CAT 140 vs. John Deere 672G: Two Motor Grader Philosophies Nobody on This Blog Has Compared Yet

24 hours ago

7 min read

Open the archive on this blog and you'll find excavators cross-shopped a dozen different ways, compact track loaders matched up in every weight class, and wheel loaders compared down to the bucket-fill factor. What you won't find, until now, is a single motor grader put up against another brand's motor grader. That's a strange gap, because road-maintenance contractors, site-development crews, and aggregate operations finance graders through BFC regularly, and the CAT 140 against John Deere's 672G is one of the more common cross-shop conversations that happens at the counter and never gets written down anywhere.

Part of the reason motor graders get skipped in comparison content is that they don't lend themselves to a simple bigger-number-wins argument the way an excavator's dig depth or a wheel loader's tipping load does. A grader's whole job is finesse: holding a blade at a precise angle, pitch, and depth while rolling down a road at speed, correcting for crown and cross-slope, and doing it the same way on pass fifty as on pass one. That's a controls-and-geometry problem as much as a horsepower problem, and it's exactly where CAT and Deere diverge.

The Core Machines

CAT's 140 sits in the mid-frame of Caterpillar's grader lineup, built around a C7.1 ACERT engine in the roughly 150-gross-horsepower class, running a 12-foot standard moldboard that extends further with a sideshift. It's available in CAT's familiar 6x4 articulated configuration or, for contractors working loose aggregate and soft subgrade, a 6x6 all-wheel-drive version that adds traction on material a standard grader would spin through. John Deere's 672G runs in a comparable mid-size bracket with a PowerTech PSS engine in the roughly 200-to-225-gross-horsepower range and a 14-foot moldboard as standard, so the two machines aren't a perfect horsepower match out of the gate -- Deere's 672G leans into the larger end of what most contractors would call mid-size, while CAT's 140 sits closer to the compact-to-mid line. Anyone cross-shopping these two should treat that gap honestly rather than pretend the spec sheets land on the same line.

Articulation and All-Wheel Drive: CAT's Signature Move

The feature that actually defines CAT's grader lineup isn't the engine, it's the articulated frame paired with front-wheel lean. CAT graders can crab-steer and lean the front wheels into a bank cut, letting the machine hold a cutting angle on a slope that would otherwise require the operator to fight the steering the whole pass. Pair that with the optional AWD 6x6 configuration, and a CAT 140 AWD becomes a genuinely different tool than a standard 6x4 grader on loose base material, wet subgrade, or a jobsite without a finished haul road yet -- conditions a lot of site-development and DOT subcontractor work actually happens in, not just the textbook finished-road scenario graders get photographed doing.

That AWD option isn't free, and it isn't something every fleet needs. A contractor doing finish grading on compacted, well-prepped subgrade for municipal road work gets little benefit from the extra traction and mostly just carries the added purchase cost and driveline complexity. A land-development or aggregate-site contractor cutting through raw dirt before the base course goes down is exactly who that option exists for, and it's worth having the rent-vs-own conversation specifically around that use case rather than the grader in general.

Deere's Answer: Circle Position and Operator Sightline

John Deere's grader engineering takes a different problem seriously: how well the operator can actually see the cutting edge. Deere mounts its circle and moldboard assembly with a design philosophy built around keeping the operator's eyeline as close to the blade as the cab layout allows, and Deere's grader cabs have long been built around a sliding or repositionable seat that lets the operator shift toward the side glass to watch the edge of the moldboard directly instead of estimating position from a mirror or a camera. On a long finish-grading pass where a half-inch of blade drift turns into a failed proof-roll, that sightline difference is not a comfort feature, it's a production-rate and rework feature.

The 672G's larger standard moldboard and higher horsepower ceiling also point toward a different buyer than CAT's 140: a contractor moving more material per pass on county road rebuilds, subdivision streets, or larger site-development cuts, where the extra width and power shave passes off a job rather than finesse a final lift. If your work is mostly finish grading on smaller municipal and commercial lots, that extra size can be more machine than the job calls for, and the tighter-radius CAT 140 may actually maneuver a confined site better.

Grade Control Is a Shared Conversation, Not a Differentiator Here

Both CAT and Deere offer factory-integrated GPS grade-control packages on their grader lineups, following the same broader shift the rest of their equipment lines have already made.

We've already covered how CAT Grade and John Deere SmartGrade compare philosophically on excavators and dozers, and the short version carries over to graders: CAT treats grade control as a flexible, add-on-later menu, while Deere builds SmartGrade as a staged ladder from EZ Grade through full 3D with a built-in upgrade path. If GPS blade control is the deciding factor for your crew rather than the base machine's mechanical design, that's worth reading before you finalize either grader.

