9 Best Self-Propelled Gas Lawn Mowers of 2025

The YARDMAX Select PACE storms in with a 201cc engine and an industry-first 6-speed CVT, letting you match pace to your stride with surprising precision. Its RWD high-wheel setup (8′ front/11′ rear) and rubber tires with spike treads dig in on flat, sloped, and uneven lawns. A 16‑gauge, 1-piece stamped steel deck with MaxFlow spiral airflow boosts mulching, while a single-lever height control covers 1.38’–3.55′. If you’ve battled wheel slip, bogging, or uneven cuts, this machine aims squarely at those pain points.

In the yard, the YARDMAX feels planted and confident on rough patches, with the double ball-bearing wheels keeping rolling resistance low. The 22-inch deck covers ground quickly, and the deck washout port actually makes end-of-day cleanup something you’ll do, not avoid. It mulches thick spring growth cleanly and bags efficiently, though the deck height tops out lower than some competitors, which can matter for overgrown first cuts. Folding storage is straightforward and stable for tight garages.

Compared with the PowerSmart 170cc RWD model, YARDMAX’s CVT drive offers finer speed control and better traction over variable terrain, while the PowerSmart’s single speed is simpler. Versus the SENIX LSSG-H1, the YARDMAX’s heavier-duty deck and MaxFlow airflow win on mulching finesse, though SENIX is easier to handle on slopes for some users. For homeowners wanting a robust, traction-forward mower with nuanced self-propel control, this is a standout; in features and cut quality, it sits above the PowerSmart B0F1C8RMGJ.

PowerSmart’s 21-inch self-propelled mower leans on a Briggs & Stratton 140cc engine to deliver budget-friendly punch without the frills. The rear-wheel drive with 10′ wheels gives it a traction advantage over basic FWD designs, and the steel deck keeps cuts consistent across larger suburban plots. A single-lever, 6-position system spans 1.5’–3.9′, and the 3‑in‑1 deck adapts to bagging, mulching, or rear discharge on the fly. If you’re stepping up from a push mower, the self-propel upgrade instantly reduces fatigue.

In testing on moist turf, the B&S 140cc motor starts reliably and pushes through moderate to tall grass without frequent stalls, though very dense patches benefit from a slower walking pace. The 21-inch deck balances maneuverability and coverage, making it suitable for yards with landscaping obstacles. Mulching is clean at mid heights; for wet clippings, rear discharge keeps momentum. The single-lever height control is quick, but build materials feel lighter than higher-tier options.

Against the SENIX LSSG-M9 (also 140cc B&S), this PowerSmart’s RWD improves hillside tracking, while SENIX’s FWD feels more flickable in tight turns. Versus the AMERISUN 170cc, the PowerSmart trades raw power for lighter handling and lower operating vibration. It’s the pick for value seekers who want dependable self-propel, solid cut quality, and simple maintenance; on feature breadth and hillside poise, it edges the SENIX LSSG-M9.

This 22-inch PowerSmart steps up with a B&S 150cc EX625 engine and RWD self-propel, delivering stronger torque and smoother starts via ReadyStart tech. The durable steel deck and heavy-duty blade target ultra-fine clippings, ideal for a healthier lawn when mulching. Height adjustment spans 1.5’–3.9′ across 6 positions, and a 1.4-bushel bag reduces trips to the bin. It’s a thoughtful bump in capability for mid-size yards needing extra bite.

In real use, the mower holds speed well on inclines and chews through thick spring growth in a single pass more often than 140cc peers. The 22-inch deck improves throughput, while bagging airflow remains consistent as the catcher fills. It’s happiest at mid-height settings for mulching; extremely wet grass benefits from side or rear discharge to maintain momentum. Assembly is tool-free and quick, which is welcome for first-time buyers.

