You would not be able to put a 24 inch bar and chain on this chainsaw. It could cause too much strain on the engine. The maximum size you could replace it with would be a 20 inch bar and chain.
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Stihl Gas-Powered Chainsaw Farm Boss, 18in. Bar, 50.2cc, 0.325in. Chain Pitch, Model# MS 271 18

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Shipping:
Not availableIn Store Only:
Sold only in stores - 8 in stock at Fredericksburg VA
- Powered by a 50.2cc, 3.49 HP gas engine
- 18in. bar with 0.325in. chain pitch and 0.50in. chain gauge
- Electronic Ignition for easier starting and smoother running
- Anti-vibration system minimizes vibration levels, helping to reduce operator fatigue and provide a more comfortable working experience
- Reduced-Emission Engine Technology is environmentally conscious, producing zero or low exhaust emissions
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
This item may be purchased at select Northern Tool stores. Not available for online order at NorthernTool.com.
What's Included
- (1) Stihl Farm Boss Chainsaw, 18in. Bar, 50.2cc, 0.325in. Chain Pitch, Model# MS 271 18

Features + Benefits
- Powered by a 50.2cc, 3.49 HP gas engine
- 18in. bar with 0.325in. chain pitch and 0.50in. chain gauge
- Electronic Ignition for easier starting and smoother running
- Anti-vibration system minimizes vibration levels, helping to reduce operator fatigue and provide a more comfortable working experience
- Reduced-Emission Engine Technology is environmentally conscious, producing zero or low exhaust emissions
- Pre-separation air filtration system reduces dirt to be captured by the air filter, resulting in less frequent cleaning and maintenance, boosting the efficiency of the engine's filter system
- Tool-less fuel and oil caps with retainers allow you to simply lift the lever and twist the caps to remove or tighten -- no tools necessary
- Side-access chain tensioner provides easy access for saw chain adjustments with a bar wrench
Key Specs
| Attribute | Specification |
|---|---|
item# | 63873 |
Brand | Stihl |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 18.6 LB |
Bar Length | 18 in |
Engine Displacement | 50.2 cc |
Chain Pitch | 0.325 |
Fuel Capacity | 16.9 oz |
| Attribute | Specification |
|---|---|
Power Type | Gas |
Horsepower | 3.49 |
Case Included | No |
Oil Capacity | 8.12 oz |
Oil Fuel Mix Ratio | 50:1 |
Low Vibration Handle | Yes |
Tool-Less Chain Tensioning | No |
Product Weight | 12.3 lb |
Reviews
Questions & Answers
Questions
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· 10 months ago
Can í replace bar and chain with a 24in?
1 answer-
ProductExpert6· 10 months ago
Helpful?
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· 3 years ago
stihl MS 271 (18 inch bar) what part # for stihl replacement chain ?
1 answer-
ProductExpert37· 3 years ago
The MS 271 can accept any chain with an 18" bar length, 0.325 chain pitch, and 0.50 in chain gauge.
Helpful?
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· 4 years ago
Can I put a 16 inch bar on my farm boss
1 answer-
ProductExpert29· 4 years ago
This chainsaw can be used with a 16" bar.
Helpful?
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· 5 years ago
Can you exchange the 18in bar for a 20in bar on this chainsaw?
1 answer-
ProductExpert6· 5 years ago
The chainsaw would be able to accept a 20 inch bar.
Helpful?
-
Accessories We Recommend
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Warranty
Manufacturer's Warranty
1 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Item # 63873
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Specifications
18 in
20 in
20 in
14 in
50.2 cc
-
50.1 cc
35.2 cc
0.325
0.325
0.325
3/8
16.9 oz
-
17.92 oz
10.5 oz
Gas
Gas
Gas
Gas
3.49
12.5
3.35
-
No
No
No
No
8.12 oz
-
10.8 oz
7.4 oz
50:1
-
50:1
50:1
Yes
-
Yes
Yes
No
-
No
No
12.3 lb
97 lb
11.7000 lb
8.16 lb
-
81 in
-
0.05 in
-
-
17.3 x 8.7 x 11.0 in
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