Billet Proof Designs

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When purchasing a product, price is the consumer's primary concern. At present, Billet Proof Designs has 306 products for sale. Billet Proof Designs products range in price from $10.6 to $184.89, and the average price of all the products is about $64.57.

You can confidently purchase Billet Proof Designs products from the seller Billet Proof Designs. The brand holds an average rating of 4.2, testifying to its excellent reputation.

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Last Updated: Jan 12, 2025

VENTED OR NON-VENTED Billet Aluminum Motorcycle Gas/Fuel Tank Cap Knurled - Steel Stepped Bung - Custom Harley Chopper Bobber Cafe Racer - MADE IN USA (AL/ST)

Powersports Gas Caps

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Billet aluminum cap comes with a stepped steel bung that easily welds to any steel tank.

Knurled Cap - Machined from 6061 Billet Aluminum.

Steel Bung - Machined from D.O.M steel and stepped to make welding a breeze. Just drill a 1-1/2" hole and drop it in. Thread Pitch = 1-1/4"-12

(2) 1/8" Buna-N O-Rings - ONE VENTED and ONE NON-VENTED INCLUDED - Temperature range -35 to +250 F. Durometer hardness is A70.

Made in the USA using domestic materials.

Billet Proof Designs AIRHAWK® Motorcycle Seat Cushion Cruiser, Medium

Powersports Seat Covers

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Inflatable Seat Cushion with Black Cover - Medium Cruiser

Unique inflatable, multiple-cell design for the ultimate in comfortable seating and vibration absorption.

Made from polyurethane and features a breathable, stretchable outer cover and a nonskid urethane base to protect your seat.

Feature open-mesh side panel to allow air circulation through individual air cells, creating extra ventilation to reduce heat buildup.

Made in the U.S.A.

Complete Starter Solenoid Rebuild Kit for 1991-2006 Harley Twin Cam Touring, Softail & Dyna Models (Except 2006 Dyna) & 1981-Later Harley Sportster XL Models Replaces HD# 31604-91

Powersports Starters

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If you are experiencing starter problems and only hear a click when you push the starter button, you might not need to replace the whole starter assembly.

Chances are you might only need to replace the key solenoid parts that normally wear out.

Includes everything needed to rebuild your starter solenoid.

Fits 1991-2006 Harley Big Twin Twin Cam Models (except 2006 Dyna) & 1981-Later Harley Sportster XL Models

Replaces HD# 31604-91

Chrome Clutch Lever & Brake Lever Pivot Pin Set with Stainless Snap Rings for 2008-2023 Harley Touring Models Electra Glide FLHT, Road Glide FLTR, Road King FLHR and Street Glide FLHX

Powersports Brake Levers

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Replacement Clutch Lever & Brake Lever Pivot Pin Set

Finished in a durable Chrome finish.

Pivot pins come with stainless steel Snap Rings.

Fits 2008-2023 Harley Davidson Touring Models (Electra Glide FLHT, Road Glide FLTR, Road King FLHR and Street Glide FLHX)

We also offer a Satin Black set (Please check with us for availability)

BLACK Finned Billet Oil V-Cooler for MOST Harley Models WITH 1-1/8" DOWNTUBE MOUNTS Clamps - Black Anodized Finish - Motorcycle Custom Chopper Bobber

Towing Hitch Engine Oil Coolers & Kits

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Keep that oil cool and your engine will return the favor... Billet oil coolers come with Fittings, Top Mount and Downtube Mounts/Clamps (Fits 1-1/8" OD Downtubes)

CNC machined from Billet Aluminum and Anodized Black (Also available in CHROME).

Has twin vertical 1-1/8" tubes that follow the front downtubes of MOST HARLEY MODELS.

Comes with vibration resistant top mount and (2) 5/16" barbed fittings. Top Mount and Stand-Off Frame Mounts necessary to complete a proper install.

Please make sure to check for any obstructions prior to making your purchase (Front fender, Crashbars etc.)

Chrome 6 Post Ignition Switch w/ 2 Switch Caps (Modern or Vintage Style) & 2 Keys for 1936-1995 Harley Big Twin w/Fat Bob Base & Instrument Cover (Except FLHR & FXDWG) Replaces HD# 75105-73T

Ignition Starter Switches

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A direct replacement chrome plated 6 post switch that features a weather cap with a positive action detent to hold the cap closed when riding.

Includes 2 flat keys

Includes 2 switch caps to achieve an early or late look.

Fits Big Twin 1936/1995 with Fat Bob base & instrument cover (except FLHR & FXDWG)

Replaces HD# 75105-73T

Oil Pressure Switch/Sending Unit for 1984-1999 Harley Touring, Softail, Dyna & FXR Big Twin Evolution Engine (Except Models with Electronic Pressure Gauge) Replaces HD# 26561-84 Made in USA

Car Oil Pressure Switches

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This is an OEM Replacement Oil Pressure Switch.

Heavy-duty contact, thermoplastic insulators, brass pressure ferrules and steel shells. Units are tested for accurate pressure thresholds.

