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16313300-1-M-Makita-257377-6-Piston Ring,
Part Location Diagram of 257377-6 Makita Piston Ring,
See part 65 in the diagram
16313300-1-S-Makita-257377-6-Piston Ring, 360 view
( Grid squares measure 1x1 inch )
16313300-1-S-Makita-257377-6-Piston Ring, 16313300-2-S-Makita-257377-6-Piston Ring, 16313300-3-S-Makita-257377-6-Piston Ring, 16313300-1-S-Makita-257377-6-Piston Ring, 360 view
Part Location Diagram of 257377-6 Makita Piston Ring,

Piston Ring, 257377-6

Manufactured by:
Makita
ERP Number:
ERP16313300
Part Number:
257377-6
Original Equipment Manufacturer ?
$46.90
★★★★★
★★★★★
1 Review
In Stock
Delivers in 3-5 Business Days!

A Bit Difficult 

More than 2 hours 

(2 rated repairs) ?

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Description Troubleshooting Reviews Questions & Answers Repair Instructions Model Cross Reference

Product Description

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This replacement piston ring is a high-quality item that is sourced from original equipment manufacturer for use with Makita power cutter saws. A worn or broken piston ring will allow combustion gasses to escape the seal and enter the crankcase causing low compression and the loss of power. If compression is reduced significantly, the engine will not be able to run at all. Please note this durable metal piston ring is sold individually.

Troubleshooting

This part works with the following brands:
  • Makita
This part works with the following products:
  • Saw
  • Concrete Saw
Part# 257377-6 replaces these:
394-132-020,
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Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(1 Review)
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★★★★★
★★★★★
Perfect fit
Solved my problem and the rebuild was easy. Your site makes it really easy to find the right parts.
David - December 1, 2022
Verified Purchase

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.

A Bit Difficult 

More than 2 hours 

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

Saw would not start due to lack of vacuum and compression .

james from moulton, Texas

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
More than 2 hours
Parts Used:
395-132-100, 257377-6
Disassemble saw removed cylinder head . Removed piston from rod . After receiving replacement piston and ring . Hond inside of cylinder head with a honing tool used battery drill to spin tool. Cleaned inside the head to remove grit . Checked for guage in walls. After inspection I installed new piston on rod installed piston in cylinder h ead very carefully .used lubricant to help with process. Once inserted I reassemble saw . Used a heavier oil ratio for break-in. So far it has worked well for me. Saved myself 834.00 dollars yea
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Ring gap almost 1/8\"-no compression.

Carl from Tecumseh, Michigan

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Parts Used:
257377-6
Tear down to remove cylinder head from piston. Remove old ring; inspect piston and cylinder for damage-both good; clean ring groove on piston; install new ring; install piston back into cylinder head; install cylinder head bolts; assemble rest of components; add fresh mix; startup and run; starts and runs good.

Special instr uctions-pay attention to how all the parts came apart so they go back together in an orderly manner.
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  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP16313300
Manufacturer Part Number: 257377-6
Brand Model Number Description
Makita DCS7300 Saw - Saw
Makita DCS7300H Saw - Saw
Makita DCS7301 Chainsaw - 73cc Chainsaw
Makita DCS7301H Saw - Saw
Makita DPC7300 Concrete Saw - Power Cutter
Makita DPC7301 Concrete Saw - Power Cutter
Makita DPC7310 Concrete Saw - Power Cutter
Makita DPC7311 Concrete Saw - Power Cutter
Makita DPC7321 Concrete Saw - 73cc 14" Power Cutter
Makita DPC7321HD Saw - Saw
Makita DPC7330 Saw - Saw
Makita DPC7331 Concrete Saw - Industrial Power Cutter
Makita DPC7331HD Concrete Saw - Industrial Power Cutter
Makita DPC7340 Saw - Saw
Makita DPC7341 Saw - Saw
Makita EA7300PR Saw - 73 Cc Chain Saw Power Head Only
Makita EA7300PRZ Saw - Saw
Makita EA7301PR Saw - 73 Cc Chain Saw Power Head Only Heated Handle
Makita EA7301PRZ Saw - Saw
Makita EK7301 Concrete Saw - 14" Power Cutter - 73 cc.
Makita EK7301X1 Saw - Saw
Makita PC-7412 Concrete Saw - 14-Inch 73 Cc Power Cutter
Makita PC-7414 Concrete Saw - 14-Inch 73 Cc Power Cutter
Makita PS-7310 Saw - 72 Cc Chain Saw Power Head Only
Makita PS-7310H Saw - 72 Cc Chain Saw Power Head Only
Piston Ring,
$ 46.90
In Stock
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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.

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