Close
Phone 1-855-343-0069
Cart
Official OEM Guarantee
Fast shipping from USA
365 Day Returns
Preferred Brand Partners
8854791-1-M-Echo-12314003930-Gasket-m. Diaphragm
Part Location Diagram of 12314003930 Echo Gasket-m. Diaphragm
See part A-15 in the diagram
8854791-1-S-Echo-12314003930-Gasket-m. Diaphragm 360 view
( Grid squares measure 1x1 inch )
8854791-1-S-Echo-12314003930-Gasket-m. Diaphragm 8854791-2-S-Echo-12314003930-Gasket-m. Diaphragm 8854791-3-S-Echo-12314003930-Gasket-m. Diaphragm 8854791-1-S-Echo-12314003930-Gasket-m. Diaphragm 360 view
Part Location Diagram of 12314003930 Echo Gasket-m. Diaphragm

Gasket-m. Diaphragm 12314003930

Manufactured by:
Echo
ERP Number:
ERP8854791
Part Number:
12314003930
Original Equipment Manufacturer ?
  Works with your model  CS-302!
$5.95
In Stock
Delivers in 3-5 Business Days!
Minimum Quantity of 2 required

A Bit Difficult 

1- 2 hours 

(2 rated repairs) ?
  Works with your model   CS-302!

Jump to:

Description Frequently Purchased Together Troubleshooting Questions & Answers Repair Instructions Model Cross Reference

Product Description

?

This is an authentic replacement part manufactured for use with outdoor power equipment. The diaphragm gasket seals the carburetor and fits between the carburetor and the diaphragm. It is recommended to replace the gaskets when servicing the carburetor to ensure good seals when it is reassembled. This gasket is sold as an individual replacement part.

Frequently Purchased Together

?
Gasket
$5.95
In Stock
Minimum Quantity of 2 required
Diaphragm-fuel Pump
$6.03
In Stock
Minimum Quantity of 2 required
Diaphragm-fuel Pump
$7.67
In Stock
Gasket Fuel Pump
$5.95
In Stock
Minimum Quantity of 2 required

Troubleshooting

This part works with the following brands:
  • Echo
  • Shindaiwa
This part works with the following products:
  • Trimmer
  • Chainsaw
Part# 12314003930 replaces these:
12314003930,

Questions & Answers

?

Our customer Service team is at the ready daily to answer your part and product questions.

Be the first to ask our experts a question about this part!

Ask our Team

We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.

Does this fit my product?

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.

A Bit Difficult 

1- 2 hours 

(2 rated repairs) ?
  • 1
Sort by:  
Sorry, we couldn't find any existing installation instruction that matched.

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
Parts Used:
12314103930, 12312610631, 43301403931, 43301602830, 12312503930, 12311203930, 12314003930
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.
Read less
Did you find this story helpful?
Thank you for voting!

Carb needed rebuild and clean

Donald from Ruther Glen, Virginia

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Pliers, Screw drivers, Socket set
Parts Used:
P003001850, 15901019830, 12312610631, 12312515030, 12311215030, 12314003930
I took the carb off and disassembled it then cleaned with carb cleaner and reassembled.
Did you find this story helpful?
Thank you for voting!
  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP8854791
Manufacturer Part Number: 12314003930
Brand Model Number Description
Shindaiwa 300 Chainsaw - Gas Chainsaw
Shindaiwa 300S Chainsaw - Chainsaw
Shindaiwa 345 Chainsaw - Chainsaw
Shindaiwa 350 Chainsaw - Gas Chainsaw
Shindaiwa 357 Chainsaw - Gas Chainsaw
Shindaiwa 360 Chainsaw - Gas Chainsaw
Shindaiwa 360EMC Chainsaw - Chainsaw
Shindaiwa 377 Chainsaw - Chainsaw
Shindaiwa 415 Chainsaw - Chainsaw
Shindaiwa 416 Chainsaw - Gas Chainsaw
Shindaiwa 446S Chainsaw - Chainsaw
Shindaiwa 450 Chainsaw - Chainsaw
Shindaiwa 451 Chainsaw - Gas Chainsaw
Shindaiwa 500 Chainsaw - Gas Chainsaw
Shindaiwa 502S Chainsaw - Chainsaw
Shindaiwa B460 Brush Cutter - Brushcutters (B)
Shindaiwa C-20 Brush Cutter - Brushcutter
Echo CLS-4610 Trimmer - Trimmer - Straight Shaft Clearing Saw
Echo CS-271T Chainsaw - 26.9cc Top Handle Chainsaw
Echo CS-302 Chainsaw - Chainsaw
Echo CS-302S Chainsaw - Chainsaw
Echo CS-310 Chainsaw - Chainsaw
Echo CS-315 Chainsaw - Chainsaw
Echo CS-3500 Chainsaw - Chainsaw
Echo CS-351VL Chainsaw - Chainsaw
Echo CS-352 Chainsaw - 34cc Chainsaw
Echo CS-353ES Chainsaw - Chainsaw
Echo CS-355T Chainsaw - Chainsaw
Echo CS-400EVL Chainsaw - Chainsaw
Echo CS-400EVLP Chainsaw - Chainsaw
Gasket-m. Diaphragm
$ 5.95
In Stock
Minimum Quantity of 2 required
✖
Stock Status
✖
Mail-In Recycling Rebate

Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.

✖