ORO2U Dirt Catalogue - Section E - Engine and Performance.

Piston Kits

Vertex

Vertex Piston Kits - 2 Stroke As the OE supplier of 2-stroke pistons to KTM, Vertex pistons has an outstanding reputation for quality and performance. Each gravtiy cast piston is created with only premium aluminium alloys utilizing an 12-21% silicon content. The silicon content in Vertex pistons is crucial to the quality of the piston - it’s critical in decreasing thermal expansion which, when an engine reaches normal operating temperatures, can change the geometry of the piston. Controlling this expansion means Vertex pistons can be run at tighter tolerances for more power, less noise and a longer lifespan of the piston. Vertex Piston Kits - 4 Stroke When it comes to power and perforance, Vertex 4 stroke pistons are hard to beat. Forged to the highest quality 2618 aluminium alloy, Vertex pistons are perfectly suited to handle the rigors and high pressures of todays modern 4-stroke engines. To aid in the break-in process, and reduce wear, Vertex pistons utilizes a unique Molybdenum Disulphide (MOS2) coating on the piston skirt.

What really sets Vertex pistons apart from the competition are the unique piston profiles and compression ratios that are offered in A, B, C and D sizes. This variation in the sizing, a mere 0.004”, allows the piston to be perfectly sized to the cylinder for maximizing power and performance while reducing blow-by oil consumption.

HUSQVARNA Models - 2 Stroke

Piston Type

Years

Size

Piston Kit

Piston Rings 56-R9403.V 56-R9404.V 56-R9404.V 56-R9404.V 56-R9339.V 56-R9339.V 53008004700 56-R9339.V 56-R902.V 56-R902.V 56-R902.V 56-R9332.V 56-R9307.V * 56-R9331.V 56507805400 56-R9307.V * 56-R9331.V # 56-R9307.V * 56-R9307.V 56-R9307.V * 56-R9331.V # 56-R9307.V * 56-R9331.V 56507805400 56-R9307.V * 56-R9331.V # 56-R9307.V * 56-R9307.V * 56-R9307.V * 56-R9331.V # 56-R9307.V * 56-R9307.V * 56-R9331.V # 56-R9307.V * 56-R9331.V 56507805400 56-R9307.V * 56-R9331.V # 56-R9307.V * 56-R9307.V * 56-R9405.V 56-R9424.V 56-R9426.V 56-R9424.V 56-R9424.V 56-R9426.V

Piston Pin

Piston Clips

Small End Bearing 56-838.VERTEX

2017 - 23 50mm 23429AB 2011 - 13 45mm 22481AB 2017 - 23 45mm 23430AB

TC 50 CR 65 TC 65 TC 65 TC 85

715036 715332 715332 715332 715378 715378 711119 715378 711121 711121 711121 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127 715278 715389 715389 715389

72065 72065 72065 72065 72050 72050 72050 72050 72027 72027 72027 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72027

56-827.VERTEX 56-827.VERTEX 56-7997.VERTEX 56-7997.VERTEX 56-7997.VERTEX 56-7997.VERTEX

Race Evolution 2017 - 23 45mm 24447AB

2014 - 23 47mm 24212A 2014 - 23 47mm 24279A

Race

TC 85 FlatHead

Race Evolution 2014 - 23 47mm 24446A

TC 85 single ring 0,8 TC 85 12⁰ Head CR-WR 125 CR-WR 125 CR-WR 125 CR-WR-SM 125 TC 125 Twin Ring TC 125 Single Ring TC 125 Single Ring 0,8

2014 - 23 47mm 24355A

Race

1988 - 91 1992 - 94 1995 - 96

56mm 56mm 56mm

21889A 22132AB 22133AB

1997 - 13 54mm 22600A 2014 - 23 54mm 23928A 2014 - 23 54mm 24243A

56-814.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX

Race

Race Evolution 2014 - 23 54mm 24445A

2014 - 23 54mm 24427A 2014 - 20 54mm 24428A 2014 - 23 54mm 24520A 2014 - 23 54mm 24419A 2014 - 16 54mm 24234A

Race Race

TC 125 12⁰ Head Single Ring TC 125 12⁰ Head Twin Ring

TC 125 12⁰ Head TC 125 Single Ring

Pro Race

TE 125

2014 - 16 54mm 24243A

TE 125 Single Ring TE 125 Single Ring 0,8

Race Evolution 2014 - 16 54mm 24445A

Race Race

2014 - 16 54mm 24427A 2014 - 16 54mm 24428A 2014 - 16 54mm 24419A 2014 - 16 54mm 24427A 2014 - 16 54mm 24428A 2014 - 16 54mm 24419A 2017 - 19 54mm 24234A

TE 125 12⁰ Head Single Ring TE 125 12⁰ Head Twin Ring

Pro Race

TE 125 Single Ring

Race Race

TE 125 12⁰ Head Single Ring TE 125 12⁰ Head Twin Ring

Pro Race

TE 125 Single Ring

TX 125

Race

2017 - 19 54mm 24243A

TX 125  Single Ring TX 125 Single Ring 0,8

Race Evolution 2017 - 19 54mm 24445A

Race Race

2017 - 19 54mm 24427A 2017 - 19 54mm 24428A

TX 125 12⁰ Head Single Ring TX 125 12⁰ Head Twin Ring

Pro Race

2017 - 19 54mm 24419A 1994 - 96 54mm 22203AB 2017 - 20 58mm 24101A

56-800.VERTEX

TX 125 Single Ring WRE 125 DP Dual

TE 150/150i

72071.EACH

TE 150i TE 150i

Race

2020

58mm 24233A

72071.EACH 72071.EACH

56-800.VERTEX 56-800.VERTEX

2021 - 23 58mm 24519A

* # Both rings required for piston 24234A * Semi trapezoidal ring 56-R9307.V Please Note; Trapeze rings have only one installation direction! # Rectangular ring 56-R9331.V

*Please visit our website for current prices

* Note; Most Kits are available from standard size up to +2.00mm over size *

www.oro2u.com

Tel: 01597 822 666

Fax: 01597 825 224

E48

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