Husqvarna Piston Size and Number Reference Chart - this for reference only !
This list is done in numerical part number order, not in year or application order. It is only a reference listing. Updated on 11/28/03.
I do not have anything listed below for sale or leads on where to find them.  
Husqvarna
Part number
Complete with
ring/pin/clips		 Engine
size, cc		 Year
range
these are 
best guess
at this point
in the list		 Piston size, mm
stamped on piston
top. 
Usually Mahle in 
early years.

16 10 376-01
16 10 376-02
16 10 376-03
16 10 376-04
16 10 376-05		 250 1974-1982 69.43
69.68
69.93
70.18
70.		 std 
1st 
2nd
3rd
4th
16 10 378-01
16 10 378-02
16 10 378-03		 125 1974CR
1979-81CR/WR
1982WR		 54.94
55.19
55.44		 std
1st
2nd
16 10 556-02
16 10 556-03
16 10 556-04
16 10 556-05		 360 1966-1971 78.67
78.92
79.17
79.42		 std
1st
2nd
3rd
16 10 558-01
16 10 558-02
16 10 558-03		 400 1969-1975 81.42
81.92
82.42		 std
1st
2nd
16 10 581-01
16 10 581-02
16 10 581-03		 450 1972-1975 83.92
84.42
84.92		 std 
1st over 
2nd over 
16 10 670-01
16 10 670-02
16 10 670-03		 125 1972-73CR/WR
1974SC 		 54.94
55.19
55.44		 std 
1st
2nd
16 10 718-01
16 10 718-02
16 10 718-03		 360 73-75 RT (SK) 81.42
81.92
82.42		 Std
1st
2nd
16 10 737-01
16 10 737-02
16 10 737-03		 175 72-74
kitted 125		 63.93
64.18
64.43		 std
1st
2nd
16 10 760-01
16 10 760-02
16 10 760-03
16 10 760-04		 250 1973-74WR
1973CR		 69.43
69.68
69.93
70.18		 std
1st over 
2nd over 
3rd over
16 10 805-01
16 10 805-02
16 10 805-03		 250T 1967-1968
2 ring piston		 69.43
69.68
69.93		 std 
1st
2nd
16 10 829-01
16 10 829-02
16 10 829-03
16 10 829-04		 250 1966-1972 69.43
69.68
69.93
70.18		 std
1st over 
2nd over 
3rd over
16 10 857-02
16 10 857-03
16 10 857-04
16 10 857-05		 360 2 ring piston
1967-72		 78.67
78.92
79.17
79.42		 std
1st over 
2nd over
3rd over 
16 11 194-01
16 11 194-02
16 11 194-03		 500 1982-84 85.92
86.42
86.92		 std
1st over
2nd over
16 11 199-01
16 11 199-02
16 11 199-03		 125
CR/WR/XC		 1983 54.94
55.19
55.44		 std
1st
2nd
16 11 200-01
16 11 200-02
16 11 200-03		 125
CR/XC		 1982 54.94
55.19
55.44		 std
1st
2nd
16 11 210-01
16 11 210-02
16 11 210-03
16 11 210-04		 250 1983CR/WR/XC
1984WR		 69.43
69.68
69.93
70.18		 std. 
1st 
2nd
3rd
16 11 266-01
16 11 266-02
16 11 266-03		 175 1983 64.75
65,00
65,25		 std
1st
2nd
16 11 408-02
16 11 408-03
16 11 408-04
16 11 408-05
16 11 408-06
16 11 408-07		 360
360
360/90
390
390
390		 360 GP 76-77
390 CR 77-80
390 WR		 81,92
82,42
82,92
83,42
83,92
84.42		 std
1st over
2nd over 360/std 390
1st over / 360 3rd?
2nd over
3rd over
16 11 435-01
16 11 435-02
16 11 435-03
16 11 435-04		 175 reed valve type
75-77		 62,00
62,25
62,50
62,75		 std
1st over 
2nd over
3rd over 
16 11 517-01
16 11 517-02
16 11 517-03		 125 reed valve type
75-78		 54,94
55,19
55,44		 std -use 16 10 378-01
1st 
2nd 
16 11 781-01
16 11 781-02
16 11 781-03
16 11 781-04		 430 1981- 85,92
86,42
86,92
n/a		 std
1st 
2nd 
3rd - n/a 
16 14 455-01
16 14 455-02
16 14 455-03		 400 8?-87 82.50
83.00
83.50		 std
1st
2nd
16 14 471-01
16 14 471-02
16 14 471-03
87 86,00
86,50
87,00		 std
1st
2nd
16 14 487-01
16 14 487-02
16 14 487-03		 500 1985-87 86.00
86.50
87.00		 std
1st
2nd
16 14 492-01
16 14 492-02
16 14 492-03		 250
CR XC		 1985 69.50
69.75
70.00		 std
1st over
2nd over
16 14 520-01
16 14 520-02
16 14 520-03		 125
CR/XC/WR		 1984-86-87 55.00
55.25
55.50		 std
1st
2nd
16 14 549-01
16 14 549-02
16 14 549-03
16 14 549-04		 250 1984CR 69.50
69.75
70.00
70.25		 std
1st
2nd
3rd
16 15 065-01
16 15 065-02		 500
4 stroke		 - 89.94
90.44		 std
1st
16 15 070-01
16 15 070-02		 510
4 stroke		 - 91.44 std
1st
16 16 355-01 240 87 65,50 std
16 16 357-01
16 16 357-02
16 16 357-03		 250
CR/WR
XC		 1986 69.50
69.75
70.00		 std
1st
2nd
16 16 387-01
16 16 387-02
16 16 387-03		 250WR, XC 87- 66,50
66,75
67,00		 std
1st
2nd
16 16 412-01
16 16 412-02
16 16 412-03		 250CR 87- 66,50
66,75
67,00		 std
1st
2nd

Piston sizes above shown with decimal point indicate actual marking (and size) of Mahle piston. Sizes shown with comma are the catalog listing size and tend to be the bore size required for piston. Never pre plan for a piston size. Always have your piston in hand before you do any machine work!

Other related items
This piston list is done in numerical part number order, not year or application.Do not use this chart as a reference for final bore size. Always have your piston before starting machine work.If you have more or better data than what I have done here please send me a copy and I will share it with all Husky owners on the net .Thanks

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