The best farm truck is the one sized to the heaviest trailer it pulls in a normal week, not the biggest badge on the lot. If that trailer is a loaded grain trailer or a stock trailer, look at a heavy duty Ram 2500 or 3500, which you can compare in our new Ram 2500 inventory. If the truck's job is the yard, the fence line and the parts run to town, a used half ton from our used inventory does that work for a lot less money.
This guide goes job by job, for farms across Manitoba, from the Portage plains around Dunn Ram Trucks in Portage la Prairie out to Westman, the Interlake and the Parkland.
Key Takeaways
- Size the truck to the weekly trailer. A loaded grain or stock trailer points to a Ram 2500 or 3500; yard work and light trailers point to a half ton.
- The ratings that count are on the truck. The door opening labels and the window sticker describe that exact truck; cab, box, axle, drive and engine all change them.
- Cummins for pulling, HEMI for simpler care. Ram Canada lists the HEMI as standard on the 2026 Ram 2500 Tradesman and the High Output Cummins as available; only the diesel uses diesel exhaust fluid.
- January needs a plug. Ram Canada's 2026 specifications list a regular duty block heater on the Ram 2500 Tradesman and the Ram 3500 Tradesman.
Here is the short version, job by job, using only what this guide covers.
| Job | Truck and engine | What decides it |
|---|---|---|
| Yard chores, fence line, town runs | Used half ton, gas | Rust, condition and price |
| Grain trailer and stock trailer | Ram 2500 or 3500, Cummins or HEMI | Loaded trailer weight against that truck's ratings |
| Seed and chemical run in April | Half ton or heavy duty, 4x4 | Weight in the box and soft gravel |
| Harvest hauling | Ram 2500 or 3500, Cummins for heavy trailers | Hours under load and the care each engine needs |
The Chore Truck That Never Leaves the Yard
A chore truck checks waterers, hauls a few square bales, pulls the quad trailer and runs to town for a belt when the swather breaks down. None of that needs heavy duty capability, so a used half ton is the sensible tool.
When you shop for one, check four things.
- Rust. Look at the frame, the box floor and the rocker panels.
- The 4x4. Shift into four wheel drive on gravel during the test drive and make sure it engages and releases.
- The block heater. Find the cord at the grille and check that it is in one piece.
- The hitch. If it will pull a trailer, check the receiver and the wiring.
Reconditioning on our used vehicles includes passing the Manitoba safety inspection and our 85 point certified inspection checklist. If the half ton will also be the family and highway truck, compare a new one in our new Ram 1500 inventory.
The Truck That Pulls the Grain Trailer and the Stock Trailer
A grain trailer full of canola headed for the elevator, or a stock trailer of cattle on a gravel road, is a heavy duty job. The choice is the Ram 2500, the three quarter ton, or the Ram 3500, the one ton.
In Ram Canada's 2026 specification pages, the Ram 3500 Tradesman's starting configuration is listed with more payload than the Ram 2500 Tradesman's. That matters on a gooseneck or fifth wheel, because the hitch weight sits in the box and counts against payload. If the 3500 suits you, ask our team whether single or dual rear wheels can be ordered on your build. Our Ram 2500 vs Ram 3500 comparison goes through the step up in detail.
Our advice: get a real number before you choose. The next time the loaded unit crosses the scale at the elevator, write the weight down. Compare it with the trailer ratings in the owner's manual for that truck's configuration and the payload on the label in the driver door opening.
If your trailers have electric brakes, check the window sticker for electronic trailer brake control. Compare one ton trucks in our new Ram 3500 inventory.
Gas or Cummins: The Fuel Question at Harvest
Ram Canada lists the 6.4 litre HEMI V8, at 405 hp and 429 lb ft, as standard on the 2026 Ram 2500 Tradesman, and the High Output 6.7 litre Cummins turbo diesel as available with 1,075 lb ft, which Ram Canada calls best in class available base diesel torque.
At harvest the truck runs under load all day, from a soft field approach to the bin yard to the elevator, and that torque is what pulls a loaded trailer out without drama. The HEMI uses no diesel exhaust fluid. If heavy trailers are a weekly thing, the Cummins earns its place. If the weight mostly rides in the box, the HEMI deserves a hard look. Our Ram 2500 diesel vs gas guide lays out both engines side by side.
There is no official fuel economy figure to shop on. Natural Resources Canada's 2026 Fuel Consumption Guide says pickups with a gross vehicle weight rating over 3,856 kg and an interior bed length of 183 cm or more are not tested. Keep a fuel log through one harvest with your own trailer on your own roads.
