
| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 7M1532H |
7M1532HX |
|
| Sizes | STD, .025, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material | Tri-metal | |
| Min Std Shaft Size | 2.3611in / 59.971mm | |
| Max Std Shaft Size | 2.3618in / 59.990mm | |
| Min Std Tunnel Size | 2.5591in / 65.000mm | |
| Max Std Tunnel Size | 2.5598in / 65.019mm | |
| Max Wall at Crown | 0.0980in / 2.490mm | 0.0930in / 2.478mm |
| Max Overall Length |
0.787in / 20.00mm #1,2,3,4,5,7 0.982in / 24.94mm #6 thrust |
|
| Notes | ||
|
Diagram |
|
|

| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 5M1237H |
5M1237HX |
|
| Sizes | STD, .025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material | Tri-Metal | |
| Min Std Shaft Size |
2.0462 in / 51.973 mm |
|
| Max Std Shaft Size |
2.0467 in / 51.985 mm |
|
| Min Std Tunnel Size |
2.2047 in / 56.000 mm |
|
| Max Std Tunnel Size |
2.2054 in / 56.018 mm |
|
| Max Wall at Crown |
0.0786 in / 1.996 mm |
0.0781 in / 1.983 mm |
| Max Overall Length |
0.709 in / 18.00 mm |
|
| Notes | - | |
|
Diagram |
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|

Part number: 1T7807-STD
Manufacturer: ACL BEARING COMPANY
F1N, F2N, F2R, F3N, F3P, F3R, F7P, F7R, F8M, F8Q engines

| ENGINE BEARINGS | ||
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CON ROD BEARING SET |
|
| Part# | ||
| 4B1185H |
4B1185HX |
|
| Sizes | STD,.025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.7709in / 44.981mm |
|
| Max Std Shaft Size |
1.7715in / 44.996mm |
|
| Min Std Tunnel Size | 1.8897in / 47.998mm | |
| Max Std Tunnel Size |
1.8905in / 48.019mm |
|
| Max Wall at Crown |
0.0586in / 1.488mm |
0.0581in / 1.475mm |
| Max Overall Length |
0.8307in / 21.10mm |
|
| Notes | ||
|
Diagram |
![]() |
|

| ENGINE BEARINGS | ||
![]() |
MAIN BEARING SET |
|
| Part# | ||
| 5M1538H |
5M1538HX |
|
| Sizes | STD, .025, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Upper & Lower | |
| Material | Tri-metal | |
| Min Std Shaft Size | 2.3611in / 59.971mm | |
| Max Std Shaft Size | 2.3618in / 59.990mm | |
| Min Std Tunnel Size | 2.5591in / 65.000mm | |
| Max Std Tunnel Size | 2.5598in / 65.019mm | |
| Max Wall at Crown | 0.0980in / 2.490mm | 0.0930in / 2.478mm |
| Max Overall Length |
0.787in / 20.00mm #1,2,4,5 0.982in / 24.94mm #3 thrust |
|
| Notes | ||
|
Diagram |
|
|

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1568H |
4B1568HX |
|
| Sizes | STD, .025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.8888in / 47.975mm |
|
| Max Std Shaft Size |
1.8894in / 47.9911mm |
|
| Min Std Tunnel Size |
2.0472in / 52.000mm |
|
| Max Std Tunnel Size |
2.0478in / 52.015mm |
|
| Max Wall at Crown |
0.0785in / 1.993mm |
0.0780in / 1.980mm |
| Max Overall Length |
0.787in / 20.00mm |
|
| Notes | .. | |
|
Diagram |
![]() |
|

| Sizes | STD, .025, .25 |
| Oil Clearance | Standard |
| Half Type | Identical halves |
| Material | Tri-metal Hardened steel backs |
| Min. Std Shaft Size | 2.0465in / 51.981mm |
| Max. Std Shaft Size | 2.0472in / 52mm |
| Min. Std Tunnel Size | 2.1663in / 55.024mm |
| Max. Std Tunnel Size | 2.167in / 55.042mm |
| Max Wall at Crown | 0.0593in / 1.506mm |
| Max Overall Length | 0.7598in / 19.3mm |
| Weight | 0.253 |
| Notes | 0 |

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1606H |
4B1606HX |
|
| Sizes | STD, .025, .25, .50 | STD |
| Oil Clearance | Standard | + 0.001" Extra |
| Half Type | Identical Halves | |
| Material |
Tri-metal Hardened steel backs |
|
| Min Std Shaft Size |
1.8802" /47.758mm |
|
| Max Std Shaft Size |
1.8810" /47.778mm |
|
| Min Std Tunnel Size |
1.9921" /50.600mm |
|
| Max Std Tunnel Size |
1.9929" /50.619mm |
|
| Max Wall at Crown |
0.0553" / 1.405mm |
0.0548" /1.392mm |
| Max Overall Length |
0.748" / 19.00mm |
|
| Notes | Bearing has 1.65mm oil hole at crown | |
|
Diagram |
![]() |
|


| Sizes | STD, .025, .25 |
| Oil Clearance | Standard |
| Half Type | Identical Halves |
| Material | Tri-Metal |
| Min. Std Shaft Size | 2.1646in / 54.980mm |
| Max. Std Shaft Size | 2.1654in / 55.000mm |
| Min. Std Tunnel Size | 2.3228in / 59.000mm |
| Max. Std Tunnel Size | 2.3236in / 59.020mm |
| Max Wall at Crown | 0.0790in / 2.007mm |
| Max Overall Length | 0.7874in / 20.00mm |
| Weight | 0.28 |
| Notes | 0 |