BOLT 8T9375 - Caterpillar

Electric Power GenerationC18 MAR GENSET (S/N: SSM1-125; SSW1-111)EngineC18 (S/N: TNA1-5224; GTB1-5107; T2R1-5434; GEX1-5214)Marine EngineC18 MARINE (S/N: JHL1-740; DTP1-467)Description Of Change: The new drain hose has a check valve to prevent oil from being pulled into the air intake system.The oil level sensor vent location moves to the oil level gauge hole, and the new drain hose attaches to the oil pan at the previous oil level sensor vent location.Adaptable To: The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.The new 153-9085 Hose As and 348-9705 Check Valve As replace the former 399-8539 Hose As.The new drain hose is adaptable to the above engines back to first production.The Closed Crankcase Ventilation (CCV) parts are listed in Table 1.
Table 1
CCV Drain Hose
Part Number Description Qty
0S-1594 Bolt 1
4L-6454 Bolt 1
5P-1075 Hard Washer 2
6V-8801 Nut 1
6V-9830 Cap As 1
8D-9671 Clip 1
122-6870 Hydraulic Hose 950 mm (37.4 inch)
124-1961 Permanent Coupling 2
164-7900 Adapter 1
214-7566 O-Ring Seal 1
273-8967 Bracket 1
348-9705 Check Valve As 1 The oil level sensor vent parts are listed in Table 2.
Table 2
Oil Level Sensor Vent
Part Number Description Qty
3P-0647 O-Ring Seal 1
5P-0739 Hose 95 mm (3.74 inch)
6V-8801 Nut 1
6V-9200 Elbow 1
8T-4896 Hard Washer 1
174-4883 Stud 1
214-7566 O-Ring Seal 1
228-7089 O-Ring Seal 1
256-0811 Adapter 1
485-8985 Clip 1
485-8986 Clip 1
514-6518 Tube As 1 CCV Drain Line Installation
Illustration 1 g06139549
(1) 8D-9671 Clip
(2) 4L-6454 Bolt
(3) 5P-1075 Hard Washer
(4) 6V-8801 Nut
(5) 273-8967 Bracket
(6) 0S-1594 Bolt
(7) 122-6870 Hydraulic Hose
(8) 124-1961 Permanent Coupling
(9) 164-7900 Adapter
(10) 348-9705 Check Valve As
(11) 214-7566 O-Ring Seal
(12) 6V-9830 Cap As
Install two couplings (8) onto hose (7).The hose can be made from the existing drain hose.
Remove the existing drain line and hardware.
Install cap (12) onto fitting attached to the oil pan.
Install adapter (9) into the oil pan.
Install check valve (10) and one O-ring (11) into adapter (9). Orient the check valve 25 degrees above horizontal.
Attach hose assembly (7) to check valve assembly (10) and the CCV canister.
Secure hose assembly (7) to the flywheel housing with one clip (1), one bolt (2), two washers (3), one nut (4), one bracket (5), and one bolt (6).Rerouting of the Oil Level Sensor Vent
Illustration 2 g06139596
(1) 256-0811 Adapter
(2) 3P-0647 O-Ring Seal
(3) 214-7566 O-Ring Seal
(4) 6V-9200 Elbow
(5) 228-7089 O-Ring Seal
(6) 514-6518 Tube As
(7) 174-4883 Stud
(8) 8T-4896 Hard Washer
(9) 6V-8801 Nut
(10) 485-8985 Clip
(11) 485-8986 Clip
(12) 5P-0739 Hose
Install adapter (1) and one O-ring into the oil level gauge port.
Install elbow (4) and one O-ring (3) onto adapter (1).
Attach tube (6) and O-ring (5) to elbow (4).
Attach hose (12) to tube (6) and the oil level sensor with the original clamps.
Secure tube (6) to the engine block with one clip (10), one clip (11), one stud (7), one washer (8), and one nut (9).