what is the pitch and drive number of this chain and bar

Apparently this item number used to be for a 20" car and is now for a 16" bar. For the 16" bar it is 67 drive links

will it fit a ms270c with .325 clutch.

Yes, if your saw has a .325 7-tooth drive sprocket than this will fit. If it didn't fit the worst case would be picking up a new sprocket at the Stihl dealer for less than $10 and changing the sprocket(which is very easy). I had to buy the .325 7-tooth sprocket so this bar would fit my Stihl and it fit beautifully then so you should be good. A lot of Stihls have the 3/8 pitch drive sprocket instead of the .325.

Will it fit a jonsered 520 sp?

Depends on the size/pitch of the sprocket on the chainsaw itself. Look at the existing bar for chain information stamped into the bar. See if it matches the .063 325 74 numbers I see on the chain box for this one. If the existing bar don't have .063 325 stamped into it, the sprocket won't fit this chain properly. Oregon is GREAT if it will work.

will this fit my stihl ms271 with 18" bar with number on bar of 3003816817

Yes, Combo 105670 will fit your Stihl MS271. If you have any other questions, please call 1-800-223-5168, select option #1, and one of Technical Services Representatives will be happy to help you. Thank you, The Oregon Team

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20" Bar & Chainsaw Chain Combo, .325", .063" Gauge, 81 Drive Links | AdvanceCut L81, Low-Vibration, Replacement Saw Chain & Guide Bar, Fits Several Stihl Models and More

Product ID: 866021

Details

Brand
Oregon
Chain Type
Low Profile
Gauge
0.063
Item Length
20 Inches
Item Pitch
0.33 Inches

💧LubriTec automatic oiling

🪚20-inch bar length

⚙️81 drive links for precision

€ 135.10

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Description

🪓 Upgrade your cut game with Oregon’s pro-level bar & chain combo!

TRUSTED TOP RATED - 4.5-star rating from 2,200+ users proves this combo is a landscaping essential.
LONGER LIFE LUBRI TEC - Next-gen automatic oiling system reduces friction and extends bar & chain durability.
PRO GRADE PERFORMANCE - Micro Chisel cutters deliver sharp, efficient cuts on hardwood with easier maintenance.
SMOOTH SAFE CUTTING - Low vibration and kickback design meets ANSI B175.1-2012 safety standards for confident operation.
PRECISION FIT FOR STIHL - Seamlessly compatible with 15+ Stihl models up to 62cc for hassle-free upgrades.

The Oregon 20-Inch Replacement Chainsaw Bar and L81 AdvanceCut Chain combo features an 81 drive link, .325" pitch, and .063" gauge chain designed for a wide range of Stihl chainsaws up to 62cc. Equipped with Oregon’s LubriTec automatic oiling system and engineered for low vibration and kickback, this combo ensures safer, smoother cutting and longer tool life. Ideal for landscaping pros and serious yard enthusiasts seeking reliable, high-performance chainsaw accessories.

Specifications

ASIN	B000CFPXPU
Best Sellers Rank	#30,194 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #144 in Chainsaw Accessories
Brand	Oregon
Brand Name	Oregon
Chain Length	20 Inches
Chain Type	Low Profile
Compatible Devices	Stihl 024, 026, 026P, 028, 029, 030, 031, 032, 034, 036, MS 260, MS 270 (older versions with .063" gauge), MS 271 (older versions with .063" gauge), MS 280, MS 290
Customer Reviews	4.5 out of 5 stars 2,259 Reviews
Drive Link Count	81
Gauge	0.063
Global Trade Identification Number	00036577011170
Included Components	1
Item Length	20 Inches
Item Pitch	0.33 Inches
Item Type Name	for Stihl
Item Weight	3.4 Pounds
Manufacturer	Oregon Tool
Manufacturer Part Number	105671
Model Number	105671
Pitch	0.33 Inches
UPC	036577011170
Unit Count	1.0 Count

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€ 135.10

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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