CAT 319: The New Compact Radius Excavator Slotting Between the 315 and 325

CAT doesn’t often add a brand-new model number into the middle of an already-crowded excavator lineup, but that’s exactly what happened on March 1, 2026 with the launch of the CAT 319 — a compact radius excavator built to fill the gap between the 315 and the 325. If you’ve ever been stuck choosing between a 315 that felt a little light for the job and a 325 that felt like overkill on cost and footprint, CAT just built the machine that was supposed to exist in between.

What the 319 Actually Is

The 319 lands at roughly 20,000 kg (44,100 lb) operating weight in North American spec — 19,700 kg in Europe — putting it firmly in the 19- to 20-ton class. It’s powered by a CAT C3.6 engine rated at 99 kW (133 hp), with a maximum digging depth of 6,550 mm (21.5 ft) and a maximum reach at ground line of 9,190 mm (30.2 ft). Maximum loading height comes in at 6,430 mm (21.1 ft), and CAT specs an optional 1 cubic meter (1.31 cubic yard) general-duty bucket. The undercarriage runs 2.8 m (9.2 ft) wide with a 2.2 m (7.2 ft) track gauge — CAT specifically calls out that width as delivering extra stability, which matters on a machine sized to do bigger digging work with a compact-radius swing.

The Closest Thing to a Predecessor

There’s no direct one-for-one model the 319 replaces — it’s a genuinely new slot in the lineup, not a straight generational swap, and we want to be upfront about that instead of forcing a comparison that doesn’t exist. CAT does say the 319 is built on the 317 Next Generation platform, offering similar or better capabilities while meeting compact radius expectations, so the 317 is the closest thing to a technological predecessor worth naming here. Practically, though, the 319’s real job is positioning: CAT describes it as slotting neatly into the compact radius lineup between the 315 and 325, giving contractors a more cost-effective alternative to the growing 325 without stepping all the way down to a 315 that might be light for the job. If you’ve been cross-shopping either of those two machines and neither felt quite right, the 319 is the answer CAT just built.

Why the Gap Between the 315 and 325 Mattered

Model-to-model gaps like this aren’t just marketing filler — they show up as real compromises on real jobsites. A general contractor digging footings and utility trenches on a tight urban lot needs compact-radius swing to avoid swinging into a fence, a sidewalk, or a neighboring structure, but might also need more digging depth and reach than a 315 offers once the job calls for a deeper basement excavation or a longer utility run. Stepping up to a 325 solves the capability problem but adds cost, weight, and transport complexity that isn’t always justified for that extra reach. The 319 is built for exactly that contractor: someone who needs more excavator than a 315 without paying for more excavator than the job actually requires.

Sizing the 319 Against Neighboring Classes

If you’ve been running a smaller CAT mini excavator like the machines in our 308 CR coverage, the 319 is an entirely different weight class — that machine sits in the 5- to 10-tonne mini excavator range, while the 319 is a true 19- to 20-ton excavator built for foundation work, larger utility trenching, and site development, not tight residential lots. The comparison worth making instead is against the 315 and 325 themselves: the 315 gives up reach and depth for a smaller footprint and lower cost, while the 325 gives you more of both but at a real jump in weight, transport cost, and purchase price. The 319’s 9,190 mm reach and 6,550 mm dig depth sit in between those two by design, which is the entire point of CAT building it in the first place.

Dealer Support and Resale on a New Model

Buying the first model year of a genuinely new machine number always raises the same question: how will it hold up on resale, and will parts and service support be there when you need them? Because the 319 is built on the proven 317 Next Generation platform rather than an entirely new engineering base, a lot of the underlying components, service procedures, and parts commonality that CAT dealers already support on the Next Generation excavator lineup carry over. That’s a meaningfully different risk profile than a machine built from a clean sheet, and it’s worth factoring into the resale conversation if you’re weighing a brand-new 319 against a used 315 or 325 with a longer track record.

Who Should Be Looking at This Machine

Site development contractors, utility subs, and general contractors doing foundation and basement excavation on infill or urban lots are the clearest fit — anyone whose work regularly bumps against property lines, sidewalks, or existing structures while still needing real digging depth and reach. It’s also worth a look for contractors who’ve been running a 315 and finding themselves renting up to a bigger machine more often than they’d like on deeper or longer jobs; the 319 may mean owning one machine instead of owning a 315 and renting a 325 a handful of times a year.

The Rent-vs-Own Case for a Mid-Class Excavator

This is exactly the kind of machine that gets rented piecemeal by contractors who don’t have quite enough volume in the 19- to 20-ton class to justify owning one — and it’s exactly the kind of machine where that thinking costs the most money over time. If you’re renting a machine in this class more than a few times a year, every one of those rental invoices is money that built you nothing. Financing the 319 instead means that same capability sits in your yard, ready the moment a job calls for it, building equity instead of disappearing into a rental agreement — and unlike a bank that wants years of clean history before it will talk to you about your next piece of equipment, BFC can structure financing so you’re not locked out of your next machine while this one is still being paid down. That flexibility is the difference between a lender and a growth partner, and our piece on winning more bids by owning instead of renting covers the competitive side of that math in more detail.

Financing the 319 (or Anything Else in CAT’s Compact Radius Lineup)

The 319 is brand new, which means used pricing hasn’t developed yet — most contractors financing this one will be buying new. Down payments still follow the same qualitative range they always do at BFC: strong, well-established credit can sometimes mean $0 down, other credit profiles land in the 20–30% range or occasionally higher, and sometimes all it takes to get moving is the first payment. Our excavator financing guide and Caterpillar excavator financing page cover the general process, and if you’re weighing a smaller CAT mini excavator against a step up into this 19- to 20-ton class, our piece on the 308 CR replacing the 307.5 is worth a read too. Apply directly with BFC to get real numbers for your business — we don’t guess at that part.

Talk to BFC About Financing

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