Some parts cost you an afternoon. These ones cost you the week. So they stay at the front of our minds — lined up with more than one supplier each, so nobody’s backorder becomes your problem, and the part goes out the door quickly. Here is what to watch, machine by machine.
Excavators
The excavator parts that strand a machine where it stands: hose and fitting sets in the sizes you run, hydraulic and engine filters, fuel filters, belts, bucket teeth, track pads, seal kits for the cylinders.
Why: a burst hose stops the machine where it stands, and teeth and pads wear out on their own schedule whether you are ready or not.
Backhoes
Pins and bushings for the hoe linkage, teeth for both buckets, hoses and fittings, stabilizer pads, the full filter set, belts, cylinder seal kits.
Why: the hoe end wears its pins out faster than anything else in the yard, and a backhoe is usually the one machine doing six different jobs in a day.
Dozers
Track shoes, sprockets, idlers, roller seals, cutting edges and end bits, hoses, filters, ripper tips.
Why: the undercarriage eats about half of what a dozer costs you to run, and a worn sprocket against a fresh shoe chews through both.
Paving Equipment
Conveyor chain and auger flights, screed plates and wear shoes, spray bars and nozzles, drum scrapers, hoses and filters, vibrator bearings.
Why: a crew cannot stop halfway down a mat, and a blocked spray bar or a worn screed plate shows up in the finished surface for good.
Dump Trucks
Hoist cylinder seals, articulation hitch pins and bearings, suspension struts, bed wear liners, wet brake discs, hydraulic and transmission filters.
Why: one hauler down backs the whole dig up behind it, and hitch and suspension parts for these are rarely sitting on a shelf nearby.
Out-of-Service Equipment
Old part numbers and whatever replaced them, good used and rebuilt units, and the measurements that prove a swap will actually fit.
Why: a part being discontinued does not mean your machine is, and working out what will fit instead is the bit we enjoy most.