Senix

SENIX 20" 4QL® 49cc 4-Cycle 18" Gas Chainsaw

|52 ratings
Item # 990484267
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Smart summary

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  • Powerful 4-Cycle Engine: Powered by a high-performance 49cc 4-cycle full crank engine, this chainsaw delivers exceptional torque and cutting power with low vibration, eliminating the need to mix gas and oil.
  • Cleaner Operation: Engineered for environmental efficiency, it runs with lower emissions, produces less smoke, and offers reduced noise levels, ensuring a smoother and quieter operating experience than 2-stroke models.
  • Robust Cutting Bar: Features an 18-inch heavy-duty bar and chain, constructed with trusted components for achieving fast, clean, and precise cuts through hardwood, trees, and various tough yard debris.
  • Effortless Starting: Equipped with an Easy Start System that includes auto choke and compression release technology, enabling convenient and reliable starting under diverse operating conditions.
  • Operator Safety: Designed with essential safety features including automatic chain lubrication for continuous performance and a kickback chain brake to protect the user during operation.
SENIX 20" 4QL® 49cc 4-Cycle 18" Gas Chainsaw
SENIX 20" 4QL® 49cc 4-Cycle 18" Gas Chainsaw
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About this item

Product details

The SENIX CS4QL-L1 49cc Gas Chainsaw delivers serious cutting power without the mess of mixing fuel. Its high-performance 4-cycle engine gives you more torque, less smoke, and lower emissions than traditional 2-stroke chainsaws — all while running quieter and smoother. Whether you’re cutting firewood, clearing storm damage, or tackling weekend yard work, the 18" slices through hardwood with precision and speed. Engineered for both performance and safety, the CS4QL-L1 49cc gas chainsaw features automatic chain lubrication, easy-pull starting, and a kickback chain brake to protect you while you work. If you want pro-grade performance without pro-grade headaches, this is your chainsaw. All SENIX 4QL gas powered chainsaws are backed by our 2-year limited warranty for your peace of mind.
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Specifications

  • Automatic Chain Oiler — Ensures consistent lubrication for smooth cutting and extended chain life.
  • Chain Brake Safety System — Instantly stops the chain during kickback for enhanced user protection.
  • Includes Bar Cover and Tool Kit— Comes fully equipped and ready for action right out of the box.
  • 2-Year Limited Warranty — Provides peace of mind with reliable support and long-term durability.

Member ratings & reviews

4.6 out of 5 stars
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52 ratings52 reviews
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  1. 5 stars71% (37)
  2. 4 stars23% (12)
  3. 3 stars4% (2)
  4. 2 stars0% (0)
  5. 1 star2% (1)
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Showing 1-3 of 52 reviews

May 23, 2026
Robert
5 out of 5 stars review

Best bang for the Buck !!

Leary because of price point, but I only needed a saw for home use. I had a 70 foot tree cut down and they left me with some very large pieces that needed to be cut to fireplace size. Ordered the SENIX 20 18" four stoke motor, added gas, chain oil and the engine oil that came with the saw. Fired up and cut for 3 hours straight, did not faulter!! idled great without shutting off, easy to handle and lightweight. I would recommend this a to everyone needing a light duty big saw. Cleaned it up, put in the box and its ready for the next job.

Helpful?5K5QDROCMWFC18839409213
Jul 15, 2023
Joe
5 out of 5 stars review

Verified Purchase

You cant go wrong with this saw.

Best chainsaw I've ever had, and i have had and used them all i used to do right away work for GA Power and EMC way back, I've used every brand of saw you can think of, despite what you see and hear on YouTube and other videos about products it runs great cuts great, not even a half pull on rope it fires right up I've been cutting over 24" pine with fat lightered center and it cuts like butter , I do recommend replacing the stock factory chain its deasent but has a 2 to 3" gap / skip in it where put together, Oregon chains are really good.

Review from walmart.com
Helpful?5K5QDROCMWFC18839409213
Oct 13, 2023
Matt
5 out of 5 stars review

Verified Purchase

Best saw for the price.

Better than anything in its price range. Not as goon proof as a two stroke saw but just as good as anything I’ve tried in the similar power range. No issues with needing tuning or anything. Solid and reliable. Weight is good for me and maneuverability was above par.

Review from YAT USA, Inc
Helpful?5K5QDROCMWFC18839409213

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