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4into1

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When purchasing a product, price is the consumer's primary concern. At present, 4into1 has 306 products for sale. 4into1 products range in price from $6.99 to $764.96, and the average price of all the products is about $74.1.

We found that most of the 4into1 products are manufactured by Uni Filter, Motion Pro, and Arai Helmets. The manufacturers provide 4into1 with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase 4into1 products from the seller 4into1. The brand holds an average rating of 4.2, testifying to its excellent reputation.

4into1 Best Sellers

Last Updated: Jan 12, 2025

Uni Filter UP-107 1" Clamp-On Breather

New UNI washable urethane material

Motion Pro PBR Chain Tool - 08-0470 - 520 525 530 Chain Breaker Rivet Press Tool

Innovative design will Press, Break and Rivet 520, 525, & 530 chains with one convenient tool.
All components conveniently store on tool when not in use
Includes protective plastic case for convenient storage of the PBR tool and all its components

4into1 Black Spark Plug Wire - 7mm - 5 Foot Length

SPI Spark plug wire with copper conductor and Hypalon jacket. 7mm, Hypalon cable, 19 strand tinned copper conductor. Inner core of high dielectric and corona resistant compound. Thick outer sheath of Hypalon compound. Excellent heat, oil and aging resistance. Recommended for severe service conditions. Put simply, this is regular quality spark plug wire. Perfect for most all spark plug wire applications.
5 Feet Per Quantity
Sports Parts Inc Part Number: 01-114-01

4into1 Arai Helmets Signet-X US Flag Helmet Large Black Frost

Smooth shell provides maximum glance off when impacting an obstacle, helping to minimize impact forces and digging in
VAS dual-pivot shield system lowers the pivot point by an average of 24mm, making the critical temple area much smoother than standard helmets
QVF three-position intake vents and QVR exhaust ducts allow for excellent Air Inlet and exhaust performance when riding
Side vents allows for exhaust even if front shutter is closed
DOT FMVSS No. 218 Certified

Set of 4 Chrome Performance Pod Filters - 45mm - Fits Honda CB750A CB750K CB750F - 1977-1978

45mm ID where it mounts to the carburetors
68mm Air filter length
88mm Total length including rubber
74mm Outer Diameter of air filte
Set includes 4 air filters
Fits Honda: CB750A Automatic - 1977-1978 CB750F Super Sport - 1977-1978 CB750K - 1977-1978

Red Reflector Motorcycle License Plate Bolts - Set of 4

Quality red mini-reflector bolts, great for holding your license plate; Anything that can reflect and increase visibility adds to a safer ride;
Anything that can reflect and increase visibility adds to a safer ride; Comes with a spring, washer and wing nut for easy installation
Chris Products quality red mini-reflector bolts, great for holding your license plate
Anything that can reflect and increase visibility adds to a safer ride; Comes with a spring, washer and wing nut for easy installation

Set of 2 Shorty Mufflers - Flat Black - 12"

Custom flat black shorty muffler set. Includes 2 mufflers
Mounts to either 1-1/2" or 1-3/4" header
2 way reversible design
Mounts on the left or right.
Straight through removable fiberglass packed baffle.

The Peanut Classic Style Gas Tank - Black - Motorcycle Gas / Fuel Tank 1.6 Gallon 6L

The Peanut, classic style black gas tank. Great tank for smaller custom bikes and minibikes!
Tank capacity: 1.6 gallons (6 liters), Material: Steel
See photos & description below for dimensions
Modification to the motorcycle frame may be required to mount the tank on bikes other than the JL70. Check photos and dimensions before ordering. On close inspection the tanks are not perfect and may have some minor superficial imperfections.

