The New Holland 84043434 radiator cap is an authentic OEM component designed to maintain the correct pressure within the cooling system of New Holland agricultural and construction machinery. This genuine 1.0 bar (100 kPa) pressure cap ensures efficient heat dissipation and prevents coolant loss, critical for engine longevity and performance. It is a direct replacement for part number 87696660 and fits a wide range of New Holland tractors, combines, forage harvesters, telehandlers, wheel loaders, dozers, and skid steers, providing a secure seal and reliable operation.