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  7. Alternators & Electrical Components

Alternators & Electrical Components

Stamford, Leroy Somer, Mecc Alte alternators and electrical parts. 36 parts listed with manufacturer part numbers and engine compatibility. Send us your generator model and serial number and we will confirm the correct part before quoting.

Brands in this category: Stamford · Leroy Somer · Mecc Alte · Kutai · Generic

Request a quotation on WhatsAppCall +254 768 860 665

About alternators & electrical components

The alternator end converts mechanical power to electrical power and holds output voltage steady as load changes. Faults here show as voltage that will not build, drifts, or collapses under load — and they are frequently misdiagnosed as engine problems.

What we supply in this category

Automatic Voltage Regulators (AVRs)

Sense output voltage and adjust excitation to hold it steady. The single most commonly replaced electrical part on a generator, and the usual suspect when voltage is high, low or unstable.

Rotating rectifier / diode assemblies

Rectify exciter output on brushless machines. A failed diode typically gives low or unstable output and can take the AVR with it.

Exciter stator and rotor windings

Provide field excitation. Insulation failure here usually follows moisture ingress on sets left standing.

Main stator and rotor assemblies

Generate the output. Rewinding is often more economic than replacement on larger frames.

Bearings and bearing housings

Support the rotor. Noise or vibration from the alternator end is normally a bearing approaching failure.

Anti-condensation heaters

Keep windings above dew point on standby sets, preventing the moisture damage that causes most winding failures in coastal and highland sites.

Symptoms that usually point to this category

  • No output voltage
  • Voltage too high or too low
  • Voltage fluctuating
  • Output collapses under load
  • Noise from the alternator end

Symptoms overlap between systems, so tell us what the set is doing rather than which part you think has failed — we will help identify it before you buy anything.

