Water / Coolant Radiators

Racing and high performance radiators for all Porsche models make a great performance upgrade as well as an incredibly durable and reliable OE replacement.

Racing & high performance radiators for all Porsche models. CSF strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. All-aluminium 100% TIG welded, CNC machined brackets, mounting pins and "Quick-Connect" inlet/outlet pipes, Drop-in fit requiring no modifications , 2 row core with B-Tube technology (+20%), 1 hour hand polished, Track Tested & Proven in 110°F, ISO 9001 certified cooling system manufacture.

ENGINEERING
"B-Tube" Technology - Most efficient tube in the world
High Efficiency Louvered Fin
OE radial and deep drawn aluminium end tanks
Wind tunnel tested for optimal radiator core cooling performance
Stronger joint design for mountings, fan shrouds & condensers
OE Specific Mounting
"Drop-in" fitment requiring no modifications

CNC Machined brackets and fittings
Racing Style all-aluminium drain plug

MANUFACTURING
Brazed in CAB Furnace
ISO 9001/9002 certification
Privately owned factories with full "In house" tool rooms
"Master Class" TIG welding

TESTING
Individually leak tested
Vibration cycle tested
Thermal cycle tested
Burst pressure cycle tested 10,000 times for strength
Salt spray tested for corrosion protection

Cross reference numbers
Left: 9P1121251
Right: 9P1121252
Centre: 99110613502

Fits:
Porsche 991.2 Carrera / Carrera 4 - 2016 to 2018
Porsche 991.2 Carrera S / Carrera 4S - 2016 to 2018
Porsche 718 Boxster / S / T / GTS 2.0ltr - 2.5ltr - 2017 onwards
Porsche 718 Cayman / S / T / GTS 2.0ltr - 2.5ltr - 2017 onwards

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

RADKIT99101.CSF

The product you are viewing cross references to these numbers

Radiators and pipes replacement kit
OE Genuine Porsche radiators and pipework replacement kit for Porsche 991.2, 982 Boxster and 982C Cayman models. This complete cooling system kit includes left and right Genuine Porsche water radiators, matching coolant hoses, hose clamps and O-rings required for a front radiator and coolant pipework refresh.

Fits:
Porsche 991.2 Carrera 2016 - 2019
Porsche 991.2 GT2 RS 2016 - 2019
Porsche 991.2 GT3 / GT3 RS / Speedster 2016 - 2019

Porsche 982 (718) Boxster 2.0L / 2.5L 2017 >>
Porsche 982 (718) Boxster Spyder / GTS 4.0L 2017 >>

Porsche 982C (718) Cayman  2.0L / 2.5L 2017 >>
Porsche 982C (718) Cayman GT4 4.0L 2019>>

Diagram ref no 1, 9, 10, 20 and 21

This is a Genuine Porsche radiator and pipework replacement kit made up only of OE Genuine Porsche parts. It is designed for selected Porsche 991.2, 982 Boxster and 982C Cayman models where the front radiator assemblies and related coolant hoses require replacement.

The kit is ideal for replacing aged, leaking, corroded or damaged cooling components as a complete matched set rather than replacing individual parts separately.

What This Kit Does / Functions
•    Replaces the left and right front water radiators
•    Restores key radiator hose and coolant pipe connections
•    Helps maintain correct engine coolant flow through the front cooling circuit
•    Helps prevent coolant leaks from ageing hoses, O-rings and radiator connections
•    Supports correct cooling system pressure when installed correctly
•    Helps maintain stable engine operating temperature
•    Provides matching OE Porsche parts for a complete radiator-area service
•    Reduces the risk of reusing old clamps, seals or hoses during radiator replacement
•    Maintains original Porsche cooling system fitment, routing and quality.

Why Replace These Parts?
Radiators, hoses, seals and clamps are exposed to heat cycles, coolant pressure, road debris, moisture and age. Over time, the radiators can corrode or become blocked, hoses can harden or split, O-rings can flatten or leak, and clamps can weaken or corrode. Replacing these parts together with a Genuine Porsche OE kit helps restore the front cooling circuit, reduces the chance of future leaks and avoids reusing old sealing parts during radiator replacement. This is especially useful when both radiators are being renewed or when the vehicle has coolant loss, overheating symptoms or visible corrosion in the front radiator area.

