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Vehicle Info NeededWILWOODPART NUMBER: 950-120-7740-RD
GP 310 4 Piston Motorcycle Rear Brake Caliper 1984-up Harley Davidson
$28152
Ships on 11/03/2026
Lowest Price GuaranteeGP 310 Rear Disc Brake Caliper0.25'' Brake Disc Width
- GP 310 4 Piston Motorcycle Rear Brake Caliper
- 1984-up Harley Davidson
- 1.25'' / 1.25'' Piston Bores
- 11.5'' Rotor Dia.
- 0.25'' Disc Width
- Right Hand, Standard 3.50'' Mount Spacing
- Red Finish
Vehicle Applications Driving Enviroment Vehicle Sub-Types Application Duty Motorcycle Heavy Duty Powersports ATV, Snowmobiles Medium Duty Product Specifications Rotor Compatibility Rotor Width: 0.25' Maximum Rotor Width: 0.25' Minimum Rotor Width: 0.18' Maximum Rotor Diameter: 11.5' Minimum Rotor Diameter: 9.0' Brake Pad Specifications Brake Pad Type 1: 6208 Brake Pad Type 2: N/A Brake Pad Type 3: N/A Total Pad Area (in/sq): 3.65' Total Pad Volume (in/sq): 0.63' Piston Specifications Piston 1 Bore: 1.25' Piston 2 Bore: 1.25' Piston 3 Bore: N/A Piston 4 Bore: N/A Total Piston Area (in/sq): 2.46' Mounting Specifications Mount Type: Lug Mount Side: Right Hand, Standard 3.50' Mount Spacing Mount Center: 3.50' Mount Hole Size: 0.39' Mount Height: 1.55'
Legendary Stopping Power,
Show Quality Finish!
Wilwood's GP 310 motorcycle disc brake calipers have been designed and engineered for use on 1984-present Harley-Davidson® Motorcycles. Built around a 4-piston, high performance powerhouse, these billet aluminum calipers bring distinctive, bolt-on styling.
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- Rear calipers are mounted utilizing unique bracket designs that combine the right elements of strength and style
- Available in polished, brilliant chrome, high luster black powder coat finishes
- Stainless steel pistons are employed to reduce brake fade while resisting corrosion
- High temperature piston seals are utilized to extend life, control retraction, and provide drag free operation
- Additional features include bright finish bleed screws and hardware, plus an exclusive anti-rattle pad clip
- Low dust, low noise brake pads are designed to operate in the widest range of temperatures and environments, utilizing our industry leading stainless steel rotor compatible formulation
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Part TypeDisc Brake Caliper
Product LineWilwood GP 310 Motorcycle Rear Disc Brake Calipers & Kits
BrandWILWOOD
Package Height3.38
Package Width4.44
Package Length6.75
Weight2.0 PG
Part CategoryPerformance Parts
Piston Diameter1.25 in (31.8 mm)
Part FitmentSemi Universal
Rotor Thickness0.25 in (6.4 mm)
Vendor Part Number120-7740-RD
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations
