John Deere 4620 Specs, Reviews & Used Price Canada (2026)

The John Deere 4620 is where Deere’s turbo experiment grew up. Built for just two model years (1971–1972) and only 6,928 units, it took the 4520’s platform and added the missing piece — an intercooler — making it the company’s first intercooled row-crop tractor and lifting the 404 cubic inch six to a Nebraska-tested 135.7 PTO horsepower. In one 1971 stroke, Deere fixed the thermal compromise of its first turbo, restored the compression the 4320 would have to give up, and quietly introduced the technology that every 4630, 4640, and modern turbo-diesel after it would take for granted.

Status disclosure up front: the 4620 is long out of production — Generation II’s 4630 took over the intercooled slot for 1973 — and with fewer than seven thousand ever built, today’s market is the thinnest in this entire family: a handful of Canadian listings at any time, collector-dealers holding small stables of them, and a buyer pool that increasingly knows exactly what it’s looking at. This page is written for that buyer, and for the working farm that stumbles on one priced as “just an old Deere” — because at current money, the 4620 is quietly the most tractor per dollar in the late New Generation.

Aglist quick take: The 4620 completes the trio the John Deere 4520 started and the John Deere 4320 paralleled — the pioneer, perfected. The honest framing: like the 4640 that inherited its technology, the 4620’s PTO is 1,000-rpm only (a genuine implement gate), its reported overheating cases trace overwhelmingly to dirty radiators and turned-up fuel settings rather than design, and its 6,928-unit scarcity cuts both ways — collector gravity is rising, but model-specific parts take patience and incomplete induction systems (de-turboed or intercooler-bypassed units exist in the wild) make verification item one.

Quick Verdict — Who the 4620 Is For

Buy it if: you want the most refined heavy tractor of the New Generation — 135 tested horses of intercooled, low-stress torque for big tillage, 1,000-rpm PTO implements, and grain-cart duty — at roughly CAD $14,000–$34,000 for working examples, or you’re a collector completing the turbo story: pioneer 4520, row-crop 4320, perfected 4620, ideally parked side by side.

Skip it if: your implement shed includes 540-rpm tools (the 4620 never had that shaft — the 4320 and 4520 did), you want the deep parts-and-supply market of the mass-produced models, or Generation II comfort matters — in which case the intercooled formula’s mature heirs, the 4630 and the John Deere 4640, await with Sound-Gard cabs.

Full John Deere 4620 Specifications

Compiled from John Deere technical literature and Nebraska Tractor Tests 1064 and 1073 (1971), cross-checked against reference sources. A two-year, low-volume run — verify induction-system completeness, transmission, and configuration on any unit.

Category	Spec	Value
Equipment type	Row-crop tractor	New Generation series; Waterloo, Iowa
Production	Model years	1971–1972 only
	Total built	6,928 — the scarcest model in this family
Historical note	Significance	Deere’s first intercooled row-crop — the intercooled 404 debuted in 1971 in the articulated 7020 and this tractor
Engine	Type	John Deere 404 cu in (6.6 L) inline-6, turbocharged and intercooled
	Bore × stroke / compression	4.25 × 4.76 in. (108 × 121 mm) / 16.4:1 — restored above the non-intercooled 4320’s 15.7:1
	Rated power / speed	135 HP @ 2,200 rpm
Tested power	PTO — Power Shift	135.6 HP (Nebraska Test 1064, April–May 1971)
	PTO — Syncro-Range	135.7 HP (Nebraska Test 1073, June 1971)
Transmission (option 1)	Syncro-Range	8F/2R, partially synchronized, dry disc clutch
Transmission (option 2)	Power Shift	8F/4R full powershift, hydraulic wet disc
Drive	Options	2WD; hydraulic front-wheel assist — among the first big Deeres so equipped
Steering / brakes	Type	Hydrostatic power steering; hydraulic wet-disc brakes
Hydraulics	Type	Closed centre; 16–18 gal system by transmission
3-point hitch	Category	III / II
PTO	Type / speed	Independent; 1,000 rpm only
Fuel	Tank	50 gal (189 L)
Weight	Shipping / operating / max ballast	12,980 lb / up to 14,930 lb / 18,640 lb
Dimensions	Wheelbase / length / width	106.5 in. / 170.7 in. / 95.8 in.
Operator platform	Options	Open station standard; 2-post Roll-Gard + canopy or cab optional
Tires	Typical	18.4-38 / 20.8-38 rears; duals optional
Service note	Oil	Spin-on filter; 250-hr intervals (shorter in severe duty)
Succession	Replaced / replaced by	Updated from the 4520; succeeded by the Generation II 4630 (1973)

