Caterpillar D9 Bulldozer Turbo, Oil and Water Cooling. For sale: D9 bulldozer turbo by Caterpillar, in excellent condition and ready to work without any issues. The turbo features a dual cooling system (oil + water) to ensure optimal performance and durability under the harshest operating conditions. � Free shipping inside and outside the Kingdom. + For contact, call/WhatsApp: 0508035540 0504256596