Parker HT-1000 (part number 406030) is a 1-gallon jug of Parker's proprietary hydrostatic transmission fluid, engineered exclusively for use in Parker HT Series hydrostatic drive transmissions. Formulated with an API Group II base oil and Parker's advanced additive chemistry, the HT-1000 is the factory-fill fluid in all Parker HTE, HTJ, and HTG series transmissions and is the OEM-specified fluid for 1,000-hour first service intervals.
