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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Oregon 18" Bar & Chainsaw Chain Combo, .325", .063" Gauge, 74 Drive Links

Oregon 18" Bar & Chainsaw Chain Combo, .325", .063" Gauge, 74 Drive Links

Product ID: 71548214

Details

Brand
Oregon
Chain Length
18 Inches
Chain Type
Low Profile
Item Length
18 Inches
Item Pitch
0.33 Inches

🔗74 drive links

🪚18" bar length

⚙️.325" pitch, .063" gauge

€ 128.53

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🪓 Upgrade your cut game with Oregon’s precision-engineered 18" bar & chain combo!

PRECISION FIT FOR STIHL - Tailored for Stihl models with D025 motor mount—perfect compatibility guaranteed.
BUILT IN LUBRI TEC OILING - Automatic oil delivery reduces downtime and extends chain life—work smarter, not harder.
COST EFFECTIVE SPARE SETUP - Keep an extra bar & chain ready to avoid work stoppages—because downtime is not an option.
DURABLE MULTI RIVET NOSE BAR - Small radius nose design boosts control and longevity during heavy-duty use.
LOW VIBRATION MICRO CHISEL CUTTERS - Enhanced cutting performance with reduced kickback for safer, smoother operation.

The Oregon 18" Bar & Chainsaw Chain Combo features a .325" pitch, .063" gauge chain with 74 drive links, designed specifically for Stihl chainsaws with a D025 motor mount. Equipped with a Lubri-Tec automatic oiling system and low-vibration micro chisel cutters, this combo delivers superior cutting performance, durability, and reduced maintenance downtime—ideal for professional and serious occasional users seeking reliable, cost-effective chainsaw accessories.

Specifications

ASIN	B000CFNUZA
Best Sellers Rank	#29,489 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #14 in Chain Saw Bars #204 in Chainsaw Accessories
Brand	Oregon
Brand Name	Oregon
Chain Length	18 inches
Chain Type	Low Profile
Customer Reviews	4.5 out of 5 stars 976 Reviews
Drive Link Count	74
Global Trade Identification Number	00036577011163
Included Components	1
Item Highlight	AdvanceCut L74, Low-Kickback, Replacement Saw Chain & Guide Bar, Fits Several Stihl Models
Item Length	18 inches
Item Pitch	0.33 inches
Item Type Name	Chainsaw Guide Bar and Chain Combo
Manufacturer	Oregon Tool
Manufacturer Part Number	105670
Model Number	105670
Number of Items	1
Number of Packs	1
Pitch	0.33 inches
UPC	036577011163
Unit Count	1 Count

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€ 128.53

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered 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 Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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