I have a '74 cb 750 and i want to add rear led turn signals. with this switch, would it be a case swapping out the original on the bike?

If the CB 750 has the traditional two prong flasher unit then it MAY be nearly as simple as swapping it out and finding a ground point for the wire shown in the picture. It would depend on the polarity of the prongs on your bike. If it is like my Chevy truck, you may have to run two jumper wires from the original mounting points to the new flasher to reverse polarity, or cut the wiring harness on the bike to reverse the polarity at the plug by exchanging the wires for the flasher.

I want to plug this into the 7-pin connector (pins 3 + 4 ) of our camper trailer to have the lights flash. Will it fit size wise 7 pin connector ?

I dont think it will fit size wise.....

Can anyone tell me the length from the tip of the pins to the top of the flasher? It gives dimensions but does not specify what is what. Thank you.

Just ground it to the inside cab body, anywhere. Good grounding.

do i need to add a fuse to prevent a shortage on wire harness?

If you're replacing an existing flasher or just adding it to a current circuit, you shouldn't need to add a fuse. The current circuits should already be protected. If you are adding a new circuit / lamp, I would add a fuse.

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United Pacific Heavy Duty 12-Volt LED Flasher, 2 Terminals, 18 Gauge Insulated Ground Wire, 2-Pin LED Flasher, Plastic Body – 1 Unit (Part No. 90650)

Product ID: 439507647

Details

Brand
United Pacific
Circuit type
1-way
Colour
Black
Connector type
Spade
Item dimensions L x W x H
12.4 x 7.1 x
Material
Plastic Metal

⚡12V power compatibility

🔌2-terminal plug & play

🛠️18-gauge insulated ground wire

S/.166

Duties & taxes included

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Description

⚡ Upgrade your ride’s signal game—flash smarter, not harder!

ROBUST BUILD QUALITY - Durable plastic body with precision 18-gauge insulated ground wire ensures long-lasting performance.
PLUG PLAY SIMPLICITY - 2-terminal design with ¼” male spade connectors for quick, hassle-free installation under your dash.
SEAMLESS LED INTEGRATION - Designed specifically for LED taillights and turn signals to eliminate no-flash or hyper-flash issues.
TRUSTED LEGACY SUPPORT - Backed by 30+ years of automotive expertise and dedicated customer service for peace of mind.
UNIVERSAL 12 V COMPATIBILITY - Works flawlessly with any 12-volt DC system up to 20 amps—perfect for cars and trucks alike.

The United Pacific Heavy Duty 12-Volt LED Flasher is a precision-engineered automotive component designed to regulate LED turn signal flash rates, preventing common issues like no-flash or fast-flash. Featuring a durable plastic body, 2-terminal plug & play design, and an 18-gauge insulated ground wire, it fits seamlessly into any 12V DC vehicle system up to 20 amps. Ideal for cars and trucks upgrading to LED lighting, this flasher combines reliability with easy installation, backed by over three decades of United Pacific’s automotive expertise.

Specifications

ASIN	B075G5XX5K
Best Sellers Rank	591,685 in Automotive ( See Top 100 in Automotive ) 37 in Automotive Hazard Flasher Lights
Brand	United Pacific
Circuit Type	1-way
Colour	Black
Compatible Devices	Vehicles with LED tail lights, front turn signals & side marker
Compatible with Vehicle Type	Car, Truck
Connector Type	Spade Connector
Customer Reviews	4.4 4.4 out of 5 stars (481)
Global Trade Identification Number	00710270906505
Included Components	AUTO_PART, Replacement Parts - Undercar, Electrical & Rotating Electrical, automotive-electrical-wiring-harnesses
Item Dimensions	12.4 x 7.1 x 4.1 centimetres
Item Type Name	Industries Led Flasher - 12V, 2 Terminal
Item Weight	0.07 Pounds
Manufacturer	United Pacific Industries
Manufacturer Part Number	90650
Material	Plastic Metal
Model Number	90650
Number of Items	1
Number of Positions	2
Operating Voltage	12 Volts (DC)
Switch Type	Flasher
Terminal	Spade
UPC	710270906505 680474699636
Unit Count	1.0 count

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