SET OF ONE CONNECTOR and ONE CLAMP: Muzzys 800-403 UPGRADED stronger than OEM Heater Core Connector with Clamp for 5/8" Heater Core Inlets and Outlets and 5/8" Hoses. Does NOT fit 3/4" tubes. FITS THE FOLLOWING VEHICLES AND MANY MORE: 2004-07 Buick Rainier 2002-05 Buick Rendezvous 2002-06 Cadillac Escalade, Escalade ESV/EXT 2004-07 Chevrolet Colorado 1997-03 Chevrolet Malibu 2002-03 Chevrolet Silverado 3500 V8 6.6L Turbo Diesel 2000-06 Chevrolet Suburban 1500/2500 2000-06 Chevrolet Tahoe V8 4.8L, 5.3L 2002-09 Chevrolet Trailblazer, Trailblazer EXT 1997-05 Chevrolet Venture 1986-94 Ford Aerostar 1986-89 Ford Bronco, Bronco II 1986-89 Ford E150/E250/E350 Econoline, Econoline Club Wagon V8 4.9L, 5.0L, 5.8L 1986-89 Ford F150 Truck L6 4.9L 1997-00 Ford F150 Truck V6 4.2L, V8 4.6L 1986-89 Ford F150 Truck V8 5.0L, 5.8L 1997 Ford F250 HD V8 6.6L Turbo Diesel 1997 Ford F250 HD V8 4.9L, 5.0L 1986-97 Ford F250 Truck V8 4.9L, 5.0L, 6.6L Turbo Diesel 1988-89 Ford F350 Truck V8 5.8L, 7.5L, 7.3L Turbo Diesel 1986-87 Ford F350 Truck V8 6.6L Turbo Diesel 1986-89 Ford F350 Truck V8 4.9L 1988-89 Ford F53, F59 1986-89 Ford Ranger 2004-07 GMC Canyon 2005-09 GMC Envoy V8 5.3L 2002-09 GMC Envoy L6 4.2L 2002-06 GMC Envoy XL 2004-05 GMC Envoy XUV 2002-04 GMC S-15 Sonoma 2002-03 GMC Sierra 3500 V8 6.6L Turbo Diesel 2001-06 GMC Yukon V8 6.0L 2000-06 GMC Yukon V8 4.8L, 5.3L 2000-06 GMC Yukon XL 1500/2500 1997-98 Olds Achieva 1999-04 Olds Alero V6 3.4L 1999-01 Olds Alero L4 2.4L 2002-04 Olds Bravada 1997-99 Olds Cutlass 1997-04 Olds Silhouette 2001-05 Pontiac Aztek 1999-05 Pontiac Grand Am 1999-05 Pontiac Montana 1997-98 Pontiac Trans Sport 2005-09 Saab 9-7X L6 4.2L