Engine Spares
Engine gasket set
Top sets, full sets, tappet cover gaskets and valve seat inserts. Say which job you're doing and we'll list what goes with it.

What to send us
The number stamped on the old part is the quickest route. If it has worn off, the engine or genset model and serial number usually gets us there. Photos help more than descriptions.
We cross-check whatever you send against the OEM catalogue and confirm the match with you before anything ships.
About this range
Gasket sets are sold by the part of the engine they cover. An upper or top set covers the cylinder head and the joints above it. A lower set covers the bottom end: sump, front and rear covers and the gear housing. A full set is both, and is what a complete overhaul needs.
Suppliers differ on what falls inside each boundary, and the head gasket in particular is sometimes in the upper set and sometimes sold on its own. It is worth confirming that one item before ordering rather than discovering it on the day of the rebuild.
Tell us the engine model and which job you are doing, a head lift or a full strip, and we will list what the set contains before you commit.
Products in this category
7 listed
Open one for its specification and the part numbers it covers. We stock more than we list, so send us the number even if yours isn’t here. You can also look a number up in the part number index.

Cummins 6CT / C8.3 valve seat insert
- 3904715
- 3908830
- 3924582
- +2 more

Cummins 6CT upper gasket set 4025271
- 4025271
- 3800750
- 3802624
- +5 more

Cummins K38 valve seat insert 3086192 / 3086193
- 3086192
- 3086193
- 205093
- +1 more

Cummins QSM11 top gasket set 4089478
- 4089478

Cummins QSB6.7 tappet cover gasket
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Cummins KT19 / KT1150 upper gasket set 4352578
- 4352578
- 3800728
- 3801005
- +4 more

Cummins QSB4.5 full engine gasket set
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More in engine spares
6 of 17

Cummins engine spares
27The parts that go inside or bolt onto the engine itself. Send the engine model along with the number stamped on the part you're replacing.
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Cummins fuel injector
20Injectors for Cummins diesel engines. Injector numbers are superseded fairly often, so we cross-check the number on the old unit before quoting rather than going by engine model alone.
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Fuel pump
45Fuel pumps and pump assemblies for diesel engines and gensets. Send the pump's own number as well as the engine model, since one engine can take more than one pump variant.
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Water pump
19Coolant pumps for diesel engines. A failing pump usually shows up as coolant loss or overheating. Send the number cast into the old pump housing and we'll match it.
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Piston, liner & ring kit
12Pistons, liners, ring sets, cylinder heads and the LPR kits that bundle them. Tell us the engine model and bore size, and whether you need standard or oversize.
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Belt & tensioner
10V-ribbed and fan belts, tensioners and tensioner shock absorbers. Measure the old belt or send its number and we'll match it.
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