Wednesday, April 25, 2018
Motorcycle Caliper – Part No: 120-4242
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GP300 Motorcycle Front Product Number: 120-4242     Price: $372.95
Available Caliper #120-4242 Configurations

Chrome Caliper

Right Hand

Chrome Caliper

Left Hand

Caliper No: 120-4242
Wilwood GP300 Motorcycle Front Caliper

Wilwood GP300 Motorcycle Front Caliper
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GP300 Motorcycle Front
Wilwood's GP300 Front motorcycle disc brake caliper has been designed and engineered for use on of 1984 - 1999 Harley-Davidson® Motorcycles. Built around a 4-piston, high performance powerhouse, this billet aluminum caliper brings distinctive, bolt-on styling. Direct leg-mounted calipers are available for all single and dual disc models (except Springer and 4-speed FL models), as well as the 1983 XR 1000.  

Front calipers are available for Wide Glide® fork models, utilizing direct mount designs that combine the right elements of strength and style.The GP300 caliper is available in polished or brilliant chrome finishes.   Continue >>

120-4242 - Product Summary
Count: Area (in²): Type: Dust Boot:
4 2.46 Stainless No
Rotor Dimensions
Rotor Width(In): Rotor Diameter(In):
0.25 11.5
Pad Dimensions
Pad Area (in²): Pad Volume (in³):
3.65 0.63
Mount Center(In): Mount Position: Mount Side: Mount Type:
3.44 Right Hand Lug
Duty Rating & Material
Material: Weight(Lbs):
Aluminum 2.2
Colors & Finishes
Color: Finish:
Chrome Chrome
Product Documents
Full Product Product Data Sheet Installation Instructions
Click To View Click To Download

Vehicle Applications
Driving EnvironmentVehicle Sub-TypesApplication Duty
Motorcycles Heavy Duty
Power Sports ATV, SnowmobileMedium Duty

Product Specifications
Rotor Compatibility
Rotor Width(In): 0.25
Maximum Rotor Width(In): 0.25
Minimum Rotor Width(In): 0.18
Maximum Rotor Diameter(In): 11.5
Minimum Rotor Diameter(In): 11
Brake Pad Specifications
Brake Pad Type 1: 6208
Brake Pad Type 2: N-A
Brake Pad Type 3: N-A
Total Pad Area (in²): 3.65
Total Pad Volume (in³): 0.63
Pad Dimensions & Part Numbers
Pad Dimensions for the GP300 Motorcycle Front

Pad Dimensions for the GP300 Motorcycle Front
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Piston Specifications
Piston 1 Bore(In): 1.25
Piston 2 Bore(In): 1.25
Piston 3 Bore(In):
Total Piston Area (in²): 2.46
Mounting Specifications
Mount Type: Lug
Mount Side: Right Hand
Mount Center(In): 3.44
Mount Hole Size(In):
Mount Height(In): 2.33
Inlet Thread Size: 3/8-24
Mount Dimensions & Part Numbers
Dimensions for the GP300 Motorcycle Front

Dimensions for the GP300 Motorcycle Front
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Parts & Accessories
O-Ring Kit: 130-3602
Replacement Dust Boot: N-A
Replacement Piston 1: 200-6422
Replacement Piston 2: 200-6422
Replacement Piston 3: N-A
Replacement Piston 4: N-A
Cross-Over O-Ring Kit: 130-10540
Bridge Bolt Kit: N-A
Wear Plate L/H: N-A
Wear Plate R/H: N-A
Pad Retainer: 180-10341
Bleed Screw Kit: 220-3537
Self Bleeder Tube: N-A
Cross-Over Tube: N-A