Pipe Expanders Tool Kit - Extend 1-5/8" to 4-1/4" with Case
K2 Industries
Pipe Expanders Tool Kit - Extend 1-5/8" to 4-1/4" with Case
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
Pipe Expanders Tool Kit — 1-5/8" to 4-1/4" Range with Carrying Case
Manual tube expander set that stretches pipe from 1-5/8" up to 4-1/4" diameter, built for flaring, swaging, and repair work. Comes in a protective carrying case for jobsite or garage storage. Use it for brake lines, fuel lines, coolant hoses, and custom tubing applications where you need precise, repeatable expansion without kinking or deforming.
Key Features
- Wide Size Range - Single kit handles five different pipe diameters, cutting down tool clutter and cost.
- Manual Operation - No power tools required; controlled hand leverage gives you precision on every expansion.
- Carrying Case Included - Hard-shell protection keeps expander heads and handles organized between jobs.
Specs
- Expansion Range: 1-5/8" to 4-1/4" diameter
- Configuration: Manual hand-operated tool kit
- Storage: Protective carrying case included
What's Included
- Pipe expander tool set (all expander heads and handles)
- Carrying case
Frequently Asked Questions
Do I need to remove the pipe to use this expander?
Depends on your setup. If you're flaring or swaging a line that's still in the engine bay, access matters more than the tool itself. Test-fit the kit handles in your work area first — these are hand-operated, so you need room to work the lever smoothly without obstruction.
Will this work on stainless steel or just mild steel tubing?
The kit is designed for standard tubing materials used in automotive brake, fuel, and coolant systems. Stainless is harder and will require more hand pressure; start with lighter force to feel how the tool responds before committing full leverage.
What if I need to expand a size between the marked diameters?
The expander heads are sized for the five diameters listed. If your pipe falls between those sizes, you'll need to test the closest head — some overlap is built in, but forcing a mismatched size can damage the tool or crimp the tube. Contact support if you're unsure about your tube diameter.
Your vehicle
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Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-12600-UNV-006-TSARK |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information