Fits 1984-1999 Harley Touring, Softail, Dyna, FXR with Big Twin “EVO”/Evolution Engines (Except models with electronic pressure gauge)

Replaces HD# 26561-84

Made in USA

Black Ultima 4-piston Billet Aluminum Motorcycle Brake Caliper WITH PADS - Mounting Kits Also Available - Harley Chopper Bobber Cafe Racer

License Plate Fasteners

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Upgrade your stock brakes with this stealth, lightweight and compact 4- Piston brake Caliper!

CNC machined from 6061 billet aluminum to eliminate flex and reduce weight then powder coated flat (matte) black.

Utilizes stainless steel pistons and anti-rattle springs for increased performance and excellent wear resistance. Brake pads slide freely on ground pins to prolong pad life. Comes with brake pads, ground pins, pin springs, washers and set screw.

Can be set-up for a front or rear brake application. Designed for use with DOT-5 brake fluid for optimum performance.

We have mounting kits available to fit many different Harley models. These calipers also work with Billet Proof brake hanger kits!

Chrome Ultima 4-piston Billet Aluminum Motorcycle Brake Caliper WITH PADS - Mounting Kits Also Available - Harley Chopper Bobber Cafe Racer

License Plate Fasteners

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Upgrade your stock brakes with this stealth, lightweight and compact 4- Piston brake Caliper!

CNC machined from 6061 billet aluminum to eliminate flex and reduce weight then CHROME Plated

Can be set-up for a front or rear brake application. Designed for use with DOT-5 brake fluid for optimum performance.

We have mounting kits available to fit many different Harley models. These calipers also work with Billet Proof brake hanger kits!

Internal Throttle KIT with Metal Sleeve for use with Rubber Grips on 1" Handlebars - Needle and Ball Bearing Construction with Spring-Assisted Return - Custom Harley Bobber Chopper

Powersports Throttles

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This KIT includes the Internal Throttle and Metal Throttle Sleeve that will allow you to use Rubber Grips! Does NOT come with grips. MADE IN THE USA

Internal Throttle: The unique Needle and Ball Bearing Construction creates an extremely smooth operation over competitors internal throttles. Throttle also features a spring-assisted return for added safety.

Comes with detailed installation instructions. Basic Hand Tools required for proper installation. (No Welding Required) Custom Application for any bike with 1" Handlebars. The internal portion of the throttle slides into the handlebars just short of 2-1/2" (Roughly 2-15/16") INSTALL NOTE: You will most likely need a longer cable to use with this internal throttle kit.

Throttle Sleeve: CNC machined from 6061 Aluminum. The throttle sleeve surface is knurled to properly secure your grips. The sleeve also comes with stainless steel set-screws to secure the sleeve to your internal throttle.

Simply slide the sleeve over the throttle, tighten the set-screws and install your favorite set of rubber grips and you're good to go! Choose from our wide variety of grips or use your own with this kit!

Aeromach (CI-3010B) Black Billet Passenger Peg Mount Covers for 2014-2024 Indian Chief, Chieftain & Springfield Models - SOLD AS A PAIR with Hardware - Made in the USA

Foot Pegs

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Aeromach CI-3010B Passenger Peg Mount Covers - Black

Fits 2014-2024 Indian Chief, Chieftain & Springfield Models

These covers are designed to fill the holes left by removing passenger peg mounts - Comes with Stainless Steel Hardware

The perfect finishing touch to the solo rider's bike.

Machined from Billet Aluminum in the USA!

Chrome 3/4” Bore OE Style Replacement Rear Brake Master Cylinder for Late 1987-2003 Harley Sportster 883/1100/1200 XL/XLR/XLC/XLS/XLH Models - Replaces HD Part# 4245387 & 4245687C

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This is a complete reproduction of the OE rear master cylinder that is fully assembled for easy installation.

The master cylinder has been polished and chrome plated with a durable finish.

This master cylinder has a ¾” Bore like the OE unit.

Fits Late 1987-2003 Harley Sportster 883/1100/1200 XL Models

Replaces HD# 4245387 & 4245687C

Clutch Pushrod Bearing Kit for 1984-2017 Harley Touring, Softail, Dyna, FXR Evolution/Twin Cam with Mechanical Clutch – Thrust Washers, Bearing, Snap Ring: Replaces HD# 37312-75, 37313-80, 11096

Powersports Clutches

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Complete Clutch Pushrod Bearing Kit

Fits 1984-2017 Harley Big Twin “EVO” Evolution and Twin Cam Models (Softail, Dyna, FXR & Touring Models)

WORKS WITH MECHANICAL CLUTCH ONLY - DOES NOT WORK WITH HYDRAULIC CLUTCH

Kit includes two thrust washers, one retaining clip/snap ring and one needle bearing.

Replaces HD# 37312-75, 37313-80 & 11096

Ignition Condenser with Mount for 1948-(Early)1978 Harley Panhead/Shovelhead FX/FL Big Twin Models & 1957-(Early)1978 Sportster XL Models w/Points Ignition (Except Magneto) Replaces HD# 32726-30A

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Contact sets feature a metal spring designed to resist metal fatigue and a follower of space-age material to ensure longer life.

Condenser is sealed to help prevent breakdown due to moisture.

