---
product_id: 257707818
title: "LS Heater Core Bypass Hose Coolant Crossover 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 551699"
brand: "ict billet"
price: "9967 kr"
currency: ISK
in_stock: true
reviews_count: 5
url: https://www.desertcart.is/products/257707818-ls-heater-core-bypass-hose-coolant-crossover-ls1-lm7-lr4
store_origin: IS
region: Iceland
---

# Tightest bend radius Compatible with all LS/LT engines Custom molded design LS Heater Core Bypass Hose Coolant Crossover 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 551699

**Brand:** ict billet
**Price:** 9967 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Engine's Performance with the Ultimate Bypass Hose!

## Quick Answers

- **What is this?** LS Heater Core Bypass Hose Coolant Crossover 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 551699 by ict billet
- **How much does it cost?** 9967 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/257707818-ls-heater-core-bypass-hose-coolant-crossover-ls1-lm7-lr4)

## Best For

- ict billet enthusiasts

## Why This Product

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

## Key Features

- • **Heater Core Bypass:** Ideal for vehicles no longer using the heater core, streamlining your engine's cooling system.
- • **Lightweight Design:** Weighing only 59g, this hose is easy to handle and install without adding unnecessary bulk.
- • **Unmatched Flexibility:** Experience the tightest bend radius on the market, ensuring a perfect fit for your LS/LT engine.
- • **Heavy-Duty Construction:** Crafted from premium rubber, this hose outperforms factory options for durability and reliability.
- • **Universal Compatibility:** Designed for all LS and LT series engines from 1998 onwards, making it a versatile choice for your vehicle.

## Overview

The ICT Billet LS Heater Core Bypass Hose (Part No. 551699) is a custom molded, heavy-duty rubber hose designed for LS and LT series engines from 1998 and newer. Weighing just 59g and featuring the tightest bend radius on the market, this hose is perfect for vehicles that have eliminated the heater core, ensuring optimal coolant flow and performance.

## Description

ICT BilletLS Heater Core Bypass Hose Coolant Crossover 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 551699

## Features

- This is the tightest bend radius hose on the market (custom molded heavy duty hose, better than factory hose)
- Used to loop the heater hose outlets of your LS/LT engine water pump
- Compatible with all LS or LT series engines from 1998 and newer
- Used with vehicles that are no longer using the heater core
- Includes 1 black rubber hose

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ICT Billet |
| Part number | 551699 |
| Item Weight | 59 g |
| Product Dimensions | 11.18 x 8.13 x 2.79 cm; 59 g |
| Item model number | 551699 |
| Color | Natural |
| Material | Rubber |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** ICT Billet
- **Color:** Natural
- **Global Trade Identification Number:** 00682384790816
- **Item Length:** 1 Inches
- **Manufacturer:** ICT Billet
- **Material:** Rubber
- **Nominal Wall Thickness:** 0.12 inches
- **Specific Uses For Product:** Vehicle use (LS/LT series engines, no heater core)
- **UPC:** 682384790816

## Images

![LS Heater Core Bypass Hose Coolant Crossover 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 551699 - Image 1](https://m.media-amazon.com/images/I/61aWNXtWtPL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Best heater core bypass
  

*by J***  on Reviewed in the United States on 14 October 2024*

Works great for LS swaps to bypass your heater coreFits 4.8,5.3,6.0,L92

### ⭐⭐⭐⭐⭐ 







  
  
    Very good.
  

*by W***N on Reviewed in Canada on 16 November 2020*

Nice

### ⭐⭐⭐⭐⭐ 







  
  
    Real good part to do heater core bypass
  

*by V***L on Reviewed in the United States on 15 July 2020*

Work really good when you got to do a heater core bypass, you wont have your heater anynore but your radiator fluid will quite leaking if the heater core caused it to leakThis makes sure it wont pinch the hoses also when you do it

## Frequently Bought Together

- ICT Billet LS Heater Core Bypass Hose Coolant Crossover 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 551699
- PQY 36" Braided Throttle Cable Kit Compatible with 97-07 Chevrolet/Chevy LS1 Engine 4.8L 5.3L 5.7L 6.0L
- Lokar TCB-40LS1 LS1 Throttle Cable Bracket for GM Throttle Body with 3" Linkage Cam

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.is/products/257707818-ls-heater-core-bypass-hose-coolant-crossover-ls1-lm7-lr4](https://www.desertcart.is/products/257707818-ls-heater-core-bypass-hose-coolant-crossover-ls1-lm7-lr4)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-24*