---
product_id: 390804923
title: "Heater Core Crossover Coolant Hose 5/8\" End and 3/4\" End with 2PCS Clamps for LS for LT"
brand: "pqy"
price: "3060 kr"
currency: ISK
in_stock: true
reviews_count: 9
category: "Pqy"
url: https://www.desertcart.is/products/390804923-heater-core-crossover-coolant-hose-5-8-end-and-3
store_origin: IS
region: Iceland
---

# High-temp silicone rubber 2 stainless steel clamps included Fits LS/LT Gen 3-5 engines Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT

**Brand:** pqy
**Price:** 3060 kr
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your ride’s heat game — don’t get left out in the cold!

## Quick Answers

- **What is this?** Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT by pqy
- **How much does it cost?** 3060 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/390804923-heater-core-crossover-coolant-hose-5-8-end-and-3)

## Best For

- pqy enthusiasts

## Why This Product

- Trusted pqy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Direct Replacement Ready:** Eliminate downtime with a perfect-fit hose designed to replace your failed heater core hose instantly.
- • **Responsive Customer Support:** PQY guarantees a 24-hour response time (excluding weekends/holidays) for any product concerns.
- • **Durable Silicone Construction:** Crafted from premium high-temp silicone rubber for superior heat resistance and longevity.
- • **Secure Stainless Steel Clamps:** Includes 2 corrosion-resistant clamps ensuring leak-proof, reliable connections every time.
- • **Precision Fit for LS/LT Engines:** Seamlessly replaces heater core hoses on 98-up LS/LT Gen 3-5 engines with 5/8" & 3/4" ports.

## Overview

The PQY Heater Core Crossover Coolant Bypass Hose is a high-quality silicone rubber hose designed for LS/LT Gen 3-5 engines, featuring 5/8" and 3/4" ends and two stainless steel clamps for secure installation. It serves as a direct replacement for failed heater core hoses, ensuring durability, heat resistance, and a perfect fit with responsive customer support.

## Description

Buy PQY Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT: Heater - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: nicely packaged great fit - nicely packaged great fit
Review: Good for 4.8,5.3,6.0,6.2 - Worked perfectly. I used this since I’m not running a heater

## Features

- This heater core hose is made of high quality silicone rubber,comes with 2pcs stainless steel clamps
- The hose is used to adjust the heater hose outlets of your LS/LT engine water pump,can be a direct replacement for your entire failed heater core
- Hose Ends Size: One end is 5/8" and the other is 3/4"
- Compatible with 98-up LS LT GEN 3 4 5 Engine with 5/8" and 3/4" heater supply and return ports.
- PQY CUSTOMER SERVICE:If you have any problem ,please contact us and we will respond you in 24 hours except weekends and holidays.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09LV2KH1H |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #16,229 in Automotive ( See Top 100 in Automotive ) #10 in Automotive Replacement Heater Hoses |
| Brand | PQY |
| Color | Black |
| Connector Type | Cross |
| Customer Reviews | 4.8 4.8 out of 5 stars (306) |
| Date First Available | November 15, 2021 |
| Exterior Finish | Stainless Steel |
| Item Weight | 1.6 ounces |
| Item model number | 551699 |
| Manufacturer | PQY |
| Material | Silicone Rubber |
| Number of Pieces | 1 |
| Package Dimensions | 5.47 x 4.13 x 1.46 inches |
| Size | 0.75 Inch |
| Thread Size | 0.75 inch |
| Thread Type | NPT |
| UPC | 784136203275 |

## Product Details

- **Brand:** PQY
- **Color:** Black
- **Connector Type:** Cross
- **Exterior Finish:** Stainless Steel
- **Item Weight:** 0.1 Pounds
- **Material:** Silicone Rubber
- **Number of Pieces:** 1
- **Size:** 0.75 Inch
- **Thread Size:** 0.75 inch
- **Thread Type:** NPT

## Images

![Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT - Image 1](https://m.media-amazon.com/images/I/515jHp3juqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ nicely packaged great fit
*by A***Z on February 4, 2026*

nicely packaged great fit

### ⭐⭐⭐⭐⭐ Good for 4.8,5.3,6.0,6.2
*by B***Z on February 4, 2026*

Worked perfectly. I used this since I’m not running a heater

### ⭐⭐⭐⭐⭐ Works great for my mustang
*by C***R on May 17, 2025*

The included clamps were tossed. I put these on my fox body coolant thing to just loop it and bypass the heater core

## Frequently Bought Together

- PQY Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT
- ICT Billet SBC Vehicle to LS Engine - Motor Mount Adapter Plate - Universal Swap Bracket Small Block LS Conversion Adjustable LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 LR4 Billet 551628
- Oil Pressure Sensor Adapter for GM LS Series Engines LS1 LSX LS3 5.3L 6.0L 6.2L M16 1.5

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**Shop now:** [https://www.desertcart.is/products/390804923-heater-core-crossover-coolant-hose-5-8-end-and-3](https://www.desertcart.is/products/390804923-heater-core-crossover-coolant-hose-5-8-end-and-3)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-09*