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For 1990-2009 cars
Makes 🢒 Chevrolet 🢒 2004 🢒 C-Series Medium Duty Truck C6/7/8 - Mexico 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Inlet Hose Replacement

Radiator Inlet Hose Replacement L18

Removal Procedure

    Object Number: 742053 Size: SH
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Loosen the inlet hose clamp (2) at the coolant crossover.
  3. Remove the inlet hose (1) from the coolant crossover.

    4. Object Number: 742054 Size: SH
  4. Remove the inlet hose clip bolt at the hose support.

    5. Object Number: 742056 Size: SH
  5. Remove the inlet hose clip bolt at the hose support.

    6. Object Number: 742058 Size: SH
  6. Loosen the inlet hose clamp (1) at the radiator.
  7. Remove the inlet hose (4) from the radiator.

Installation Procedure

    Object Number: 742058 Size: SH
  1. Install the inlet hose (4) to the radiator.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Tighten the inlet hose clamp (1) at the radiator.

    3. Tighten
    Tighten the inlet hose clamp to 5 N·m (44 lb in).


    Object Number: 742056 Size: SH
  3. Install the inlet hose clip bolt at the hose support.

    4. Tighten
    Tighten the clip bolt to 5 N·m (44 lb in).


    Object Number: 742054 Size: SH
  4. Install the inlet hose clip bolt at the hose support.

    5. Tighten
    Tighten the clip bolt to 5 N·m (44 lb in).


    Object Number: 742053 Size: SH
  5. Install the inlet hose (1) to the coolant crossover.
  6. Tighten the inlet hose clamp (2) at the coolant crossover.

    7. Tighten
    Tighten the inlet hose clamp to 5 N·m (44 lb in).

  7. Fill the cooling system. Refer to Cooling System Draining and Filling .

Radiator Inlet Hose Replacement LG5

Removal Procedure
  1. Remove the front wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
  2. Drain the coolant. Refer to Cooling System Draining and Filling .
  3. Remove the radiator inlet hose support clamp from the radiator fan shroud.

    4. Object Number: 199072 Size: SH
  4. Remove the radiator inlet hose (3) and the clamp (2) from the radiator (1).
  5. Remove the radiator inlet hose and the clamp from the coolant outlet.

Installation Procedure
  1. Install the radiator inlet hose and the clamp to the coolant outlet.

    2. Object Number: 199072 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the radiator inlet hose (3) and the clamp (2) to the radiator (1).

    3. Tighten
    Tighten the clamps to 5 N·m (44 lb in).

  3. Install the radiator inlet support hose clamp to the radiator fan shroud.
  4. Install the front wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
  5. Fill the cooling system. Refer to Cooling System Draining and Filling .
  6. Inspect the system for leaks.