Both gearboxes, both tested — the dead heat, first edition. Nebraska ran the 4620 twice in 1971: Power Shift in April–May (135.6 PTO HP), Syncro-Range in June (135.7). One-tenth of a horsepower apart — the same verdict the lab would deliver on the 4440 seven years later. On this family, transmission choice is about your work; the dyno declines to vote.

Owner Reviews & Ratings on Aglist

Nebraska’s numbers are from 1971; the ownership base — 6,928 units thinned by five decades — is small, knowledgeable, and exactly whose experience matters here. As owners share their machines on Aglist, the rating system tracks:

• Induction integrity — turbo and intercooler present, plumbed, and healthy; factory fuel settings
• Reliability — the intercooled 404’s record, cooling condition, overhaul history
• Transmission — Syncro engagement or Power Shift condition under load
• Parts and service — real-world sourcing on a 6,928-unit run
• Value — worker economics versus rising trio-collector gravity

If you own or run a 4620 in Canada, please leave a star rating and a short note below — on a tractor this scarce, every documented ownership account materially helps the next buyer.

John Deere 4620 vs the Alternatives

The late-New-Generation turbo trio, complete — every column now reviewed on Aglist.

Spec	John Deere 4520	John Deere 4620	John Deere 4320
Years	1969–1970	1971–1972	1971–1972
Role	The pioneer	The pioneer, perfected	Turbo in the row-crop chassis
Engine	404 turbo, 16.4:1	404 turbo-intercooled, 16.4:1	404 turbo, 15.7:1
PTO HP (tested)	≈123	135.6–135.7	116.55
PTO speeds	540/1000	1000 only	540/1000
Transmissions	Syncro or Power Shift	Syncro or Power Shift	Syncro only
Production	Low, two years	6,928	21,485
Typical Canadian range	$12K–$40K by grade	$14K–$47K by grade	$12K–$45K by grade

Where the 4620 wins: it’s simply the best tractor of the three — a dozen more tested horses than the John Deere 4520with the thermal problem solved, twenty more than the John Deere 4320 with the Power Shift the 4320 never offered, and the scarcest production number in the family for collectors keeping score.

Where the math flips: the 540 PTO. Farms running mixed-speed implements need the 4320 or 4520; the 4620 is a 1,000-rpm tractor, full stop. And buyers wanting this exact engine formula with a heated cab and a five-year production run should read the John Deere 4640 — the intercooled idea, matured — while the era’s value baseline remains the John Deere 4020.

Real-World Performance

Engine — the intercooler changes everything

Cooling the charge air let Deere run the turbo 404 at the 4520’s original 16.4:1 compression while making more power more gently — denser intake charge, lower thermal stress, easier starts, and the low-rpm lugging character that made the intercooled 466 descendants legendary. The ownership evidence agrees: reported 4620 overheating traces overwhelmingly to blocked radiators or fuel settings screwed past factory — the pump-turning temptation is real on an engine with this much headroom — rather than to the design. The disciplines: clean fins religiously, factory fuel settings unless documented and cooled accordingly, turbo oil habits (schedule, idle-down), and one 4620-specific verification before any money moves — confirm the complete factory induction path, turbo through intercooler, is present and plumbed, because simplified and de-turboed units exist in the wild and are worth accordingly less.

Transmissions & the FWA footnote

Both boxes, both Nebraska-proven, both exam-tested the family way: every Syncro station engaged cleanly and held under load; every Power Shift gear loaded with zero slip and a Hy-Gard paper trail. The 4620’s quiet historical footnote is drive: it was among the first big Deeres offered with (hydraulic) front-wheel assist — rare then, collectible now, and worth a premium when factory-documented.

Weight, hitch & implements

At up to 14,930 pounds operating (18,640 ballasted), the 4620 is the heaviest tractor in the New Generation story — an asset in exactly the straight-line work it was built for: big discs and chisels on the Category III/II hitch, 1,000-rpm harvest and forage tools, grain carts, and land packing, with 50 gallons of fuel matching the mission. The 1,000-only PTO is the compatibility gate to clear before purchase; everything else about the implement math is generous.

