Does BG 205133 replace OE 0444043107?

Yes. BG 205133 is listed against 0444043107, 8-98231-898-0, 8-98231-898-1, 8-98231-898-2 and 8-98231-898-3. Confirm the number printed on the removed part and any manufacturer supersession before ordering.

Which vehicles does BG 205133 fit?

Recorded coverage includes Bosch and Isuzu. 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 205133.

205133

Urea (AdBlue) Dosing Module for Isuzu NPR/NQR/NRR/FTR Truck – OE 0444043107

Urea (AdBlue) Dosing Module (OE 0444043107) for Isuzu NPR/NQR/NRR/FTR Truck SCR/AdBlue aftertreatment systems. Cross-referenced with 4 alternate OE numbers.

BG Part Number: 205133
Category: DEF Dosing Modules
Application: Isuzu NPR/NQR/NRR/FTR Truck
Vehicle Manufacturer: Bosch|Isuzu

Applications

Truck

OE Cross References

0444043107
8-98231-898-0
8-98231-898-1
8-98231-898-2
8-98231-898-3

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Product Description

This urea (adblue) dosing module is designed as a direct-fit replacement for Isuzu NPR/NQR/NRR/FTR Truck. It meters precise doses of AdBlue / Diesel Exhaust Fluid (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: 0444043107. It also cross-references to OE/aftermarket numbers including 8-98231-898-0, 8-98231-898-1, 8-98231-898-2, 8-98231-898-3. 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 alternative to OEM pricing for scheduled SCR system maintenance and repair.

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 205133 (OE 0444043107): function on the vehicle

Urea (AdBlue) Dosing Module for Isuzu NPR/NQR/NRR/FTR Truck – OE 0444043107 is supplied by BEST GROWTH under part number 205133, cross-referenced to OE 0444043107, as a direct-fit aftermarket def dosing modules. In service it is the final actuator of the SCR loop: whatever the controller calculates from the NOx signal is only delivered as accurately as this module sprays it.

BG 205133 is built to the position defined by its OE application in truck service on platforms from Bosch and Isuzu. 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 Bosch and Isuzu and OE cross reference

BG 205133 replaces 5 OE references: 0444043107, 8-98231-898-0, 8-98231-898-1, 8-98231-898-2 and 8-98231-898-3. Always confirm the number printed on the removed part, including any supersession issued by the vehicle manufacturer.

Recorded vehicle coverage for 205133 includes Bosch and Isuzu, typically on Isuzu NPR/NQR/NRR/FTR Truck. Coverage lists are a starting point for identification, not a substitute for checking the OE number on the vehicle.

Where several OE numbers appear against one BG reference, they are supersessions or regional variants of the same specification. Ordering by 0444043107 and quoting the number on your part lets our technical team confirm the variant before despatch.

Symptoms that lead to replacing 0444043107

These complaints bring a vehicle in with the Bosch and Isuzu def dosing modules under suspicion. None of them prove BG 205133 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 205133

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 205133

BG 205133 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 0444043107 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 205133 replace OE 0444043107?: Yes. BG 205133 is listed against 0444043107, 8-98231-898-0, 8-98231-898-1, 8-98231-898-2 and 8-98231-898-3. Confirm the number printed on the removed part and any manufacturer supersession before ordering.
Which vehicles does BG 205133 fit?: Recorded coverage includes Bosch and Isuzu. 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 205133.