A4309 12V 170A Alternator Fits Bmw 135i, Bmw 135i Coupe, Bmw 335i
Price range: £181.32 through £244.09
Sahibs A4309 is a replacement alternator with a listed 12V 170A rating. Listed applications include selected BMW 135i, BMW 135i Coupe, BMW 335i, BMW 335i Coupe models. Identification references include Lucas LRA04309, Denso 210801090, Delco Remy DRA2175. Its listed 12V 170A rating provides an electrical matching point for your existing unit. Check the 7-groove pulley, connections and mounting arrangement. Check the current condition options and availability before purchase. Match the exact engine and production details before ordering. Buy your A4309 replacement alternator online from Sahibs Auto Electrics for UK delivery or Click & Collect.
Product Specification
| Description | Value |
|---|---|
| AMP | 170 A |
| Volt | 12 V |
| No. of Grooves | 7 qty |
| Pulley Diameter | 49 mm |
| Mounting holes | 4 qty |
| B+ | M8 |
| Insulated Return | No |
| Water cooled | No |
| Vacuum pump | No |
| Start/Stop | No |
| Weight | 7.3 Kg |
Cross Reference
| Reference Number | Brand |
|---|---|
| DYA4309 | Dyno Electrics |
| 210801090 | Denso |
| 0986CR6232 | Bosch Exchange |
| 0986UR6232 | Bosch Exchange |
| 1042106520 | Denso |
| 1042106521 | Denso |
| 1042106522 | Denso |
| 11753 | WAI |
| 11753N | WAI |
| 12317626153 | BMW |
| 12317626155 | BMW |
| 20201111 | AES |
| 215550170 | PSH |
| 7626153 | Fiat Group |
| 7626155 | Fiat Group |
| AL9451X | Bosch (USA) |
| ALT30690 | Wood Auto |
| DAN1133 | Denso |
| DRA2175 | Delco Remy |
| LRA04309 | Lucas |
| LRA4309 | Lucas |
| WOOALT30690 | Wood Auto |
Vehicle Applications
| Brand | Model | Engine | Engine Code | Series | Model Type | Type | Year |
|---|---|---|---|---|---|---|---|
| BMW | 135i | 3.0 (2979ccm) Petrol | N54B30A/N55B30A | E88 | 2012 - 2013 | ||
| BMW | 135i | 3.0 (2979ccm) Petrol | N55B30A | E88 | 2008 - 2013 | ||
| BMW | 135i Coupe | 3.0 (2979ccm) Petrol | N54B30A/N55B30A | E82 | 2007 - 2013 | ||
| BMW | 135i Coupe | 3.0 (2979ccm) Petrol | N55B30A | E82 | 2007 - 2013 | ||
| BMW | 335i | 3.0 (2979ccm) Petrol | N54B30A/N55B30A | E93 | 2006 - 2013 | ||
| BMW | 335i | 3.0 (2979ccm) Petrol | N54B30A/N55B30A | E91 | Touring | 2006 - 2012 | |
| BMW | 335i | 3.0 (2979ccm) Petrol | N54B30A/N55B30A | E91 | xDrive Touring | 2008 - 2012 | |
| BMW | 335i Coupe | 3.0 (2979ccm) Petrol | N54B30A/N55B30A | E92 | 2006 - 2013 | ||
| BMW | 335i Coupe | 3.0 (2979ccm) Petrol | N54B30A/N55B30A | E92 | xDrive | 2007 - 2013 | |
| BMW | 335i Coupe | 3.0 (2979ccm) Petrol | N54B30A/N55B30A | E92 | xDrive | 2008 - 2013 |
Description
A4309 Replacement Alternator
The A4309 alternator is a replacement unit identified by Lucas reference LRA04309. The listed electrical rating is 12V 170A. An alternator maintains battery charge and supplies electrical power while the engine runs. Applications include selected BMW 135i 3.0 Petrol variants.
Key Features and Benefits
- 12V electrical system: match the vehicle voltage before selecting a unit.
- 170A output: compare the listed rating with the original alternator.
- 7-groove pulley: check belt profile and alignment against the existing unit.
- 4 mounting holes: compare the fixing pattern and unit position.
- M8 B+ terminal: check the connection against the original unit.
Compatible Vehicles and Applications
- BMW 135i 3.0 Petrol – selected applications 2012–2013 (engine code N54B30A/N55B30A).
- BMW 135i Coupe 3.0 Petrol – selected applications 2007–2013 (engine code N54B30A/N55B30A).
- BMW 335i 3.0 Petrol – selected applications 2006–2013 (engine code N54B30A/N55B30A).
- BMW 335i Coupe 3.0 Petrol – selected applications 2006–2013 (engine code N54B30A/N55B30A).
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 A4309. Compare them with the original unit and technical specifications; a number match alone does not establish vehicle compatibility.
0986CR6232, 0986UR6232, 210801090, 1042106520, 1042106521, 1042106522, DAN1133, LRA04309, LRA4309, DRA2175
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 A4309 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 A4309 fit my BMW 135i?
BMW 135i 3.0 Petrol (2012–2013) is a listed application. Confirm the engine code and original unit configuration in the detailed fitment table.
Does A4309 replace Lucas LRA04309?
Lucas LRA04309 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 A4309?
The listed details include 12V, 170A output, 7 pulley grooves. Compare the complete specifications on this page with the unit being replaced.
Is A4309 new or remanufactured?
Check the current product condition selection for A4309. Confirm the supplier and availability of the option you want before completing the order.
What should I compare before ordering A4309?
Compare 12V compatibility, 170A 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.
