANAdBlue pump · TGM/TGL/TGXMAN TGM / TGL / TGX / TGSCross: 51.16101-6105RFQ
51.16101-6105MANAdBlue pumpMAN TGA / TGS / TGXCross: 81154036146RFQ
22851845VolvoAdBlue pump · Euro 6Volvo FH4 / FM4Cross: 21933055, 21713467RFQ
21933055VolvoAdBlue pump · Euro 6Volvo FH4 / FM4Cross: 22851845, 21713467RFQ
21713467VolvoAdBlue pumpVolvo FH / FMCross: 22851845, 21933055RFQ

Hot Vehicle Platforms for Doser Injectors & Urea Pumps

The platforms that generate the most SCR metering-component replacement demand across our distributor network, with the OE numbers we are asked for most often:

Brand / Fleet Hot Vehicle Platforms & Engines Hot OE Numbers
Mercedes-BenzActros MP4 / MP5 (OM471 / OM473), Arocs, Axor, EconicA0001400379, A0001400380, A0001407678, A0001404478, 0444021034
VolvoFH4 / FM4 / FE / FL (D11 / D13 / D8)22391563, 21577030, 21243945, 21332704, 22851845, 21933055
ScaniaR / S / P / G / L / T-series (DC13 / DC16)1876276, 2009174, 2292717, 2140807, 21575532, 2655852
MANTGX / TGS / TGM / TGL / TGA81154036146, 51.16101-6105
DAFXF / CF / LF (MX-11 / MX-13)1674660, 1693191, 1738100, 1746947, 1818625, 1819798
CumminsISX / ISL / ISB (heavy-duty + industrial)2871881, 2871880, 5273338, 4388105, 4387657
MackMP7 / MP8 (Bosch Denoxtronic 2.2)0444043003, 0444043004, 2871881
IvecoStralis / Trakker (Cursor 13)5801567096

Doser Injector & Urea Pump Engineering & Sourcing Guide

1. Crystallization: The #1 Failure Mode

DEF contains 32.5% urea. When exhaust temperature stays too low for complete decomposition, or the engine is keyed off before the nozzle clears, urea crystallises in the orifice. Short-trip urban trucks fail injectors fastest. Flush crystallised units in 50–60°C deionised water — never with metal picks.

2. Pressure Classes Must Match

Bosch Denoxtronic 2.2 runs at 9.0 ± 0.3 bar; Denoxtronic 6.5 at 4.5–5.5 bar. Fitting the wrong generation pump produces pressure fault codes (SPN 4334 / 4337) and premature nozzle wear. Always quote the engine ECU code, not just the badge.

3. Doser vs. Injector — Same Job, Two Parts

“Doser” (Cummins terminology) and “injector” (aftermarket) describe the same exhaust-mounted nozzle. The supply unit is the “dosing pump / doser module”. Quote both part numbers on one RFQ line so we can ship the complete metering set.

4. Bench Test Before Shipping

Every unit passes a 15–25 ml / 60 s flow test and a key-off reversing-valve vacuum check (-0.3 to -0.5 bar). Heaters are cycle-tested at 12V / 24V. Full test data ships with each wholesale order — see our Denoxtronic troubleshooting guide.

Send your doser injector OE numbers today

Full OE number + vehicle year / engine code, and we confirm availability and quote within one working day. Export packaging, EPC documentation and DDP terms available. IATF 16949 certified factory since 2010.

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DEF dosing support

Technical guide and buying support

Understand DEF injector failure symptoms, dosing issues, and replacement information before sending an RFQ.

DEF Urea Injector Guide Send OE Number / RFQ
Buyer qualification

DEF / Urea Injector RFQ checklist

DEF injector matching depends on dosing module design, nozzle layout, OE number, and SCR system application.

Selection checklist

  • DEF injector OE number or dosing valve photo
  • Vehicle / engine application and emission standard
  • Connector, nozzle and mounting details
  • Failure code, crystallization, or dosing issue details

Common symptoms

  • DEF crystallization around nozzle
  • SCR efficiency or dosing fault code
  • AdBlue warning or derate condition
  • Leakage, blockage, or poor spray pattern

What to send for RFQ

  • OE number or dosing module reference
  • Vehicle / SCR system details
  • Sample or bulk order requirement
RFQ-Daten senden

Buyer FAQ

What should I attach for a DEF injector quotation?

A dosing valve label photo, nozzle side photo, connector photo, and vehicle application will improve matching accuracy.

Can SHR Autoparts support sample DEF injector orders?

Yes. Include your sample quantity and destination country so the team can advise availability and delivery options.

Related technical resources

DEF urea injector guides and SCR resources

Use these guides to check DEF dosing symptoms, urea quality, and SCR system context before requesting a quote.

Already have OE number, photos, or target quantity? RFQ-Daten senden
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