Kubota L3901 vs L4701: Which Should You Buy? (2026)

Thank you for reading this post, don't forget to subscribe!

⚡ Quick Answer

The L3901 and L4701 share the same Standard L platform but the L4701 is a meaningfully bigger machine — larger engine, heavier chassis, wider wheelbase, stronger loader, and more 3-point lift capacity. The L3901 is the sweet spot for 3–20 acres and 5-ft implements. The L4701 earns its keep when you regularly run 6-ft implements, do heavy loader work, or want headroom to grow. The price gap is typically around $5,000 for comparable packages — and forum consensus leans toward “buy once, cry once” with the L4701 if you’re anywhere near the boundary.

The Kubota L3901 and L4701 are both Standard L series tractors, both Tier 4 Final DPF machines, and both available in gear or HST. At a glance they look similar. But put them side by side on paper — or on the job — and the L4701 is a clearly different, more capable tractor in every measurable category.

This guide covers the full spec difference, loader comparison, implement sizing, service intervals, the model succession question, a documented recall both owners should know about, and the honest answer to which tractor belongs on your property.

📌 Model Update — L02 Series Transition

Kubota is transitioning the Standard L lineup to the newer L02 Series. The L3901 is being replaced by the L3902, and the L4701 is being replaced by the L4802. Used L3901 and L4701 tractors will remain plentiful for years, and parts support continues through their successors. If you’re buying new, ask your dealer about L02 Series availability and pricing.

L3901 vs L4701 — Full Spec Comparison

Spec	L3901	L4701
Engine	D1803, 1.8L 3-cyl diesel	V2403, 2.4L 4-cyl diesel
Gross HP	37.5 hp	47.3 hp
PTO HP (gear)	32.1 hp	39.3 hp
PTO HP (HST)	30.6 hp	37.8 hp
Hydraulic Flow (implement)	6.3 gpm	7.8 gpm
Total Hydraulic Flow	~10.1 gpm	~12.5 gpm
3-Point Lift @ 24″	1,433 lb	2,320 lb
3-Point Lift at Ends	1,985 lb	2,870 lb
Hitch Category	Cat I	Cat I
Operating Weight	2,590–2,778 lb	3,219–3,307 lb
Wheelbase	63.3 in	72.6–72.8 in
Ground Clearance	~13.5 in	~15.2 in
Fuel Tank	11.1 gal	13.5 gal
Transmission Options	8F/8R gear or 3-range HST	8F/8R gear or 3-range HST
Emissions	Tier 4 Final — DPF/DOC	Tier 4 Final — DPF/DOC
Succeeded By	L3902 (L02 Series)	L4802 (L02 Series)

💡 Key Takeaway: These are not the same tractor with a different engine dropped in. The L4701 has a larger frame, wider wheelbase, bigger tires, higher ground clearance, stronger loader, and nearly 900 lb more weight than the L3901. It is a genuinely different machine.

Loader Comparison — LA525 vs LA765

The L3901 pairs with the LA525 loader. The L4701 pairs with the LA765. The difference in reach, height, and usable lift capacity is noticeable in real work.

Spec	L3901 — LA525	L4701 — LA765
Max Lift Height (pivot pin)	94.3 in	105.2 in
Height Under Level Bucket	87.6 in	95.7 in
Lift Capacity (pivot pin)	~1,131 lb	~1,684 lb

LA525 (L3901) — Real Limits

Handles mulch, gravel, firewood well
Light pallet work is doable — heavy pallets push the limit
The 350 lb bucket weight eats into usable lift capacity
Grapple work limited to smaller, lighter units

LA765 (L4701) — Real Capability

More reach for dumping into trucks or dumpsters
Heavier loads handled with real margin to spare
Larger grapples and heavier fork frames fit naturally
More stability at height thanks to the heavier chassis

Where the Differences Actually Show Up

PTO Power — Where It Counts

The L4701 delivers roughly 7–9 more PTO hp than the L3901 depending on transmission. In practice this means the L4701 can maintain ground speed and RPM in heavy material where the L3901 must slow down or reduce cutting depth:

L4701 clearly ahead

6-ft rotary cutter in thick grass or brush
Medium to heavy 6-ft tillers
Larger PTO chippers and heavy snowblowers
Long days of sustained PTO work
2-bottom or 3-bottom plows, disc harrows

L3901 handles fine

5-ft rotary cutter on pasture
5–6 ft finish mower on maintained ground
5-ft tiller in lighter soils
Box blade and general grading work
Post hole digging, landscape raking

3-Point Hitch — A Big Lift Gap

With 2,320 lb at 24 inches vs 1,433 lb, the L4701’s 3-point hitch carries nearly 900 lb more at the standard measurement point. This opens the door to heavier box blades, larger disc harrows, heavy ballast boxes, and bigger implements that would be marginal or unsafe on the L3901.

