Husqvarna 445S 18-Inch 50.2cc Gas Chainsaw vs Husqvarna 450S Rancher 20-Inch 50.2cc Gas Chainsaw
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
Husqvarna 445S 18-Inch 50.2cc Gas Chainsaw
Homeowners who want an 18-inch gas saw that can step up to a 20-inch bar
The 445S has a 50.2 cc, 3 hp X-Torq engine and ships with an 18-inch sprocket-nose bar and SP33G chain, with a recommended range up to 20 inches. Husqvarna lists 11 pounds before bar and chain. The listing's article number matches the maker's page, and the five-year warranty needs a fuel purchase plus online registration.
Published specifications
- Article 970709038 (maker 970 70 90-38), 18 in .325 .050
- 50.2 cc; 3 hp net (ISO 7293); max power at 9,000 rpm
- Bars 13-20 in; SP33G X-Cut chain; Spur 7 sprocket
- 11 lb excluding bar and chain (maker); 14.3 lb (listing)
- Automatic oil pump; chain-oil tank 0.55 US pint
- 2-year residential warranty; up to 5 years with fuel purchase and registration
Strengths
- Listing article number matches Husqvarna's product page
- Accepts bars up to 20 inches, beyond the supplied 18-inch
- Fuel indicator, flip-up cap and retained bar nut
Caveats
- Five-year warranty needs fuel bought with the saw plus online registration
- Amazon's 14.3 lb weight does not match the maker's 11 lb
- No operator's manual attached to the listing
Read the full Husqvarna 445S 18-Inch 50.2cc Gas Chainsaw guide
Husqvarna 450S Rancher 20-Inch 50.2cc Gas Chainsaw
Landowners who want a 20-inch gas saw with a maker-confirmed article number
The 450S Rancher pairs a 50.2 cc, 3.2 hp X-Torq engine with a 20-inch sprocket-nose bar and SP33G chain, and Husqvarna lists it at 11 pounds before bar and chain. The listing's article number matches Husqvarna's page. The five-year warranty needs both a pre-mixed fuel purchase and online registration.
Published specifications
- Article 970702318 (maker 970 70 23-18), 20 in .325 Smart Start
- 50.2 cc; 3.2 hp net (ISO 7293); max power at 9,600 rpm
- Bars 13-20 in; .325 in pitch; .050 in gauge; SP33G chain
- 11 lb excluding bar and chain (maker); 14.9 lb (listing)
- Automatic oil pump; chain-oil tank 0.55 US pint
- 2-year residential warranty; up to 5 years with fuel purchase and registration
Strengths
- Listing article number matches Husqvarna's own product page
- Maker publishes full specs, noise and vibration figures
- Retained bar nut, fuel indicator and flip-up fuel cap
Caveats
- Five-year warranty needs fuel bought with the saw plus online registration
- Amazon's 14.9 lb weight disagrees with the maker's 11 lb
- No operator's manual attached to the listing
Read the full Husqvarna 450S Rancher 20-Inch 50.2cc Gas Chainsaw guide
How to choose between them
Choose the Husqvarna 445S 18-Inch 50.2cc Gas Chainsaw if your situation matches: Homeowners who want an 18-inch gas saw that can step up to a 20-inch bar. Its main caveat: Five-year warranty needs fuel bought with the saw plus online registration.
Choose the Husqvarna 450S Rancher 20-Inch 50.2cc Gas Chainsaw if your situation matches: Landowners who want a 20-inch gas saw with a maker-confirmed article number. Its main caveat: Five-year warranty needs fuel bought with the saw plus online registration.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- Husqvarna US product page for the 445S, article 970 70 90-38, with specifications and FAQ Source for Husqvarna 445S 18-Inch 50.2cc Gas Chainsaw
- Husqvarna 2026 limited warranty document supplied with the listing Source for Husqvarna 445S 18-Inch 50.2cc Gas Chainsaw and Husqvarna 450S Rancher 20-Inch 50.2cc Gas Chainsaw
- Husqvarna US product page for the 450S Rancher, article 970 70 23-18, with specifications and FAQ Source for Husqvarna 450S Rancher 20-Inch 50.2cc Gas Chainsaw
Primary sources checked .