Engine Spares
Engine hose
Charge air cooler hoses, hump hoses, radiator hoses and flexible pipe. Send the number off the old hose, or the engine model and where the hose sits.

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
Two jobs, two very different hoses. Charge air cooler hoses carry hot compressed air between the turbocharger, the cooler and the inlet, and they see pressure and heat. Radiator and heater hoses carry coolant, and see heat without much pressure.
A charge air hose that has split or blown off its clamp costs power and boost immediately, and often shows itself as a whistle or a sooty mark at the joint. Coolant hoses go the other way and fail slowly, going hard and glassy or soft and swollen, usually at the ends where they sit on the stubs.
Send the number off the old hose if it carries one. Otherwise the engine model and where the hose sits will get us there, and a photograph with a tape measure beside it settles the bore and the length.
Products in this category
6 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 CAC hump hose 4330737
- 4330737
- 4330738
- 4345237

Cummins CAC and intercooler hose
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Cummins flexible hose 3913824
- 382622
- 4093806
- 3913824
- +5 more

Cummins flexible hose 3631437
- 3631437
- 3632015
- 3632028
- +4 more

Cummins QSK19 flexible hose 4964230
- 4964230

CAC air hose pipe for QSB6.7, QSL9 and QSN14
View partMore 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 Injector numbers are superseded fairly often, so we cross-check the number on the old unit before quoting rather than going by engine model alone.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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Engine gasket set
7Top sets, full sets, tappet cover gaskets and valve seat inserts. Say which job you're doing and we'll list what goes with it.
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