All Mercedes 300GD, G350TD trucks equipped with OM603 engine runs hot,
especially at summer time.
Original Mercedes cooling system upgrade kit convert your 68mm water
pump to 72mm water pump to increase coolant flow and reduce engine
temperature.
All parts are original Mercedes factory parts, do not make shortcuts
with unreliable aftermarket water pumps.
No drilling, no cutting, no modifications, and professional factory appearance on finished product.