Easy
15-30 minutes
This item is an authentic Echo replacement part that has been sourced from the original manufacturer to be used with chainsaws. The metal tensioner attaches to the adjustment screw and is used to adjust the bar as the screw is turned. This item is available as an individual replacement part.
Tensioner, Chain C309000160
OEM part for: Echo, Shindaiwa
Part Number: C309000160
$5.39
In Stock
Ships within 1 business day 
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Frequently Purchased Together ?
Compatibility
This part will fit the following 27 machines
Echo
CS-600P 59.8cc Chainsaw View Diagrams & Manuals
CS-590 (C25812001001 - C25812999999) 59.8cc Timber Wolf Chain Saw View Diagrams & Manuals
CS-590 (C25913001001 - C25913999999) 59.8cc Timber Wolf Chain Saw View Diagrams & Manuals
CS-600P (C03603001001 - C03603999999) 59.8cc Professional Cutting System Chain Saw View Diagrams & Manuals
CS-600P (C03704001001 - C03704999999) 59.8cc Professional Cutting System Chain Saw View Diagrams & Manuals
CS-600P (C22312001001 - C22312999999) 59.8cc Professional Cutting System Chain Saw View Diagrams & Manuals
CS-600P (C22413001001 - C22413999999) 59.8cc Professional Cutting System Chain Saw View Diagrams & Manuals
CS-620P (C26712001001 - C26712999999) 59.8cc Professional Grade 2-Stroke Engine View Diagrams & Manuals
CS-620P (C26813001001 - C26813999999) 59.8cc Professional Grade 2-Stroke Engine View Diagrams & Manuals
CS-620PW (C26912001001 - C26912999999) 59.8cc Professional Grade 2-Stroke Engine View Diagrams & Manuals
CS-620PW (C27013001001 - C27013999999) 59.8cc Professional Grade 2-Stroke Engine View Diagrams & Manuals
CS-600 (C03920001001-C03920999999) Chainsaw View Diagrams & Manuals
CS-600 (C24526001001-C24526999999) Chainsaw View Diagrams & Manuals
CS-4510 (C71315001001-C71315999999) Chainsaws (Cs) View Diagrams & Manuals
CS-4510 (C84829001001-C84829999999) Chainsaw Lawn Equipment View Diagrams & Manuals
CS-590 (37000001-37999999) Chainsaw Lawn Equipment View Diagrams & Manuals
CS-590 (C36626001001-C36626999999) Chainsaw Lawn Equipment View Diagrams & Manuals
CS-590 (C69015001001-C69015999999) Chainsaw Lawn Equipment View Diagrams & Manuals
CS-620P (C32026001001-C32026999999) Chainsaw Lawn Equipment View Diagrams & Manuals
CS-620P (C69215001001-C69215999999) Chainsaw Lawn Equipment View Diagrams & Manuals
CS-620PW (C69315001001-C69315999999) Chainsaw Lawn Equipment View Diagrams & Manuals
Shindaiwa
591 (C36112001001-C36112999999) Gasoline Chainsaws View Diagrams & Manuals
591 (C36213001001-C36213999999) Gasoline Chainsaws View Diagrams & Manuals
591 (C69115001001-C69115999999) Gasoline Chainsaws View Diagrams & Manuals
600sx (C35912001001-C35912999999) Gasoline Chainsaws View Diagrams & Manuals
600sx (C36013001001-C36013999999) Gasoline Chainsaws View Diagrams & Manuals
600sx (C69415001001-C69415999999) Gasoline Chainsaws View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Chain Saw Parts
- Saw Parts
- Engine Parts
This part replaces obsolete part #: C309000070
Customer Part Reviews ?
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Double check for correct part number
Diagram doesn’t list correct part number for CS-620PW. Call Echo to get correct part number, then order from ereplacement.
Troy -
October 8, 2022
Verified Purchase
Chain Saw parts
Several times I have needed very particular parts for a repair job and each time e-replacement parts has had what I needed. This time I needed a tensioner for an ECHO chainsaw. Couldn't find it anywhere else this cheap. Thanks Guys.
Guest -
February 24, 2021
Verified Purchase
Part worked perfectly
Easy ordering process, find exactly what I needed. My Echo Cs 590 is back in action!!
Guest -
January 5, 2021
Verified Purchase
Perfect fit
Perfect fit for what I needed. Arrived quickly.
Guest -
November 19, 2019
Verified Purchase
Misleading information and poor customer service
When you enter your chainsaw brand and model all the parts listed will not match your model. When you try to return the item they end up charging you for both shipping and return shipping. Even though the misinformation was their fought. I will not use the site again.
Guest -
May 12, 2020
Verified Purchase
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t days ago
Verified Purchase
eReplacementParts Team
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Bent tensioner bolt
Robert - December 29, 2022
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Socket set, None
slide panel off, replaced tensioner.
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power saw tension tighter
Thomas - November 1, 2020
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Wrench Set
Parts Used
Replace tension tighter.
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Worn bevel gear
Paul - October 19, 2020
Tool Type
Chain Saw
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Wrench Set
Followed You Tube instructions to replace bevel gears and tensioner. It was pretty straight forward intruction.
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Chain would not tighten
Martin - September 16, 2016
Tool Type
Chain Saw
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Torx
Parts Used
Removed cover
Removed screws
Had to pry out tentioner assembly, some plastic was fused by heat and had to be scraped clean before bolt would come out
Threaded new tentioner onto bolt
Reassembled reversing disassembly process
Removed screws
Had to pry out tentioner assembly, some plastic was fused by heat and had to be scraped clean before bolt would come out
Threaded new tentioner onto bolt
Reassembled reversing disassembly process
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The tensioner bolt was bent and needed replaced.
Doug - August 22, 2016
Tool Type
Chain Saw
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
1. Took the cover off.
2. Removed the metal plate.
3. Removed the bolt and nylon housing.
4. Put new parts in.
5. Wah-lah, fixed!
2. Removed the metal plate.
3. Removed the bolt and nylon housing.
4. Put new parts in.
5. Wah-lah, fixed!
Did you find this story helpful?
Thanks for voting and helping fellow customers!
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
