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  5. Spare Parts
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  7. Pistons & Piston Rings

Pistons & Piston Rings

Complete piston assemblies and ring sets for all engine brands. 33 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: Cummins · Perkins · Caterpillar · Volvo · Honda · Lister Petter · Iveco · MAN · Weichai

Request a quotation on WhatsAppCall +254 768 860 665

About pistons & piston rings

Pistons, rings and their associated components are the wearing heart of the engine. They are replaced during overhaul, after overheating, or when oil consumption and blow-by show the rings are no longer sealing. Correct grade and oversize matter — these are not interchangeable between builds of the same model.

What we supply in this category

Pistons (standard and oversize)

Supplied to match the bore after reboring. Oversize selection must follow the machining actually done to the block.

Piston ring sets

Compression and oil-control rings. Worn rings show as blow-by at the breather, rising oil consumption and blue smoke.

Gudgeon (wrist) pins and circlips

Locate the piston to the connecting rod. Replaced with pistons as a matter of course.

Piston cooling nozzles

Spray oil to the piston underside on higher-output engines; a blocked or bent nozzle causes localised piston overheating.

Symptoms that usually point to this category

  • Blue exhaust smoke
  • High oil consumption
  • Excessive crankcase breather blow-by
  • Loss of compression

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.

Pistons & Piston Rings — part numbers, compatibility and indicative pricing
Part No.Description & specificationBrandFitsIndicative priceEnquire
3802263Piston Kit - Cummins 6BT5.9
Bore:
102mm
Material:
Aluminum Alloy
Compression height:
78mm
Pin diameter:
38mm
Cummins6BT5.9, 6BTA5.9, 6BTAA5.9KES 15,500KES 14,000 from 6Quote
3802429Piston Kit - Cummins 4BT3.9
Bore:
102mm
Material:
Aluminum Alloy
Compression height:
78mm
Pin diameter:
38mm
Cummins4BT3.9, 4BTA3.9KES 14,500KES 13,000 from 4Quote
3804905Piston Kit - Cummins 6CT8.3
Bore:
114mm
Material:
Aluminum Alloy
Compression height:
85mm
Pin diameter:
42mm
Cummins6CT8.3, 6CTA8.3, 6CTAA8.3KES 18,500KES 17,000 from 6Quote
4089968Piston Kit - Cummins ISBe
Bore:
107mm
Material:
Aluminum Alloy
Compression height:
80mm
Pin diameter:
40mm
CumminsISBe4, ISBe6, QSB4.5, QSB6.7KES 17,500KES 16,000 from 6Quote
U5MK8269Piston Kit - Perkins 1104C
Bore:
105mm
Material:
Aluminum Alloy
Compression height:
75.5mm
Pin diameter:
42mm
Perkins1104C-44, 1104C-44T, 1104C-E44TKES 16,500KES 15,000 from 4Quote
U5MW0211Piston Kit - Perkins 1106C
Bore:
105mm
Material:
Aluminum Alloy
Compression height:
75.5mm
Pin diameter:
42mm
Perkins1106C-E66T, 1106C-70T, 1106D-70TKES 17,000KES 15,500 from 6Quote
4115P015Piston Kit - Perkins 403/404 Series
Bore:
84mm
Material:
Aluminum Alloy
Compression height:
65mm
Pin diameter:
32mm
Perkins403C-15, 403D-15, 404C-22, 404D-22KES 12,500KES 11,000 from 4Quote
3066209Piston Kit - Perkins 1103 Series
Bore:
105mm
Material:
Aluminum Alloy
Compression height:
75mm
Pin diameter:
41mm
Perkins1103A-33T, 1103C-33T, 1103D-33TKES 15,500KES 14,000 from 3Quote
265-0772Piston Kit - CAT 3054/3056
Bore:
94mm
Material:
Aluminum Alloy
Compression height:
72mm
Pin diameter:
38mm
Caterpillar3054C, 3054E, 3056E, C4.4KES 18,500KES 17,000 from 4Quote
320-0912Piston Kit - CAT C6.6
Bore:
105mm
Material:
Aluminum Alloy
Compression height:
78mm
Pin diameter:
42mm
CaterpillarC6.6, C6.6T, C6.6TAKES 21,500KES 20,000 from 6Quote
353-6147Piston Kit - CAT C7.1
Bore:
110mm
Material:
Aluminum Alloy
Compression height:
82mm
Pin diameter:
45mm
CaterpillarC7.1, C7.1TKES 24,500KES 23,000 from 6Quote
20714796Piston Kit - Volvo Penta D5
Bore:
102mm
Material:
Aluminum Alloy
Compression height:
75mm
Pin diameter:
40mm
VolvoD5A, D5B, D7A, D7BKES 19,500KES 18,000 from 5Quote
13101-ZE3-000Piston Kit - Honda GX390
Bore:
88mm
Material:
Aluminum Alloy
Compression height:
52mm
Pin diameter:
20mm
HondaGX390, GX340KES 4,850KES 4,350 from 10Quote
13101-ZE2-000Piston Kit - Honda GX270
Bore:
77mm
Material:
Aluminum Alloy
Compression height:
48mm
Pin diameter:
18mm
HondaGX270, GX240KES 4,250KES 3,850 from 10Quote
751-41140Piston Kit - Lister Petter LPW3
Bore:
98.48mm
Material:
Aluminum Alloy