Canadian Winters

The intercooled engine is actually the family’s easiest cold starter — denser charge, healthy compression — and the formula is standard: block heater primary, strong batteries for 6.6 litres, winter fuel, gentle turbo minutes stone-cold, idle-down at shutdown. Open station (or a period Roll-Gard cab) sets the comfort ceiling; our prairie winter equipment operation guide covers the rest.

Common Problems & Reliability Notes

Transparency note: patterns across a five-decade, 6,928-unit population — small enough that individual histories dominate averages, and hour meters remain anecdotes.

Induction completeness is item one. Turbo present and healthy (shaft play, intake oil, smoke), intercooler present and plumbed, no bypass improvisations. An incomplete 4620 is a different, cheaper machine.

Overheating = housekeeping or hot-rodding. Dirty radiators and turned-up pumps explain the reported cases; a clean cooling system at factory fuel settings runs cool by design. Check fins, gauge honesty, and ask directly whether the pump has been touched.

Power Shift condition equals value. The family rule, sharpened by scarcity — a slipping pack on a 6,928-unit tractor is a specialist search, not just a bill. Load-test everything.

Parts take patience. Engine internals ride the abundant 404/6.404 ecosystem; 4620-specific intercooler plumbing, sheet metal, and trim reward the patient hunter — and make complete, original units worth stretching for. Aftermarket safety additions (Iron Bull-type roll guards) appear on units and are practical positives, originality asterisks.

Weight realities. Front-end wear, tire costs at 20.8-38, and soft-ground respect are design facts on the family’s heaviest member — walk the front axle and price the rubber.

The perfected pioneer endures. Cooled, factory-fueled, and shifted with care, 4620s cross five decades intact — and the population that didn’t get that care has largely already left, which is half of why survivors carry gravity.

Used Price Range in Canada (2026)

The thinnest market in this family — currently about six Canadian listings spanning $11,622 to $46,487, with the North American average near $29,000 and collector-dealers (four-at-a-time stables exist) increasingly setting the ceiling:

• Projects, incomplete-induction units, high-hour mysteries: roughly CAD $9,000–$14,000
• Honest workers — Syncro 2WD, verified induction, cooled and documented: roughly CAD $14,000–$22,000
• Solid units — overhaul paperwork, Power Shift, duals, straight tin: roughly CAD $22,000–$34,000 — the market’s centre
• Exceptional and rare — fresh restorations, low genuine hours, factory FWA: CAD $34,000–$47,000+, with trio-completing collectors pushing the top

Value movers: induction completeness and factory fuel settings (documented), transmission health under load, overhaul paperwork, and drive rarity. Set alerts on MarketBook, AgDealer, and BigIron rather than expecting standing supply — and when a right one appears, it will not wait.

Best Use Cases in Canadian Conditions

Heavy straight-line field work (SK / AB / MB). Big tillage, land packing, and grain-cart duty where 15,000 ballasted pounds and 135 intercooled horses earn their keep. 1,000-rpm PTO implements. Forage harvesters, big rotary cutters, and harvest tools native to the large shaft. Collecting — the trio’s crown. Scarcest production, most refined engineering, and the historical “first intercooled row-crop” line: the 4620 is the piece that finishes the 4520–4320 story. The sleeper working buy. At worker-grade prices, more tested horsepower per dollar than anything else in the late New Generation. Not ideal for: 540-rpm implement fleets, loader-first duty, small fields, or buyers unwilling to verify an induction system before paying.

Maintenance & Service

• Daily: engine oil, coolant, air cleaner, tire pressure, grease points — and radiator/intercooler fins as a habit, not a chore
• Turbo-intercooler discipline: oil and spin-on filter at 250 hours or better; idle-down after hard pulls; investigate new smoke or whistle immediately; leave the fuel settings at factory
• Fluids: genuine JD Hy-Gard (or true equivalent) in the transmission-hydraulic system — the Power Shift and wet brakes depend on it
• Transmission care: clutch free-play and station engagement (Syncro) or pressure checks per the manual (Power Shift)
• Winter: block heater, load-tested batteries, winter-blend diesel; gentle cold minutes and idle-down shutdowns
• Documentation habit: on a 6,928-unit tractor, every receipt and photo materially adds to the machine’s value

Engine internals ride the deep 404-family supply; budget patience — and pay premiums cheerfully — for 4620-specific induction and trim components.