When to Replace This Kit
•    If one or both front radiators are leaking
•    If the radiator cores are corroded, damaged or blocked
•    If coolant hoses are cracked, swollen, hardened or leaking
•    If coolant is leaking from hose joints or radiator connections
•    If the car has suffered front-end impact damage
•    During a full cooling system refresh or preventative maintenance
•    If the engine is running hotter than normal due to poor radiator condition
•    When replacing radiators and you want to renew the associated hoses, O-rings and clamps at the same time
•    If old clamps or seals are no longer suitable for reuse.

Where It Fits on the Car
This kit fits in the front cooling system / front radiator area of the vehicle. The left and right radiators sit in the front side radiator positions, with the included hoses, O-rings and clamps used to connect the radiators to the coolant pipework and front cooling circuit.

Exact hose routing and radiator layout may vary depending on model, engine type and vehicle specification.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

RADANDPIPEKIT991.2-982.OE

The product you are viewing cross references to these numbers

Radiators and pipes replacement kit
This OE Match radiators and pipes replacement kit is a complete cooling system service kit for Porsche 991.2, 982 Boxster, and 982C Cayman models. It includes left and right radiators, coolant hoses, hose clamps, and O-rings needed to support a thorough radiator and coolant pipe replacement.

Fits:
Porsche 991.2 Carrera 2017 - 2019
Porsche 991.2 GT2 RS 2017 - 2019
Porsche 991.2 GT3 / GT3 RS / Speedster 2017

Porsche 982 (718) Boxster 2.0L / 2.5L 2017 >>
Porsche 982 (718) Boxster Spyder / GTS 4.0L 2017 >>

Porsche 982C (718) Cayman  2.0L / 2.5L 2017 >>
Porsche 982C (718) Cayman GT4 4.0L 2019>>

Diagram ref no 1, 9, 10, 20 and 21

The kit helps restore the main front cooling circuit by replacing key radiator and coolant hose components. The radiators dissipate heat from the coolant, while the hoses, clamps, and O-rings help maintain coolant flow, system pressure, and leak-free connections throughout the cooling system.

Functions
•  Replaces the left and right coolant radiators
•  Includes left and right coolant hoses for feed and return positions
•  Supports correct coolant circulation through the radiator circuit
•  Helps maintain stable engine operating temperature
•  Helps prevent coolant leaks, pressure loss, and overheating
•  Includes clamps and O-rings for secure hose and pipe sealing
•  OE Match replacement kit for cooling system repair and maintenance.

Why Replace This Kit?
Radiators, hoses, clamps, and O-rings are exposed to heat, pressure, road debris, moisture, coolant additives, vibration, and age-related wear. Over time, radiators can corrode, block, leak, or suffer impact damage, while hoses can crack, swell, split, or harden. Clamps may lose tension or corrode, and O-rings can flatten, perish, or leak. Replacing these components together helps restore reliable cooling system performance and reduces the risk of repeated coolant leaks.

When to Replace This Kit
•   One or both radiators are leaking, corroded, blocked, or damaged
•   Coolant hoses are cracked, swollen, soft, brittle, or split
•   Coolant leaks are visible around radiator, hose, or pipe connections
•   The vehicle shows low coolant warnings or overheating symptoms
•   Front cooling system components have suffered impact or road debris damage
•   The cooling system is being overhauled or preventative maintenance is being carried out
•   Clamps and O-rings are being replaced to ensure secure sealing during radiator work.

Where it fits on the car
This kit fits within the front radiator and coolant hose circuit on Porsche 991.2, 982 Boxster, and 982C Cayman models. The left and right radiators fit in their respective radiator positions, while the included hoses, clamps, and O-rings support the coolant feed and return connections.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

RADANDPIPEKIT991.2-982.OEM

The product you are viewing cross references to these numbers