Need a piston...


4 replies to this topic
  • builtnotbought

Posted October 01, 2010 - 08:36 AM

#1

Hey guys, i dropped a valve in my YFZ and i am looking for a stock WR450 Piston to put in since i have a WR crank, anyone know where i could find one for cheap ? new or second hand.

Thanks !

  • William1

Posted October 01, 2010 - 10:49 AM

#2

LOL, you do not want a used piston. TT store will beat any price you can find for a legitimate new part. If your old piston is shot, what condition is the barrel? Is your rid ok? You know you must have rings too as well as gaskets, probably should do a timing chain

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  • masterraptor

Posted October 01, 2010 - 01:06 PM

#3

You get a higher compression ratio with a WR piston or something?
You can get an OEM 2005 WR450 piston for $96 here:
http://www.apachemot...cles&mfg=Yamaha

  • builtnotbought

Posted October 01, 2010 - 09:23 PM

#4

Thanks guy, i will buy a new one, my cylinder is just like new, it only damaged my head and the piston... now thew only thing is whats the difference between the 03-05 and the 06-09 piston kits ? it would probably be the gaskets... idk wich one to order for my 05 YFZ.

  • masterraptor

Posted October 02, 2010 - 06:34 PM

#5

See below. The wr and yfz piston are the same part number. I'd get the '05 YFZ Piston. Its much cheaper. 09s are the same.

2005 Wr450 OEM

18 PISTON (STD)
5TJ-11631-00-00 1 $148.72 $96.54


19 PISTON RING SET (S
5JG-11603-00-00 1 $34.08 $22.11


20 PIN, PISTON
5TA-11633-00-00 1 $16.62 $10.82


21 CIRCLIP
93420-18082-00 2 $0.82 $0.53


The 05 yfz oem info:

18 PIN & PISTON KIT
99999-03528-00 (replaces 5TG-11631-00-00) 1 $111.03 $72.05


18 PISTON (STD) USE NOTED PARTS AS A SET
5TG-11631-11-00 (replaces 5TG-11631-10-00) 1 $114.80 $74.52


19 PISTON RING SET (STD
5TG-11603-00-00 1 $32.02 $20.81


20 CIRCLIP,INNER USE NOTED PARTS AS A SET
93450-22027-00 2 $2.40 $1.55


20 CIRCLIP(1EV)
99009-20500-00 2 $0.62 $0.40


21 PIN & PISTON KIT
99999-03528-00 (replaces 5TG-11633-00-00) 1 $111.03 $72.05


21 PIN, PISTON USE NOTED PARTS AS A SET
5TG-11633-10-00 1 $14.54 $9.45

09 yfz info:

18 PISTON (STD)
5TG-11631-11-00 1 $114.80 $74.52


19 PISTON RING SET (STD
5TG-11603-00-00 1 $32.02 $20.81


20 PIN, PISTON
5TG-11633-10-00 1 $14.54 $9.45


21 CIRCLIP,INNER
93450-22027-00 2 $2.40 $1.55




 
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