Compared to the YARDMAX 201cc CVT, this PowerSmart is lighter and simpler but can’t match the CVT’s pacing nuance or the YARDMAX’s traction tires. Versus the PowerSmart 140cc model, the 150cc upgrade and wider deck bring meaningful gains in thick grass and time savings. For homeowners balancing efficiency and manageable weight, it hits a sweet spot; on power-to-weight and pass efficiency, it outpaces the PowerSmart B0FCMF796Z.

The SENIX LSSG-H2 brings a Briggs & Stratton 163cc EXi675 engine and variable-speed drive to a compact, user-friendly package. Its 22-inch deck and fold-down vertical storage design make it ideal for smaller garages, while the 3‑in‑1 system includes a generous 19-gallon bagger. With 8′ front/11′ rear wheels and single-lever height adjustment from 1.25’–4′, it’s tuned for precision cuts and easy transitions across yard conditions. If you need simple, clean, and quick, this fits.

On tight suburban lots, the mower’s variable speed helps thread around trees and beds without jerky starts. The EXi engine’s Prime n’ Pull starts reliably, and mulching remains even up to mid-height settings. Bagging performance is a standout thanks to the large capacity, though in very thick or wet patches, you may prefer side discharge to keep pace. The washout port reduces cleanup time and keeps airflow pathways open.

Compared with the SENIX LSSG-H1 RWD, the LSSG-H2’s variable speed and lighter turning feel make it easier for small yards, but it gives up some hillside traction. Against the PowerSmart 150cc model, the SENIX offers better storage and bag capacity, while PowerSmart wins on raw push through dense turf. For small to medium yards prioritizing maneuverability and storage, this SENIX is a smart choice; feature-for-feature, it feels more refined than the PowerSmart B0FCMF796Z in smaller spaces.

The SENIX LSSG-H1 leans into rear-wheel drive confidence with a Briggs & Stratton 163cc EXi675 engine and oversized 11′ rear wheels for better grip on slopes. Its 22-inch steel deck and 3‑in‑1 system handle mulching, side discharge, and bagging with a included 19-gallon bag. A single lever controls 1.25’–4′ cutting height, and the fold-down handle helps the unit tuck into smaller storage spots. It’s built to take the edge off hilly yards and tough turf.

Performance shines on inclines where RWD traction keeps line control steady, minimizing wheel spin. The engine starts consistently with Prime n’ Pull, and the mower maintains forward drive over bumpy ground with less arm fatigue. Mulching is strong at mid-to-high settings; for very tall grass, the side discharge option keeps the deck from clogging. The washout port helps maintain airflow for repeated mulching sessions.

Compared with the SENIX LSSG-H2, the LSSG-H1’s RWD is the better pick for slopes, while the H2’s variable speed appeals to small-lot maneuverability. Against the PowerSmart 170cc RWD, SENIX is slightly more nimble but gives up a bit of brute pull in dense growth. Homeowners with uneven or sloped yards will appreciate the traction-first approach; for hillside steadiness versus the H2, the LSSG-H1 is the more confident climber.

Built for stubborn turf, this PowerSmart packs a 170cc OHV engine with auto choke and RWD self-propel tuned for a steady 3.5–4.1 km/h pace. A 22-inch steel deck and heavy-duty blade aim for ultra-fine clippings, while 3‑in‑1 functionality covers mulch, side discharge, and a 1.4-bushel bag. Two-wheel, 6-position height adjustment spans 1.5’–3.9′. If thick grass has been your nemesis, this is a muscle-forward answer.

In heavy spring growth, the mower keeps momentum where 140cc units often bog, needing fewer second passes. The bag fills evenly without excessive blowback, and mulching quality stays high at mid-height. The single-speed drive is predictable on long runs but less adaptable in tight turns or delicate edging. Folding design reduces storage footprint significantly for sheds with limited space.

