A0100 12V 34A Alternator Fits Austin Mini, MG B, Ford Transit

Description

A0100 Replacement Alternator

The A0100 alternator is a replacement unit identified by Lucas reference LRA00100. The listed electrical rating is 12V 34A. An alternator maintains battery charge and supplies electrical power while the engine runs. Applications include selected Austin Mini 0.8 Petrol variants.

Key Features and Benefits

• 12V electrical system: match the vehicle voltage before selecting a unit.
• 34A output: compare the listed rating with the original alternator.
• Single-groove pulley: check belt profile and alignment against the existing unit.
• 45mm pulley diameter: compare pulley dimensions and installation clearance.

Compatible Vehicles and Applications

• Austin Mini 0.8 Petrol – selected applications 1972–1980 (engine code 8A).
• MG B 1.8 Petrol – selected applications 1962–1980 (engine code 18G/18GA/18GB/18GD/18GG).
• Morris Marina 1.3 Petrol – selected applications 1970–1975 (engine code A).
• Ford Transit 100 2.4 Diesel – selected applications 1978–1985 (engine code J(G)).
• Austin Metro 1.0 Petrol – selected applications 1980–1990 (engine code 10HL/99H/99HA65P).
• Triumph TR6 2.5 Petrol – selected applications 1969–1974 (engine code CR1H).

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 A0100. Compare them with the original unit and technical specifications; a number match alone does not establish vehicle compatibility.

120339502, 120339503, 120339504, 120339509, 120339510, 120489084, 120489318, 986031661, 986031691, 986031701, 986044581, 9120331901, 9120331913, 436140, LRA00100, 17.ACR, 23548, 23548A, 23565, 23566, 23569, 23570, 23573, 23584, 23590, 23593, 23595, 23598, 23602, 23603, 23606, 23610, 23612, 23625, 23627, 23635, 23640, 23642, 23643, 23647, 23648, 23649, 23650, 23651, 23658, 23660, 23662, 23664, 23674, 23678, 23679, 23685, 23695, 23703, 23708, 23711, 23713, 23715, 23716, 23717, 23718, 23726, 23730, 23731, 23734, 23735, 23742, 23743, 23745, 23747, 23748, 23750, 23753, 23755, 23761, 23762, 23769, 23774, 23777, 23778, 23782, 23795, 23796, 23797, 23802, 23804, 23805, 23816, 23821, 23823, 23824, 23825, 23830, 23844, 23845, 23855, 23920, 23962, 24026, 24052, 24061, 24082, 24095, 24179, 54021917, 54021918, LRA00106, LRA00274, LRA100, LRA106, LRA274, AH2040B14, AH2140B14, 20130142, 20130192, 858882, MG 372, AAG1111, 1504563, 1537179, 5003896, 5007058, 5007063, 5010555, 69EB10346AD, 703F10346AA, 71BB10300AA, 74DB10436A, 76BB10300EA, 77FB10300FA, 77FB10300FB, 81AB10300SA, D2000E10346A, R78FB10346AC, GEU205, GEU207, GEU211, GEU221, GEU2211, GXE2211, GXE8211, PRC2667, PRC4285, 71804286, 75066038, 6005003145, 6005007750, 6005700083, 7700010614, 7700017032, 7701028801, 91008979, 2871611, 2871613, 2871615, 2871619, 2871A103, 2871A105, 2871A107, 2871A116, 2871A118, 2871A132, 2871A134, 2871A136, 2873179, 1516502R, 1516520R, 3637261R91, 217772, 217988, 219267

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 A0100 using the existing part number and vehicle details. New and remanufactured options are available; check the current selection. Buy online for UK delivery or Click & Collect, checking the current order arrangements.

Frequently Asked Questions

Will A0100 fit my Austin Mini?

Austin Mini 0.8 Petrol (1972–1980) is a listed application. Confirm the engine code and original unit configuration in the detailed fitment table.

Does A0100 replace Lucas LRA00100?

Lucas LRA00100 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 A0100?

The listed details include 12V, 34A output, 1 pulley groove. Compare the complete specifications on this page with the unit being replaced.

Is A0100 new or remanufactured?

New and remanufactured options are available for A0100. Check the current selection for the supplier, price and availability of the option you require.

What should I compare before ordering A0100?

Compare 12V compatibility, 34A 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.