STIHL MS170 Review 2026: Is It Worth It — And What Are the Best Alternatives on Amazon?
The STIHL MS170 consistently appears on "best entry-level chainsaw" lists — and for good reason. Its 30.1cc engine is reliable, the build quality is genuine STIHL, and the weight (8.6 lbs with bar) makes it accessible even for users who've never owned a gas chainsaw. If you're considering it as your first gas saw, the reputation is well-earned.
There's one important catch for US buyers: STIHL does not sell through Amazon or any major online retailer. You must buy from an authorized STIHL dealer. This is not an accident or a temporary situation — it's a deliberate distribution policy STIHL has maintained for decades to ensure proper setup, warranty service, and customer support through trained local dealers.
This review does two things: gives you an honest, complete analysis of the STIHL MS170 so you know exactly what you're buying, and identifies the best Amazon-available alternatives if dealer access is inconvenient or you want Prime shipping and returns. Both the Husqvarna 135 and Echo CS-310 are genuine quality chainsaws worth serious consideration.
Contents
STIHL MS170 Specifications
Engine Displacement
30.1cc two-stroke
Power Output
1.4 hp (1.0 kW)
Bar Length (standard)
12 inches (30 cm)
Weight (with bar/chain)
8.6 lbs (3.9 kg)
Fuel Tank
5 oz (145 ml)
Fuel Mix
50:1 (89+ octane gasoline + STIHL HP oil)
Chain Brake
Yes — inertia activated
Starting System
Conventional recoil / ErgoStart (C-BE model)
Warranty
2 years consumer (dealer purchase required)
USER RATING: ★★★★★ 4.7/5 (4,890 reviews)
Important: STIHL MS170 on Amazon
STIHL does not authorize Amazon sales in the US. Any "new" STIHL listing on Amazon is from an unauthorized third-party seller. These saws may be genuine products, but they typically do not carry STIHL warranty coverage, may not be properly set up, and have no local dealer support. We recommend buying directly from an authorized STIHL dealer — use stihl.com to find your nearest location.
STIHL Dealer-Only Policy — What It Means for You
STIHL's decision to sell exclusively through authorized dealers is a deliberate brand strategy. Here's what it means in practice and why it matters:
Benefits of Buying from a Dealer
- ✓ Full STIHL warranty coverage (2 years consumer)
- ✓ Professional setup and chain tensioning before pickup
- ✓ Local service — dealer handles warranty repairs
- ✓ Expert advice on bar size, accessories, and maintenance
- ✓ Access to genuine STIHL parts, chains, and oil
- ✓ Confidence you're getting an authentic, properly configured saw
Disadvantages vs Amazon Purchase
- ⚠️ No Prime shipping — you must physically visit the dealer
- ⚠️ Dealer availability varies by location — rural areas may have limited options
- ⚠️ No easy online returns — returns go through the dealer
- ⚠️ Typically no discount pricing — STIHL enforces MAP pricing at dealers
- ⚠️ Limited comparison shopping — can't easily compare dealer to dealer on price
Bottom line: If you have a STIHL dealer within 20–30 minutes, buying in-person is worth it. The warranty, setup, and support are genuine advantages. If the nearest dealer is an inconvenient distance away, or if you need the convenience of Amazon's return policy, the Husqvarna 135 and Echo CS-310 are legitimate quality alternatives available with Prime shipping.
STIHL MS170 — Pros & Cons
Key Strengths
- ✓STIHL brand reliability: Widely considered the gold standard for chainsaw quality and dealer support. The MS170 inherits that reputation.
- ✓Lightweight (8.6 lbs): One of the lightest gas chainsaws in its class. Accessible for smaller-framed users or those new to gas saws.
- ✓Easy to operate: Simple controls, intuitive choke system, manageable vibration level for occasional users.
- ✓Strong dealer support network: STIHL has over 9,000 authorized dealers in the US — local parts, service, and expertise readily available.
- ✓Reliable engine: The 30.1cc motor is time-tested and predictable. No surprises after years of production.
