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Dolmar PS 7900, Makita DCS 6401, 6421 big bore cylinder kit 54mm
Dolmar PS 7900, Makita DCS 6401, 6421 big bore cylinder piston assembly 54mm


 
List Price: $134.39
Our Price: $111.99
Deal of the Day Price: $69.95
Part #: H30640-B

Important:

Warranty for a New Cylinder Kit.pdf


Proposition 65 Warnings:

www.p65warnings.ca.gov


Stock Status:In Stock
Qty:

Description
 
Quality aftermarket big bore kit. 54mm bore.
High quality Nikasil plated. Has hole for decompression valve
Fits: Dolmar PS 7900, Makita DCS 6401, 6421 chainsaw
Includes: cylinder, piston, rings, wrist pin, cir clips
Fits models:
  • Dolmar PS 7900, Makita DCS 6401, 6421

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Average Customer Review: Average Customer Review: 4.5 of 5 4.5 of 5 Total Reviews: 13 Write a review.

  0 of 0 people found the following review helpful:
 
5 of 5 New top end- second BB kit April 19, 2020
Reviewer: Anonymous Person from Windham, ME United States  
I have had 3 7900's, and I am down to 2 at this point.  After running them stock for about 4 seasons, I normally swap into the BB kit.  Always been good, this price is the best I have seen.  Last one was Bailey's, looking forward to seeing how this one holds up.  Went together fine, and the ring seems a bit better than the last one I had from Bailey's.  Casting seems fine, connecting rod holder-clips-nightmares are without ears (preferred), I have had the other AF type fail.  Overall happy, and have run my full tank at idle through it already, and it's going to work tomorrow.

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  0 of 0 people found the following review helpful:
 
5 of 5 Makita Big Bore April 21, 2018
Reviewer: Mike Lewman from Acworth, GA United States  
The only issue is the Compression Release valve is on the other side from my 6421.  So I had to cut a hole in the plastic.  Especially since the big bore kit really increased teh compression. installed everything & it started 2nd pull. Had to adjust carb... runs like a beast!  Cutting 32 inch pine like butter.

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  0 of 0 people found the following review helpful:
 
5 of 5 BB kit March 5, 2018
Reviewer: Josh Butler from East Bend , NC United States  
Awesome kit.  Great quality and runs strong!

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  0 of 0 people found the following review helpful:
 
5 of 5 Hyway Stihl MS362 Nikasil plated cylinder kit 47 March 2, 2018
Reviewer: Anonymous Person from Blanchard, ID United States  
Works as designed

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  0 of 0 people found the following review helpful:
 
3 of 5 November 25, 2017
Reviewer: Kevin LeRoy from HARTFORD, NY United States  
Decompression hole is too shallow for the stock valve and it is on the opposite side of the cylinder. Had to make a hole on the left side plastic to use it.

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