A1840 12V 150A Alternator Fits Mercedes-Benz C43 AMG
Price range: £137.25 through £180.99
The A1840 12V 150A Alternator is a replacement charging unit from Sahibs Auto Electrics. Listed applications include selected Mercedes-Benz C43 AMG, Mercedes-Benz CLK430, Mercedes-Benz CLK55 AMG, Mercedes-Benz E430 models. Identification references include Lucas LRA01840, Bosch 123520006, Delco Remy DA1509. Its listed 12V 150A rating provides an electrical matching point for your existing unit. Check the 6-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 A1840 replacement alternator online from Sahibs Auto Electrics for UK delivery or Click & Collect.
Product Specification
| Description | Value |
|---|---|
| AMP | 150 A |
| Volt | 12 V |
| No. of Grooves | 6 qty |
| Pulley Diameter | 50 mm |
| Mounting holes | 2 qty |
| Position | -60° |
| B+ | M8 |
| Insulated Return | No |
| Water cooled | No |
| Vacuum pump | No |
| Start/Stop | No |
| Weight | 7.2 Kg |
Cross Reference
| Reference Number | Brand |
|---|---|
| DYA1840 | Dyno Electrics |
| 401220401 | Euro Car Part |
| A0253 | AS-PL |
| 123520006 | BOSCH |
| 986041520 | BOSCH |
| 1524010 | DAF |
| 1524010R | DAF |
| DA1509 | DELCO |
| DRA0399 | DELCO |
| RAA11400 | DELCO |
| 8EL738211-361 | HELLA |
| 11.204.150 | ISKRA / LETRIKA |
| AAN5309 | ISKRA / LETRIKA |
| IA1044 | ISKRA / LETRIKA |
| 9.44E+11 | MAGNETI MARELLI |
| MRA41520 | MAGNETI MARELLI |
| MG570 | MAHLE |
| 101541002 | MERCEDES |
| 101542902 | MERCEDES |
| 10154290280 | MERCEDES |
| 101545902 | MERCEDES |
| 101547802 | MERCEDES |
| 101548302 | MERCEDES |
| 10154830280 | MERCEDES |
| 111541002 | MERCEDES |
| 11154100280 | MERCEDES |
| A0101541002 | MERCEDES |
| A0101542902 | MERCEDES |
| A010154290280 | MERCEDES |
| A0101545902 | MERCEDES |
| A0101547802 | MERCEDES |
| A0101548302 | MERCEDES |
| A010154830280 | MERCEDES |
| A0111541002 | MERCEDES |
| A011154100280 | MERCEDES |
| ALT4164 | 3EFFE |
| PRAF468 | 3EFFE |
| ANM43740X | ANDEL |
| AEC1845 | AUTOELECTRO |
| CAL10514AS | CASCO |
| 4812 | CEVAM |
| ALT1265 | ELECTROLOG |
| ALT79543 | ELECTROLOG |
| 28-3680 | ELSTOCK |
| CA1845IR | HC PARTS |
| ALB1845 | KRAUF |
| 301206RI | KUHNER |
| LRA01840 | LUCAS |
| LRA1840 | LUCAS |
| 89212647 | POWERMAX |
| 555.526.150.010 | PSH |
| 555.526.150.310 | PSH |
| 555.526.150.311 | PSH |
| 20101415BN | REAL |
| 311077 | RHIAG |
| ALT376 | ROLLCO |
| 2010514 | SANDO |
| A12BH0936A2 | SIDAT |
| ALT125140A | SIOM |
| STX100063 | STARDAX |
| STX100063R | STARDAX |
| STX101401 | STARDAX |
| STX101609 | STARDAX |
| AX1321 | STARLINE |
| 13779N | WAI / TRANSPO |
| 13779R | WAI / TRANSPO |
| 90-15-6378 | WILSON |
| ALT10323 | WOODAUTO |
| MAHMG570 | WOODAUTO |
Vehicle Applications
| Brand | Model | Engine | Engine Code | Series | Model Type | Type | Year |
|---|---|---|---|---|---|---|---|
| MERCEDES-BENZ | C43 AMG | 4.3 (4266ccm) Petrol | 113944 | W202 | 202033 | 1996 - 2000 | |
| MERCEDES-BENZ | C43 AMG | 4.3 (4266ccm) Petrol | 113944 | S202 | 202093 | 1997 - 2000 | |
| MERCEDES-BENZ | CLK430 | 4.3 (4266ccm) Petrol | 113943 | C208 | 208370 | 1997 - 2003 | |
| MERCEDES-BENZ | CLK430 | 4.3 (4266ccm) Petrol | 113943 | C208 | 208470 | 1999 - 2003 | |
