ENGINE AR-COMPLETE 2888156 - Caterpillar

Table 1
DEF Manifold Header DEF Sock Filter Severe Service DEF Sock
434-3241 453-1604 495-1028
434-3242 453-1605 495-1029
434-3243 453-1606 495-1030
Illustration 1 g06069794
Remove existing DEF manifold header per the Manifold (DEF Heater) - Remove and Install procedure in SIS. Remove the existing sock and the 452-6055 Filter Base As. Replace the bottom 425-0385 Filter As on the header. Rinse the header and the filter base with deionized water until there are no visible debris on the coils. Install the 452-6055 Sock Filter Base As. Tighten the base screws to 1.5 0.1 N m (13 0.8 lb in).
Illustration 2 g06069799
Insert the extended sock all the way up to the top of the DEF manifold header.
Illustration 3 g06069844
Install the 391-5262 Gasket.
Illustration 4 g06069849
Illustration 5 g06069857
Gently pull on each "ear" so the gasket goes past the folded sock area and the gasket is able to sit flush with the DEF manifold header. Repeat the process for all the ears. The gasket ears will push into the sock material and this is normal.
Illustration 6 g06069873
Insert the assembled DEF manifold header with new sock and gasket into the tank. Use the Manifold (DEF Heater) - Remove and Install instructions for installing the DEF header. The torque procedure is required on the mounting bolts.