4into1 Fork & Dust Seal Kit - Compatible with Honda CB500T CB550 CB550K CB550F CB750 CB750K CB750F

Set of 2 forks seals and 2 dust seals for many of the late 70's Honda's as well as a other makes. When replacing fork seals be very careful not to scratch or gouge the aluminum during the removal of the old seals. Use a fork seal driver to install the new seals. Be sure to drive it in evenly and make sure it fully seats so the snap ring can be installed. If you're unsure if your forks are stock please check the fork seal dimensions. The old dust boots become stiff and start to crack over
These are high quality reproduction seals produced in Taiwan. When it comes to rubber parts and seals it's generally better to install a brand new part instead of using a NOS part which has hardened due to age.
Fork Seals: Inner Diameter: 35mm Outer Diameter: 48mm Height: 11mm Material: NBR (Nitrile)
Dust Seals: Top Opening ID: 35mm (1.4") Bottom Opening ID: 53.5mm (2.1") Overall OD: 60mm (2.35") Overall Height: 30.5mm (1.2") Inner Lip 5/8 before it starts to taper in (measured from the bottom)
See Fitment In Product Description

4into1 Universal Motorcycle Push Pull Throttle 7/8" - Black - Compatible with Honda Yamaha Kawasaki Suzuki

Universal black push pull throttle. Very simple clean looking throttle for your custom bike or as a basic throttle replacement. Works with standard Honda throttle cables.
Die-cast aluminum housing
Fits 7/8 inch (22mm) bars
Opens carburetors up to 38mm

4into1 Reproduction Fork Boot Set - 51611-300-000 - Fits Honda CB450 70-74 CB500 CB550 CB750 69-79

Reproduction Fork Boot Set - 51611-300-000 - Fits Honda CB450 70-74 CB500 CB550 CB750 69-79
Replaces Honda Part Number: 51611-300-000
Fits Honda: CB450K - 1970-1974 CL450K Scrambler - 1972-1974 CB500K - 1971-1973 CB550F Super Sport - 1975-1976 CB550K - 1974-1976 CB750K - 1969-1976

Set of 4 - Black Carburetor Carb Clamps - 47mm - 50mm - Compatible with Vintage Honda Kawasaki Suzuki Yamaha Motorcycles

Sold as a set of 4
Clamp range - approximately 47mm-50mm) ( 8.4mm wide)

Reproduction Stock Air Filter - 1969-1978 Honda CB750 CB750F - 17211-300-020

New stock air filter for the SOHC Honda CB750's from 1969 to 1978. Replacing the air filter is a good thing to do every once in a while, especially if the stock one can no longer be cleaned.
Replacement for Honda part numbers: 17211-300-020, 17211-341-000, 17211-392-000, 17211-405-000
Fits Honda: CB750A Hondamatic - 1976-1978 CB750F Super Sport - 1975-1978 CB750K - 1969-1978

4into1 7" Side Mount Motorcycle Headlight w/Grill - Gloss Black - Bronze - Clear - H4 Halogen

Includes 7" H4 Halogen Bulb. - 12 Volt 60/55 Watt
Includes wire harness with male bullet terminals.
Assembly required. Instructions here and available on our site, 4into1. Search for "Build Your Own Headlight" on our site.

Universal Motorcycle Steel Baffle With Packing - Baffle Diameter 1.6" - Length 8" - For 1.75" Outer Dimension Pipe

Universal steel muffler baffle with fiberglass packing. Perfect for drag pipes and custom mufflers. Includes mounting bolt.
Fiberglass-wrapped steel construction
Size corresponds to muffler pipe outer diameter.
For 1.75" OD pipes (Baffle Diameter 1.6" - Length 8")
Baffle Diameter 1.6" - Length 8"

4into1 Lucas Style Tail Light Assembly - Chrome w/Red Lens - Motorcycle Scooter Dirt Bike

Lucas style cafe racer tail light assembly with license plate mount. Perfect for any cafe build, or if you just want a cooler looking tail light.
Comes with dual filament light bulb inside ready to go.
Red and black wires with male bullet connectors for tail light and brake light. Ground to to the metal assembly.
Does not include mounting hardware.
Total Width: 7" - Total Depth: 5" - Total Height: 3 1/2"

4into1 80's Style Black Brake Master Cylinder - Compatible with Honda CM400 CM450 CX500 CB650 CB750

