SKU: 55304723551

HPS Reinforced Silicone Heater Core Bypass Loop Coolant Hose LS LT LQ

Sale price$42.30 Regular price$47.00
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

HPS Reinforced Silicone Heater Core Bypass Loop Coolant Hose LS LT LQAs LS engines are becoming increasingly popular to swap, we saw an opportunity to develop a product catered to LS powered enthusiasts. Whether your car or truck came with an LSX, or you are swapping one in, the HPS LS Heater Bypass Loop is a necessity for those who plan to bypass the cabin heater. This easy to install loop eliminates concerns about air pockets that can develop when capping off your heater lines. This is the lowest profile heater loop

As LS engines are becoming increasingly popular to swap, we saw an opportunity to develop a product catered to LS powered enthusiasts. Whether your car or truck came with an LSX, or you are swapping one in, the HPS LS Heater Bypass Loop is a necessity for those who plan to bypass the cabin heater. This easy to install loop eliminates concerns about air pockets that can develop when capping off your heater lines.

This is the lowest profile heater loop on the market, measuring in at only 3 inches tall. We reinforced this hose with 4 layers of polyester between each layer of premium quality silicone. The HPS LS Heater Bypass Loop will install on any LS family engine (LS1, LT1, LQ9, etc) with 5/8" and 3/4" heater supply and return ports. Embossed stainless steel hose clamps are included for easy installation.

Key Features
- Loops the heater supply and return ports on your LSX water pump.
- Reduce curb weight by allowing safe removal of the heater core.
- CAD modeled designed using 3D scanning technology.
- This is the lowest profile heater loop on the market, measuring in at only 3 inches tall.
- Includes 100% stainless steel non-perforated embossed hose clamps for easy installation, which do not cut through the silicone hoses.
- Prevent and fix the coolant leaking and engine overheating problem caused by cracked, damaged or collapsed OEM rubber heater coolant hoses.
- Race proven design with long lasting quality and engineered for extremely high temperature service (Max. 350F) and prolonged exposure to under-hood and coolant heat.

Product information
- Product Type: Silicone Hose Kit
- Material: High Temperature Reinforced Silicone
- Available Colors: Black, Blue and Red
- Warranty: 2 Years
- Weight: 1 lb
- Shipping Box Dimension: 4 inch x 4 inch x 4 inch

Included in the kit
- HPS Performance Reinforced Silicone Hose
- HPS Performance 100% Stainless Steel Embossed Clamps

Color Manufacturer Part Number UPC Code
Black 57-1864-BLK 648044895550
Blue 57-1864-BLUE 648044895567
Red 57-1864-RED 648044895574

Remark: Silicone hose water permeation rate is 10 to 15 times greater than standard EPDM rubber hose. Checking water level regularly is highly recommended when silicone coolant hoses are used in a daily driving vehicle.

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: 55304723551

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4.4 ★★★★★
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Product Reviews
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Verified Purchase
JJW
New York, US
★★★★★ 3
Mounting system doesn’t align on one of three shelves.
Color: Walnut, Size: 3 Pack
Nice shelves. Install was super easy except on one of the three shelves. The main mounting shelf holes were off so the shelf will not slip onto horizontal mounting poles unless I modify the shelf. So a 20 minute job becomes a two hour job. The mounting system does appear very sturdy just not aligned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
M
Verified Purchase
Monkey
Waukegan, US
★★★★★ 5
Good buy
Color: Black, Size: 24 inches
The shelves are very nice and look great in my bathroom. Easy to hang. Glad I purchased.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
N
Verified Purchase
Nibi
San Leandro, US
★★★★★ 5
Good shelf
Color: Black, Size: 24 inches
Lightweight shelves. Easy to assemble
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
K
Verified Purchase
Keisha
New York, US
★★★★★ 4
Sturdy
Color: White, Size: 15 inches, Color: White, Size: 15 inches
Love the shelves. Nice touch to my bathroom. Easy enough to install. They're not holding anything too heavy so can't speak too much on that but they do have a nice width.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
K
Verified Purchase
Kaitlynn
Waukegan, US
★★★★★ 5
Good for light stuff
Color: Black, Size: 15 inches, Color: Black, Size: 15 inches
Good product. Very light though and if it’s in dry wall won’t hold something really heavy. I don’t think it would hold 20 pounds just light. I put over my washer and dryer and put one right on top that way I can put heavy stuff on that side without it weighing down and being ripped out of the wall. I won’t be putting heavy stuff on the right side I used 4 pieces and the wall is about 60-62 inches long
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Reviewed in the United States on December 5, 2025

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