Black Friday Deals

Cloth Spark Plug Wires

Prism Supply Co runs these spark plug wires on all of their Prism builds and we guarantee you won't be disappointed with the quality.

• 40" long
• 2 90° black spark plug boots
• black coil boots
• 2 terminal ends

Petcock 3/8 NPT

The Prism Supply Co petcocks are guaranteed for life! If you're having an issue with it you can send it back to them and they will rebuild it for no additional cost!

This unique petcock fits direct to either a 1/4" or 3/8" NPT bung on your gas tank. This keeps your gas tank looking very clean. It features a 5/16" diameter hose barb on one end and a fuel filter on the other. We recommend using our 1/4" fuel line for a snug, leak-proof fit. Rotating the cylindrical piece with the two grooves is how the fuel is toggled on and off. The fuel line does not rotate while toggling the fuel on/off. No reserve. 

Many custom and aftermarket gas tanks use a 1/4 inch NPT or 3/8 NPT petcock. NPT stands for National Pipe Thread and it is a tapered thread that seals as you tighten the petcock into the threaded fitting on your gas tank. Lowbrow Customs makes petcock adapter nuts in both brass and chrome that allow you to adapt your 22mm petcock bung to accept either a 1/4 inch NPT or 3/8 inch NPT petcock. 

Cable/ Wire Guide Weld-On

Looking for a way to clean up your cables and/ or wiring? The guys over at Prism Supply Co. have you covered! These weld-on cable guides are perfect for cable and wire route planning during your build. With these internal internal wiring guides, your wiring will look cleaner than anyone else's! 

• Work perfectly for electrical wires, throttle cables, clutch cables, and brake cables
• These come in raw steel.
• Can be welded/ brazed on.
• Can work with either throttle cable or electrical wires.
• Each guide is sold individually.

Auto-Resetting Circuit Breaker Kit

This Auto Resetting Circuit Breaker Kit consists of an AT0 inline fuse holder and auto-resetting, 10 amp blade circuit breaker. The wire is not included but can be purchased here

The way this fuse holder is designed eliminates the need for any soldering or crimping, requiring very little tooling to install. 

Some advantages of using our circuit breaker kit over a fuse are below:

• The circuit breaker auto resets after tripping, eliminating the need to ever replace a fuse
• The circuit breaker is more sensitive than a fuse, which causes it to trip quicker. 

Ripple Tail Light (Weld-On)

These tail lights are perfect for that weld-on application.  Works great welded to a sissy bar moulded to a frame or welded to a license bracket.

These dual-function 1.25" LEDs act as a brake light and running light. The size of the housing is 1 7/8"  diameter x 1" long.

Stainless or mild steel options are available. 

Will come with flat and dome lens.

External Weld-On Cable/Wire Guide

Looking for a way to clean up your cables and/ or wiring? The folks at Prism Supply Co. have you covered! These weld-on cable guides are perfect for cable and wire route planning during your build. With both an internal and external wiring option, your wiring will look cleaner than anyone else's! 

• Work perfectly for electrical wires, throttle cables, clutch cables, and brake cables
• These come in raw steel.
• Can be welded/ brazed on.
• Can work with either throttle cable or electrical wires.
• Each guide is sold individually.

Vintage Cloth Covered 16g Electrical Wire - Blue

Replace your existing wire with this vintage braided 16 gauge wire. We offer this wire in many different colours for that ultimate custom look.  This wire consist of a multi-strand copper conductor with PVC insulation and one layer of cotton braid & lacquer. Made in the USA. Sold in 10' sections.

• Blue with White Tracers
• 10' Long
• 16 Gauge
• PVC Insulation

Glass License Plate Jewels

These vintage style glass jewels are great for mounting your license plate or any other mounting application.  They consist of a #10 mounting shaft.  Sold as a pair.

Bolt-On Pegs

These are made for 1"  1-1/8" or 1-1/4"  hardtail frames.  They come powder-coated black. Sold as a pair.  Can be used for either highway pegs or passenger pegs. Bolt-on and go!

Weld-On Flat Tail Light

These tail lights are perfect for that weld-on application.  Works great welded to a sissy bar moulded to a frame or welded to a license bracket.

These dual-function 1.25" LED's act as a brake light and running light. The size of the housing is 1.5" diameter x 4/5" long.

Petcock 1/8" NPT

The Prism Supply Co petcocks are guaranteed for life! If you're having an issue with it you can send it back to them and they will rebuild it for no additional cost!

This unique petcock fits direct to a 1/8 BSP thread on your gas tank. This keeps your gas tank looking very clean. It features a 5/16" diameter hose barb on one end and a fuel filter on the other. We recommend using our 1/4" Fuel Line for a snug, leak-proof fit. Rotating the cylindrical piece with the two grooves is how the fuel is toggled on and off. The fuel line does not rotate while toggling the fuel on/off. No reserve. 

Box Chopper Tail Light

This is the Prism version of the old style "Chopper Box light." It's equipped with a dual function LED cluster that acts as both a brake light and running light. The size of the Prism version housing is 4-1/4" long X 3/4" wide X 2-1/8" in height  while the size of the original style is 4-1/4" long 2" wide and 2" in height. The wires exit through the back of the housing. The housing is made of aluminum which gives you the option for polish, chrome, powdercoat or just leave raw.

All lights come with a two stainless steel 1/4-28 bolts spaced 3.5" apart for mounting.

5/16" Counterbore Bungs

These bungs are sold as a pair and can be purchased as mild or stainless steel and allow for the head of an allen bolt to sit flush inside. 

Outside measurements are as follows:

• 3/4" diameter
• .625" long

Vintage Cloth Covered 16g Electrical Wire - White with Blue Tracers

Replace your existing wire with this vintage braided 16 gauge wire. We offer this wire in many different colours for that ultimate custom look.  This wire consist of a multi-strand copper conductor with PVC insulation and one layer of cotton braid & lacquer. Made in the USA. Sold in 10' sections.

• White with Blue Tracers
• 10' Long
• 16 Gauge
• PVC Insulation

"Super Prism" Throttle Lock

• Includes thumb screw and spring
• Screws right into the "Super Prism" Throttle

Darlington Air Cleaner

Get rid of your bulky air cleaner and show off that H-D Engine! The Prism Supply Co. Darlington Air Cleaners were designed to achieve a clean, classy, and traditional look while maintaining maximum performance. These are beautifully machined from a solid chunk of 6061 aluminum and are available with either a polished or brushed finish. The internal venturi was designed to allow for maximum airflow. The mounting hardware for the cover is installed from the backside and gives that minimal look we all strive for.

With our combination of heavy and fine filtering elements, we can guarantee you’ll be keeping all that unnecessary crud out of your engine. If you ever are in need of a replacement filter element, those can be purchased here.

This compact kit is designed to be used on all H-D engines that use a CV carburetor or factory EFI units (excluding throttle by wire models)

Dimensions are as follows:

• 5.5” diameter
• 1.5” total depth

*Some basic jetting/ tuning may be required upon installation to maintain the correct air/ fuel mixture.

*When installing, it is recommended to use a carburetor support bracket.

Acorn Shift Knob

• Threads are 3/8-24
• 1-1/8" diameter head
• Made of phenolic plastic