CTP Engine Bearings
CTP Copper/Lead bearings are made of a sintered trimetal with a base alloy copper, lead and tin with a nickel dam and Babbitt top layer. The F780 alloy has a higher load carrying capacity than aluminum or other copper/lead alloy. As a result of this advance technology material, F780 will provide longer life in normal operation and significantly improved fatigue resistance under extreme operating conditions. We also have available engine bearings made of aluminum, alloy, and other materials.

High Performance
Copper/Lead Bearings

Part No. Main Bearing Size (In) Engine Model Part No.
Con. Rod Bearing
5I7588 Standard 3066 5I7637
5I7784 0.01 3066 5I7794
5I7785 0.02 3066 5I7795
5I7786 0.03 3066 5I7796
4W8093 Standard 3204 8N6308
8N8976 0.01 3204 1N3821
8N8972 0.02 3204 1N3822
8N8972-030* 0.03 3204 1N3822-030*
8N8972-040* 0.04 3204 1N3822-040*
8N8974 0.05 3204 1W3906
4W8092 Standard 3204 8N6308
8N9020 0.05 3204 1W3906
8N9022 0.01 3204 1N3821

CTP Engine Bearings

Part No. Main Bearing Size (In) Engine Model Part No.
Con. Rod Bearing
8N9023 0.02 3204 1N3822
8N9023-030 0.03 3204 1N3822-030*
8N9023-040 0.04 3204 1N3822-040*
8N8973 Standard 3204 8N6308
8N8971 0.02 3204 1N3822
8N8975 0.05 3204 1W3906
1W0312 Standard 3204 8N6308
1W1661 0.01 3204 1N3821
1W1662 0.02 3204 1N3822
1W1663 0.05 3204 1W3905
3285572 Standard 3306 8N1721
4W5738 Standard 3306 8N8220
8N8225 0.01 3306 8N8221
8N8226 0.02 3306 8N8222
8N8227 0.03 3306 8N8223
8N8227-040* 0.04 3306 8N8223-040*
8N8227-050* 0.05 3306 8N8223-050*
8N8227-060* 0.06 3306 8N8223-060*
8N8228 Standard 3306 8N8220
8N8229 0.01 3306 8N8221
1011530 Standard 3114, 3116, 3126 2246638
1450163 0.01 3114, 3116, 3127 7C6976
1450165 0.02 3114, 3116, 3128 7C6977
7C6973 0.03 3114, 3116, 3129 N/A
1077708 Standard 3114, 3116, 3130 2246638
1450162 0.01 3114, 3116, 3131 7C6976
1450164 0.02 3114, 3116, 3132 7C6977
7C6963 0.03 3114, 3116, 3133 N/A
4W8092 Standard 3145, 3150, 3160, 3208 9N5923
8N9022 0.01 3145, 3150, 3160, 3208 9N5924
8N9023 0.02 3145, 3150, 3160, 3208 9N5925
8N9023-030 0.03 3145, 3150, 3160, 3208 9N5925-030*
8N9023-040 0.04 3145, 3150, 3160, 3208 9N5925-040*
8N9020 0.05 3145, 3150, 3160, 3208 9N5926
4W8093 Standard 3208 Late 7E7894

CTP Engine Bearings

Part No. Main Bearing Size (In) Engine Model Part No.
Con. Rod Bearing
8N8972 0.02 3208 Late 9N5921
8N8972-030* 0.03 3208 Late 9N5921-030*
8N8972-040* 0.04 3208 Late 9N5921-040*
8N8974 0.05 3208 Late 9N5922
8N8976 0.01 3208 Late 9N5920
4W8092 Standard 3208 Late 7E7894
8N9022 0.01 3208 Late 9N5920
8N9023 0.02 3208 Late 9N5921
8N9023-030* 0.03 3208 Late 9N5921-030*
8N9023-040* 0.04 3208 Late 9N5921-040*
8N9020 0.05 3208 Late 9N5922
4W8091 Standard 3208, 3160 9N5923
8N9065 0.01 3208, 3160 9N5924
8N9064 0.02 3208, 3160 9N5925
4W8091-030 0.03 3208, 3160 9N5925-030*
4W8091-040 0.04 3208, 3160 9N5925-040*
2170390 Standard 3406/B, 3408/B, 3412/B 9Y9497
4W5492-010* 0.01 3406/B, 3408/B, 3412/B 9Y9497-010*
4W5492-020* 0.02 3406/B, 3408/B, 3412/B 9Y9497-020*
4W5698 0.025 3406/B, 3408/B, 3412/B 4W5702
4W5698-030 0.03 3406/B, 3408/B, 3412/B 4W5702
4W5698-040 0.04 3406/B, 3408/B, 3412/B 4W5702
4W5699 0.05 3406/B, 3408/B, 3412/B 4W5703
2170390 Standard 3406C, 3406E 9Y7735
4W5492-010* 0.01 3406C, 3406E 9Y7735-010*
4W5698 0.025 3406C, 3406E 7E0558
4W5698-030 0.03 3406C, 3406E N/A
4W5698-040 0.04 3406C, 3406E N/A
4W5699 0.05 3406C, 3406E 7E0559
4W5700 Standard 3408, 3408B, 3412 9Y9497
4W5701 0.01 3408, 3408B, 3412 4W5702
1496031 Standard 3508, 3508B, 3512, 3512B 1077331
1496032 0.025 3508, 3508B, 3512, 3512B 1077332
1496033 0.05 3508, 3508B, 3512, 3512B 1077333
2110587 Standard C10 2170577

CTP Engine Bearings

Part No. Main Bearing Size (In) Engine Model Part No.
Con. Rod Bearing
1280400 0.51 C10 1280390
1280401 0.76 C10 1280391
2110588 Standard C11, C12, C13 1161089
1280382 0.51 C11, C12, C13 1280395
1280383 0.76 C11, C12, C13 1280396
1512939 Standard C9 2133190/1608194
1N4316 Standard D353, G353D 1N4336
1N4319 0.025 D353, G353D 1N4337
1N4322 0.05 D353, G353D 1N4338
8N7764 Standard D379, G379 8N7769
8N7765 0.025 D379, G379 8N7770
8N7766 0.05 D379, G379 8N7771
7W2138 Standard Tractors 619C 7W2136
8N5346 0.01 Tractors 619C 8N5339
8N5347 0.05 Tractors 619C 8N5338
8N7923 Standard Tractors D7E 8N7933
8N7923-010 0.01 Tractors D7E 8N7933-010*
8N7923-020 0.02 Tractors D7E 8N7933-020*
8N7923-030 0.03 Tractors D7E 8N7933-030*
8N7923-040 0.04 Tractors D7E 8N7933-040*
8N7924 0.025 Tractors D7E 8N7934
8N7925 0.05 Tractors D7E 8N7935

* Special Oversizes in Stock. Please use part number as described (-followed by size)
The sizes shown on this reference chart are given in inches. There is a gradual change in the industry to the use of millimeters instead of inches for size identification marks on engine main and connecting rod bearings. The chart shows a comparison of millimeter to inch dimensions for different sizes of bearings.

Inches Millimeters
0.005 0.130
0.010 0.250
0.020 0.500
0.025 0.640
0.030 0.750
0.050 1.270

Conversion Factors: To change millimeters to inches, multiply millimeters by .03937.
To change inches to millimeters, multiply inches by 25.4