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Water Pump and Ancillary Hoses
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
Fit:
Porsche 924 1976-85
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
046121051
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
The OE Match Engine Coolant Water Pump Hose is a replacement cooling-system hose for selected Porsche 924 2.0L models.
Fit:- Porsche 924 1976-85
Diagram Ref No 1
Located within the engine water-cooling circuit, this hose connects into the water-pump side of the system and carries engine coolant as it circulates between the engine and the rest of the cooling network.
The water pump is responsible for continuously moving coolant through the engine, hoses and radiator. The hose therefore forms an important part of the sealed, pressurised cooling circuit.
Over time, repeated exposure to hot coolant, cooling-system pressure, engine-bay heat and vibration can cause the original rubber hose to harden, swell, crack or weaken internally.
A deteriorated hose can begin with only a small seep but may eventually split or rupture, causing rapid coolant loss and potentially serious engine overheating.
Replacing an ageing or damaged water-pump hose helps restore coolant-system integrity, maintain correct circulation and protect the engine from excessive operating temperatures.
What This Product Does:
The Engine Coolant Water Pump Hose carries coolant through the water-pump section of the engine cooling circuit.
Its main functions are to:
- Carry coolant to or from the water pump.
- Maintain continuous coolant circulation.
- Help regulate engine operating temperature.
- Maintain a sealed cooling system.
- Withstand normal cooling-system pressure.
- Accommodate engine vibration and thermal movement.
- Prevent coolant loss.
- Support correct radiator and engine cooling performance.
Symptoms Of Wear Or Failure:
Common symptoms include:
- Visible coolant leakage.
- Coolant residue around the hose.
- Damp hose ends.
- Gradual coolant loss.
- Low coolant level.
- Sweet coolant smell.
- Drips beneath the vehicle.
- Cracks in the rubber.
- Hardened hose material.
- Soft or swollen sections.
- Bulging.
- Leakage around clamps.
- Engine temperature rising above normal.
- Steam following a major leak.
Why Replacement Matters:
Replacing a worn or damaged Engine Coolant Water Pump Hose helps restore:
- Correct coolant circulation.
- Cooling-system pressure integrity.
- Reliable sealing.
- Stable engine temperature.
- Reduced risk of sudden coolant loss.
- Long-term cooling-system reliability.
- Protection against overheating.
A replacement hose is a relatively inexpensive preventative repair compared with the potential cost of engine damage caused by overheating.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
046121051
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
Fits:
Porsche 924 2.0L 1976-85
Click 'Zoom in' for large parts diagram.
Diagram ref no 31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
047121175
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
Fits:
Porsche 924 1976-85
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
046121053
The product you are viewing cross references to these numbers
Water Pump & Ancillary Hoses – Essential Cooling Components for Porsche Performance
Water pump and ancillary hoses are key elements of your Porsche’s cooling system, ensuring efficient coolant circulation between the water pump, radiator, expansion tank, and engine block. These hoses deliver and regulate coolant flow, maintaining stable engine temperatures and preventing overheating under high-performance conditions.
At Design911, we stock a comprehensive range of genuine and manufacturer-quality water pump and ancillary hoses for Porsche models including transaxle, 911, Boxster, Cayman, Cayenne, Macan, and Panamera. Each hose is designed for precise fitment, high temperature resistance, and long-term reliability — matching the quality and durability of the original factory components.
What Do Water Pump & Ancillary Hoses Do?
Water pump and ancillary hoses work together as part of the
cooling network to:
- Circulate
coolant through the engine, radiator, and water pump.
- Regulate
temperature for optimal engine efficiency and longevity.
- Maintain
coolant pressure and prevent system airlocks.
- Support auxiliary components such as heater cores and turbo cooling lines.
These hoses ensure consistent coolant flow throughout the system, enabling your Porsche to perform safely at high temperatures and speeds.
Why Do Water Pump and Ancillary Hoses Fail?
Over time, hoses are exposed to constant heat, vibration,
and chemical contact with coolant — factors that can lead to wear and failure.
Common causes include:
- Thermal
degradation from repeated heating and cooling cycles.
- Cracking
or hardening of rubber due to age or coolant additives.
- Leaks
at hose ends or clamps from loss of flexibility or pressure.
- Abrasion
or rubbing against surrounding components.
- Swelling or soft spots from internal coolant corrosion.
Symptoms of failure include coolant leaks, overheating, visible cracks, or the smell of coolant in the engine bay.
Why Replace Faulty Water Pump & Ancillary Hoses?
A leaking or degraded hose can cause serious engine damage by disrupting coolant circulation and leading to overheating. Replacing old or worn hoses ensures your Porsche’s cooling system functions efficiently and safely.
Benefits of replacement include:
- Restored coolant flow and system pressure.
- Prevention of leaks and overheating.
- Enhanced reliability and performance under load.
- Manufacturer-quality materials and factory-accurate fitment.
All hoses in this range are constructed from high-performance, reinforced rubber compounds that meet or exceed Porsche’s engineering standards, ensuring long-term durability, flexibility, and heat resistance.
