Application2002compatible for Cadillac Escalade 2002compatible for Cadillac Escalade EXT 2002compatible for Chevrolet Avalanche 1500 2000-2002compatible for Chevrolet Blazer 1999-2002compatible for Chevrolet Silverado 1500 2001-2002compatible for Chevrolet Silverado 1500 HD 2000-2002compatible for Chevrolet Suburban 1500 2000-2002compatible for Chevrolet Tahoe 1999-2002compatible for GMC Sierra 1500 2001-2002compatible for GMC Sierra 1500 HD 2000-2002compatible for GMC Yukon 2000-2002compatible for GMC Yukon XL 1500 2001-2002compatible for GMC Yukon XL 2500OEMandPart number18040252 18048538 18060789 19209249SpecificationBore Diameter: 34 mm Forward Outlet Size: 1/2-20 Installation Hardware Included:No Material: Aluminum Number of Outlets: 2 Rearward Outlet Size: 1/2-20 Reservoir Included: Yes Sensor Included: Yes