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Friction plate set. 0.107"/2.72mm thick. 8 used, sold each. Replacement for 581918 Extra priction & steel drive plate kit.

Alto, G3 replacement friction plate set (1)

#581916

Stock:Yes

Includes 5 friction discs.
Sold as set. Aramid material is a step up from Alto's 'Red Eagle' friction material and is also bonded to a lightweight backing plate. The Aramid series are 'High Performance' friction plates for motorcycles which are equipped with high-output engines that are ridden hard. They offer excellent heat resistance and endurance. Just ask anyone who has worked with or has ridden a bike in which a set of these Alto clutch plates were installed.
OEM replacement reference 37850-68, 37930-68A

Alto, 68-84 Aramid clutch plate set. Friction

#978953

Stock:No

Friction plate. 1.50" /3.81mm thick (6 required, sold each). Replacement for 581910 friction plate kit.

Note: See 581909 for the matching friction jutter plates, as used in 581910.

Alto, G3 replacement friction plate set (1)

#581908

Stock:Yes

Includes 8 steel drive plates.
OEM replacement reference 36702-01K

Alto, clutch steel drive plate set

#978940

Stock:Yes

Steel drive plate set. 0.078"/1.98mm thick (2 used, sold each), Replacement for 581911 'Performance Steel' steel drive plate kit.

Alto, 'Performance Steel' steel clutch drive plates (1)

#581913

Stock:Yes

Steel drive plate set. 0.100"/2.54mm thick (1 used, sold each). Replacement for 581911 'Performance Steel' steel drive plate kit.

Alto, 'Performance Steel' steel clutch drive plate (1)

#581915

Stock:Yes

Steel drive plate set. 0.079"/2.01mm thick (sold each, 1 used). Replacement for 581911 & 'Performance Steel' steel drive plate kit and 581918 G3 Powerpack extra plate kit.

Alto, 'Performance Steel' steel clutch drive plate (1)

#581914

Stock:Yes

Steel drive plate set. 0.056"/1.42mm thick (9 used, sold each). Replacement for 581918 Extra priction & steel drive plate kit.

Alto Powerpack steel clutch plates G3 (1)

#581920

Stock:Yes

Friction jutter plates. 0.151"/3.84mm thick (3 used, sold each). Replacement for 581910 friction plate kit and 581918 Extra Plate friction & drive plate kit.

Note: See 581908 for the matching friction plates, as used in 581910 G3 Standard plate kit. See 581916 for the matching friction plates, as used in 581918 G3 Powerpack Extra plate kit.

Alto, G3 friction jutter plate set (1)

#581909

Stock:Yes

Includes 4 friction discs.
Sold as set. Aramid material is a step up from Alto's 'Red Eagle' friction material and is also bonded to a lightweight backing plate. The Aramid series are 'High Performance' friction plates for motorcycles which are equipped with high-output engines that are ridden hard. They offer excellent heat resistance and endurance. Just ask anyone who has worked with or has ridden a bike in which a set of these Alto clutch plates were installed.
OEM replacement reference 37930-41 (2481-41)

Alto, 41-67 Aramid clutch plate set. Friction

#978923

Stock:No

Steel drive plate set. 0.063"/1.6mm thick (sold each, 5 used), Replacement for 581911 'Performance Steel' steel drive plate kit.

Alto, 'Performance Steel' steel clutch drive plates (1)

#581912

Stock:Yes

Frictions (7)

Alto clutch plate set Aramid

#978936

Stock:Yes

Set of 7 steel drive plates only.
OEM replacement reference 37992-52

Alto, clutch steel drive plate set

#978937

Stock:Yes

Friction plate set only. Specifically developed to handle the power and torque of High-Performance H-D M8 engines. This clutch set includes 'G3' friction plates (which incl. 6 friction plates and 3 jutter plates). G3 is a newly developed friction material that offers as good or better performance than the Alto Carbonite clutch material. It is formulated with graphitic carbon-based particles which is the most durable, consistent with improved shifting and reduced burn-out product to date for high horsepower and torque applications.
In short, this is an excellent clutch plate set for stock to very high performance engines and a direct replacement for the OEM clutch plate set.
Incl. 6 x 581908 friction (1.50" /3.81mm thick) & 3 x 581909 friction jutter (0.151"/3.84mm thick) plates.

