Continental 63641

Continental 63641 is a molded heater hose. The hose works in the coolant circuit between engine, heater or bypass fittings, depending on the exact application.

Application / fitment

63641 is listed as a molded heater hose / molded bypass hose for selected GM truck / SUV cooling systems. Confirmed catalogue applications include Chevrolet C1500 / K1500 and GMC C1500, K2500 Suburban and Yukon with 5.0 / 305 and 5.7 / 350 engines from 1996-2000, depending on heater equipment and hose position.

• part type: heater hose
• type: molded hose
• catalogue position: pipe to water pump / pipe-1 to water pump / valve-1 to pipe-2
• selected Chevrolet/GMC C/K, Suburban and Yukon 5.0 / 305 and 5.7 / 350
• both-end inside diameter: 0.625" / 15.88 mm
• length: 5" / 127 mm

Before installation, make sure the hose is not twisted or kinked. Replace clamps if corroded or weak, and check fitting tightness again after the engine reaches operating temperature.

Technical information

• part type: coolant hose
• end 1 inside diameter: 0.625" / 15.88 mm
• end 2 inside diameter: 0.625" / 15.88 mm
• hose length: 5" / 127 mm
• material: EPDM
• SAE specification: SAE 20R3EC Class D1 / D2
• molded: yes
• sale unit: 1 piece