Compression height:
70mm
Pin diameter:
38mm
Lister PetterLPW3, LPWS3KES 14,500KES 13,000 from 3Quote
751-41240Piston Kit - Lister Petter LPW4
Bore:
98.48mm
Material:
Aluminum Alloy
Compression height:
70mm
Pin diameter:
38mm
Lister PetterLPW4, LPWS4KES 14,500KES 13,000 from 4Quote
504026106Piston Kit - Iveco NEF67
Bore:
104mm
Material:
Aluminum Alloy
Compression height:
77mm
Pin diameter:
42mm
IvecoNEF67, N67KES 19,500KES 18,000 from 6Quote
51.02500-6447Piston Kit - MAN D2066
Bore:
126mm
Material:
Aluminum Alloy
Compression height:
95mm
Pin diameter:
52mm
MAND2066, D2676KES 28,500KES 26,500 from 6Quote
612600030051Piston Kit - Weichai WP10
Bore:
126mm
Material:
Aluminum Alloy
Compression height:
90mm
Pin diameter:
50mm
WeichaiWP10, WD615KES 16,500KES 15000 from 6Quote
612630020089Piston Kit - Weichai WP12
Bore:
126mm
Material:
Aluminum Alloy
Compression height:
92mm
Pin diameter:
52mm
WeichaiWP12, WD12KES 17,500KES 16,000 from 6Quote
3802421Piston Ring Set - Cummins 6BT STD
Bore:
102mm (STD)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
Chrome Plated
Cummins6BT5.9, 6BTA5.9, 6BTAA5.9KES 8,500KES 7,500 from 6Quote
3802422Piston Ring Set - Cummins 6BT 0.25mm
Bore:
102.25mm (0.25mm OS)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
Chrome Plated
Cummins6BT5.9, 6BTA5.9, 6BTAA5.9KES 8,500KES 7,500 from 6Quote
3802423Piston Ring Set - Cummins 6BT 0.50mm
Bore:
102.50mm (0.50mm OS)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
Chrome Plated
Cummins6BT5.9, 6BTA5.9, 6BTAA5.9KES 8,500KES 7,500 from 6Quote
3802430Piston Ring Set - Cummins 4BT STD
Bore:
102mm (STD)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
Chrome Plated
Cummins4BT3.9, 4BTA3.9KES 6,500KES 5,800 from 4Quote
4089979Piston Ring Set - Cummins ISBe STD
Bore:
107mm (STD)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
PVD Coating
CumminsISBe4, ISBe6, QSB4.5, QSB6.7KES 9,500KES 8,500 from 6Quote
U5MK0378Piston Ring Set - Perkins 1104C STD
Bore:
105mm (STD)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
Chrome Plated
Perkins1104C-44, 1104C-44T, 1104C-E44TKES 7,500KES 6,800 from 4Quote
U5MW0268Piston Ring Set - Perkins 1106C STD
Bore:
105mm (STD)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
Chrome Plated
Perkins1106C-E66T, 1106C-70T, 1106D-70TKES 10,500KES 9,500 from 6Quote
4115P017Piston Ring Set - Perkins 403/404 STD
Bore:
84mm (STD)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
Chrome Plated
Perkins403C-15, 403D-15, 404C-22, 404D-22KES 5,500KES 4,950 from 4Quote
265-0776Piston Ring Set - CAT 3054 STD
Bore:
94mm (STD)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
Chrome Plated
Caterpillar3054C, 3054E, 3056E, C4.4KES 8,500KES 7,800 from 4Quote
320-0916Piston Ring Set - CAT C6.6 STD
Bore:
105mm (STD)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
PVD Coating
CaterpillarC6.6, C6.6T, C6.6TAKES 12,500KES 11,500 from 6Quote
13010-ZE3-000Piston Ring Set - Honda GX390 STD
Bore:
88mm (STD)
Material:
Cast Iron
Rings:
2 Rings
Top ring:
Chrome Plated
HondaGX390, GX340KES 1,850KES 1,650 from 10Quote
13010-ZE2-000Piston Ring Set - Honda GX270 STD
Bore:
77mm (STD)
Material:
Cast Iron
Rings:
2 Rings
Top ring:
Chrome Plated
HondaGX270, GX240KES 1,650KES 1,450 from 10Quote
612600030051-RPiston Ring Set - Weichai WP10 STD
Bore:
126mm (STD)
Material:
Cast Iron
Rings:
3 Rings per Cylinder
Top ring:
Chrome Plated
WeichaiWP10, WD615KES 9,500KES 8,500 from 6Quote

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

Filters (31)Injectors & Fuel System Components (18)Cooling System Components (25)Alternators & Electrical Components (22)Electrical Components & Sensors (31)Control Panels & Automation (24)Turbochargers & Air Intake Systems (20)Bearings (74)Valves & Valve Train Components (39)Crankshafts & Connecting Rods (25)Cylinder Liners & Sleeves (13)Engine Blocks & Core Components (10)Timing Gears (10)Oil Pumps & Lubrication System (13)Exhaust System Components (15)Belts (16)Hoses (20)Batteries & Battery Accessories (100)Gauges (100)Mounting Hardware & Fasteners (150)Fuel Tanks & Fuel System Accessories (80)Lubricants (100)Tools & Maintenance Equipment (100)Generator Enclosures & Accessories (78)Wiring (81)Safety Equipment & Fire Protection (20)
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
Browse by category

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