Alternators & Electrical Components — part numbers, compatibility and indicative pricing
Part No.Description & specificationBrandFitsIndicative priceEnquire
STA-HCI434DStamford HCI434D Alternator - 100kVA
Voltage:
400/230V
Application:
Generator Head
Power rating:
100kVA / 80kW
Stamford100kVA / 80kWKES 285,000KES 270,000 from 1Quote
STA-HCI544DStamford HCI544D Alternator - 150kVA
Voltage:
400/230V
Application:
Generator Head
Power rating:
150kVA / 120kW
Stamford150kVA / 120kWKES 395,000KES 375,000 from 1Quote
STA-UCI274EStamford UCI274E Alternator - 62.5kVA
Voltage:
400/230V
Application:
Generator Head
Power rating:
62.5kVA / 50kW
Stamford62.5kVA / 50kWKES 195,000KES 185,000 from 2Quote
STA-UCI224FStamford UCI224F Alternator - 40kVA
Voltage:
400/230V
Application:
Generator Head
Power rating:
40kVA / 32kW
Stamford40kVA / 32kWKES 145,000KES 135,000 from 2Quote
STA-PI044GStamford PI044G Alternator - 20kVA
Voltage:
400/230V
Application:
Generator Head
Power rating:
20kVA / 16kW
Stamford20kVA / 16kWKES 95,000KES 88,000 from 2Quote
STA-S0L1DStamford S0L1D Alternator - 7.5kVA
Voltage:
230V Single Phase
Application:
Generator Head
Power rating:
7.5kVA / 6kW
Stamford7.5kVA / 6kWKES 45,000KES 42,000 from 4Quote
LSA-42.3L8Leroy Somer LSA 42.3 L8 - 35kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
35kVA / 28kW
Leroy Somer35kVA / 28kWKES 165,000KES 155,000 from 2Quote
LSA-43.2L8Leroy Somer LSA 43.2 L8 - 63kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
63kVA / 50kW
Leroy Somer63kVA / 50kWKES 215,000KES 205,000 from 1Quote
LSA-44.2M8Leroy Somer LSA 44.2 M8 - 110kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
110kVA / 88kW
Leroy Somer110kVA / 88kWKES 325,000KES 310,000 from 1Quote
LSA-46.2M8Leroy Somer LSA 46.2 M8 - 200kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
200kVA / 160kW
Leroy Somer200kVA / 160kWKES 485,000KES 465,000 from 1Quote
LSA-47.2M8Leroy Somer LSA 47.2 M8 - 350kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
350kVA / 280kW
Leroy Somer350kVA / 280kWKES 685,000KES 650,000 from 1Quote
MEC-ECO28-1SMecc Alte ECO28-1S - 25kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
25kVA / 20kW
Mecc Alte25kVA / 20kWKES 125,000KES 115,000 from 2Quote
MEC-ECO32-1SMecc Alte ECO32-1S - 50kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
50kVA / 40kW
Mecc Alte50kVA / 40kWKES 175,000KES 165,000 from 2Quote
MEC-ECO38-1.5LMecc Alte ECO38-1.5L - 88kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
88kVA / 70kW
Mecc Alte88kVA / 70kWKES 265,000KES 250,000 from 1Quote
MEC-ECO40-2LMecc Alte ECO40-2L - 138kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
138kVA / 110kW
Mecc Alte138kVA / 110kWKES 365,000KES 345,000 from 1Quote
MEC-ECO43-2LMecc Alte ECO43-2L - 220kVA
Voltage:
400/230V
Application:
Voltage Regulation
Power rating:
220kVA / 176kW
Mecc Alte220kVA / 176kWKES 495,000KES 475,000 from 1Quote
SX460-AVRAVR SX460 - Stamford Original
Voltage:
190-264V AC Input
Application:
Voltage Regulation
Power rating:
Universal - Up to 150kVA
StamfordStamford BC / UC / S0 / S1 series alternatorsKES 18,500KES 17,000 from 4Quote
SX440-AVRAVR SX440 - Stamford Original
Voltage:
190-264V AC Input
Application:
Voltage Regulation
Power rating:
Universal - Up to 100kVA
StamfordStamford UC / HC series alternatorsKES 15,500KES 14,000 from 4Quote
R438-AVRAVR R438 - Leroy Somer Original
Voltage:
190-264V AC Input
Application:
Voltage Regulation
Power rating:
Universal - Up to 200kVA
Leroy SomerLeroy Somer LSA series alternatorsKES 22,500KES 21,000 from 4Quote
R449-AVRAVR R449 - Leroy Somer Original
Voltage:
190-264V AC Input
Application:
Voltage Regulation
Power rating:
Universal - Up to 350kVA
Leroy SomerLeroy Somer LSA series alternators (PMG-excited)KES 28,500KES 26,500 from 4Quote
UVR6-AVRAVR UVR6 - Mecc Alte Original
Voltage:
190-264V AC Input
Application:
Voltage Regulation
Power rating:
Universal - Up to 100kVA
Mecc AlteMecc Alte alternatorsKES 16,500KES 15,000 from 4Quote
SR7-AVRAVR SR7 - Mecc Alte Original
Voltage:
190-264V AC Input
Application:
Voltage Regulation
Power rating:
Universal - Up to 250kVA
Mecc AlteMecc Alte alternatorsKES 24,500KES 23,000 from 4Quote
MX341Stamford MX341 Automatic Voltage RegulatorStamfordStamford PMG-excited alternatorsOn requestQuote
MX321Stamford MX321 Automatic Voltage RegulatorStamfordStamford PMG-excited alternatorsOn requestQuote
AS440Stamford AS440 Automatic Voltage RegulatorStamfordStamford self-excited alternatorsOn requestQuote
AS480Stamford AS480 Automatic Voltage RegulatorStamfordStamford self-excited alternatorsOn requestQuote
R220Leroy Somer R220 Automatic Voltage RegulatorLeroy SomerLeroy Somer LSA seriesOn requestQuote
R230Leroy Somer R230 Automatic Voltage RegulatorLeroy SomerLeroy Somer LSA series alternatorsOn requestQuote
R250Leroy Somer R250 Automatic Voltage RegulatorLeroy SomerLeroy Somer LSA series alternatorsOn requestQuote
R448Leroy Somer R448 Automatic Voltage RegulatorLeroy SomerLeroy Somer LSA 42.3/43.2/44.2On requestQuote
R726Leroy Somer R726 Automatic Voltage RegulatorLeroy SomerLeroy Somer LSA series alternatorsOn requestQuote
EA05AKutai EA05A Automatic Voltage RegulatorKutaiBrushless self-excited alternatorsOn requestQuote
EA16Kutai EA16 Automatic Voltage RegulatorKutaiBrushless self-excited alternatorsOn requestQuote
GAVR-8AUniversal GAVR-8A Automatic Voltage Regulator 8AGenericBrushless alternators up to 20 kVAOn requestQuote
GAVR-12AUniversal GAVR-12A Automatic Voltage Regulator 12AGenericBrushless self-excited alternators — 12A field ratingOn requestQuote
GAVR-15AUniversal GAVR-15A Automatic Voltage Regulator 15AGenericBrushless self-excited alternators — 15A field ratingOn requestQuote

Prices are indicative and shown to give you a working budget figure. Landed cost moves with exchange rates and duty, so the current price is confirmed when we quote. Availability is also confirmed per enquiry — we do not ask for payment on a part we have not verified. Bulk rates apply on qualifying order quantities.

