Does BG 205205 replace OE 1735780?

Yes. BG 205205 is listed against 1735780. Confirm the number printed on the removed part and any manufacturer supersession before ordering.

Which vehicles does BG 205205 fit?

Recorded coverage includes Universal and Bosch. It is supplied as a direct-fit aftermarket def dosing modules. Adaptation, reset or relearn procedures required by the vehicle manufacturer still apply after installation.

Does this fault code always mean the def dosing modules has failed?

No. Exhaust leaks, wiring and connector damage, reductant quality, dosing performance and upstream engine faults can all produce the same codes. Validate those inputs before replacing BG 205205.

205205

Universal SCR Urea Injection Nozzle – OE 1735780

Universal SCR urea injection nozzle (OE 1735780) for AdBlue/DEF dosing systems, suited to multiple truck, bus and off-road diesel engine brands using compatible SCR dosing modules.

BG Part Number: 205205
Category: DEF Dosing Modules
Application: Universal SCR Injection Nozzle
Vehicle Manufacturer: Universal / Bosch

OE Cross References

1735780

Review Inquiry Basket Ask a Technical Question

Product Description

This universal SCR urea injection nozzle is designed for AdBlue / Diesel Exhaust Fluid (DEF) dosing systems used across multiple diesel engine brands and platforms, rather than a single OE application. It meters precise doses of AdBlue/DEF into the exhaust stream as part of the vehicle's Selective Catalytic Reduction (SCR) aftertreatment system, converting NOx emissions into harmless nitrogen and water vapor to help the engine meet its emission standard. Primary OE reference number: 1735780. Manufactured by BG Brand (Wenzhou Best Growth IE Co., Ltd.) to OE-equivalent fit, form and function, this part is tested for reliable sealing and dosing accuracy, offering fleets, workshops and parts distributors a quality-assured universal-fit alternative to OEM pricing for scheduled SCR system maintenance and repair. Please confirm exact vehicle/engine compatibility against your dosing module housing before ordering.

Vehicle manufacturer names, logos and OE reference numbers are used for identification and compatibility purposes only. BEST GROWTH products are independent aftermarket products and are not manufactured, sponsored or endorsed by the respective vehicle manufacturers.

BG 205205 (OE 1735780): function on the vehicle

Universal SCR Urea Injection Nozzle – OE 1735780 is supplied by BEST GROWTH under part number 205205, cross-referenced to OE 1735780, as a direct-fit aftermarket def dosing modules. In service it atomizes diesel exhaust fluid into the exhaust stream ahead of the SCR catalyst. Spray quality, dosing quantity and purge behaviour decide whether urea converts to ammonia or builds solid deposits.

BG 205205 is built to the position defined by its OE application on platforms from Universal and Bosch. Position, calibration and connector layout are part of the specification, so a part that physically fits is not automatically the correct part.

A dosing module rarely fails alone. Deposits are usually evidence of a temperature or mixing problem that will destroy the replacement unless it is corrected.

Fitment for Universal and Bosch and OE cross reference

BG 205205 replaces 1 OE reference: 1735780. Always confirm the number printed on the removed part, including any supersession issued by the vehicle manufacturer.

Recorded vehicle coverage for 205205 includes Universal and Bosch, typically on Universal SCR Injection Nozzle. Coverage lists are a starting point for identification, not a substitute for checking the OE number on the vehicle.

Quote the number printed on your part with the engine code when you enquire; a single-reference part is the most common source of ordering errors when a platform received a mid-life update.

Symptoms that lead to replacing 1735780

These complaints bring a vehicle in with the Universal and Bosch def dosing modules under suspicion. None of them prove BG 205205 has failed on its own, which is why the checks below matter before a replacement is ordered.

audible ticking absent during a commanded dose
deposits inside the mixer restricting exhaust flow
white urea crystallisation around the dosing point or mixer
low dosing pressure or pressure-build-up fault codes
SCR low-conversion codes with confirmed in-spec DEF

Checks before fitting BG 205205

Aftertreatment faults are usually system faults. Working through these checks prevents a repeat failure after the new def dosing modules is fitted.

Run a quantity test and inspect the spray pattern rather than judging the injector by appearance.
Confirm the purge cycle completes at shutdown; skipped purges cause freeze damage.
Review exhaust temperature history — cold-side dosing wets the wall and forms deposits.
Check the cooling circuit or heat shield is intact before fitting a replacement.
Clean or replace the mixer if crystallisation is already established, or the new module will block too.

Quality, packaging and ordering 205205

BG 205205 is manufactured and tested to aftermarket replacement standards, with electrical, leakage and functional testing carried out before packing. Bulk and retail packaging, private-label cartons and customer-specific labelling are available for distributors and workshop groups.

Send OE 1735780 or the number printed on your part, the engine code and the vehicle identification number with your enquiry, and our technical team will confirm the correct reference, current stock position and lead time before you commit to an order.

Frequently asked questions

Does BG 205205 replace OE 1735780?: Yes. BG 205205 is listed against 1735780. Confirm the number printed on the removed part and any manufacturer supersession before ordering.
Which vehicles does BG 205205 fit?: Recorded coverage includes Universal and Bosch. It is supplied as a direct-fit aftermarket def dosing modules. Adaptation, reset or relearn procedures required by the vehicle manufacturer still apply after installation.
Does this fault code always mean the def dosing modules has failed?: No. Exhaust leaks, wiring and connector damage, reductant quality, dosing performance and upstream engine faults can all produce the same codes. Validate those inputs before replacing BG 205205.