8T6443 RING-WEAR Caterpillar parts
416, 416B, 428, 428B
Rating:
Alternative (cross code) number:
CA8T6443
8T-6443
8T6443
CA8T6443
8T-6443
8T6443
Weight: 0.05 pounds 0 kg.
Information:
AXIAL WIDTH
25.15
mm
ID
0
mm
MATERIAL
Nylon
OD
76.2
mm
THICKNESS
2.5
mm
TYPE
PISTON
BACKHOE LOADER,
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$9.31
17 Nov 2018
CATERPILLAR AFTERMARKET: CATERPILLAR AFT
Caterpillar Ring-WEAR 8T6443 New
$10.25
22 Jun 2022
0.13[0.06] Pounds
US: ProperBuy
8T6443 Ring-Wear Fits Caterpillar 416B 428B
TCP Warranty
TCP Warranty
Number on catalog scheme:
7
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Information:
Probable Causes
Engine oil cooler
Power train oil cooler (if equipped)
Water-cooled turbocharger
Cylinder head gasket
Cylinder head
Cylinder blockVerify the presence of oil in the coolant with a scheduled oil sample. Verification must be made before performing the procedure.Recommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in the order of the listed test steps.
Table 1
Troubleshooting Test Steps Values Results
1. Check for leaks in the Engine Oil Cooler
Refer to Testing and Adjusting for the proper procedure.
Oil Cooler
Result: A leak is found in the engine oil cooler.
Repair: Install a new oil cooler core. Refer to the Disassembly and Assembly manual.
Flush the cooling system. Refer to the Operation and Maintenance Manual for the proper flushing procedure. Refill the cooling system with the proper coolant. Refer to the Operation and Maintenance Manual for the correct coolant and capacities.
Check the oil for coolant. If coolant is found in the oil, drain the crankcase. Refill the crankcase with the proper oil after the leak has been repaired. Refer to the Operation and Maintenance Manual for the correct oil capacities and viscosity.
Verify that the repair eliminated the problem.
Result: A leak was not found in the engine oil cooler.
Proceed to Test Step 2.
2. Check for Leaks in the Power Train Oil Cooler
Refer to Testing and Adjusting for the proper procedure.
Power Train Cooler
Result: A leak is found in the power train oil cooler.
Repair: Install a new oil cooler core. Refer to the Disassembly and Assembly manual.
Flush the cooling system. Refer to the Operation and Maintenance Manual for the proper flushing procedure. Refill the cooling system with the proper coolant. Refer to the Operation and Maintenance Manual for the correct coolant and capacities.
Check the oil for coolant. If coolant is found in the oil, drain the crankcase. Refill the oil after the leak has been repaired. Refer to the Operation and Maintenance Manual for the correct oil capacities and viscosity.
Verify that the repair eliminated the problem.
Result: A leak was not found in the power train oil cooler.
Proceed to Test Step 3.
3. Inspect Water-Cooled Turbocharger (if equipped)
A. Remove the oil drain line from the turbo and pressurize the cooling system, Refer to Testing and Adjusting, "Cooling System - Test".
B. Check the turbocharger for coolant leakage.
Turbocharger
Result: The turbocharger is cracked.
Repair: Replace the turbocharger. Refer to the engine Disassembly and Assembly for the correct procedure.
Flush the cooling system, Refer to the Operation and Maintenance Manual for the correct procedure.
Refill the cooling system with the proper coolant. Refer to the Operation and Maintenance Manual for the correct coolant and capacities.
Check the oil for coolant. If coolant is found in the oil, drain the oil. Refill the oil after the leak has been repaired. Refer to the Operation and Maintenance Manual for the correct oil capacities.
Verify that the repair eliminated the problem.
Result: The turbocharger is not cracked.
Proceed to Test Step 4.
4. Inspect the Cylinder Head Gasket
A. Remove the cylinder head. Refer to the Disassembly and Assembly manual.
B. Check the cylinder liner projection. Refer to the Systems Operation/Testing and Adjusting manual.
C. Install a
Engine oil cooler
Power train oil cooler (if equipped)
Water-cooled turbocharger
Cylinder head gasket
Cylinder head
Cylinder blockVerify the presence of oil in the coolant with a scheduled oil sample. Verification must be made before performing the procedure.Recommended Actions
Note: The procedures have been listed in order of probability. Complete the procedures in the order of the listed test steps.
Table 1
Troubleshooting Test Steps Values Results
1. Check for leaks in the Engine Oil Cooler
Refer to Testing and Adjusting for the proper procedure.
Oil Cooler
Result: A leak is found in the engine oil cooler.
Repair: Install a new oil cooler core. Refer to the Disassembly and Assembly manual.
Flush the cooling system. Refer to the Operation and Maintenance Manual for the proper flushing procedure. Refill the cooling system with the proper coolant. Refer to the Operation and Maintenance Manual for the correct coolant and capacities.
Check the oil for coolant. If coolant is found in the oil, drain the crankcase. Refill the crankcase with the proper oil after the leak has been repaired. Refer to the Operation and Maintenance Manual for the correct oil capacities and viscosity.
Verify that the repair eliminated the problem.
Result: A leak was not found in the engine oil cooler.
Proceed to Test Step 2.
2. Check for Leaks in the Power Train Oil Cooler
Refer to Testing and Adjusting for the proper procedure.
Power Train Cooler
Result: A leak is found in the power train oil cooler.
Repair: Install a new oil cooler core. Refer to the Disassembly and Assembly manual.
Flush the cooling system. Refer to the Operation and Maintenance Manual for the proper flushing procedure. Refill the cooling system with the proper coolant. Refer to the Operation and Maintenance Manual for the correct coolant and capacities.
Check the oil for coolant. If coolant is found in the oil, drain the crankcase. Refill the oil after the leak has been repaired. Refer to the Operation and Maintenance Manual for the correct oil capacities and viscosity.
Verify that the repair eliminated the problem.
Result: A leak was not found in the power train oil cooler.
Proceed to Test Step 3.
3. Inspect Water-Cooled Turbocharger (if equipped)
A. Remove the oil drain line from the turbo and pressurize the cooling system, Refer to Testing and Adjusting, "Cooling System - Test".
B. Check the turbocharger for coolant leakage.
Turbocharger
Result: The turbocharger is cracked.
Repair: Replace the turbocharger. Refer to the engine Disassembly and Assembly for the correct procedure.
Flush the cooling system, Refer to the Operation and Maintenance Manual for the correct procedure.
Refill the cooling system with the proper coolant. Refer to the Operation and Maintenance Manual for the correct coolant and capacities.
Check the oil for coolant. If coolant is found in the oil, drain the oil. Refill the oil after the leak has been repaired. Refer to the Operation and Maintenance Manual for the correct oil capacities.
Verify that the repair eliminated the problem.
Result: The turbocharger is not cracked.
Proceed to Test Step 4.
4. Inspect the Cylinder Head Gasket
A. Remove the cylinder head. Refer to the Disassembly and Assembly manual.
B. Check the cylinder liner projection. Refer to the Systems Operation/Testing and Adjusting manual.
C. Install a
Caterpillar parts catalog:
Parts ring Caterpillar catalog:
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 330C, 330C FM, 330C L, 330C MH, 345B II, 345B II MH, 414E, 416B, 416C, 416D, 416E, 420D, 420E, 422E, 424B, 424B HD, 424D, 426B, 426C, 428C...
10 FT, 10-20B, 120G, 12G, 130G, 302.5, 302.5C, 422E, 424D, 428, 428B, 428C, 428D, 428E, 432D, 432E, 434E, 438, 438B, 438C, 438D, 442D, 442E, 444E, 5110B, 8 FT, 8-16B, AP-1000, AP-1000B, AP-1055D, AP-6...
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 14...
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 14...
153, 163, 172, 173B, 183B, 191, 416, 416C, 416D, 416E, 416F, 420D, 422E, 424D, 426, 428C, 428D, 428E, 432D, 438, 438C, 438D, 442D, 550, 550B, 560B, 570, 570B, 572G, 580, 580B, 583K, 594, 594H, 613, 62...
1090, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 30/30, 303, 303.5, 305, 305.5, 3054B, 306, 307, 307B, 307C, 308C, 322B L, 322C, 322C FM, 324D FM, 324D FM LL, 325B L, 325C FM, 325C L, 325...
