TL;DR: Choosing the right plow depends on soil type, tractor horsepower, and tillage goals. Moldboard plows work best for heavy residue and clay soils, disc plows handle rocky or dry ground, and chisel plows preserve topsoil for conservation tillage. Match plow width to your tractor's horsepower before buying, and always verify shear pin and bottom wear before purchase.
Buying the wrong plow costs you more than money. It costs you a season. A plow mismatched to your soil type or tractor horsepower doesn't just underperform — it can stall your tractor, snap shear pins, or leave fields unevenly tilled. Before you shop, know your soil, your horsepower, and your tillage goal.
Three plow types dominate the market: moldboard, disc, and chisel.
Choose a moldboard plow if you're working heavy residue and want a clean seedbed. Choose a disc plow if your ground is rocky or excessively dry. Choose a chisel plow if soil conservation and moisture retention matter more than a fully inverted seedbed.
Undersizing your tractor for a plow's width is the fastest way to burn out a clutch or stall mid-field. As a general rule, each plow bottom (14-16 inch) requires 15-35 horsepower depending on soil density and depth. A 4-bottom plow, for instance, typically needs a tractor in the 90-140 horsepower range.
Before buying, check three specs against your tractor:
Skipping this check is how buyers end up with equipment sitting unused in a shed.
Used plows hide their wear in places buyers don't think to look. A plow that looks structurally sound can still have worn-out working parts that cost thousands to replace.
Inspect these components before you commit:
A plow with 500 acres of use and a full maintenance log is a safer buy than one with unknown history and a fresh coat of paint. Paint hides rust. Records don't lie.
A new plow costs more upfront but comes with a warranty and zero unknown wear. A used plow saves 40-60% of the purchase price but may need new bottoms or bearings within the first season ($500-$2,000 depending on plow size).
Choose new if you're running high annual acreage where downtime costs more than the price difference. Choose used if you're a smaller operation or adding a backup implement, and you're prepared to inspect it thoroughly or budget for near-term parts.
The cheapest plow on the lot isn't a deal if it's wrong for your soil or too small for your tractor. Match plow type to soil condition, confirm horsepower and hitch compatibility, and inspect wear parts before signing anything. That sequence turns a plow purchase into a decision that pays off for seasons, not just one.
Know your acreage and soil type. Match the plow to the job.
How much does an agricultural plow cost?
New moldboard plows typically range from $3,000 for a 2-bottom unit to over $15,000 for a 5- to 6-bottom model. Used plows generally sell for 40-60% less, depending on wear and bottom condition.
How long does a plow last?
With proper maintenance, a plow frame can last 20+ years. Wear parts like shares, moldboards, and coulters typically need replacement every 300-800 acres, depending on soil abrasiveness.
Can one plow work for all soil types?
No. Moldboard plows suit heavy clay and residue, disc plows handle rocky or dry ground, and chisel plows preserve soil structure. Using the wrong type reduces efficiency and increases wear.
Is a used plow a risky purchase?
Not if inspected properly. Check shear pins, bottom wear, and frame welds before buying. A documented maintenance history significantly lowers the risk of hidden damage.
What horsepower do I need for a 3-bottom plow?
Most 3-bottom plows require a tractor with 60-90 PTO horsepower, depending on soil density and plowing depth.