Skip to product information
1 of 5

Alternator for Perkins, Caterpillar, Kioti & Land Rover 12V 85A Lucas A115

Alternator for Perkins, Caterpillar, Kioti & Land Rover 12V 85A Lucas A115

SKU:400-41006

Regular price £203.30 GBP
Regular price Sale price £203.30 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

Free shipping over £150. Terms apply

Alternator for Perkins, Caterpillar, Kioti & Land Rover

12-Volt 85 Amp IR/IF - Lucas A115 Family

This alternator is built to OEM specifications as a direct fit-and-function replacement for the Lucas A115 family unit fitted to Perkins diesel engines and the machines built around them - Caterpillar 216B to 242B skid steer loaders, Kioti DK and DX series tractors, JCB plant, and the 3.9 litre V8 Land Rover Defender and Range Rover. It bolts onto the original mounting points using the factory 2-groove pulley.

It is a 12-volt, 85-amp unit with an internal regulator (IR) and internal fan (IF), running on a 2-V pulley designed for a 13mm belt width. It is negative earth, with an M6 x 1.00 B+ output stud and M5 x 0.8 D+ and W terminals. Mounting is via one M8 x 1.25 threaded hole and two unthreaded holes, with a 14mm mounting ear thickness.

Key Features

  • 12-volt, 85-amp output
  • Lucas A115 family pattern alternator
  • Internal regulator (IR), internal fan (IF)
  • 2-V pulley, 13mm belt width
  • B+ M6 x 1.00, D+ and W terminals M5 x 0.8
  • Negative earth
  • 12-month warranty as standard

Technical Specs

Specification Detail
Voltage 12V
Amperage 85A
Rotation Clockwise (CW)
Regulator Internal (IR)
Fan Type Internal (IF)
Pulley 2-V, 13mm belt width
Terminals B+ M6 x 1.00, D+ M5 x 0.8, W M5 x 0.8
Mounting M8 x 1.25 threaded hole plus two unthreaded holes, 14mm ear thickness
Polarity Negative earth
Family Lucas A115
Manufacturer Reference Lester 12550 / 12735 / 12736 / 12738

Vehicle Fitment Guide

Years shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.

Make & Model Years
Caterpillar 216B, 232B, 242B (3024 engine) and 226B (3024C engine) Not specified - confirm against your OEM part number
Kioti DK65S, DK65SC (3-165 diesel) Not specified - confirm against your OEM part number
Kioti DK75, DX7510, DX9010 (4-269 diesel) and DK90 Not specified - confirm against your OEM part number
Land Rover Defender 110, 3.9L V8 1993
Land Rover Defender 90, 3.9L V8 1994-1995
Land Rover Range Rover, 3.9L V8 1993-1995
JCB and JLG plant with Perkins engines Not specified - confirm against your OEM part number

OEM Part Number Cross Reference

Aftermarket replacement. OEM part numbers are listed for reference only.

Part Number Manufacturer / Brand
18504622, 185046500, 185046501, 185046522, 185046523, 2871A156, 2871A168, 2871A300, 2871A301, 2871A302, 2871A303, 2871A306, 2871A308, 3943494, 63377460, 63377462, A2871156, TPN758, TPN771 Perkins
225-3141, 225-3143, 247-9912, 298-5109, 301-5158, 305-3661, 339-7766, 349-1369, 569-3474 Caterpillar
333/G6477, 714/22500, 714/32200, 714/40152, 714/40153, 714/40154, 71440154 JCB
24344, 24479, 24480, 24481, 54022466, 54022468, 54022524, 54022606, LRA03282, LRA03302, LRB00291, LRB00435 Lucas Electric
63320319, 63321466, 63340009, 63377460, 63377461, 63377462, MAN7460, MAN7461, MAN7462 Marelli
102211-8160, 102211-8170, 102211-8180, 102211-8181 Denso
7029783 (JLG), 70001417 (JLG/Gradall) JLG
DRA0028, DRA0029 Delco
IA1204, MG560 Mahle / Letrika (Iskra) / Arrowhead
439955 Valeo
12550, 12735, 12736, 12738 Lester

Frequently Asked Questions

Will this alternator fit without modification?

Yes, it is a direct OEM-spec replacement matching the original mounting, pulley and output of the Lucas A115 unit it replaces.

What's included?

One new alternator unit, ready to fit.

How do I confirm this is the right unit for my machine?

Check the number stamped on your original alternator against the cross reference table above - common ones are Perkins 2871A300, TPN758, JCB 714/40152 and Lucas 24479 or 24481.

How do I know my old alternator has failed?

Signs include a battery that won't hold charge, a charge warning light, or dimming lights at idle.

What belt width does this unit take?

A 2-groove pulley designed for a 13mm belt width.

Dispatched from the UK · 12-month warranty · Fitment support from our technical team
View full details
Shipping calculated at checkout. Free shipping over £150. Terms apply