Undercarriage, Circle Drive, and the Real Maintenance Conversation

A grader's circle drive and moldboard wear pads are wear items no matter which brand you buy, and both CAT and Deere build their circles for field-replaceable wear shoes rather than requiring a circle swap when the drive gear wears. Where the two brands diverge more is tandem design: CAT's tandem housings are built around a design CAT has run largely unchanged across multiple grader generations, which cuts both ways -- parts commonality is excellent across a used CAT grader fleet of mixed ages, but it also means you're not getting a clean-sheet redesign every cycle. Deere's G-series tandems have gone through more visible revision as the line has matured, which can mean newer engineering but a narrower parts-interchange window between an older and a newer Deere grader in the same fleet.

Who Should Actually Be Cross-Shopping These Two

Road-maintenance subcontractors running a county or municipal grading contract, site-development companies cutting pads and roads ahead of vertical construction, aggregate and quarry operations maintaining haul roads, and land-clearing outfits finishing cleared ground before a dozer or compactor follows behind are the real buyers in this conversation -- not the general contractor who rents a grader twice a year for a small lot. For that occasional user, renting still makes sense. For the contractor who has a grader on a jobsite every week of the season, owning stops the rental-rate math from eating the margin on every single job, and it puts the exact configuration -- AWD or not, moldboard width, grade-control tier -- in the hands of the crew that actually runs it every day instead of whatever the rental yard has available that week.

The honest answer to which grader is better is that it depends on what you're actually cutting and how finished the ground is when the grader shows up. A CAT 140 AWD earns its keep on raw, wet, or loose material before a base course goes down. A John Deere 672G earns its keep on larger finish-grading passes where sightline to the blade and standard moldboard width matter more than articulated crabbing on a slope. Neither spec sheet makes the other one wrong -- they're built for different points in the same grading sequence.

Scarifiers, Rippers, and the Attachment Question

Both brands offer a front-mounted scarifier and a rear ripper as factory or dealer-installed options, and this is one area where the buying decision has less to do with brand philosophy and more to do with what you're actually breaking up. A scarifier mounted ahead of the moldboard tears up compacted or frozen ground before the blade ever touches it, which matters for road-maintenance crews reclaiming an old gravel road or a site-development contractor cutting through ground that's set up harder than expected after a dry spell. A rear ripper does similar work on tougher material but trades the operator's ability to see the scarified ground immediately in front of the blade. Neither CAT nor Deere has a clear mechanical edge on these attachments specifically -- both mount them to a standard drawbar, and the real differentiator is simply whether your dealer stocks the configuration you need without a long lead time, which is worth asking about before you finalize a purchase order rather than after.

A Real Scenario: Maintaining Forty Miles of County Gravel Road

Picture a subcontractor holding a seasonal county contract to maintain forty miles of unpaved rural road -- the kind of work that's steady but genuinely difficult on equipment, cutting through washboard, filling potholes, re-crowning for drainage, and doing it all on a schedule that doesn't pause for weather. That contractor runs a grader nearly every working day of the contract season, which is exactly the use case where the AWD-versus-standard-6x4 question on a CAT 140 stops being theoretical. Washboard gravel and soft shoulder material reward the extra traction a 6x6 configuration provides, cutting down on wheel spin that chews up tire tread and wastes fuel fighting for grip instead of cutting material. That same contractor, if they're running a 672G instead, leans on Deere's sightline advantage to hold a consistent crown across forty miles without constant re-checks, because a crew doing the same repetitive pass day after day benefits enormously from an operator who can trust what they see rather than second-guessing blade position on every run.

That's the kind of daily, contract-driven utilization where owning a grader outright, rather than renting one for each maintenance cycle, stops being a close call. A rented grader shows up without the specific moldboard width, AWD configuration, or ripper attachment a forty-mile contract actually calls for, and the rental invoice for a full season of near-daily use adds up to real money that a financed purchase converts into equity in a machine built exactly to the job instead.

Financing Either One Without Guessing on Payment

BFC arranges equipment financing and leasing for motor graders the same way we do for excavators, dozers, and wheel loaders: term structured around your actual usage and season, not a one-size payment plan. If a grader is going to sit on a jobsite every week rather than get rented twice a season, financing one usually beats paying rental rates indefinitely on a machine you'll need again next month anyway. Our

application process looks at your actual business, not just a credit score in isolation, which matters for contractors whose grading work is seasonal or tied to a handful of larger contracts rather than steady monthly revenue.

If you're also sizing out the rest of a grading or site-development fleet, our

general construction equipment financing guide covers dozers, compactors, and wheel loaders alongside motor graders for contractors building out a full site-prep lineup.