---
product_id: 500155136
title: "Heater Core Crossover Coolant Hose 5/8\" End and 3/4\" End with 2PCS Clamps for LS for LT"
brand: "pqy"
price: "S$42"
currency: SGD
in_stock: true
reviews_count: 5
category: "Pqy"
url: https://www.desertcart.sg/products/500155136-heater-core-crossover-coolant-hose-5-8-end-and-3
store_origin: SG
region: Singapore
---

# High-temp silicone build Includes 2 stainless steel clamps Dual-end size fit: 5/8" & 3/4" Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT

**Brand:** pqy
**Price:** S$42
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your ride’s heartbeat with precision coolant control!

## 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?** S$42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/500155136-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

- • **Trusted by Enthusiasts:** Highly rated (4.8/5) with rave reviews praising fit and quality—join the community of satisfied pros.
- • **Premium Silicone Durability:** Engineered to withstand extreme heat and pressure for long-lasting performance.
- • **Complete Replacement Solution:** Directly replaces failed heater core hoses, restoring optimal coolant flow instantly.
- • **Secure Stainless Steel Clamps:** Includes two corrosion-resistant clamps for leak-proof, worry-free installation.
- • **Precision Fit for LS/LT Engines:** Custom-tailored ends (5/8" & 3/4") ensure seamless integration with 98-up LS LT GEN 3-5 models.

## Overview

This Heater Core Crossover Coolant Hose features a high-quality silicone construction with dual-end sizes (5/8" and 3/4") designed specifically for 98-up LS and LT GEN 3-5 engines. It includes two stainless steel clamps for secure installation and serves as a direct replacement for failed heater core hoses, ensuring reliable coolant flow and engine performance.

## Description

for LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LS2 LH6 L92 L76 LY2 LY5 LY6 LC9 LFA LH8 LMG LS3 L98 L9H L20 L94 LZ1 L99 L96 LC8 L77

Review: Fits as stated. Rubber quality seems good.
Review: nicely packaged great fit

## Features

- This hose is made of high quality sicilone,come 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 Required? | No |
| Batteries included? | No |
| Colour | Black |
| Customer Reviews | 4.8 4.8 out of 5 stars (300) |
| Date First Available | 15 Nov. 2021 |
| Item Weight | 45.4 g |
| Item model number | 551699 |
| Manufacturer | PQY |
| Material | Rubber |
| Number of Pieces | 1 |
| Package Dimensions | 13.89 x 10.49 x 3.71 cm; 45.36 g |
| Size | 0.75 Inch |

## Product Details

- **Brand:** PQY
- **Colour:** Black
- **Connector type:** Cross
- **Exterior finish:** Stainless Steel
- **Item weight:** 45 g
- **Material:** 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)
![Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT - Image 2](https://m.media-amazon.com/images/I/61wqWPq6cfL.jpg)
![Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT - Image 3](https://m.media-amazon.com/images/I/61evEJytSpL.jpg)
![Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT - Image 4](https://m.media-amazon.com/images/I/51P5kQMTmcL.jpg)
![Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT - Image 5](https://m.media-amazon.com/images/I/51IXvIo4yEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***R on 9 January 2026*

Fits as stated. Rubber quality seems good.

### ⭐⭐⭐⭐⭐ Review
*by A***Z on 4 February 2026*

nicely packaged great fit

### ⭐⭐⭐⭐⭐ Review
*by B***Z on 4 February 2026*

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

## Frequently Bought Together

- PQY Heater Core Crossover Coolant Hose 5/8" End and 3/4" End with 2PCS Clamps for LS for LT
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- 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.sg/products/500155136-heater-core-crossover-coolant-hose-5-8-end-and-3](https://www.desertcart.sg/products/500155136-heater-core-crossover-coolant-hose-5-8-end-and-3)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-19*