HOLT CAT Weslaco TX Caterpillar is an authorized dealer for Cat equipment sales, service, parts, rentals for heavy equipment machinery, construction equipment. Caterpillar truck machine rental, repair & service. HOLT CAT Weslaco is a Caterpillar dealer for Cat equipment sales, service, parts and rentals. Established in 1933, HOLT CAT sells, services and rents heavy equipment, engines and generators for construction, earth moving, mining, industrial, petroleum and agriculture. HOLT CAT is Weslaco’s authorized Caterpillar dealer for Cat equipment sales, service, parts and rentals. Established in 1933, HOLT CAT sells, services and rents heavy equipment, engines and generators for construction, earthmoving, mining, industrial, petroleum and agriculture. HOLT CAT Weslaco sells and services a full line of agricultural machinery, accessories and parts.