Secure your primary clutch to the crankshaft with total confidence using RPM’s High-Strength Titanium Primary Clutch Bolt & Belleville Washer Assembly! Engineered as a direct, aerospace-grade replacement for soft factory OEM hardware (OEM Parts #7518412, #7517501, and #7519208), this Grade 5 titanium bolt, spacer, and dished Belleville centering washer setup handles extreme engine harmonics, severe vibrational torque, and heavy spring engagement without stretching, rusting, or backing out.
Precision-machined from ultra-durable Grade 5 (Ti-6Al-4V) Titanium, this primary clutch bolt package provides exceptional clamping force to prevent clutch sheave slipping or crankshaft snout damage under extreme loads. Upgrading to titanium eliminates fastener fatigue while reducing corrosion and hardware seizure inside the clutch cavity.
Technical Specifications & Installation Guidelines:
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Material: Aerospace Grade 5 Titanium (Ti-6Al-4V)
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Direct OEM Hardware Replacement: Replaces Polaris OEM #7518412 (Bolt), #7517501 (Spacer), & #7519208 (Centering Belleville Washer)
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Factory Torque Specification: 65 ft-lbs
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Threadlocker Requirement: Blue Medium-Strength Threadlocker required on threads during installation
⚠️ TORQUE & INSTALLATION NOTE:
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Torque Setting: Torque to 65 ft-lbs. When installing Grade 5 Titanium hardware with threadlocker into clean crankshaft threads, ensure torque is applied smoothly in a single motion to achieve correct joint clamping force.
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Threadlocker: Always apply a small drop of Blue Medium-Strength Loctite to clean threads prior to installation to safeguard against back-out from high engine RPM harmonics.
🔩 COMPLETE CLUTCH HARDWARE SYSTEM:
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Looking for a complete drivetrain titanium upgrade? RPM also offers matching Titanium Primary Clutch Cover Bolts, Titanium Shift Weight Bolts & Lock Nuts, and Titanium Secondary Clutch Bolts & Washers for Polaris platforms.
Features:
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Grade 5 Titanium Construction: Delivers exceptional tensile strength and durability while eliminating rust, oxidation, and hardware seizure.
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Prevents Hardware Stretch & Sheave Slip: Superior material yield strength ensures maximum crankshaft clamping force under severe 2-stroke shock loads.
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Precision Belleville Centering Washer: Includes the dished Belleville washer to maintain spring-tensioned clamping pressure against the primary clutch face.
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Direct OEM Hardware Drop-In: Machined to exact factory dimensions and thread pitch for seamless installation into the crankshaft.
What's Included:
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(1) RPM SXS Grade 5 Titanium Primary Clutch Bolt
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(1) RPM SXS Grade 5 Titanium Clutch Spacer
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(1) RPM SXS Grade 5 Titanium Centering Belleville Washer
Fitment:
Direct replacement for primary clutch main hardware on Polaris snowmobiles across 500, 600, 700, 800, 850, and 900 engine platforms (2005–2023):
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Polaris 850 Models (AXYS & Matryx Chassis): 2019–2023 (PRO RMK, RMK Khaos, Slash, SKS, Rush, Switchback Assault, Indy XC, Indy VR1, Indy XCR)
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Polaris 650 Models (Matryx Chassis): 2021–2023 (PRO RMK, RMK Khaos, Switchback, Indy XC, Indy VR1, Indy XCR, Voyageur)
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Polaris 800 Models (Pro-Ride & AXYS Chassis): 2008–2020 (PRO-RMK, RMK Khaos, SKS, Assault, Switchback, Rush, Indy XC/XCR, Titan)
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Polaris 600 Models (IQ, Pro-Ride & AXYS Chassis): 2006–2023 (PRO-RMK, RMK, Switchback, Rush, Indy, Voyageur, IQ WideTrak)
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Polaris 700 / 900 / FST Models: 2005–2010 (Fusion, RMK, Switchback, Dragon, IQ)