HOSE AS 4174279 - Caterpillar

Illustration 1 g02517156
Open the filter cover from inside the operator compartment. Loosen the two thumb screws. Open the ventilation housing.
Illustration 2 g02483319Note: Do not clean the filter elements while the filter elements are installed on the machine.
Turn latch (1) and lift the cover. Remove the fresh air filter element and clean. Note: When rips or tears are noticed in the filter element, install a new filter element. When a reduction of air circulation is noticed in the cab after cleaning the filter element, install a new filter element.
Install the fresh air element and close the latch.
Open latches (2) and lift the fresh air filter assembly out of the housing. Allow the fresh air assembly to hang from the cable (3).
Remove the fresh air filter element and clean.
Install the fresh air filter element. Install the primary filter assembly.
Close the filter housing cover. Note: Replace any filter elements that are worn or damaged.

Parts hose Caterpillar catalog:

8C3681 HOSE
120K, 120K 2, 120M, 120M 2, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 140G, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 14M, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 16H, 16H NA, 225D, 231D, 236D, 242D, 2...

5P0743 HOSE
120K, 120K 2, 120M, 12K, 12M, 140G, 140K, 140K 2, 140M, 160K, 160M, 16M, 216, 228, 236, 236B, 236D, 242B, 242D, 246D, 247, 247B, 248, 257D, 259D, 262D, 267, 267B, 268B, 272D, 272D XHP, 277D, 279D, 287...

6V8523 HOSE
1090, 1190, 1190T, 120K, 120K 2, 120M, 120M 2, 1290T, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 1390, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 14M, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 16M, 24M, 30...

1032529 HOSE
120H, 120H ES, 120H NA, 120M 2, 135H, 135H NA, 236D, 242D, 246D, 257D, 259D, 262D, 272D, 272D XHP, 277D, 279D, 2864C, 287D, 289D, 299D, 299D XHP, 303.5C, 303.5D, 303.5E, 303C CR, 303E CR, 304, 304C CR...

7Y1976 HOSE-WATER
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 303, 303.5, 303.5C, 303.5D, 303.5E, 303C CR, 303E CR, 304, 304.5, 304C CR, 304D CR, 304E, 305, 305.5, 305.5D, 305.5E, 305C CR, 305D CR, 30...

5I4396 HOSE AS
307C, 308D, 311F LRR, 312D, 314D CR, 314D LCR, 314E CR, 314E LCR, 315D L, 316E L, 318C, 318D2 L, 318E L, 319D, 319D L, 319D LN, 320 L, 320B, 320B L, 320C, 320C FM, 320C L, 320D, 320D FM, 320D FM RR, 3...

7I8252 HOSE AS
307C, 308D, 311C, 311D LRR, 311F LRR, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313D, 313D2, 313D2 LGP, 314C, 315C, 315D L, 316E L, 318C, 318E L, 319D, 319D L, 320B, 320C, 32...

5I8825 HOSE AS
307C, 308C, 311C, 311D LRR, 311F LRR, 312C, 312D, 312D L, 314C, 314D CR, 314D LCR, 314E CR, 314E LCR, 315C, 315D L, 319D L, 319D LN, 320 L, 320B, 320C, 320D, 320D FM, 320D FM RR, 320D L, 320D LN, 320D...

0875764 HOSE AS
307C, 307D, 307E, 311C, 311D LRR, 311F LRR, 312D, 312D L, 314C, 314D LCR, 314E LCR, 320B, 320C, 320C FM, 320D, 320D L, 320D2, 320D2 L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 321D LCR, 322B, 322B LN...

3916303

3916303 HOSE
349F L

3902264

3902264 HOSE AS
349F L

3902262

3902262 HOSE AS
349F L

3836413

3836413 HOSE AS
349F L

3836412

3836412 HOSE AS
349F L

4529712

4529712 HOSE
349D L