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900194 REV B 09/16/19, PG 27 OF 42
Photo 2
Photo 3
Passenger Side Plenum Assembly
Louver Bezel Installation
1.
2.
3.
Locate the passenger side plenum assembly louver bezel and the (3) louvers without hose adapters (See
Photo 1, below).
Install the (2) 10-32 x 1 ¼” hex machine screws, (2) 10-32 nuts with star washers, and (4) #8 flat washers
approximately 3/4” into the passenger side plenum assembly louver bezel and into the OEM holes under the
dash (See Photos 2, 3 & 4, below, and Figure 1, Page 28). NOTE: Do not fully tighten the nuts at this
time.
Look at the plenum assembly through the glovebox opening, and ensure that the S-clip on the dash inlet of
the plenum assembly is installed onto the evaporator unit dash outlet. If not, you may need to lightly push
the evaporator unit toward the firewall and push up on the plenum assembly to properly install the dash inlet
(See Photos 5 & 6, below, and Figure 1, Page 28).
Photo 1
Photo 4
Passenger Side Plenum
Assembly Louver Bezel
491659
Louvers Without
Hose Adapters
490523
(2) 10-32 x 1¼” Hex Machine Screws
Plenum Assembly
Dash Inlet
Thread 10-32 Nut with Star Washer
Approximately 3/4” onto Screw
Toward Driver Side
Passenger Side
Photo 5
Photo 6
OEM Hole Under Dash
OEM Hole Under Dash
Passenger Side Plenum
Assembly Louver Bezel
491659
Evaporator Unit
Dash Outlet
Thread 10-32 Nut with Star Washer
Approximately 3/4” onto Screw
Ensure S-clip on Plenum Assembly Dash
Inlet is Installed on Evaporator Dash Outlet