Drawbacks
- ✗Small engine (30.1cc): Significantly less powerful than the Husqvarna 135 (40.9cc). Struggles with logs over 10 inches in dense hardwood.
- ✗Short bar (12 inches standard): The shortest bar of any saw in this comparison. Limits cutting capacity compared to 14–16" competitors.
- ✗Not available on Amazon: Dealer-only in the US means no Prime shipping, no online price comparison, no easy returns.
- ✗Small fuel tank (5 oz / 145ml): The tank runs dry faster than larger competitors — expect 20–30 minutes of intensive cutting before refueling.
- ✗Limited to light-duty tasks: Best positioned for occasional homeowners with small properties. Regular heavy use is better served by a 40–50cc saw.
Cutting Performance & Best Applications
Where the STIHL MS170 Excels
- ✓ Small branch pruning: Branches and limbs up to 6–8 inches — the saw is in its element here. Fast, precise, effortless.
- ✓ Light storm cleanup: Clearing fallen branches from paths and driveways. The MS170 handles this kind of work without breaking a sweat.
- ✓ Occasional firewood: Softwood logs up to 10 inches, 2–5 times per year. Not ideal for regular firewood production but adequate for casual cutting.
- ✓ First gas chainsaw: The lightweight and manageable power make it a good entry point for new gas saw users building experience before stepping up to a larger model.
Where the MS170 Reaches Its Limits
- ✗ Large hardwood logs: Dense oak or hickory above 10 inches puts the 30.1cc engine under stress. Chain speed drops and cutting requires more manual guidance.
- ✗ Regular heavy firewood production: If you're cutting 2+ cords of firewood seasonally, the small tank (145ml), limited displacement, and 12-inch bar are genuine constraints. The Husqvarna 135 is a better tool for this role.
- ✗ Professional or semi-professional use: Daily use will wear this engine faster than it's designed for. STIHL's warranty reflects this — 2 years consumer, significantly less for commercial.
STIHL MS170 vs Husqvarna 135 vs Echo CS-310
| Feature | STIHL MS170 | Husqvarna 135 | Echo CS-310 |
|---|---|---|---|
| Displacement | 30.1cc | 40.9cc | 30.5cc |
| Power | 1.4 hp | 2.0 hp | 1.5 hp |
| Bar (standard) | 12" | 14" | 14" |
| Weight | 8.6 lbs | 9.3 lbs | 8.8 lbs |
| Fuel Tank | 5 oz (145ml) | 10 oz (300ml) | 8.5 oz (250ml) |
| Amazon Available | No (dealer only) | Yes | Yes |
| Warranty | 2 years | 2 years | 5 years |
| Best For | Occasional light tasks, STIHL dealers nearby | Regular firewood, larger logs | Value buyers, Amazon purchase |
Key takeaway: The MS170 is the lightest but least powerful of the three. The Husqvarna 135 is the most capable but heavier. The Echo CS-310 offers a middle ground with Amazon availability and a 5-year warranty. If STIHL brand is important to you, visit a dealer. If Amazon convenience matters, the Husqvarna 135 is the best choice for most buyers.