Fits All 1948-(Early)1978 Harley Panhead/Shovelhead Big Twin Models with Points Ignition & All 1957-(Early)1978 Harley Sportster Models with Points Ignition (Except when using Magneto)

SOLD INDIVIDUALLY

Replaces HD# 32726-30A

Momentary Push-Button Switch - Fits Handlebars or Flat Surface - Polished Stainless Steel - Includes Coped Handlebar Spacer (15150)

Powersports Switches

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Perfect for internally wiring high-beam/low-beam, turn signals or horn.

Great for the minimalist chopper builder that wants to keep necessities as simple as possible.

Includes a coped spacer that fits under the switch if used on a handlebar (remove if used on a flat surface)

Switch is threaded 5/16-24 with 26" long lead wires.

The button head portion of switch hosing measures .47" O.D. and is a mere 1/8" tall

Finned Billet Oil V-Cooler for MOST Harley Models WITH DOWNTUBE MOUNTS Clamps - Fits 1-3/8" OD Downtubes - Chrome Finish - Motorcycle Custom Chopper Bobber

License Plate Fasteners

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Keep that oil cool and your engine will return the favor... Billet oil coolers come with Fittings, Top Mount and Downtube Clamps (FOR 1-3/8" OD Downtubes) Other sizes Available.

CNC machined from Billet Aluminum and Chrome Plated (Also available in ANODIZED BLACK).

Has twin vertical 1-1/8" tubes that follow the front downtubes of MOST HARLEY MODELS.

Comes with vibration resistant top mount and (2) 5/16" barbed fittings. Top Mount and Stand-Off Frame Mounts necessary to complete a proper install.

Please make sure to check for any obstructions prior to making your purchase (Front fender, Crashbars etc.)

Chrome Finned Transmission Cover for 1987-2006 Harley Touring, Softail & Dyna Big Twin Evolution “EVO” & Twin Cam Models with 5-Speed Trans (NOT FXR or 2006 FXD) Replaces HD# 37105-87A

Powersports Transmissions

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Faithful duplicates of the OE covers

Chrome Plated Cover with Machined Grooves

Fits 1987-2006 Harley Touring, Softail & Dyna Big Twin Evolution “EVO” & Twin Cam Models with 5-Speed Trans (NOT FXR or 2006 FXD)

Not for use with hydraulic clutch - Reuse existing hardware.

Replaces HD# 37105-87A

Weld-On Large Slotted Tab - 1/4" Thick Steel - Sold Individually - Fabrication Parts DIY Motorcycle Chopper Bobber Cafe Racer Builder - Made in The USA

License Plate Fasteners

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Save some time on your build with these fabrication parts from Billet Proof Designs. Less time building = More time riding! MADE IN THE USA USING DOMESTIC MATERIAL

SOLD INDIVIDUALLY

Laser cut from 1/4" thick mild steel that's both durable and easy to weld. CNC precision will help you achieve a professional level of fit-n-finish over cutting and grinding your own tabs by hand.

Great for mounting exhaust pipes or anything else where a little "fudge-factor" is needed. We offer MANY different sizes and styles of bungs and tabs.

Dimensions: Width = 2.25" Height = 1.5" Thickness = .25" Slot Size = .325" x .825" Weight = 2.3 oz (each)

LED Turn Signal/Marker Light Load Equalizer for Harley Big Twin FX/FL Touring, Dyna, FXR & Sportster Models WITHOUT Self-Canceling Turn Signals - Works with 12 Volt Systems - Includes Instructions

Powersports Turn Signals

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This unit is designed to return amperage draw to the correct factory specification when aftermarket marker lights and LEDs are used to replace stock turn signals on Harleys that do not have self-canceling systems, normally found on models from 1990 & Earlier.

The Load Equalizer unit itself measures 3" long x 2" wide x 7/8" tall.

The kit includes instructions for an easy installation.

Fits MOST Harley Davidson Big Twin FX/FL & Sportster Models WITHOUT Self-Canceling Turn Signals.

ONLY Works with 12 Volt Systems.

Harley Starter Drive Bendix Gear Assembly for 1965-1988 Harley FL Big Twin & 1967-1980 Sportster 900cc & 1000cc - Replaces HD# 31443-65A – Made in Brazil

Car Starter Drives

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Heavy-duty, weatherproof with a five-roller clutch means that you can use this starter drive Bendix gear assembly for year with trouble-free service.

Fits 1965-1988 Harley FL Big Twin & 1967-1980 Sportster 900cc & 1000cc

Dimensions: 12mm ID x 42.5mm OD x 41mm L

Replaces HD# 31443-65A

Made in Bazil by Zen Manufacturing

Billet Proof Designs FAQs

Is Billet Proof Designs Legit?

Yes, Billet Proof Designs is a legitmate brand on Amazon. After conducting a comprehensive analysis of 1,347 customer reviews for Billet Proof Designs products on Amazon, we have determined its average rating. Offering great value and satisfying quality, Billet Proof Designs has achieved a respectable rating of 4.2 from many customers, showing that its products meet customer expectations. While there may have been minor issues reported occasionally, overall, it is safe to make purchases from Billet Proof Designs on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

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