30/30, 416, 426, 438, 517, 550, 550B, 560B, 570, 570B, 580, 580B, 924G, 924GZ, 924H, 924HZ, 928H, 930, 930R, D250D, D4H, D4H XL, D4HTSK II, D4HTSK III, D5M, D5N, DEUCE, IT28G, TH220B, TH330B, TH340B
10 FT, 10-20B, 426, 428, 508, 525D, 535D, 545D, 555D, 8 FT, 963, 966M, 972M, 973, 980M, 982M, D10T2, D9T
428, 436
16, 191, 225, 416, 426, 428, 572G, 583H, 594H, 631C, 641B, 914G, IT14G2
416, 428, 518, 518C, 910E, 910G, 914G, 916, 918F, 924F, 924G, 924GZ, 924H, 924HZ, 924K, 926, 926A, 928F, 928G, 928H, 928HZ, 930G, 930K, 936, 936F, 938F, 938G, 938G II, 938H, 938K, G936, IT12B, IT14F, ...
428
120G, 12G, 130G, 140G, 160G, 302.5C, 303, 303.5C, 303.5D, 303.5E, 303C CR, 303E CR, 304C CR, 304D CR, 304E, 305.5D, 305.5E, 305C CR, 305D CR, 305E, 414E, 416, 416B, 416C, 416D, 416E, 420D, 420E, 422E,...
416, 416B, 426, 426B, 428, 428B, 436, RT50
416, 416B, 426, 426B, 428, 428B, 436, RT50
349E, 349E L, 349E L HVG, 349E L VG, 349F L, 414E, 416, 416B, 416C, 416D, 416E, 416F, 420D, 420E, 420F, 422E, 422F, 424B, 424B HD, 424D, 426B, 426C, 428, 428B, 428C, 428D, 428E, 428F, 430D, 430E, 430F...
416, 416B, 416C, 416D, 420D, 424B, 424B HD, 424D, 426, 426B, 426C, 428, 428B, 428C, 428D, 430D, 432D, 436, 436C, 438C, 438D, 442D, RT50
416, 416B, 416C, 416D, 420D, 420E, 420F, 424B, 424D, 426, 426B, 426C, 428, 428B, 428C, 428D, 428E, 428F, 430D, 430E, 430F, 432D, 432E, 432F, 434E, 434F, 436, 436C, 438C, 438D, 442D, 442E, 444E, 444F, ...
416B, 416C, 416D, 420D, 424D, 426C, 428, 428B, 428C, 428D, 430D, 432D, 436C, 438B, 438C, 438D, 442D, 446, 446B, 446D, 515, 525, 525B, 525C, 535B, 535C, 545, 545C
416, 416B, 416C, 416D, 420D, 424D, 426B, 426C, 428, 428B, 428C, 430D, 436C
416, 416B, 416C, 416D, 420D, 424D, 426B, 426C, 428, 428B, 428C, 430D, 436C
120G, 120H, 120H ES, 120H NA, 12G, 12H, 12H ES, 12H NA, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H, 14H NA, 160G, 160H, 160H ES, 160H NA, 163H NA, 16G, 16H, 16H NA, 24H, 416B, 4...
0950940
RING-RETAINING
320C FM, 325B L, 325C, 325C L, 325D MH, 330B L, 330C L, 330C MH, 330D MH, 345B, 345B II MH, 345C, 345C MH, 365B, 365B II, 365C L MH, 416, 416B, 416C, 426B, 428B, 428C, 438C, 533, 543, 564, 574B, CX48-...
320C FM, 325B L, 325C, 325C L, 325D MH, 330B L, 330C L, 330C MH, 330D MH, 345B, 345B II MH, 345C, 345C MH, 365B, 365B II, 365C L MH, 416, 416B, 416C, 426B, 428B, 428C, 438C, 533, 543, 564, 574B, CX48-...
12H, 12M, 12M 2, 12M 3, 12M 3 AWD, 140H, 140H ES, 140H NA, 140M, 140M 2, 140M 3, 140M 3 AWD, 143H, 160H, 160H ES, 160H NA, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 163H, 163H NA, 414E, 416, 416B, 416C,...