Cat mining haul trucks such as the 777, 785, 789, 793 and 797 move most of the material at many open-pit mines. When one is parked waiting on a part, the whole load-and-haul cycle slows down. Finding the part fast starts with the exact Caterpillar part number and the truck's serial number.
This guide covers how buyers source Cat 793 parts, Cat 797 parts and Cat 785 parts by part number, which part types show up on haul truck work orders, and how to get one quote for the whole list. You can search Caterpillar parts by part number on the Global Parts Intel marketplace now: Caterpillar parts for sale.
Start with the part number and the serial number
On mining trucks, the model name alone isn't enough. A 793D and a 793F are different machines, and parts can change within a series by serial number range. Before you send a request, get:
- the full Caterpillar part number from the parts book, the old part or the work order,
- the truck model and serial number (for example, 793D plus the serial prefix and number),
- the engine serial number for engine, turbo and fuel system parts.
On GPI, the parts search matches exact part numbers and, when sellers provide them, alternate and superseded numbers. Cat part numbers are often written with a dash (for example 105-2440); GPI listings show them without the dash (1052440), so search that way.
Steering parts
Haul truck steering runs on hydraulic cylinders, and cylinders and their seals are a common repair. On GPI you'll find a steering cylinder (1052440), a steering cylinder (4170582) and a steering cylinder and seal assembly (8V5216). Confirm the truck model and serial range with the seller.
Brake seals
Brake work on mining trucks often comes down to seals. Live listings include a brake seal (3Q6528), a service brake seal (1129723) and a parking brake seal (2927143).
Axle, wheel, final drive and differential parts
Wheel stations, final drives and differentials use bearings, gears and hardware that get replaced during rebuilds. GPI lists a bearing group, axle (2990236), a wheel set screw (3089259), a planetary shaft (4V8534), a sun gear (8K6282), a side gear (8R9830) and a spider group (9V7710), plus tapered bearing cups and cones such as 2D9454 / 2D9455 and 6Y2540 / 6Y2539. Bearings and gears are serial-sensitive, so send the serial number with the part number.
Transmission parts
Powertrain requests often include filters, valves and clutch parts. Listings include a transmission filter (1328875), a transmission valve (2011550), a clutch plate (6I8500) and a clutch and ring assembly (3V0908).
Engine, turbo, cooling and air intake parts
Engine parts should be matched to the engine serial number, not just the truck model. On GPI today: a turbocharger assembly (1922076), a turbo group (3881993), a turbo gasket (1S4295), an engine oil pump assembly (2335220), a fuel transfer pump (1W1695), a fuel priming pump (1375541), a radiator core (2235121), a thermostat (2485513), a manifold gasket (9Y1979), an air filter element (5280585) and a precleaner assembly (1306854).
Electrical, charging and cab parts
Charging, starting and monitoring parts keep a truck on shift. Live listings include an alternator (3397767), an alternator assembly (3E7577), an electric starter motor assembly (2071560), a VEC control module (3600048), a speedometer module group (1090598), an instrument panel (4536175), a pressure sensor (1946724), an LED light assembly (2465306), a windshield (3822311) and a reverse alarm (TYHX0052).
Hydraulic hoses and seal kits
Steering, brake and hoist circuits all use hoses and seals. GPI lists many Cat hose assemblies, such as 2021082 and 2263283, plus a hydraulic system seal kit (5331539) and a hydraulic cylinder seal kit (2409936).
Can't find your part number?
If a part number isn't listed, send an RFQ anyway with the part number and serial number; a seller may be able to source it. To browse everything, open all Caterpillar parts or search all parts.
RFQ checklist for Cat haul truck parts
Send one request for quote (RFQ) with:
- Every Caterpillar part number and the quantity of each.
- Truck model and serial number (777, 785, 789, 793, 797 and the series letter).
- Engine serial number for engine, turbo and fuel parts.
- The condition you'll accept (new, used, rebuilt) and whether you need genuine Cat or will accept aftermarket.
- Delivery location (mine site, port or warehouse) and the date you need it.
That gives a seller everything they need to quote the whole list in one reply.
For dealers who sell Caterpillar mining parts
If you stock Cat haul truck parts, GPI is the dealer platform behind the marketplace. List your parts for free so mining buyers find them by part number, then run the parts desk from one place:
- RFQ intake and fast quoting: requests from the marketplace land in one queue and turn into quotes in a few clicks.
- Part markup rules: set markup by brand, category or cost range so every quote protects margin.
- Marketplace sourcing: when a part isn't on your shelf, find it from other sellers and still win the order.
- OFAC screening: screen buyers before you quote or ship export orders, which are common in mining supply.
- Remote punch-in time clock: counter, warehouse and field staff clock in from their phones.
- AI knowledge base: answer part-number and fitment questions from your own documents.
See dealer software · Pricing · List your parts
Frequently asked questions
Enter the Caterpillar part number, without dashes, in the Global Parts Intel parts search, or open the Caterpillar parts page. Each listing shows condition and seller, and you can request a quote from the listing. Include your 793 serial number so the seller can confirm fitment.
Not today. Caterpillar listings on GPI are listed by part number and description, not by truck model. Check the part number against your parts book and confirm fitment with the seller.
Live listings include steering cylinders, brake seals, axle bearing groups, planetary and differential gears, transmission filters and valves, turbochargers, fuel pumps, alternators, starter motors, control modules, hoses and seal kits.
Yes. Put every part number, quantity, truck model, serial number and delivery location in one RFQ.
GPI is an independent marketplace, and a listing can be genuine, used or aftermarket. Ask the seller whether a specific part is genuine Cat or aftermarket before you buy.
No. GPI is not affiliated with Caterpillar Inc. Brand and model names are used only to describe compatibility.