Three-quarter-ton pickup, Chevrolet Silverado mechanicals with GMC trim. Below: who sells it near Ontario, what is available now, and how to choose the right configuration.
No sellers in our network are currently listed close to Ontario. Commercial dealers routinely deliver across Southern California, so tell us what you need and we will look more widely.
21 vehicles
AT4 · Pickup
$86,185
AT4 · Pickup
$92,585
SLE · Pickup
$53,735
SLE · Pickup
$72,069
SLE · Pickup
$75,085
AT4 · Pickup
$91,454
SLT · Pickup
$87,170
AT4 · Pickup
$91,554
AT4X · Pickup
$107,880
AT4 · Pickup
$89,610
Pro · Pickup
$51,205
AT4 · Pickup
$84,585
SLT · Pickup
$86,665
AT4X · Pickup
$107,730
AT4X · Pickup
$98,490
AT4 · Pickup
$85,560
AT4X · Pickup
$94,485
AT4 · Pickup
$90,320
AT4 · Pickup
$73,295
SLE2 · Pickup
$8,995
SLE · Pickup
Request Price
Pricing not supplied by the seller
What separates Ontario from its neighbours is the airport. Air cargo operates to schedules that do not flex, and a substantial local industry exists to move freight between aircraft, sorting facilities and customers within hours rather than days. That urgency shapes vehicle buying more than any other local factor.
Businesses working to those timetables buy differently. A vehicle that is off the road costs a missed departure rather than a rescheduled appointment, so operators here tend to favour newer equipment, service contracts and manufacturer networks with genuine local depth. Purchase price matters less than the probability of an unplanned failure.
The second defining feature is the retail and hospitality concentration around the convention centre and the shopping districts. That generates a steady base of facilities maintenance, refrigeration service, food distribution and hospitality supply work — trades that need reliable, moderately sized vehicles rather than heavy chassis.
Ontario also functions as a distribution point in its own right, with warehousing that serves both the airport and the wider basin. The vehicle population reflects a blend: cargo vans and cutaway box trucks for expedited work sit alongside the heavier equipment that pure warehouse districts run.
Commercial support infrastructure is good. Dealer coverage and body builders are within reasonable reach along the I-10 corridor, and the density of commercial operators means independent service providers who understand fleet work rather than only retail customers. For a business dependent on uptime, that ecosystem is a genuine operating advantage.
The constraint is cost and congestion. Property and operating costs here sit above the outlying Inland Empire, and traffic around the airport and the retail districts is heavy at predictable times. Businesses that do not specifically need airport proximity sometimes base further out and accept the drive.
Moving air cargo to and from the airport against fixed departure times. Cargo vans and cutaway box trucks predominate, and buyers weight reliability, service response and warranty coverage far above purchase price, because a breakdown costs a missed flight rather than a rescheduled visit.
Perishables moving through air freight and into regional distribution. Insulated bodies with refrigeration units, where unit reliability is the whole purchase — a failed reefer on a perishable load is a total loss rather than a delay.
Restaurants, hotels and the convention trade generate constant supply and equipment service work. Moderate-sized vans and box trucks with liftgates, operating in loading areas and service yards where manoeuvrability matters more than capacity.
Retail, hospitality and cold storage all depend on refrigeration that fails expensively. High-roof cargo vans fitted out as mobile workshops, carrying enough parts inventory to complete a repair on the first visit rather than returning.
Large retail, hotel and warehouse properties sustain ongoing maintenance contracting. Service bodies and cargo vans, usually configured for a broad tool and parts inventory rather than for one specialism.
Vehicles supporting airport operations and the businesses clustered around them. Requirements here are often specific — access credentials, equipment specifications and operating restrictions — so confirm what a contract actually demands before specifying a vehicle for it.
Schedules are governed by fixed departure and delivery times rather than by daily mileage. That makes reliability the dominant purchase criterion here in a way it is not elsewhere in the region — a vehicle that is cheap to buy but unpredictable costs far more than the difference in a business built on meeting timetables.
Traffic around the airport approaches and the retail districts is heavy at predictable periods, and access roads near cargo facilities can queue substantially. Local operators plan around those windows, and drivers new to the area routinely underestimate how much time the last mile consumes.
Loading areas at hotels, restaurants and retail premises are frequently tight and often shared, which favours moderately sized vehicles that place easily over larger ones that carry more. A box truck that cannot get into a service yard is worth less than a van that can, whatever the payload figures say.
Summer heat is consistent with the wider valley and taxes refrigeration equipment hardest precisely when perishable loads are most vulnerable. Reefer capacity should be specified against worst-case ambient temperature rather than average, and unit servicing treated as critical maintenance rather than routine.
