SKU: 48550142595

5/8" and 3/4" 6061 Aluminum 90-Degree Press-Fit Heater Hose Fittings for LS Water Pumps

Sale price$69.30 Regular price$77.00
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

5/8" and 3/4" 6061 Aluminum 90-Degree Press-Fit Heater Hose Fittings for LS Water PumpsThese 6061 aluminum 90 degree press fit fittings are designed for LS1, LS2, and LS3 water pumps after removal of the original 5 8" and 3 4" heater hose push in fittings. These fittings improve clearance in tight LS swap applications where the factory heater hose tubes may interfere with surrounding components, such as upper control arms, frame rails, or other nearby parts. Sold as a pair: one 5 8" fitting and one 3 4" fitting. Important Installation

These 6061 aluminum 90-degree press-fit fittings are designed for LS1, LS2, and LS3 water pumps after removal of the original 5/8" and 3/4" heater hose push-in fittings.

These fittings improve clearance in tight LS swap applications where the factory heater hose tubes may interfere with surrounding components, such as upper control arms, frame rails, or other nearby parts.

Sold as a pair: one 5/8" fitting and one 3/4" fitting.

Important Installation Notice

These fittings are intended for experienced builders, fabricators, and installers only.

Installation requires:

  • Removal of the factory heater hose tubes
  • Proper reaming of the water pump housing
  • Careful installation of the press-fit fittings
  • Application of an appropriate high-temperature sealant
  • Pressure or flow testing after installation to confirm a leak-free fit

Improper installation may result in leaks, poor fitment, or permanent damage to the water pump.

Warranty & Return Policy

Fittings sold separately are not returnable once installation has been attempted.

Because installation is performed by the customer, Throwback Automotive cannot warranty customer-installed fittings or customer-modified water pumps.

Shop & Bulk Orders

Working on multiple LS conversion projects or ordering for a shop? Contact us about bulk pricing on larger quantity orders.

Want the Easier Option?

Save yourself the hassle and purchase a modified LS water pump with the 90-degree fittings already installed by our team and pressure tested before shipping.

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: 48550142595

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Kiki Prince
Houston, US
★★★★★ 5
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Great material , bought a medium for my husband. Didn’t have to tailor.
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Reviewed in the United States on March 4, 2026
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Nika
Draper, US
★★★★★ 4
Well made and good material
Size: X-Large, Color: Royal Blue
The top fits but the bottom was too big had to tailor it
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Reviewed in the United States on June 14, 2025
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Robert J Nugent
Chelsea, US
★★★★★ 5
Magnificent Suit
This suit was amazing. The pants were a little bit big, but overall fitable.
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Reviewed in the United States on October 30, 2025
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Marsha
Waukegan, US
★★★★★ 5
Great product
I bought this for my 16 yrs old son for his prom, he is 5'10 " slim. He requested a small but I bought a medium instead. I had to adjust the pant waist but he loved it. The material is very good. Definitely recommend. I got value for my money. The color was awesome. He really loved it. It's true to size. Stick with your size.
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Reviewed in the United States on June 23, 2024
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Rocky Garcia
Bozeman, US
★★★★★ 3
Top small
Size: X-Large, Color: Royal Blue
Too small....
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Reviewed in the United States on October 24, 2025

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