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Radiator Coolant Hose. Porsche 992 GT3 2021>> / 992.1 GT3 CUP 2021 › 9GT1216
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 CUP 4.0L 2021-24
- Porsche 992.2 GT3 / Touring / S/C 2025>>
Radiator coolant hoses
These original Porsche coolant hoses form part of the radiator cooling circuit, helping route coolant between the radiator and related cooling system pipework to maintain correct engine temperature control.
Fits:
Porsche 992.1 GT3 2021 - 2025 (PR:A8G)
Porsche 992.2 GT3 2025 >>
Porsche 992.1 GT3 CUP 4.0L Model 2021
Diagram: 105-250, item 5 (Left) / 6 (Right)
Diagram: 1.1-18, item 8 (Left) / 9 (Right)
These hoses are used in the radiator / cooling system section on selected Porsche 992 GT3 and 992.1 GT3 Cup models.
What This Part Does / Functions:
• Routes coolant through the radiator cooling circuit
• Helps maintain correct coolant flow between cooling system components
• Supports engine temperature control during road or track use
• Helps maintain cooling system pressure and sealing
• Replaces a cracked, swollen, leaking or heat-damaged original hose
• Provides correct Genuine Porsche hose shape, material and connection fitment
• Supports reliable cooling system performance
• Helps preserve factory Porsche GT3 / Motorsport cooling layout.
Why Replace This Part?
Radiator coolant hoses are exposed to heat cycles, coolant pressure, vibration, track use, road debris and age-related rubber deterioration. Over time, a coolant hose can harden, swell, split, crack or leak. A failing hose may cause coolant loss, low coolant warnings, pressure loss or overheating risk.
Replacing damaged hoses with Genuine Porsche radiator coolant hoses helps restore correct factory coolant routing and reliable cooling system sealing.
When to Replace This Part
• If the original hose is cracked, swollen, leaking or damaged
• During radiator replacement or cooling system service
• When replacing related coolant pipes, clamps or radiators
• If coolant loss is traced to this hose
• After front-end, radiator duct or bumper repair
• During track car preparation or post-event inspection
• During preventative cooling system maintenance
• When restoring the cooling system with Genuine Porsche parts.
Where It Fits on the Car
These hoses fit in the radiator / cooling system area of the Porsche 992 GT3 and 992.1 GT3 Cup. They are associated with the radiator coolant hose routing and cooling system pipework.
Correct side and hose position should be confirmed before ordering, as 9GT121629 and 9GT121630 are paired cooling hose references.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9GT1216
The product you are viewing cross references to these numbers
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