Note: Compatible with OEM components and friction discs. A matching 'Performance Steel' Alto steel drive plate set can be ordered separately as 581911.

Alto, 'G3' friction clutch plate kit

#581910

Stock:Yes

Steel drive plate set only. This 'Performance Steel' drive plate set is identical to the Alto 'Kolene-steel' drive plates, with the salt bath heat treated nitriding hardening process. But these Performance Steel plates are polished to achieve a lower RA controlled value surface, a smoother surface basically. This microscopically smoother surface reduces hot-spotting which helps reduce heat built-up and the occurrence of plate warpage.
In short, this is an excellent clutch plate set for stock to very high performance engines and a direct replacement for the OEM clutch plate set.
Incl. 5x 581912 (0.063"/1.6mm thick), 2 x 581913 (0.078"/1.98mm thick) and 1 x 581914 (0.079"/2.01mm thick) plates.

Note: Compatible with OEM components and friction plates. A matching high performance Alto G3 Black friction plate kit can be ordered separately as 581910.

Alto, 'Performance steel' steel clutch drive plate set

#581911

Stock:Yes

8 used. Steel drive plate only.
OEM replacement reference 37992-71A

Alto, clutch steel drive plate (each)

#978935

Stock:Yes

Incl. 6x externally splined Carbonite single side friction plates , 6x internally splined Carbonite single side friction plates, 1x double side Carbonite friction plate. Complete Carbonite® PowerPack® 'Maximum Effort' clutch kits with friction & steel plates. Developed to handle the power and torque of Big Inch / High-Performance engines on the streets today. This Carbonite clutch kit features an extra friction plate and steel drive plate, which increases the clutch area for greater holding. The friction plates are lined with 3M carbon based material, which is capable of withstanding higher temperatures, offers a higher coefficient of friction than anything else available today.
The steel drive plates are 'Performance Steel™' which have a surface Ra value (Roughness average) of just 2-10 micro inches. Regular steels have an Ra value between 15 to 25 micro Inches. A microscope will show you less peaks and valleys on Alto's 'Performance Steel™'. This will improve performance, durability, engagement and offer a longer life and cooler running.
OEM replacement reference 37930-84A and 37931-84

Alto, Carbonite® PowerPack® extra plate clutch kit

#978926

Stock:Yes

Includes 6 friction discs.
Sold as set. Red Eagle material bonded onto a lightweight backing plate. Red Eagle is standard replacement clutch friction plate set that offer excellent quality, heat resistance and endurance for a reasonable price for stock style motorcycles. Red Eagle is Alto's the best sold clutch material for a reason, just ask anyone who has worked with or has ridden a bike in which a set of these Alto clutch plates were installed.
OEM replacement reference 37930-84A and 37931-84

Alto, 84-89 Red Eagle clutch plate set. Friction

#978904

Stock:Yes

Incl. 9x externally splined Carbonite single side friction plates , 9x internally splined Carbonite single side friction plates, 1x double side Carbonite friction plate. Complete Carbonite® PowerPack® 'Maximum Effort' clutch kits with friction & steel plates. Developed to handle the power and torque of Big Inch / High-Performance engines on the streets today. This Carbonite clutch kit features an extra friction plate and steel drive plate, which increases the clutch area for greater holding. The friction plates are lined with 3M carbon based material, which is capable of withstanding higher temperatures, offers a higher coefficient of friction than anything else available today.
The steel drive plates are 'Performance Steel™' which have a surface Ra value (Roughness average) of just 2-10 micro inches. Regular steels have an Ra value between 15 to 25 micro Inches. A microscope will show you less peaks and valleys on Alto's 'Performance Steel™'. This will improve performance, durability, engagement and offer a longer life and cooler running.
OEM replacement reference 37911-90

Alto, Carbonite® PowerPack® extra plate clutch kit

#978927

Stock:Yes

Frictions only (7 plates)

Alto clutch plate set, red eagle

#978901

Stock:Yes