Mackay Bottom Radiator Hose for Toyota Coaster (3.4L) – Model Numbers BB20R, BB21R, BB26R, BB31R (Lower Position)

Upgrade your Toyota Coaster cooling system with the Mackay CH2315 Bottom Radiator Hose – a premium replacement designed for durability, strength, and reliable performance. Manufactured in Australia with over 85 years of automotive expertise, Mackay delivers an uncompromising quality component engineered to keep your vehicle running smoothly.

Key Features:

• Premium Material Construction: Made from high-quality EPDM rubber for exceptional resistance to heat, water, and ozone weathering, ensuring a long service life even in demanding conditions.
• Superior Electrochemical Degradation (ECD) Protection: Specially formulated to prevent premature splitting and fatigue caused by electrical reactions between engine metals and coolant fluids.
• Reinforced for Strength: Embedded Aramid/Rayon lockstitch reinforcement provides maximum structural integrity and burst resistance, surpassing SAE J20R4 standards for radiator hoses.
• Precise Fitment: Designed specifically for the lower radiator position on Toyota Coaster models BB20R, BB21R, BB26R, and BB31R with 3.4L engines. OEM cross-reference: Toyota 16572-58021.
• Dimensions: 600 mm length with 36 mm inside diameter and 45 mm bell diameter to ensure a perfect fit and secure connection.
• Strictly for Coolant Use: Rated exclusively for water and coolant flow — not suitable for fuel, oil, or brake fluid.

Trusted Australian Manufacturing

Mackay has been a trusted name in automotive parts since 1939, pioneering innovations like bonding rubber to metal and supplying parts for iconic Australian vehicles such as the FX Holden (1948) through the VF Holden (2017). Designed and manufactured in Melbourne, Mackay products are known worldwide for uncompromised quality and performance.

Why Choose Mackay Bottom Radiator Hose?

Ensure optimal engine cooling and prevent costly overheating by replacing worn or damaged radiator hoses with the Mackay CH2315. Its robust construction and precision engineering make it the perfect choice for Toyota Coaster owners who demand reliability and longevity from their vehicle’s cooling system.

Get your Toyota Coaster back on the road with Mackay – quality you can trust, performance you can depend on. Order your Bottom Radiator Hose today!