A1789 12V 100A Alternator Fits Chevrolet G10 Chevy
Price range: £118.34 through £152.61
Compare the A1789 12V 100A alternator from Sahibs Auto Electrics with the unit currently fitted. Listed applications include selected Chevrolet G10 Chevy, Chevrolet G20 Chevy, Chevrolet G30 Chevy models. Identification references include Lucas LRA01789, Delco Remy 10463308. Its listed 12V 100A rating provides an electrical matching point for your existing unit. Check the single-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 A1789 replacement alternator online from Sahibs Auto Electrics for UK delivery or Click & Collect.
Product Specification
| Description | Value |
|---|---|
| AMP | 100 A |
| Volt | 12 V |
| No. of Grooves | 1 qty |
| Pulley Diameter | 66 mm |
| Mounting holes | 3 qty |
| Position | 180° |
| B+ | M6 |
| Insulated Return | No |
| Water cooled | No |
| Vacuum pump | No |
| Start/Stop | No |
| Weight | 7.02 Kg |
Cross Reference
| Reference Number | Brand |
|---|---|
| DYA1789 | Dyno Electrics |
| 10463308 | Delco Remy |
| 1101020 | Delco Remy |
| 1101050 | Delco Remy |
| 1101109 | Delco Remy |
| 1101178 | Delco Remy |
| 1105637 | Delco Remy |
| 112448 | HC-Cargo |
| 1176702DR | WAI |
| 201231 | WAI |
| 2132X10463384 | Mack |
| 3134786 | Volvo |
| 3134787 | Volvo |
| 3604669 | Cummins |
| 7157M | WAI |
| 7157MN | WAI |
| 7157MR | WAI |
| 835047100 | PSH |
| 90013108 | Wilson |
| A1100 | Dixie |
| ALT40044 | Wood Auto |
| LRA01789 | Lucas |
| LRA1789 | Lucas |
| WOOALT40044 | Wood Auto |
Vehicle Applications
| Brand | Model | Engine | Engine Code | Series | Model Type | Type | Year |
|---|---|---|---|---|---|---|---|
| CHEVROLET | G10 Chevy | 5.7 (5733ccm) Petrol | L05 | Standard Passenger Van | G | 1986 - 1993 | |
| CHEVROLET | G10 Chevy | 5.7 (5733ccm) Petrol | L05 | Standard Cargo Van | G | 1986 - 1993 | |
| CHEVROLET | G20 Chevy | 5.7 (5733ccm) Petrol | L05 | Standard Cargo Van | G | 1989 - 1995 | |
| CHEVROLET | G20 Chevy | 5.7 (5733ccm) Petrol | L05 | Standard Passenger Van | G | 1989 - 1993 | |
| CHEVROLET | G30 Chevy | 5.7 (5733ccm) Petrol | L05 | Standard Cargo Van | G | 1986 - 1993 | |
| CHEVROLET | G30 Chevy | 5.7 (5733ccm) Petrol | L05 | Standard Passenger Van | G | 1987 - 1993 |
Description
A1789 Replacement Alternator
For a A1789 alternator enquiry, use Lucas reference LRA01789 alongside the vehicle and original unit details. The listed electrical rating is 12V 100A. An alternator maintains battery charge and supplies electrical power while the engine runs. Applications include selected Chevrolet G10 Chevy 5.7 Petrol variants.
Key Features and Benefits
- 12V electrical system: match the vehicle voltage before selecting a unit.
- 100A output: compare the listed rating with the original alternator.
- Single-groove pulley: check belt profile and alignment against the existing unit.
- 3 mounting holes: compare the fixing pattern and unit position.
- M6 B+ terminal: check the connection against the original unit.
Compatible Vehicles and Applications
- Chevrolet G10 Chevy 5.7 Petrol – selected applications 1986–1993 (engine code L05).
- Chevrolet G20 Chevy 5.7 Petrol – selected applications 1989–1995 (engine code L05).
- Chevrolet G30 Chevy 5.7 Petrol – selected applications 1986–1993 (engine code L05).
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 A1789. Compare them with the original unit and technical specifications; a number match alone does not establish vehicle compatibility.
LRA01789, LRA1789, 10463308, 1101020, 1101050, 1101109, 1101178, 1105637
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 A1789 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 A1789 fit my Chevrolet G10 Chevy?
Chevrolet G10 Chevy 5.7 Petrol (1986–1993) is a listed application. Confirm the engine code and original unit configuration in the detailed fitment table.
Does A1789 replace Lucas LRA01789?
Lucas LRA01789 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 A1789?
The listed details include 12V, 100A output, 1 pulley groove. Compare the complete specifications on this page with the unit being replaced.
Is A1789 new or remanufactured?
Check the current product condition selection for A1789. Confirm the supplier and availability of the option you want before completing the order.
What should I compare before ordering A1789?
Compare 12V compatibility, 100A 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.
