Wilwood Caliper-GP310 Chrome Rear 1.25in Pistons .25in Disc

SKU: WIL120-7740

Brake Calipers

WIL GP310 Caliper...

Wilwood

Wilwood Caliper-GP310 Chrome Rear 1.25in Pistons .25in Disc

SKU: WIL120-7740

Brake Calipers

WIL GP310 Caliper...

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Wilwood's GP310 Rear motorcycle disc brake caliper has been designed and engineered for use on 1984 - present Harley-Davidson® Motorcycles. Built around a 4-piston, high performance powerhouse, this billet aluminum caliper brings distinctive, bolt-on styling: Bracket-mounted calipers with a standard 3.50" mount spacing are available for all most models (except Springer and 4-speed FL models).

Part Type

Brake Calipers

Data: v4.2 - Upd: 2026-10-13 21:12:39

Specifications

Product Attributes - UPC: 889545005684
Product Attributes - Brand: Wilwood Disc Brakes
Product Attributes - Notes: Fits models with 11.50 in. rotor diameter.
Product Attributes - Quantity: Sold individually.
Product Attributes - Part Type: Brake Calipers
Product Attributes - Thread Size: 3/8 in.-24
Product Attributes - Caliper Logo: Wilwood
Product Attributes - Product Line: Wilwood GP310 High Performance Billet Motorcycle Calipers
Product Attributes - Caliper Color: Chrome
Product Attributes - Caliper Series: GP 310
Product Attributes - Remanufactured: No
Product Attributes - Caliper Material: Aluminum
Product Attributes - Brackets Included: No
Product Attributes - Fittings Included: No
Product Attributes - Brake Pads Included: Yes
Product Attributes - Piston Diameter (in.): 1.250
Product Attributes - Rotor Thickness (in.): 0.250 in.
Product Attributes - Caliper Piston Quantity: Four
Product Attributes - Parking Brake Provision: No
Product Attributes - Manufacturer's Part Number: 120-7740

Reference Information

Brand Name/s	Wilwood
StreetFX SKU	wil120-7740
SFX Item ID	4406435
Supplier Item Code	4406435
Manufacturer SKU	120-7740
Manufacturer UPC	889545005684
Alternative References	gp310, Caliper-GP310, 1.25in, .25in

Compatibility

Application Data

Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLH ELECTRA GLIDE
Beginning Year 1984
Ending Year 1985
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHRCI ROAD KING CLASSIC
Beginning Year 1998
Ending Year 1999
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHRI ROAD KING
Beginning Year 1996
Ending Year 1997
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHR ROAD KING
Beginning Year 1994
Ending Year 1999
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHS ELECTRA GLIDE SPORT
Beginning Year 1984
Ending Year 1984
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHS ELECTRA GLIDE SPORT
Beginning Year 1987
Ending Year 1993
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHTC ELECTRA GLIDE CLASSIC
Beginning Year 1984
Ending Year 1999
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHTCI ELECTRA GLIDE CLASSIC
Beginning Year 1996
Ending Year 1999
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.

Brake Caliper Search	Search by make and model
Make	HARLEY DAVIDSON
Model	FLHTCU ELECTRA GLIDE ULTRA CLASSIC
Beginning Year	1989
Ending Year	1997
Caliper Position	Rear Right
Application Notes	Will not fit 4 speed models.

Brake Caliper Search	Search by make and model
Make	HARLEY DAVIDSON
Model	FLHTCUI ELECTRA GLIDE ULTRA CLASSIC
Beginning Year	1995
Ending Year	1999
Caliper Position	Rear Right
Application Notes	Will not fit 4 speed models.

Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHT ELECTRA GLIDE STANDARD
Beginning Year 1986
Ending Year 1987
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHT ELECTRA GLIDE STANDARD
Beginning Year 1995
Ending Year 1999
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLHX ELECTRA GLIDE SPECIAL
Beginning Year 1984
Ending Year 1985
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.

Brake Caliper Search	Search by make and model
Make	HARLEY DAVIDSON
Model	FLSTC HERITAGE SOFTAIL CLASSIC
Beginning Year	1988
Ending Year	1999
Caliper Position	Rear Right
Application Notes	Will not fit 4 speed models.

Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLSTF FAT BOY
Beginning Year 1990
Ending Year 1999
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLST HERITAGE SOFTAIL
Beginning Year 1986
Ending Year 1990
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.

Brake Caliper Search	Search by make and model
Make	HARLEY DAVIDSON
Model	FLSTN HERITAGE SOFTAIL NOSTALGIA
Beginning Year	1993
Ending Year	1993
Caliper Position	Rear Right
Application Notes	Will not fit 4 speed models.

Brake Caliper Search	Search by make and model
Make	HARLEY DAVIDSON
Model	FLSTN HERITAGE SOFTAIL SPECIAL
Beginning Year	1994
Ending Year	1996
Caliper Position	Rear Right
Application Notes	Will not fit 4 speed models.

Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLSTS HERITAGE SPRINGER
Beginning Year 1997
Ending Year 1999
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLTC TOUR GLIDE CLASSIC
Beginning Year 1984
Ending Year 1991
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.

Brake Caliper Search	Search by make and model
Make	HARLEY DAVIDSON
Model	FLTCUI TOUR GLIDE ULTRA CLASSIC
Beginning Year	1996
Ending Year	1996
Caliper Position	Rear Right
Application Notes	Will not fit 4 speed models.

Brake Caliper Search	Search by make and model
Make	HARLEY DAVIDSON
Model	FLTCU TOUR GLIDE ULTRA CLASSIC
Beginning Year	1989
Ending Year	1995
Caliper Position	Rear Right
Application Notes	Will not fit 4 speed models.

Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLTRI ROAD GLIDE
Beginning Year 1998
Ending Year 1999
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FLTR ROAD GLIDE
Beginning Year 1998
Ending Year 1999
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.
Brake Caliper Search Search by make and model
Make HARLEY DAVIDSON
Model FXDB-D DYNA GLIDE DAYTONA
Beginning Year 1992
Ending Year 1992
Caliper Position Rear Right
Application Notes Will not fit 4 speed models.