The Seed and Chemical Run on Gravel in April
In April the frost comes out of the grid roads, and a road that was hard in March can turn soft overnight. A clay field approach on the Portage plains is slick after rain. This is the run where 4x4 earns its keep, loaded with seed, a tote and a few jugs of chemical.
Weight in the box is payload, not towing, and the engine changes the payload rating, so compare the door labels on two trucks built the same way, one with each engine.
Keep chemical jugs upright and strapped down in the box, never in the cab, and follow the product label's directions for transport.
What a Section Road Does to Ball Joints and Tires
On a section road, washboard, potholes and loose stone hammer the front end, and the parts that hold the wheels in place can wear faster for it. Listen for a clunk over bumps, feel for wandering on the highway, and look for uneven wear on the front tires. Our post on ball joint wear on gravel roads explains what those signs mean.
Check tire cold pressures against the tire and loading information placard in the driver door opening, look for stone cuts in the tread, and when tires are replaced, match the size, load index and speed rating on that placard.
Our service department does front end, steering and suspension repair and four wheel alignment, and supplies and installs new tires. After the last load is in, book a front end and alignment check.
January: The Block Heater and the DEF
A farm truck parked in the yard at minus 30 wants to be plugged in. Ram Canada's 2026 specification pages list a regular duty block heater on the Ram 2500 Tradesman and the Ram 3500 Tradesman, and the window sticker confirms it on a specific truck. For an older truck without one, our service department installs block heaters.
A Cummins adds diesel exhaust fluid to the winter list. Ram's 2022 owner's manual for the 2500 and 3500 says DEF may freeze at or below minus 11°C (12°F), that a heater in the DEF tank works automatically, and that the truck operates normally until the fluid thaws. The manual for your own model year governs.
Box Options: RamBox or a Long Box
RamBox. Ram Canada lists the RamBox cargo management system on the 2026 Ram 1500 as exclusive in its class, with LED lighting and a 115 volt outlet. On a heavy duty truck, Ram Canada's 2026 Ram 3500 page lists it with the Limited; ask our team whether it can be ordered on your build.
A long box. If the box hauls fence posts, rolls of wire and seed totes, floor length is worth more than bins. Ask our team which box lengths, the eight foot box included, can be ordered with the cab you want. On a truck already built, the window sticker names the box.
Pricing and Next Steps
Check our current pricing here for the most up to date pricing information, and see this month's Ram finance offers. If an older truck is going toward the new one, find out what your trade is worth. When you are ready, apply for financing online; any approval, rate or term is on approved credit.
FAQs
What is the best farm truck for pulling a grain trailer?
A heavy duty Ram 2500 or Ram 3500 whose own ratings cover the loaded trailer with room to spare. Weigh the loaded unit at the elevator scale, then compare it with the trailer ratings in that truck's owner's manual and the payload on the label in the driver door opening.
Is a half ton enough for a farm truck?
Yes, for yard chores, the fence line, town runs and light trailers within its ratings, but not for a loaded grain or stock trailer heavier than it is rated for.
Gas or diesel for a farm truck?
Diesel if heavy trailers are a weekly job, gas if the weight mostly rides in the box. On the 2026 Ram 2500, Ram Canada lists the available High Output 6.7 litre Cummins at 1,075 lb ft against 429 lb ft for the standard 6.4 litre HEMI V8, which uses no diesel exhaust fluid.
Does DEF freeze in a Manitoba winter?
Yes. Ram's 2022 owner's manual for the Ram 2500 and 3500 says DEF may freeze at or below minus 11°C (12°F), that a heater in the DEF tank works automatically, and that the truck operates normally until the fluid thaws.
Does a new Ram 2500 come with a block heater?
Yes, on the 2026 Tradesman. Ram Canada's 2026 Ram 2500 specifications list a regular duty block heater on that trim, and the window sticker confirms it on a specific truck. For an older truck without one, Dunn Ram Trucks' service department installs block heaters.
The Bottom Line
The best farm truck is the one matched to its job. Put the yard work on a used half ton, put the grain and stock trailers behind a Ram 2500 or 3500 whose own labels cover the load, choose the Cummins if heavy trailers are a weekly thing, and plan for gravel and January from the day you buy. Start with our new Ram 2500 inventory, or browse used trucks for the chore truck.
Tyler Dunn, Dunn Ram Trucks, Portage la Prairie
