1981 - PowerSports Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Wiseco Powersports Piston Kits 236M05600

Wiseco Powersports Piston Kits 236M05600

Piston and Ring Kit, Forged Aluminum, 56.000mm Bore, Yamaha, Kit

Part Number: WIS-236M05600

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Rick's Motorsport Voltage Regulators 10-443

Voltage Regulator, 12 V, Aluminum, Black, for use on Honda®, Kawasaki, Suzuki, Yamaha, Each

Part Number: RSE-10-443

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

E3 Spark Plugs E3.34

Spark Plug, E3, Gasket Seat, 14mm Thread, 0.750 in. Reach, Projected Tip, Resistor, Each

Part Number: ETP-E3-34

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Redhorse Performance 4910 Series Thermostat Housing Assemblies 4910-383-20-3

Water Neck, Aluminum, Red Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, With Filler Neck for Radiator Cap, Chevy, Small/Big Block, Each

Part Number: HSE-4910-383-203

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

E3 Spark Plugs E3.32

Spark Plug, E3, Gasket Seat, 14mm Thread, 0.500 in. Reach, Resistor, Each

Part Number: ETP-E3-32

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ACCEL Motorcycle Hybrid Design Electric Voltage Regulators 201118B

Voltage Regulator, Motorcycle, Black, Softail, Dyna, Touring, Each

Part Number: ALM-201118B

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

BikeMaster Brake Shoes 963008

Brake Shoes, Organic, Rear, for use on Honda®, Kymco, Set

Part Number: BKM-96-3008

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

UNI Filter Multi-Stage Competition Air Filters for 1981-2025 PW50 - NU-3264ST

Air Filter, Multi-Stage Competition, Foam, Red, Yamaha, Each

Part Number: UFI-NU-3264ST

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Accutronix Knurled Grooved Grips GR100-KGB

Grips, Knurled Grooved, Twist Throttle Compatible, Aluminum, Black Anodized, 1 in. Bar Diameter, Harley-Davidson®, Pair

Part Number: AIX-GR100-KGB

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Accutronix Knurled Grooved Grips GR100-KGC

Grips, Knurled Grooved, Twist Throttle Compatible, Aluminum, Chrome, 1 in. Bar Diameter, Harley-Davidson®, Pair

Part Number: AIX-GR100-KGC

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

S&S Cycle Drive Sprocket Spacers 31-4011

Engine Accessories, 70-99 BIG TWIN, SPROCKET SHAFT SPACER

Part Number: SSY-31-4011

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Redhorse Performance 4910 Series Thermostat Housing Assemblies 4910-302-20-5

Water Neck, Aluminum, Clear Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Ford, Small Block, Each

Part Number: HSE-4910-302-205

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Redhorse Performance 4910 Series Thermostat Housing Assemblies 4910-302-20-2

Water Neck, Aluminum, Black Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Ford, Small Block, Each

Part Number: HSE-4910-302-202

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Kibblewhite Valve Stem Installation Protectors 20-20636

Valve Stem Installation Protector, 0.375 in. Stem Diameter, Harley-Davidson®, Each

Part Number: KPM-20-20636

Not Yet Reviewed

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S&S Cycle Powersports Breather Gears 33-4241

BREATHER GEAR S&S

Part Number: SSY-33-4241

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Progressive Suspension Fork Springs 11-1124

Fork Springs, Progressive, 35/50 lbs./in., 1.200 in. Diameter, 18.50 in. Length, Pair

Part Number: PGR-11-1124

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Progressive Suspension Drop-In Fork Lowering Kits 10-1561

Fork Lowering Springs, Harley-Davidson®, Motorcycles, Kit

Part Number: PGR-10-1561

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Emgo Clamp-On Air Filters 61-4820

Air Filter, Clamp-On, Cotton Gauze, Gray, Each

Part Number: EMG-12-55752

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Redhorse Performance Fuel Pump Block-Off Plates 4810-302-1

Fuel Pump Block-Off Plate, Aluminum, Blue Anodized, Ford, Each

Part Number: HSE-4810-302-1

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Redhorse Performance Fuel Pump Block-Off Plates 4810-302-5

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Redhorse Performance 4910 Series Thermostat Housing Assemblies 4910-350-20-3

Water Neck, Aluminum, Red Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Chevy, Small/Big Block, Each

Part Number: HSE-4910-350-203

Not Yet Reviewed

Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

SCE AccuSeal Pro Exhaust Gaskets 213187

Header and Exhaust Manifold Gaskets, AccuSeal Pro, Round Port, Fits Mercury Marine MerCruiser 454 with Unique Bolt Pattern, Chevrolet, 7.4L, Pair

Part Number: SCE-213187

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Namura Technologies Top-End Repair Kits for 1981-2021 PW50 - NX-40005K

Repair Kit, Top End, 40.000mm Bore, 6.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40005K

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

MotoRad Radiator Caps T9

Radiator Cap, Stainless Steel, Natural, Stant, 9 psi, Chevy, GMC, International, Isuzu, MG, Each

Part Number: SNN-T9

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EBC Street Replacement Brake Rotors for 1980 CB750C CUSTOM, 1979-1982 CB750K, 1979 CB750L - MD1052LS

Brake Rotor, Replacement, Motorcycle, Solid, Stainless Steel, Cross-Drilled, Front, Each

Part Number: EBP-MD1052LS

Not Yet Reviewed

Estimated Ship Date: Mar 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

EBC Grooved Organic Brake Shoes 503G

EBC GROOVED SHOE: 503G

Part Number: EBP-503G

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

1981 Parts and Accessories