Where to Find a Used John Deere 4620 in Canada

Thin, watchful supply: MarketBook and AgDealer dealer listings (a handful at a time), BigIron and consignment auctions, collector-dealer stables, and estate sales where the family didn’t know what Grandpa had. Set alerts and be ready. Inspection priorities, in order: verify the complete factory induction system — turbo, intercooler, plumbing — against parts diagrams before anything else; run the turbo exam and ask directly about fuel-pump settings; check cooling honestly, fins to thermostat, on the engine whose reputation depends on it; identify and load-test the transmission (every Syncro station, or every Power Shift gear with the fluid story); confirm the 1,000-rpm PTO engages and matches your implements; document drive type (factory FWA is a find); and weigh paperwork over the tach entirely. A complete, cooled, factory-fueled Power Shift with overhaul receipts is the working prize; a documented factory-FWA survivor is the collection piece — and at six listings a country, either one justifies the drive.

John Deere 4620 FAQ

How much horsepower does a John Deere 4620 have? 135.6–135.7 PTO horsepower as tested at Nebraska in 1971 — Test 1064 (Power Shift) and Test 1073 (Syncro-Range) finished a tenth of a horsepower apart — from the turbocharged and intercooled 404 cu in six at 2,200 rpm.

Was the John Deere 4620 really Deere’s first intercooled tractor? The intercooled 404 debuted in 1971 in two machines: the articulated 7020 (which reached Nebraska’s track first) and the 4620 — making the 4620 Deere’s first intercooled row-crop tractor and the direct technological ancestor of the 4630 and 4640.

How many John Deere 4620s were built? 6,928, across model years 1971 and 1972 — the scarcest tractor in this entire family, which increasingly shapes its collector market.

Does the John Deere 4620 have a 540 PTO? No — 1,000 rpm only, like the 4640 that inherited its engine formula. Farms with 540-rpm implements should shop the 4520 or 4320 instead.

Syncro or Power Shift on a 4620? Both were offered and Nebraska tested both to a statistical tie — choose by work (Power Shift for direction changes, Syncro for simplicity) and buy condition under load, not configuration.

Why do some 4620s overheat? The reported cases trace to blocked radiators or fuel settings turned past factory — not the design, whose intercooler exists precisely to manage heat. A clean cooling system at stock fuel runs cool; verify both on any candidate.

What is a John Deere 4620 worth in Canada? As of 2026: roughly CAD $14,000–$22,000 for honest verified workers, $22,000–$34,000 for solid documented units (the market centres near $29,000), and $34,000–$47,000+ for restorations and rarities like factory front-wheel assist — with incomplete or project units below $14,000. Supply is a handful of listings at any time.

What replaced the John Deere 4620? The Generation II John Deere 4630 in 1973 carried the intercooled formula forward, and the 40-series 4640 perfected it — the 4620’s two model years were the technology’s proving ground.

Related Models on Aglist

• John Deere 4520 — the pioneer this tractor perfected
• John Deere 4320 — the parallel answer in the row-crop chassis
• John Deere 4640 — where the intercooled formula matured
• John Deere 4020 — the era’s value baseline
• All tractors on Aglist — full tractor coverage

Disclaimer

Specifications compiled from John Deere technical literature and Nebraska Tractor Tests 1064 and 1073 (1971), cross-checked against reference and market sources; the 4620 was built for two model years in a 6,928-unit run with two transmissions, optional front-wheel assist, and multiple operator platforms, and surviving units vary substantially — including examples with modified or incomplete induction systems and non-factory fuel settings, which materially affect value and reliability. The John Deere 4620 is a discontinued model — availability is limited to a thin used and collector market, and pricing reflects indicative Canadian ranges anchored to current listing data that vary by region, condition, configuration, induction completeness, and documentation. Reviews on Aglist are written by real users and moderated for spam — opinions are personal. Always confirm specifications and condition against the operator’s manual, parts diagrams, a serial-number decode, and a thorough physical inspection — led by induction-system verification and transmission load-testing — before committing to any specific machine.

John Deere 4620 Reviews & Ratings