Chassis Weight and Stability

The L4701 is roughly 500–700 lb heavier than the L3901 bare. That weight means more traction when digging into packed soil, better stability with a full bucket at height, and less tendency to lift the rear wheels under heavy front loads. The tradeoff is more turf damage on soft ground and a heavier trailer requirement.

Transmission Feel

Both tractors share the same 8F/8R gear and 3-range HST layout. Operationally they feel similar — the main difference is the power behind the same drivetrain. In gear, the L4701 lets you lug harder with heavy implements before needing to downshift. The L3901’s HST can feel slightly jerky at low speed in tight loader work, a characteristic of the smaller chassis that the L4701 smooths out a little with more mass.

Transportability — An Overlooked Factor

This comes up more in forum discussions than most comparison articles cover. The L3901 is shorter, lighter, and easier to transport — owners sometimes specifically choose it to stay within what their half-ton truck and existing trailer can handle. If you move your tractor frequently between properties or transport to job sites, the L3901’s lower tow weight is a real practical advantage.

Recovery Tow Strap

Keep one on the tractor whether you’re towing implements or recovering a stuck machine. Rated straps handle the weight of either the L3901 or L4701 safely.

View on Amazon →

Implement Sizing Guide

Think of it this way: 5-ft implements are L3901 land. 6-ft implements are L4701 land.

Implement	L3901	L4701
Rotary Cutter	5 ft ideal, 6 ft light conditions only	6 ft comfortable, 7 ft lighter vegetation
Box Blade	5 ft heavy-duty, 6 ft medium-duty	6 ft heavy-duty, aggressive cuts
Tiller	5 ft ideal, 6 ft light soils	6 ft comfortable, heavier units capable
Finish Mower	5–6 ft	6 ft standard, wider possible
Grapple / Forks	Small single-lid grapple, light forks	Medium grapples, heavier fork frames
Disc Harrow / Plow	Light duty only	2–3 bottom plow, medium disc harrow

Who Is Each Tractor Built For?

✅ Choose the L3901 if you…

Have 3–20 acres of mixed lighter chores
Run 5-ft implements as your regular setup
Transport the tractor frequently and want to stay within half-ton tow limits
Need a nimble machine for tight spaces and turf-sensitive areas
Want to save roughly $5,000 vs a comparable L4701 package
Are buying used — strong used market with lots of inventory
Already accepted DPF and want the top of the smaller L tier

✅ Choose the L4701 if you…

Have 10–40 acres with real farm work
Run 6-ft implements as your regular setup
Do serious loader work — logs, heavier pallets, grapple work
Want headroom to grow without buying a second tractor
Do heavy ground-engaging work — tillage, road grading, plowing
Plan to keep the tractor long-term and want to future-proof
Are near the boundary — forum consensus says go bigger

⚠️ The $5,000 Decision — What Forum Owners Say

On TractorByNet, a buyer pricing both packages on a 20-acre property found the gap between an L3901 with 5-ft implements and an L4701 with 6-ft implements was exactly $5,000. Forum replies leaned heavily toward the L4701 — citing larger tires, more robust loader, wider wheelbase, and future-proofing. The consistent advice: “buy once, cry once.”

The regret pattern leans one direction: owners who chose L3901 and later needed more capability wish they’d stepped up. Owners who chose L4701 and occasionally worry about turf damage are much rarer. If you’re anywhere near the boundary, the L4701 is the safer long-term buy.

⚠️ PCV Plug Recall — L3301, L3901, L4701

A documented recall affected specific serial ranges of the L3301, L3901, and L4701. A masking plug in the PCV area may not have been removed after painting during production. If left in place, it can cause crankcase over-pressurization and a potential runaway condition.

Action: If you own or are buying a used L3901 or L4701, confirm recall status with your Kubota dealer by running the serial number. This is the only clearly documented safety campaign for these models.

Service Intervals — Both Models

Both tractors run nearly identical service schedules. The D1803 and V2403 are both Kubota 03-series diesels and share some filter part numbers across the family — but they are not the same engine and critical parts are model-specific. Always verify your exact part number before ordering.