Best Amazon Alternatives to the STIHL MS170
If you want to order online with Prime shipping and a standard return policy, here are the three strongest alternatives to the STIHL MS170 in the same entry-to-mid gas chainsaw category:
Husqvarna 135 14-inch Gas Chainsaw
- ✓ 40.9cc X-Torq engine — 36% more displacement than STIHL MS170 (30.1cc)
- ✓ 14-inch bar standard — 2 inches more reach than the MS170's 12-inch bar
- ✓ 300ml fuel tank — twice the capacity of the MS170's 145ml tank
- ✓ SmartStart + LowVib — comparable ease-of-use to STIHL's ErgoStart
- ✓ Available on Amazon with Prime shipping — full return policy
Price from Amazon.com · ships within US
Husqvarna 120 Mark II 14-inch Gas Chainsaw
- ✓ 38.2cc X-Torq engine — more power than MS170 in a similar weight class
- ✓ 14-inch bar standard — immediate step up in cutting capacity
- ✓ 8.6 lbs — same weight as the STIHL MS170, more manageable than the 135
- ✓ SmartStart — easier starts than conventional chainsaw systems
- ✓ Best choice for occasional users upgrading from the MS170 category
Price from Amazon.com · ships within US
Echo CS-310 30.5cc Gas Chainsaw
- ✓ 30.5cc engine — virtually identical displacement to STIHL MS170's 30.1cc
- ✓ 14-inch bar — 2 inches more than the standard MS170 12-inch bar
- ✓ 5-year consumer warranty — the longest warranty in this comparison
- ✓ 8.8 lbs — similar weight class to the STIHL MS170
- ✓ Available on Amazon — compare pricing with the Husqvarna options
Price from Amazon.com · ships within US
STIHL MS170 Maintenance Basics
Fuel Management (Most Common Issue for New Users)
The most frequent MS170 problem — and the leading cause of chainsaw service calls in general — is stale fuel causing carburetor gumming. Standard ethanol-blend gasoline degrades in as little as 30 days and leaves varnish deposits that clog the carburetor jets.
- • Prevention: Use STIHL MotoMix pre-mixed fuel (2-year shelf life) or add fuel stabilizer to your mixed fuel.
- • Before storage: Run the carburetor dry by letting the engine stall from fuel starvation, or drain the tank completely.
- • After seasonal storage: If you stored with fuel, drain it and add fresh mix before attempting to start. Old fuel is the top reason chainsaws won't start after winter storage.
Air Filter Maintenance
Clean the air filter every 5–10 hours of operation. A dirty filter causes hard starting, power loss, and increased fuel consumption. On the MS170, the filter is accessible without tools — remove the top cover, pull the filter, blow it out with compressed air or rinse with warm soapy water, dry completely before reinstalling. Replace the filter annually or when it cannot be cleaned satisfactorily.
Spark Plug
Replace the spark plug annually (STIHL recommends the RCJ 6Y or equivalent). Gap at 0.020 inches. Signs of a failing plug: hard starting, misfires, reduced power, rough idle. A new plug costs $4–8 and takes 5 minutes to replace — do it at the start of each season and you'll eliminate one of the most common starting problems.
Chain Sharpening
A sharp chain is the single most important performance factor. Signs the chain needs sharpening: the saw doesn't cut without push force, fine sawdust instead of wood chips, crooked cuts, excessive vibration. The MS170 uses a 3/8" pitch chain — sharpen with a 5/32" round file. File each cutter at 30° with equal strokes per tooth. Alternatively, dealers can sharpen for $10–15 or replace the chain for $20–25.
Final Verdict: STIHL MS170 or an Amazon Alternative?
Buy the STIHL MS170 (from a dealer) if:
- ✓ You have an authorized STIHL dealer within reasonable distance
- ✓ The STIHL brand's reputation and dealer network are priorities
- ✓ You'll use it for light occasional tasks (pruning, small logs, occasional cleanup)
- ✓ You want the lightest possible gas chainsaw in this power class
- ✓ You appreciate the hands-on buying experience and setup support at the dealer
Choose the Husqvarna 135 (on Amazon) if:
- ⚠️ Online shopping and Prime shipping are important to you
- ⚠️ You need more power — 40.9cc vs the MS170's 30.1cc is a significant jump
- ⚠️ You cut firewood regularly or handle medium-to-large logs
- ⚠️ No STIHL dealer is conveniently located near you
The STIHL MS170 deserves its excellent reputation — it's a reliable, well-built entry-level gas chainsaw from the most respected brand in the industry. If you can buy it from a local authorized dealer, it's a sound choice for light residential use.
For buyers who prefer Amazon's convenience, the Husqvarna 135 is the top recommendation: more power, a longer bar, a larger fuel tank, and Prime shipping with easy returns. The Echo CS-310 is worth considering as a budget pick if you want the closest spec match to the MS170 with a 5-year warranty.
STIHL MS170 Rating: ★★★★★ 4.7/5 — Excellent quality; requires dealer purchase in the US