| MERCEDES-BENZ | CLK55 AMG | 5.4 (5439ccm) Petrol | 113984 | C208 | 208374 | 1999 - 2002 | |
| MERCEDES-BENZ | E430 | 4.3 (4266ccm) Petrol | 113940 | S210 | 210270 | 1997 - 2003 | |
| MERCEDES-BENZ | E430 | 4.3 (4266ccm) Petrol | 113940 | W210 | 210070 | 1997 - 2002 | |
| MERCEDES-BENZ | E430 | 4.3 (4266ccm) Petrol | 113940 | W210 | 4-Matic | 210083 | 1999 - 2002 |
| MERCEDES-BENZ | E430 | 4.3 (4266ccm) Petrol | 113940 | S210 | 4-Matic | 210283 | 1999 - 2001 |
| MERCEDES-BENZ | E55 AMG | 5.4 (5439ccm) Petrol | 113980 | W210 | 210074 | 1997 - 2002 | |
| MERCEDES-BENZ | E55 AMG | 5.4 (5439ccm) Petrol | 113980 | S210 | 210274 | 1997 - 2003 | |
| MERCEDES-BENZ | S55 AMG | 5.4 (5439ccm) Petrol | 113986 | W220 | Long | 220073/220173 | 1999 - 2002 |
| MERCEDES-BENZ | SL500 | 5.0 (4966ccm) Petrol | 113961 | R129 | 129068 | 1998 - 2002 |
Description
A1840 Replacement Alternator
For a A1840 alternator enquiry, use Lucas reference LRA01840 alongside the vehicle and original unit details. The listed electrical rating is 12V 150A. An alternator maintains battery charge and supplies electrical power while the engine runs. Applications include selected Mercedes-Benz C43 AMG 4.3 Petrol 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.
- 2 mounting holes: compare the fixing pattern and unit position.
- M8 B+ terminal: check the connection against the original unit.
Compatible Vehicles and Applications
- Mercedes-Benz C43 AMG 4.3 Petrol – selected applications 1996–2000 (engine code 113944).
- Mercedes-Benz CLK430 4.3 Petrol – selected applications 1997–2003 (engine code 113943).
- Mercedes-Benz CLK55 AMG 5.4 Petrol – selected applications 1999–2002 (engine code 113984).
- Mercedes-Benz E430 4.3 Petrol – selected applications 1997–2003 (engine code 113940).
- Mercedes-Benz E55 AMG 5.4 Petrol – selected applications 1997–2002 (engine code 113980).
- Mercedes-Benz S55 AMG 5.4 Petrol – selected applications 1999–2002 (engine code 113986).
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 A1840. Compare them with the original unit and technical specifications; a number match alone does not establish vehicle compatibility.
123520006, 986041520, LRA01840, LRA1840, DA1509, DRA0399, RAA11400, MG570, 11.204.150, AAN5309, IA1044, 1524010, 1524010R
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 A1840 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 A1840 fit my Mercedes-Benz C43 AMG?
Mercedes-Benz C43 AMG 4.3 Petrol (1996–2000) is a listed application. Confirm the engine code and original unit configuration in the detailed fitment table.
Does A1840 replace Lucas LRA01840?
Lucas LRA01840 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 A1840?
The listed details include 12V, 150A output, 6 pulley grooves. Compare the complete specifications on this page with the unit being replaced.
Is A1840 new or remanufactured?
Check the current product condition selection for A1840. Confirm the supplier and availability of the option you want before completing the order.
What should I compare before ordering A1840?
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.