Local guidance reviewed by the SoCal Work Trucks editorial team, last updated 2026-09-04.
Three-quarter-ton pickup, Chevrolet Silverado mechanicals with GMC trim.
Fleets wanting Silverado capability from a GMC dealer.
Ranges across common configurations of this model. The figures for any individual vehicle depend on its cab, wheelbase, drivetrain and upfit.
These are model ranges, not a specific truck. Payload in particular varies by well over 1,000 lbs across configurations. Always confirm against the door-jamb sticker and the manufacturer documentation for the exact vehicle before you buy or load it.
Mechanically this is close to the Silverado 2500HD, so cross-shop the two directly. Capability is near identical and the difference is trim, dealer network and price. Fleets sometimes pay a premium for the GMC badge without gaining any working capability, so compare like-for-like configurations rather than trim levels.
Vehicles commonly cross-shopped against the GMC Sierra 2500HD.
This truck presents an unusual buying problem: it is excellent, and there is an almost identical one wearing a different badge in a dealership down the road. Frame, engines, transmissions and capability are shared with the Silverado 2500HD. Anyone telling you the Sierra is mechanically superior is selling something.
Where the two genuinely part company is market positioning, and that has practical consequences. GMC is positioned upmarket within General Motors, and its dealers stock accordingly. Walk two forecourts and you will typically find more high-specification Sierras and more basic-trim Silverados. For a contractor wanting a plain working truck, that shapes what is actually available to buy far more than any specification sheet does.
That skew cuts both ways and can be exploited. Because dealers stock what they expect to sell, a fleet-specification Sierra is a less common order and can sometimes be had on better terms simply because the dealer wants the sale. Equally, a business that wants a well-equipped truck for an owner or a supervisor may find the Sierra configured closer to what it wants without adding options individually.
The engine decision is the same one every heavy-duty buyer faces and is the most consequential thing on the order form. The petrol V8 is cheaper to buy and to service and suits local work with intermittent towing. The Duramax diesel with the Allison transmission is a strong combination for sustained heavy towing and high mileage, and it commands a premium both new and used that only real towing hours justify.
For Southern California fleets the practical GMC question is service network density. Ford operates the deepest commercial network in the region. GMC coverage is good but thinner in parts of the Inland Empire, and if you are standardising a fleet the location of your nearest commercial service department is worth checking on a map before it becomes a downtime problem.
On capability the Sierra holds its own comfortably against the F-250 and Ram 2500. Towing ratings are competitive, the trailering equipment and camera systems are genuinely good, and the MultiPro tailgate is more useful in daily work than it sounds. None of that is a compelling reason to choose it over a Silverado, which is the honest comparison.
General contracting · Construction management · Framing · Concrete
Crew Cab trucks carrying tools and materials between sites, often with a supervisor spending most of the working day in the vehicle. This is where the higher Sierra trim availability is an advantage rather than an expense, because the truck doubles as an office.
Typical configuration: Crew Cab, petrol V8, four-wheel drive if sites are unpaved
Landscaping · Equipment rental · Excavation · Pool construction
Pulling skid steers, mini excavators and dump trailers between jobs. The Duramax and Allison pairing handles sustained grades well, which matters on the Cajon Pass and the climbs out towards the desert where a petrol engine works considerably harder.
Typical configuration: Crew Cab, Duramax diesel, integrated trailer brake controller
Mobile mechanics · Irrigation · Electrical service · Facilities
A service body fitted to a chassis of this rating suits most mobile trades. Payload rather than fitment is the limiting factor, so weigh the completed truck rather than trusting the chassis figure, particularly with a steel body and a full parts inventory aboard.
Typical configuration: Regular or Crew Cab with an 8 ft service body
Agriculture · Ranching · Vineyard · Land management
Common across the inland valleys and the rural fringes of Riverside County. Four-wheel drive earns its place on unpaved tracks, and the ability to tow a stock or equipment trailer while carrying supplies in the bed is the standard requirement.
Typical configuration: Crew Cab, four-wheel drive, conventional hitch
Municipal fleets · Water districts · Parks departments · Public works
Public-sector buyers frequently purchase through state or cooperative contracts where GM pricing is competitive. Standardising across departments simplifies parts stocking and technician training, which is usually worth more than optimising each vehicle individually.
Typical configuration: Regular or Double Cab, petrol V8, specified to contract
Business owners · Project managers · Estimators · Field supervisors
A truck that must present well at a client meeting and still tow a trailer at the weekend. The Sierra trim positioning suits this dual role, and higher-specification examples are readily found rather than needing to be ordered.
