Urea (AdBlue) Dosing Module for Jeep Grand Cherokee Ram 1500 Ram ProMaster 1500 / 2500 / 3500 – OE 0444021046

BG 205064 (OE 0444021046): function on the vehicle

Urea (AdBlue) Dosing Module for Jeep Grand Cherokee Ram 1500 Ram ProMaster 1500 / 2500 / 3500 – OE 0444021046 is supplied by BEST GROWTH under part number 205064, cross-referenced to OE 0444021046, as a direct-fit aftermarket def dosing modules. In service it meters DEF under pump pressure through a solenoid injector into the hot exhaust pipe, with a cooling circuit or heat shield keeping the injector body below its thermal limit between doses.

BG 205064 is built to the position defined by its OE application in passenger car and light commercial vehicle service on platforms from Jeep and RAM. 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 Jeep and RAM and OE cross reference

BG 205064 replaces 4 OE references: 0444021046, 05281672AA, 5281672AA and 4627710AA. Always confirm the number printed on the removed part, including any supersession issued by the vehicle manufacturer.

Recorded vehicle coverage for 205064 includes Jeep and RAM, typically on Jeep Grand Cherokee Ram 1500 Ram ProMaster 1500 / 2500 / 3500. 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 0444021046 and quoting the number on your part lets our technical team confirm the variant before despatch.

Symptoms that lead to replacing 0444021046

These complaints bring a vehicle in with the Jeep and RAM def dosing modules under suspicion. None of them prove BG 205064 has failed on its own, which is why the checks below matter before a replacement is ordered.

• SCR low-conversion codes with confirmed in-spec DEF
• coolant or DEF weeping at the module interface
• audible ticking absent during a commanded dose
• deposits inside the mixer restricting exhaust flow
• white urea crystallisation around the dosing point or mixer

Checks before fitting BG 205064

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

• Clean or replace the mixer if crystallisation is already established, or the new module will block too.
• Verify commanded versus actual dosing pressure during an active dose, not at rest.
• 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.

Quality, packaging and ordering 205064

BG 205064 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 0444021046 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 205064 replace OE 0444021046?

Yes. BG 205064 is listed against 0444021046, 05281672AA, 5281672AA and 4627710AA. Confirm the number printed on the removed part and any manufacturer supersession before ordering.

Which vehicles does BG 205064 fit?

Recorded coverage includes Jeep and RAM. 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 205064.