Mackay Engine Bypass / Heater Hose for Holden V8 HQ HJ HX HZ WB
Ensure your Holden’s cooling system runs flawlessly with the Mackay CH1123 Engine Bypass / Heater Hose — a premium-quality replacement part engineered for durability and performance. Crafted from tough, high-durability rubber, this hose is specifically designed to withstand the harshest under-bonnet conditions, including extreme heat and electrochemical wear, delivering long-lasting reliability.
Key Features:
- Exact OE Replacement: Precision engineered to meet or exceed strict ISO standards, guaranteeing a perfect fit and preventing coolant leaks.
- Durable Construction: Made in Australia with over 85 years of Mackay’s heritage in automotive manufacturing.
- Optimal Cooling Performance: Maintains efficient coolant flow between the manifold outlet and water valve or heater inlet to support your engine’s temperature regulation.
- High Compatibility: Designed for Holden Statesman HQ 4.1L (manifold outlet to water valve with heater), Holden WB 4.1L, and 5.0L (valve to heater inlet) models.
Product Specifications:
- Product Type: Heater Hose / Engine Bypass Hose
- Material: High-Durability Rubber
- Inside Diameter: 16 mm
- Length: 240 mm
- Fitment: Manifold outlet to water valve or valve to heater inlet (includes emission control)
Why Choose Mackay?
With over 85 years of automotive expertise, Mackay remains a trusted Australian manufacturer renowned for uncompromising quality and innovation — from bonding rubber to metal on the first FX Holden in 1948 to supplying parts for the VF Holden in 2017. Mackay Automotive products are proudly made in Melbourne and exported worldwide, ensuring you get a part that stands the test of time.
Upgrade your Holden’s engine cooling system today with the Mackay CH1123 Engine Bypass / Heater Hose — the smart choice for performance, reliability, and peace of mind.