
2586326
2848675
2586345
3-3
Engine Tools
Air Induction
Air Induction
FT1984 Pressurizing Group
Model: 3176, 3208, 3304B, 3306B, 3406B
Warranty: None
• Used to test air-to-air aftercoolers on 3306B and 3406B Truck Engines
• Aids in detecting defects in air-to-air aftercoolers
• Includes complete parts description and parts sourcing information
Reference
SEHS8622, Special Instruction
367-7435, 378-4525, 378-4526
Aftercooler Testing Plugs
Model: All C9.3 through C18 Tier 4 Engines
Warranty: Six Months
• Used to seal aftercoolers in order to apply pressurization for performing an
under water leak check to determine reusability of the aftercooler
ExpandablePlugChart-Specications
Part Number 367-7435 378-4525 378-4526
Size 2 x 1 5/16 in 1 3/8 x 1 5/16 in 2 x 1 5/16 in
Rubber Dia. 49 mm (1.93 in) 33.5 mm (1.32 in) 49 mm (1.93 in)
Body Length 28.7 mm (1.13 in) 33.3 mm (1.31 in) 28.7 mm (1.13 in)
Flange Dia. 62 mm (2.44 in) 44.5 mm (1.75 in) 62 mm (2.44 in)
Top Plate Dia. 65 mm (2.56 in) 47.8 mm (1.88 in) 65 mm (2.56 in)
Height 37.3 mm (1.47 in) 33.3 mm (1.31 in) 37.3 mm (1.47 in)
Weight .181 kg (.4 lb) .181 kg (.4 lb) .181 kg (.4 lb)
Part Number Description
378-4525 Aftercooler Testing Plug
378-4526 Aftercooler Testing Plug
367-7435 Aftercooler Testing Plug
321-6022 Pressurizer Assembly
Essential Tool
Model: 793F, 795F, and 797F Off-Highway Truck
Warranty: Six Months
• Used to seal air induction system to test for air leaks temporarily — replaces
primaryandsecondaryairlters
• Used with shop air supply and dealer supplied 0 to 70 kPa (0 to 10 psi) pressure
gauge
• Requires one pressurizer tool for each air cleaner (797F Off-Highway Truck
requiresvetools)
• Eachtoolfeaturesaquick-disconnectairttingandapresetpressurerelief
valve
• 9H-5548O-ringSealisservicedseparately
Part Number Description
321-6022 Pressurizer Assembly