This master cylinder has a brake light switch with two small spade connectors just like many of the 80's Honda's, it is attached to the bottom of the master cylinder. Similar to Honda part number 35340-MM5-600 and 35340-MA5-671
For those of you who have rebuilt a master cylinder that's seized up after sitting for 30 years, we don't have to tell you how much time you'll save buying a new master cylinder!
This does not come with instructions, so please be informed about how to install a new master cylinder, or have a professional do it.
For use with M10 x 1.25 banjo bolt. Standard size for most all Honda, Yamaha, Kawasaki and Suzuki's.
15.8mm (5/8") piston bore size.
Similar to Honda OEM part number: 45500-463-601, 45500-369-671, 45500-333-670
Check fitment list in description.

Motion Pro Chain Breaker

Motion Pro chain breaker with folding handle. Quality chain breaker for getting the job done right the first time.
Original Motion Pro design. Fits 420 to 530 chain
Will not work on EK 530 MVO/MVX chain
Max pin extension to drive out chain links is 18mm. The maximum pin extension required to drive out the chain link is determined by measuring your chains width from outside face plate to outside face plate.
Motion Pro Part Number: 08-0001

4into1 Universal Round Chrome Mirror - Early Style - Motorcycle/ATV - 10MM x 1.25 - Compatible with Honda Kawasaki Suzuki

Use this on any Honda, Kawasaki, Suzuki or other makes that accept M10 x 1.25mm right hand threads
Fits Left or Right Side, Adjustable Positioning, Mirror Glass: Flat, Mounting Thread: M10 x 1.25mm, Mirror Diameter: 4", Stem Length: 7"
Sold individually.
Check the dimensions above and make sure your model uses a 10mm mirror. There is a wide variety of handlebars and mirror mounts used on the models below. This will affect the orientation of the mirror. This mirror is adjustable but it may or may not achieve the best angle for your application.
Check Fitment Below

Spark Plug Wire Kit - 7mm - Fits Dynatek Dyna & 4into1 Magna Coils - 8 feet of Wire Plus Connectors Shown

This set contains 8 feet of wire, 4 rubber boots and 4 connectors that fit high performance Magna coils and many other coils used on Motorcycles, ATV's, etc. 7mm wire is a very standard size.
7mm core
The silicon jacketed, high tension copper core wire is perfect for stock coils and it works with points or an electronic ignition.
Can be used with many Dynatek / Dyna Coils

4into1 FAQs

Yes, 4into1 is a legitmate brand on Amazon. After conducting a comprehensive analysis of 430 customer reviews for 4into1 products on Amazon, we have determined its average rating. Offering great value and satisfying quality, 4into1 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 4into1 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.

If you're interested in 4into1 and want to find more 4into1 products, you can follow the steps below:

  1. Go back to FindThisBest's homepage.
  2. Type 4into1 in the search box and hit Enter to see the search results.
  3. Find and click the correct 4into1 to go to the new page.
  4. Select the products you want in the 4into1 buying guide, and take a glance at the prices and features of the products.
  5. View the products interest you on Amazon to read the customer reviews and check the ratings. Besides, you can hit the "brand" to find more 4into1 products.

We analyze millions of 4into1 products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

There are usually 5 to 10 products in a brand buying guide. We found 306 4into1 products for sale, 20 of which were analyzed in detail and recommended to customers.

  1. Go to the 4into1 page.
  2. Select the product you want in the 4into1 buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product Uni Filter UP-107 1" Clamp-On Breather, you can view it on Amazon page.
  3. Place your order on Amazon.

Most of the 4into1 products are produced by Uni Filter, Motion Pro, and Arai Helmets. The manufacturers provide 4into1 with a steady supply of products, and they have a good cooperative relationship with each other.

Our mission is to provide you with the most up-to-date and objective information about the 4into1 products, helping you make more informed buying decisions. We recommend best choices of the products from the 4into1 brand, helping you make better shopping choices with less time and energy.