Home » Aluminum Engine Heater Core Bypass Kit With 5/8 And 3/4 Hose Fittings

Aluminum Engine Heater Core Bypass Kit With 5/8 And 3/4 Hose Fittings

SKU: 1005010382149753-full kits
Color
€42,33
-37% €67,72 €42,33

Eliminate slow coolant leaks from brittle plastic adapters by installing this aluminum billet bypass kit, engineered to bridge standard 5/8-inch and 3/4-inch heater hoses with reliable fluid routing. Cold weather exposes weak plastic connections to repeated thermal expansion, causing cracks that reduce cabin warmth and pressure loss. This assembly replaces those vulnerable points with corrosion-resistant aluminum fittings and a durable U-shaped rubber tube, restoring steady circulation through the engine heater core without requiring custom fabrication or specialty tools. Simple bolt-in geometry matches most common automotive layouts, keeping maintenance straightforward and preventing unexpected roadside breakdowns during winter operations.

Benefits & Practical Tips

  • Remove failing plastic junctions to stop gradual coolant loss and keep passenger heating consistent.
  • Apply thread-safe torque when tightening aluminum couplings; overtightening can strip machined internal threads.
  • Match the fitting pair size to your existing hose diameter before routing the bypass line across the firewall.

Product Specifications

  • Core Material: Aluminum alloy billets paired with reinforced rubber tubing
  • Hose Shape: U-design optimized for standard heater core clearance paths
  • Fitting Configurations: 5/8" to 5/8", 5/8" to 3/4", and 3/4" to 3/4"
  • Compatibility: Integrates with most common automotive heater hose assemblies
  • Mounting Hardware: Pre-sized stainless steel worm clamps included for secure band sealing

Package includes:

  • 1 x U-shaped rubber bypass hose
  • Variable hose fitting ends covering 5/8"–5/8", 5/8"–3/4", and 3/4"–3/4" options
  • 4 x metal hose clamps for leak-free joint compression

Installation Notes

  • Depressurize and drain the cooling loop completely before removing original hardware.
  • Flush the interior of the rubber hose before assembly to prevent debris restriction.
  • Test for drips after initial startup; minor settling may require a final half-turn clamp adjustment.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Precision-engineered components delivered safely since 2002 via intercyprus.com — trusted by builders who demand consistent part reliability.