SKU: 65860219840

HPS 4" 4.5" OD, 7" long 6061 Aluminum Step Up Transition Joiner Reducer Tube Piping (STEP AT400 450) (STEP-AT400-450)

Sale price$31.60 Regular price$35.11
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

HPS 4" 4.5" OD, 7" long 6061 Aluminum Step Up Transition Joiner Reducer Tube Piping (STEP AT400 450) (STEP-AT400-450)HPS 4" 4. 5" OD 6061 T6 Aluminum Step Up Transition Joiner with 7" Length are commonly used in industrial, automotive, marine and aerospace industry; Great for custom fabrication project such as DIY welding, high performance air intake kit, cooling radiator and heater systems, turbo intercooler piping and charge pipe setup. 6061 aluminum is the most popular and versatile alloy, and is the least expensive of the heat treatable aluminum alloys. HPS

HPS 4" - 4.5" OD 6061 T6 Aluminum Step Up Transition Joiner with 7" Length are commonly used in industrial, automotive, marine and aerospace industry; Great for custom fabrication project such as DIY welding, high performance air intake kit, cooling radiator and heater systems, turbo intercooler piping and charge pipe setup. 6061 aluminum is the most popular and versatile alloy, and is the least expensive of the heat treatable aluminum alloys. HPS aluminum round tubing step up transition reducer joiner is sold in the T6 condition, ideal for sawing, machining, sanding, and polishing. The aluminum step up transition joiner tube can be polished, but due to the softness of the aluminum, care must be taken not to remove too much material, especially in the area near any welds.

Product Specification
- Product Type: Aluminum Step Up Transition Joiner
- Material: 6061-T6 Aluminum.
- Tubing Outside Diameter: 4" - 4-1/2" (102mm - 114mm)
- Tubing Inside Diameter: 3-7/8" - 4-5/16" (98mm - 110mm)
- Length: 7"
- Wall Thickness: 0.079" (2mm)

Remark: HPS does NOT recommend 6061 Aluminum to be used for exhaust systems.

Features:

  • Tubing outside diameter: 4 - 4-1/2 inch (102mm - 114mm). Length: 7 inch.
  • Material: 6061-T6 aluminum. Wall thickness: 0.079 inch (2mm)
  • Tubing inside diameter: 3-7/8 - 4-5/16 inch (98mm - 110mm).
  • Commonly used in industrial, automotive, marine and aerospace industry. Great for custom fabrication DIY project and welding.
  • Create your high performance air intake kit, cooling radiator and heater systems, turbo intercooler piping and reducing tubing setup.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 65860219840

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D.L. OHollaren, Jr.
Port Orchard, US
★★★★★ 3
fit
Snug fit.
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Reviewed in the United States on April 26, 2025
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Shopper scott
Port Orchard, US
★★★★★ 5
Ordering one of each color
Color: Dark Grey, Size: X-Large
Good quality for price. Probably the best item i have ever bottom off Amazon and this int a lie. I love this 1/4 zip vest. Works perfect.
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Reviewed in the United States on April 25, 2026
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Amazon Customer
Pawtucket, US
★★★★★ 1
To heavy
Color: Black, Size: X-Large
Vest is heavy and frankly very warm can’t see in what environment I’d wear it because at 40-50 I would use light down coat with sleeves I returned from t same day I reviewed it
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Reviewed in the United States on January 8, 2026
E
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Eric dyerly
New York, US
★★★★★ 5
Golf vest
Color: Black, Size: XX-Large
Very comfortable! Well made! Looks good and great price! Wish it had pockets but other than that great
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Reviewed in the United States on May 18, 2026
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Rick J
Grantham, US
★★★★★ 5
Great Vest
this golf vest is amazing. It’s very well-made. It fits well, I’m a double X and I’m 62 and a slice of pizza from 230 pounds. I just love it and plan to buy more. I believe it’s gonna wear very well, but I’ll let you all know in a month or two after I’ve worn it a couple times and washed it a couple times.
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Reviewed in the United States on March 24, 2026

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