Service Item	First Service	Regular Interval
Engine oil & filter	50 hours ⭐	Every 100–200 hours
Hydraulic/transmission filter	50 hours ⭐	Every 200–300 hours
Hydraulic fluid	—	Every 200–300 hours
Fuel filter	—	Every 200 hours or annually
Air filter	Inspect at 50 hours	Inspect every 100 hours, replace as needed
Valve adjustment	—	Several hundred hours — per operator manual

🔧 Service Parts — L3901 & L4701

L3901 Oil Filter 2-Pack ⭐

Change at 50 hours and every 100–200 hours after. Buying in 2-packs keeps you stocked without scrambling.

View on Amazon →

Shell Rotella T6 5W-40

Full synthetic diesel oil for both the D1803 and V2403 engines. Handles temperature extremes well.

View on Amazon →

Kubota Hydraulic Filter

Critical at the 50-hour break-in on both models. Verify your exact part number before ordering.

View on Amazon →

Fuel Filter 2-Pack

Replace annually or every 200 hours. Verify fitment for your model year before ordering.

View on Amazon →

OBD2 Diesel Scan Tool

Read DPF fault codes on both models. Essential before regen issues escalate to dealer service.

View on Amazon →

⚠️ Affiliate Disclosure: We may earn a commission from qualifying purchases at no extra cost to you.

DPF — Both Tractors Have It

Both the L3901 and L4701 are Tier 4 Final tractors with DOC + DPF after-treatment. Neither is a pre-emissions machine. Both use the same regen strategy: automatic regeneration at operating RPM when the ECU detects sufficient soot load.

L4701 owners report first visible regens around 40–60 hours if the tractor sees a lot of low-load or idle time. The fix is the same on both models: run at working RPM, let regens complete without cancelling, and avoid chronic short-cycle low-RPM use.

For full DPF guidance see our Kubota DPF Cleaning Guide →

Price Comparison — New & Used

Configuration	L3901	L4701
New with loader (base)	~$22,000–$28,000	~$27,000–$35,000
Package deal (loader + implements + trailer)	~$27,000–$33,000	~$34,000–$40,000
Used (lower hours, with loader)	~$17,500–$28,000	~$22,000–$33,000

Both models hold value extremely well. The L3901 benefits from a very broad buyer pool. The L4701 holds more absolute dollars at resale. Use our Kubota Financing Calculator to run the numbers before you visit the dealer.

Frequently Asked Questions

QIs the L3901 and L4701 the same tractor with a different engine?

No — and this is a common misconception. The L4701 has a larger frame, wider wheelbase, bigger tires, more ground clearance, stronger loader, and nearly 900 lb more weight than the L3901. The engine difference is real but the chassis and platform differences are equally important. An experienced owner who switched from a 35-hp compact to an L4701 described it as “a completely different tractor.”

QAre L3901 and L4701 filters interchangeable?

Partially. Both use Kubota 03-series diesels and some fuel filter elements and oil filters share part numbers across the family. However, the engines are different — D1803 vs V2403 — and critical engine and chassis parts are model-specific. Don’t assume filters are the same without confirming the exact part number for your model.

QIs the L4701 being discontinued?

Yes — the L4701 is being replaced by the L4802 in Kubota’s new L02 Series, just as the L3901 is being replaced by the L3902. Used L4701 tractors will remain widely available and parts support continues through the successor platform. If buying new, ask your dealer about L4802 availability and pricing in your area.

QWas there a recall on the L3901 and L4701?

Yes. A documented recall affected specific serial ranges of the L3301, L3901, and L4701 for a PCV plug that may not have been removed after painting. This could cause crankcase over-pressurization and a potential runaway condition. If you own or are buying a used unit, confirm recall status with your Kubota dealer by running the serial number.

QWhat size rotary cutter can the L4701 run?

A 6-ft rotary cutter is the comfortable standard match for the L4701. Many owners run a 7-ft cutter in lighter vegetation and pasture conditions. For heavy brush or dense grass, staying at 6 ft keeps you in the optimal power band without overloading the PTO.

QWhich holds resale value better — L3901 or L4701?

Both hold value extremely well. The L3901 benefits from a very large buyer pool — small acreage owners, landscapers, hobby farmers — which keeps used demand strong and prices close to new in many markets. The L4701 holds more absolute dollars at resale, while the L3901 may hold a slightly stronger percentage of original cost given its lower starting price. Either way, both are top-tier for resale in the compact tractor market.