Other spare-parts categories

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Parts Ordering & Dispatch

Order spare parts from anywhere in Kenya — you do not need to travel to Nairobi

Send us your generator details and we will confirm the correct part, quote it, and arrange dispatch to your town. We also supply parts for projects across East Africa on a cross-border basis.

Dispatch options

Bus & matatu parcel services

The established way to move parts up-country quickly. Parcels are booked to the stage or depot nearest you.

G4S and Wells Fargo courier

Tracked courier options for higher-value items such as controllers, AVRs and electronic modules.

Regional & local courier networks

Regional operators and local parcel networks where they reach your town more directly.

Your own transporter

If you already use a transporter or have staff travelling to Nairobi, we can release the parts to them.

The channel used depends on the part, its value and where it is going, so we agree it with you per order and confirm the cost before anything is sent.

Confirmed orders are dispatched the same day. How quickly they reach you then depends on the transport chosen — commonly a day or two up-country. We will tell you which channel we are using and when the parcel has been sent, so you can track it from your end.

What to send us so we quote the right part

Generator parts vary between builds of the same model, so we verify compatibility from your serial number before quoting rather than assuming from the model name.

  • ✔Generator make and model (for example Cummins C55D5, Perkins 1104A)
  • ✔Engine and alternator serial numbers from the data plate
  • ✔The part number if you have it, or the old part
  • ✔Photographs of the part, the data plate and the controller display
  • ✔Any fault or error code currently showing
  • ✔The town or county the parts should be sent to

Availability: stock changes, and some items are brought in to order. We confirm availability and price against your enquiry before you commit to anything — we do not ask for payment on a part we have not confirmed.

Send part details on WhatsAppCall +254 768 860 665Request a parts quotation
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Generator spare parts by category

1,315 parts across 27 categories, each listed with its manufacturer part number and the engines it fits. Open a category to see the parts and request a quotation.

Browse by engine

Know your engine? Jump straight to the parts that fit it.

Cummins 6BT5.9 (72)Cummins 6BTA5.9 (61)Cummins 4BT3.9 (52)Perkins 1104C-44 (46)Perkins 1106C-E66T (45)Cummins 4BTA3.9 (41)Cummins ISBe6 (40)Cummins ISBe4 (38)Cummins 6CT8.3 (27)Perkins 1104C-44T (25)Cummins 6CTA8.3 (24)Perkins 3054C (22)Perkins 3056E (22)Caterpillar C6.6 (22)Perkins 403C-15 (13)Perkins 404C-22 (13)Cummins QSB6.7 (9)Caterpillar C7.1 (8)Perkins 403D-15 (5)Perkins 404D-22 (5)Cummins QSB4.5 (5)Cummins NT855 (5)Perkins 1104C-E44T (5)

Component needs repair rather than replacement? See workshop repairs and fabrication — radiators, starters, alternators, injectors, turbochargers, engine overhauls, UPS and pump repairs.

Browse by part type

Filters59 partsPistons & Piston Rings33 partsInjectors & Fuel System Components18 partsCooling System Components25 partsAlternators & Electrical Components40 partsElectrical Components & Sensors31 partsControl Panels & Automation45 partsTurbochargers & Air Intake Systems20 partsBearings74 partsValves & Valve Train Components39 partsCrankshafts & Connecting Rods25 partsCylinder Liners & Sleeves13 partsEngine Blocks & Core Components10 partsTiming Gears10 partsOil Pumps & Lubrication System13 partsExhaust System Components15 partsBelts16 partsHoses20 partsBatteries & Battery Accessories100 partsGauges100 partsMounting Hardware & Fasteners150 partsFuel Tanks & Fuel System Accessories80 partsLubricants100 partsTools & Maintenance Equipment100 partsGenerator Enclosures & Accessories78 partsWiring81 partsSafety Equipment & Fire Protection20 parts