Compared with the PowerSmart 150cc model, the 170cc engine’s extra torque is noticeable in dense grass, though weight and single-speed manners feel similar. Versus the YARDMAX’s 201cc CVT, this PowerSmart can’t match the speed variability or traction tires, but it narrows the gap on raw cutting drive. For thick grass and larger yards up to roughly half an acre, it’s a strong pick; in cut-through power, it edges the PowerSmart B0FDJZHWKJ.

BILT HARD goes heavy-duty with a 201cc OHV engine pushing an impressive 9.0 ft‑lb torque into a compact 21-inch deck. The RWD single-speed drive and foam-wrapped handle keep long sessions comfortable, while the 3‑in‑1 deck handles mulch, bag, or side discharge. An 8-position single-lever system ranges 1.2’–3.75′, catering to short summer trims and taller fall recovery cuts. It’s a torque-focused choice for demanding lawns.

Under load, the mower muscles through overgrown sections with fewer slowdowns than mid-power units, even as the bag nears capacity. The narrower 21-inch deck is easier to thread around beds and trees, though it requires an extra pass or two on open fields versus 22-inch competitors. Mulching is robust, especially at mid heights; in very wet conditions, side discharge prevents clumping. Starting is truly hassle-free thanks to the no-choke, no-primer design.

Compared with the PowerSmart 170cc, the BILT HARD’s higher torque hits harder in dense grass, but the smaller deck trades throughput for agility. Versus the YARDMAX 201cc, BILT HARD is simpler and more compact but lacks CVT finesse and traction tires. For those prioritizing raw pull in a smaller footprint, it’s compelling; on engine strength per inch of deck, it edges the PowerSmart B0F1C8RMGJ.

AMERISUN delivers a 170cc OHV workhorse with forced air cooling in a tidy 21-inch format geared for easy storage. Its RWD self-propel lightens the workload on larger or sloped lawns, while the 3‑in‑1 deck and 1.4-bushel catcher support longer mowing stretches. A 6-position height range (1.5’–3.9′) and foldable handle streamline seasonal adjustments and post-mow stowaway. If you’ve been juggling space and capability, this aims for both.

In everyday use, the engine’s cooling keeps performance steady during extended sessions, helpful in warmer climates. The RWD traction stays consistent on mild slopes; for very steep sections, throttle discipline and higher deck settings maintain pace. Mulching quality is strong at mid settings, and the bagger’s capacity feels right-sized for medium lawns. Folding the handle is quick and tool-free, making it renter- and condo-friendly.

Compared with the PowerSmart 170cc, AMERISUN emphasizes storage convenience and similar power, while the PowerSmart feels slightly more planted in thick grass. Against the SENIX H2, AMERISUN trades variable speed for straightforward operation and tighter storage footprint. For owners balancing garage space with reliable performance, it’s a smart pick; on storage convenience plus power parity, it compares favorably to the PowerSmart B0F1C8RMGJ.

The SENIX LSSG-M9 is a lightweight handler with a B&S 140cc engine and front-wheel drive single-speed self-propel. Its 21-inch deck and 3‑in‑1 system come with a 16-gallon bagger, and dual-lever height adjustment offers 1.25’–3.75′ flexibility. 8′ front/11′ rear wheels help stability on uneven turf without adding heft. If you prioritize maneuverability over raw power, this mower plays to your strengths.

On smaller lots, the FWD drive makes pivoting at turns effortless—great for trimming along edges, trees, and garden beds. The engine starts easily and maintains a consistent cut on weekly maintenance schedules; however, very dense or wet growth benefits from a slower pace or side discharge. Mulching is clean at moderate heights, and the lighter frame reduces fatigue over longer sessions. The included accessories and straightforward setup are beginner-friendly.

Compared with the PowerSmart 21-inch RWD 140cc, the SENIX feels lighter and nimbler, while PowerSmart’s RWD holds lines better on slopes. Against the SENIX H2, the M9 trades variable speed for simplicity and an even lighter steering feel. For homeowners craving easy handling and quick turns, it’s a great fit; for hillside control and traction, the PowerSmart B0FCMF796Z has the edge.