--- 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: "82.35 DT" currency: TND in_stock: true reviews_count: 9 category: "Pqy" url: https://www.desertcart.tn/products/390804923-heater-core-crossover-coolant-hose-5-8-end-and-3 store_origin: TN region: Tunisia --- # High-temp silicone rubber 2 stainless steel clamps included Fits 98+ 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:** 82.35 DT **Availability:** βœ… In Stock ## Summary > πŸ”₯ Upgrade your ride’s heat game with PQY’s precision crossover hose! ## 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?** 82.35 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - β€’ **Trusted by Enthusiasts:** Highly rated with 4.8 stars and proven reliability in performance builds and daily drivers alike. - β€’ **Complete Installation Kit:** Includes 2 stainless steel clamps for secure, leak-free connections right out of the box. - β€’ **Direct Replacement Solution:** Seamlessly replaces failed heater core hoses to restore your vehicle’s heating system with zero hassle. - β€’ **Premium Silicone Durability:** Engineered to withstand extreme heat and pressure for long-lasting performance. - β€’ **Precision Fit for LS/LT Engines:** Custom-designed crossover hose perfectly matches 5/8" and 3/4" heater ports on Gen 3-5 LS/LT engines. ## Overview The PQY Heater Core Crossover Coolant Bypass Hose is a high-quality silicone rubber hose designed for 1998 and newer LS/LT Gen 3-5 engines. Featuring a 5/8" and 3/4" end size, it includes two stainless steel clamps for secure installation. This hose serves as a direct replacement for failed heater core hoses, ensuring reliable coolant flow and engine heating. With a 4.8-star rating and durable construction, it’s a trusted choice for automotive enthusiasts seeking performance and longevity. ## 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 βœ“ FREE DELIVERY possible on eligible purchases Review: Heater core bypass. - Worked great on my SBF 302 Review: nicely packaged great fit - nicely packaged great fit ## 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 | | Best Sellers Rank | #17,150 in Automotive ( See Top 100 in Automotive ) #12 in Automotive Replacement Heater Hoses | | Brand Name | PQY | | Color | Black | | Connector Type | Cross | | Customer Reviews | 4.8 4.8 out of 5 stars (320) | | Exterior Finish | Stainless Steel | | Item Weight | 0.1 Pounds | | Manufacturer | PQY | | Material Type | Silicone Rubber | | Model Number | 551699 | | Number of Pieces | 1 | | Size | 0.75 Inch | | Thread Size | 0.75 inch | | Thread Type | NPT | | UPC | 784136203275 | | Unit Count | 1.0 Count | ## 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 ### ⭐⭐⭐⭐⭐ Heater core bypass. *by F***Z on February 18, 2026* Worked great on my SBF 302 ### ⭐⭐⭐⭐⭐ nicely packaged great fit *by A***Z on February 4, 2026* nicely packaged great fit ### ⭐⭐⭐⭐⭐ 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 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/390804923-heater-core-crossover-coolant-hose-5-8-end-and-3](https://www.desertcart.tn/products/390804923-heater-core-crossover-coolant-hose-5-8-end-and-3) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-03*