Does BG 205065 replace OE 0 444 021 053?

Yes. BG 205065 is listed against 0 444 021 053, LR071393 and GH22 189E3AA. Confirm the number printed on the removed part and any manufacturer supersession before ordering.

Which vehicles does BG 205065 fit?

Recorded coverage includes Land Rover. 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 205065.

205065

Urea (AdBlue) Dosing Module for LAND ROVER DISCOVERY – OE 0 444 021 053

Urea (AdBlue) Dosing Module (OE 0 444 021 053) for LAND ROVER DISCOVERY SCR/AdBlue aftertreatment systems. Cross-referenced with 2 alternate OE numbers.

BG Part Number: 205065
Category: DEF Dosing Modules
Application: LAND ROVER DISCOVERY
Vehicle Manufacturer: LAND ROVER

Applications

Passenger Car

OE Cross References

0 444 021 053
LR071393
GH22 189E3AA

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Product Description

This urea (adblue) dosing module is designed as a direct-fit replacement for LAND ROVER DISCOVERY. 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: 0 444 021 053. It also cross-references to OE/aftermarket numbers including LR071393, GH22 189E3AA. 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 workshops, parts distributors and vehicle owners 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 205065 (OE 0 444 021 053): function on the vehicle

Urea (AdBlue) Dosing Module for LAND ROVER DISCOVERY – OE 0 444 021 053 is supplied by BEST GROWTH under part number 205065, cross-referenced to OE 0 444 021 053, 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 205065 is built to the position defined by its OE application in passenger car service on the platform from Land Rover. 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 Land Rover and OE cross reference

BG 205065 replaces 3 OE references: 0 444 021 053, LR071393 and GH22 189E3AA. Always confirm the number printed on the removed part, including any supersession issued by the vehicle manufacturer.

Recorded vehicle coverage for 205065 includes Land Rover, typically on LAND ROVER DISCOVERY. 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 0 444 021 053 and quoting the number on your part lets our technical team confirm the variant before despatch.

Symptoms that lead to replacing 0 444 021 053

These complaints bring a vehicle in with the Land Rover def dosing modules under suspicion. None of them prove BG 205065 has failed on its own, which is why the checks below matter before a replacement is ordered.

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
coolant or DEF weeping at the module interface
audible ticking absent during a commanded dose

Checks before fitting BG 205065

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 205065

BG 205065 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 0 444 021 053 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 205065 replace OE 0 444 021 053?: Yes. BG 205065 is listed against 0 444 021 053, LR071393 and GH22 189E3AA. Confirm the number printed on the removed part and any manufacturer supersession before ordering.
Which vehicles does BG 205065 fit?: Recorded coverage includes Land Rover. 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 205065.