Part Location Diagram of 43301403931 Echo Tensioner
See part C-63 in the diagram
( Grid squares measure 1x1 inch )

Tensioner 43301403931

Manufactured by:
Echo
ERP Number:
ERP8975066
Part Number:
43301403931
Original Equipment Manufacturer ?
  Works with your model  CS-351VL!
In Stock
Delivers in 3-5 Business Days!
Minimum Quantity of 2 required

Easy 

15 - 30 mins 

(9 rated repairs) ?
  Works with your model   CS-351VL!

Product Description

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This replacement tensioner is specially designed for use with Echo pole pruners/chainsaws. This part is a crucial component of chain tensioning mechanism. If the bar doesn't adjust when you turn the tension screw usually the tensioner pin or the adjustment bolt is worn or damaged. This part is made out of metal and it is sold individually.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Echo
This part works with the following products:
  • Chainsaw
  • Pole Saw

Customer Part Reviews

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Average Rating (out of 5):
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(4 Reviews)
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Questions & Answers

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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.

Easy 

15 - 30 mins 

(9 rated repairs) ?
  • 1
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Loose bar, not able to tension, chain falling off constantly

Herbert from North Conway, New Hampshire

4 of 4 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Remove chain bar cover and outer plate. Then remove the bar. you will see the chain adjustment parts in the housing. Remove the old parts and replace with the new ones. Install the bar and place chain on the bar. Replace all other parts in reverse order. Tighten the chain to the proper tension.
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Guide bar bent. Tensioner screw and nut replaced

Timothy from Winter Garden, Florida

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers, Socket set
Took old bar off
Replaced tension screw and nut
Replaced new bar
Put on new chain
Replaced nuts to hold bar and chain on
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Worn tensioner screw and bar

Anthony from BRADENTON, Florida

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers, Socket set
Removed the sprocket guard
Loosened the tension on the blade and the bar
Remove the blade and bar
Remove the old tensioner and the adjustment screw
Install the new bar and chain
Install the sprocket guard
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Hard starting - would run very briefly and stop.

Randall from Brighton, Tennessee

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Nutdriver, Pliers, Screw drivers, Socket set, Wrench set
1: Remove air filter
2: Remove recoil starter assembly.
3: Loosen carburetor nuts
4: Disconnect throttle and choke linkage from carburetor
5: Unplug kill switch wiring
6: Remove carburetor from engine
7: Disassemble carburetor - note the location of low and high speed needles and tension springs
8 : Pry out strainer from carburetor body
9: Soak metallic carburetor parts in carburetor cleaner.
10: Carefully scrape old gasket material from carburetor body, diaphragm and pump covers
11: Blow out all passages thoroughly and blow dry all parts.
12: Inspect tank and fuel line - clean
13: Reassemble carburetor with new strainer, pump and diaphragm
14: Install carburetor and reassemble saw in reverse order from disassembly.

Blade tensioner and adjuster were replaced at this time as well - had nothing to do with the starting problem.
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Tensioner screw which adjusts chain tension was bent.

Milton from MOUNT PLEASANT, South Carolina

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers, Wrench (Adjustable)
Parts Used:
43301403931, 43301611031
I removed the outer enclosure and chain/bar which allowed access to the tensioner and screw. I just unscrewed the old bent screw and put the new one in its place. There was a small clip that fit over end of the tensioner screw which keeps the screw from sliding out of its track. It is very easy to miss this clip which I almost did and it is a necessary part to make the tensioner screw work properly.
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Chain kept falling off

Cecilio from Rosharon , Texas

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Took the chain cover off. Removed old parts and installed new parts. Very simple fix. The only problem was the parts shown for my model and serial number were wrong so I had to order the correct parts. I had to look at different model numbers to find the correct parts
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Adjuster missing

Gerald from Random Lake, Wisconsin

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Nutdriver, Screw drivers
Remove bar , install adjuster , replace bar 2 remove air cleaner cover , replace
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Saw chain would not hold tension

Mark from SAINT LOUIS, Missouri

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Took it apart and installed new parts
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Chain tensioner was not working properly. The bolt was bent and needed to be replaced.

Craig from Yardley, Pennsylvania

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers, Socket set, Wrench (Adjustable)
1. Removed the cover to take off the chain.
2. Unscrewed the tensioner bolt and replaced.
3. Replaced the spark plug just as routine maintenance.
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP8975066
Manufacturer Part Number: 43301403931
Brand Model Number Description
Echo 90080 Pole Saw - Oiler Gear Case Assembly - 22mm
Echo 90081 Pole Saw - Oiler Gear Case Assembly - 35mm
Echo 90083 Pole Saw - Oiler Gear Case Assembly - 35mm
Echo 90084 Pole Saw - Oiler Gear Case Assembly - 22mm
Echo 99944200530 Pole Saw - Power Pruner Attachment
Echo CS-280E Chainsaw - Chainsaw
Echo CS-280EP Chainsaw - Chainsaw
Echo CS-290EVL Chainsaw - Chainsaw
Echo CS-290EVLP Chainsaw - Chainsaw
Echo CS-3000 Chainsaw - Chainsaw
Echo CS-300EVL Chainsaw - Chainsaw
Echo CS-302 Chainsaw - Chainsaw
Echo CS-302S Chainsaw - Chainsaw
Echo CS-305 Chainsaw - Chainsaw
Echo CS-306 Chainsaw - C07511001001 - C07511999999 Chainsaw
Echo CS-315 Chainsaw - Chainsaw
Echo CS-330EVL Chainsaw - Chainsaw
Echo CS-3400 Chainsaw - Chainsaw
Echo CS-3450 Chainsaw - Chainsaw
Echo CS-351VL Chainsaw - Chainsaw
Echo CS-3900 Chainsaw - Chainsaw
Echo CS-4000 Chainsaw - Chainsaw
Echo CS-400EVL Chainsaw - Chainsaw
Echo CS-400EVLP Chainsaw - Chainsaw
Echo CS-440EVL Chainsaw - Chainsaw
Echo CS-4500 Chainsaw - Chainsaw
Echo CS-451VL Chainsaw - Chainsaw
Echo CS-452VL Chainsaw - Chainsaw
Echo CS-500EVL Chainsaw - Chainsaw
Echo CS-500EVLP Chainsaw - Chainsaw