5/8" and 3/4" 6061 Aluminum 90-Degree Press-Fit Heater Hose Fittings for LS Water Pumps
SKU: 30500564560

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

Sale price$43.16 Regular price$47.95
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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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: 30500564560

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PPeter
Phoenix, US
★★★★★ 1
Too large. Correct size not depicted.
SIZE 10-14... Too large. Product details says "Regular" size. Returning.
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Reviewed in the United States on March 16, 2026
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Stacey Lovejoy
Boise, US
★★★★★ 2
Too big
The one size fits all was too big for me.
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Reviewed in the United States on March 10, 2026
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Bibiana colon
New York, US
★★★★★ 5
Medias
Size: One Size, Color: (403) Washed Navy / White / Halo Gray
Muy buenas, cómodas me encantaron
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Reviewed in the United States on April 5, 2026
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K M
Massapequa, US
★★★★★ 5
Excellent sport sock!
Size: One Size, Color: (100) White / White / Halo Gray
Molds onto foot, super soft and breathable. A lot of my ankle socks tend to slip or cut off blood circulation. This one literally is a perfect fit. No slip. After playing hours of tennis every week, my feet don't feel sore or bruised. Must buy!
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Reviewed in the United States on October 9, 2025
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Placeholder
Carnegie, US
★★★★★ 5
Comfort!
Size: One Size, Color: (100) White / White / Halo Gray
Very comfortable! Thinner than the picture shows, but I like the fact that they are no show but still higher in the back and front to protect my heels and such.
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Reviewed in the United States on September 6, 2025

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