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Quarter Master Optimum-V Clutches
Clutch, Optimum-V, 1.125 in. - 10-spline, 5.5 in. Diameter, 3-Disc, Sintered Metallic Disc Material, Kit
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Estimated Ship Date: Nov 25, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
375080
Part Type:
Product Line:
Summit Racing Part Number:
QTM-375080
Item Number:
6617843
Clutch Usage:
Performance
Clutch Disc Quantity:
3
Flywheel Included:
No
Input Spline Quantity:
10
Input Shaft Diameter:
1.125 in.
Disc Diameter (in.):
5.500 in.
Disc Diameter (mm):
140mm
Disc Material:
Sintered metallic
Disc Style:
Full face
Hub Style:
Solid
Pressure Plate Style:
Diaphragm
Throwout Bearing Included:
No
Alignment Tool Included:
No
Pilot Bushing Included:
No
Counterweight Assist:
No
Mounting Hardware Included:
No
Quantity:
Sold as a kit.
Quarter Master Optimum-V Clutches
Quarter Master Optimum-V clutches offer race-winning performance! These extremely light Optimum-V clutches deliver an open cover design with integrated wear pins, premium bronze sintered metallic frictions, and a 6-leg design with gas slots for maximum cooling, quicker starts, and deeper braking. Quarter Master has engineered these clutches to reduce the moment of inertia for a lightweight power transfer and optimum performance. And, when the time comes, these rebuildable clutches are easily serviced with available kits and replacement friction discs. Shift into winning gear with Quarter Master Optimum-V clutches.
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