A4427 12V 150A Alternator Fits Bmw 116d, Bmw 118d, Bmw 118i

Description

A4427 Replacement Alternator

Choose a replacement by comparing the A4427 alternator and its Lucas reference, LRA04427, with your existing unit. The listed electrical rating is 12V 150A. An alternator maintains battery charge and supplies electrical power while the engine runs. Applications include selected BMW 116d 1.5 Diesel variants.

Key Features and Benefits

• 12V electrical system: match the vehicle voltage before selecting a unit.
• 150A output: compare the listed rating with the original alternator.
• 6-groove pulley: check belt profile and alignment against the existing unit.
• 3 mounting holes: compare the fixing pattern and unit position.
• M8 B+ terminal: check the connection against the original unit.

Compatible Vehicles and Applications

• BMW 116d 1.5 Diesel – selected applications 2019 – (engine code B37C15A).
• BMW 118d 2.0 Diesel – selected applications 2019 – (engine code B47C20B).
• BMW 118i 1.5 Petrol – selected applications 2019 – (engine code B38A15A/B38A15F).
• BMW 120d 2.0 Diesel – selected applications 2019 – (engine code B47C20B).
• BMW 128ti 2.0 Petrol – selected applications 2020 – (engine code B48A20B).
• BMW 216d 1.5 Diesel – selected applications 2018–2021 (engine code B37C15A).

These are selected applications, not the complete fitment list. Check the detailed vehicle compatibility table, engine code and production year, then compare the original unit before ordering.

OE Numbers and Cross-Reference Information

The following cross-reference numbers are associated with A4427. Compare them with the original unit and technical specifications; a number match alone does not establish vehicle compatibility.

104211-9200, LRA04427, LRA4427, DRA2143

The full manufacturer cross-reference and OE listings are available elsewhere on this page. Confirm whether a number is an OE or aftermarket reference when comparing the original unit.

When Should You Replace Your Alternator?

Charging warning lights, repeated loss of battery charge, dim or fluctuating lights and inconsistent electrical operation can indicate a charging-system problem. Battery condition, wiring and the drive belt can produce similar symptoms; arrange a diagnostic check before replacing the alternator.

Why Buy from Sahibs Auto Electrics?

Sahibs Auto Electrics is a UK automotive electrical parts specialist supplying alternators and starter motors. Ask for help identifying A4427 using the existing part number and vehicle details. Check the current condition options and availability before purchase. Buy online for UK delivery or Click & Collect, checking the current order arrangements.

Frequently Asked Questions

Will A4427 fit my BMW 116d?

BMW 116d 1.5 Diesel (2019 -) is a listed application. Confirm the engine code and original unit configuration in the detailed fitment table.

Does A4427 replace Lucas LRA04427?

Lucas LRA04427 is a listed identification reference. Compare it with the original unit and specifications; a cross-reference does not guarantee compatibility by itself.

What specifications are listed for A4427?

The listed details include 12V, 150A output, 6 pulley grooves. Compare the complete specifications on this page with the unit being replaced.

Is A4427 new or remanufactured?

Check the current product condition selection for A4427. Confirm the supplier and availability of the option you want before completing the order.

What should I compare before ordering A4427?

Compare 12V compatibility, 150A output, pulley configuration, mounting points and electrical connections with the original alternator.

Does a battery warning light prove the alternator has failed?

No. Battery, belt, wiring and control faults can also affect charging. Use a charging-system test to establish the cause before ordering a replacement.