Typical configuration: Crew Cab, upper trim, conventional towing package
Cross-shop the Silverado directly, on the same specification, on the same day. These are the same truck, so the only rational grounds for choosing between them are price, availability and which dealership will actually look after you afterwards. Buyers who skip this step routinely pay more for a badge that carries no engineering advantage.
Search on availability rather than on the configurator. Because GMC dealers stock towards the higher trims, the plain working truck you want may take longer to find on a Sierra forecourt than on a Chevrolet one, or may need ordering. If you need a truck this month, that stocking pattern matters more than any option list.
Choose the engine on towing hours rather than on capability envy. Duramax and Allison together are excellent for sustained heavy towing and high annual mileage, and they hold value. For local work with a trailer a few times a month, the petrol V8 costs meaningfully less to buy and to service and avoids the after-treatment problems that short trips cause diesels.
Calculate payload against the vehicle as you will actually run it. Crew cab, four-wheel drive and the diesel each reduce what you can carry, and most buyers want all three. Add a service body, tools, fuel and occupants and the usable figure falls well below the headline. The door placard is the number that governs.
Check where your nearest GMC commercial service department actually is before standardising a fleet on it. Coverage across Southern California is good but not as dense as Ford’s, and a truck that is cheaper to buy but slower to get serviced can cost more across a year of downtime than the purchase saving.
Finally, decide honestly whether you need the three-quarter-ton at all. If loads are modest and towing is occasional, a half-ton costs less to buy and run and rides better empty. If you tow goosenecks or carry a heavy permanent body, look at the 3500HD instead. The 2500HD is the right answer for a genuinely wide middle, but it is not automatically the right answer.
An editorial evaluation written by the SoCal Work Trucks editorial team, last reviewed 2026-09-04. It is our own assessment, not customer reviews or ratings.
A thoroughly capable heavy-duty pickup that is difficult to fault on merit and difficult to justify over its Chevrolet twin on anything except price, availability and dealer relationship. Buy it when the Sierra quote is better, when the truck you want is the one on the GMC lot, or when a higher-specification truck genuinely suits the role. Do not pay a premium for the badge, because there is no engineering behind it.
Duramax and Allison make a strong towing pair
Well-matched for sustained heavy towing on long grades, with a reputation that supports used values. On the climbs around Southern California that pairing is noticeably unstressed.
Genuinely useful trailering equipment
Camera systems, trailer profiles and integrated brake control are among the better implementations in the class, and they reduce the everyday friction of hitching and reversing.
Higher-trim availability suits dual-role trucks
For owners and supervisors whose truck is also a mobile office and a client-facing vehicle, well-equipped examples are easy to find rather than needing a special order.
Competitive capability across the class
Towing and payload sit comfortably alongside the F-250 and Ram 2500, so the choice can be made on commercial terms rather than on capability compromise.
Strong fleet and public-sector purchasing programmes
GM commercial and cooperative contract pricing is frequently competitive, particularly for municipal and multi-vehicle purchases, and is worth approaching through a commercial department rather than a retail showroom.
No mechanical case against the Silverado
They are the same truck. Any price premium paid for the GMC badge buys trim and positioning, not capability, and buyers who do not cross-shop tend to overpay.
Work-specification trucks are harder to find
Dealer stocking leans upmarket, so a basic fleet truck often needs ordering or a longer search, which is a real problem when a vehicle is needed quickly.
Thinner commercial service coverage than Ford
Adequate across the region but less dense in parts of the Inland Empire. For fleets, the location of the nearest commercial department affects downtime directly.
Payload disappears quickly on the popular specification
Crew cab, four-wheel drive and diesel together take a substantial bite before a body or tools go on. Buyers planning around the towing figure alone get caught.
Diesel premium rarely repays light use
The Duramax costs more to buy and service, and short-trip duty cycles cause after-treatment problems the petrol V8 avoids entirely. It is a towing engine, not a default.
Ask for maintenance records on any used Duramax rather than relying on the engine’s reputation. Emissions equipment is where the expensive failures live on modern diesels, and a truck used for short local trips has had exactly the duty cycle that causes them. Documented servicing is worth paying for here.
Inspect the rear leaf springs and the frame for sag or previous repair, and look at how the bed sits relative to the cab. A truck that has spent years carrying more than it should reveals it in stance and in uneven rear tyre wear long before anything else shows.
If the truck has towed heavily, examine the hitch and receiver area closely along with the transmission service history. Sustained towing on Southern California grades puts real heat into a transmission, and fluid that has never been changed on a hard-worked truck is a reasonable basis for negotiating.
Manufacturer and regulatory sources for specifications and requirements. We do not link to other vehicle-selling websites.
