ORO2U Dirt Catalogue - Section E - Engine and Performance.

Piston Kits

Namura

Namura Piston Rings Namura’s piston rings are made by Riken, the World’s largest OEM manufacturer and are the same company OEM rings used on more motorcycles and ATV’s than any other.

HUSQVARNA 2-Stroke

Piston Type

Years

Size

Piston Kit

Oem Ref

Piston Rings

Small End Bearing

2017 - 20 39.5mm 56-W802.A.NT 2017 - 20 45mm 56-W313.A.NT 2014 - 20 47mm 56-W012.A.NT 1997 - 14 54mm 56-W859.A.NT 1998 - 14 54mm 56-W859.A.NT 2014 - 20 54mm 56-W010.A.NT 2014 - 16 54mm 56-W010.A.NT 2017 - 20 54mm 56-W010.A.NT 1998 - 10 54mm 56-W859.A.NT 1999 - 12 66.4mm 56-W702.A.NT 2014 - 16 66.4mm 56-W824.A.NT 1999 - 13 66.4mm 56-W702.A.NT 2014 - 16 72mm 56-W854.A.NT 2008 - 13 72mm 56-W854.A.NT

TC 50 TC 65 TC 85

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56-R729 56-R731 56-R703 56-R704 56-R704 56-R722 56-R722 56-R722 56-R704 56-R700 56-R725 56-R700

56-846

56-827.SI 56-821.SI 56-814.SI 56-814.SI 56-800.SI 56-800.SI 56-800.SI 56-814.SI 56-801.SI 56-800.SI 56-801.SI 56-800.SI

CR / WR 125

SM 125/S

TC 125 Dual Ring TE 125 Dual Ring

TX 125

WRE 125

CR 250

TC / TE 250 Single Ring

WR 250 TE 300 WR 300

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4-Stroke

Piston Type Hyperdryve Hyperdryve

Years

Size

Piston Kit

Oem Ref

Piston Rings 56-R7718.NT 56-R7718.NT

Small End Bearing

FC 350 FE 350

2014 - 15 88mm 56-W4735+00A.NT 2014 - 16 88mm 56-W4735+00A.NT

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KAWASAKI 2-Stroke KDX 50 (Does not have machined smooth dome)

Piston Type

Years

Size

Piston Kit

Oem Ref

Piston Rings

Small End Bearing

2003 - 06 41mm 56-W826+000.NT 1983 - 03 43mm 56-W648.A.NT 2000 - 20 44.5mm 56-W752.A.NT 1988 - 00 48mm 56-W644+A.NT 2001 - 13 48.5mm 56-W782.A.NT 2014 - 20 48.5mm 56-W879.00A.NT 1995 - 13 52.5mm 56-W651.A.NT 2014 - 20 52.5mm 56-W651.A.NT1

56-808.SI 56-808.SI 56-7992.SI 56-807.SI 56-807.SI 56-807.SI 56-807.SI 56-807.SI 56-800.SI 56-800.SI 56-800.SI 56-800.SI

KX 60 KX 65 KX 80 KX 85 KX 85

13001-1536 13001-1630 13001-1497

56-R708 56-R707 56-R710 56-R709

13001-1664/0006

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KX 100 ( Twin Ring ) KX 100 ( Single Ring )

56-R763

KX 125 KX 125 KX 125 KX 125

1998 - 00 54mm 56-W741+00A.NT 13001-1524 2001 - 02 54mm 56-W783+00A.NT 13001-1597/1607/1642

56-R704 56-R704 56-R704 56-R704 56-R771 56-R706 56-R727

2003

54mm 56-W822.NT

13001-1634 13001-0009

2004 - 05 54mm 56-W834.A.NT 1996 - 03 54mm 56-W150.A.NT 1992 - 04 66.4mm 56-W617.A.NT 2005 - 08 66.4mm 56-W844.A.NT

KMX 125

KX 250 KX 250

13001-1375/1604/1645

56-881.SI 56-881.SI

4-Stroke

Piston Type

Years

Size

Piston Kit

Oem Ref

Piston Rings

Small End Bearing

KLR 250 KX 250F KX 250F KX 250F KX 250F KX 250F

1987 - 05 74mm 56-W4418.NT 2004 - 05 77mm 56-W4842.A.NT 2006 - 09 77mm 56-W4920.A.NT 2010 - 14 77mm 56-W952.A.NT 2015 - 16 77mm 56-W331.A.NT 2017 - 19 77mm 56-W9952.A.NT 2003 - 06 90mm 56-W4713.A.NT 2003 - 06 94mm 56-W4713_400.A 2006 - 18 77mm 56-W4980.A.N.HC 2008 - 19 77mm 56-W4980.A.N.HC

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56-R744 56-R728 56-R728

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KLX 400 Comp. 11.3:1

13001-S006

56-R733

Big Bore, Hi-Comp 12.3:1

– – –

56-K112.94_RING

KX 450F Comp. 12.8:1 KLX 450 Comp. 12.8:1

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*Please visit our website for current prices E40

www.oro2u.com

Tel: 01597 822 666

Fax: 01597 825 224

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