



| NGINE BEARINGS | ||
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CON ROD BEARING SET |
|
| Part# | ||
| 4B1906H |
4B1906HX |
|
| 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 |
1.7707in / 44.976mm |
|
| Max Std Shaft Size |
1.7717in / 45.000mm |
|
| Min Std Tunnel Size |
1.8898in / 48.000mm |
|
| Max Std Tunnel Size |
1.8907in / 48.024mm |
|
| Max Wall at Crown |
0.0591in / 1.502mm |
0.0586in / 1.489mm |
| Max Overall Length |
0.6102in / 15.50mm |
|
| Notes | ||
|
Diagram |
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|

| ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
| Part# | ||
| 4B1972H |
4B1972HX |
|
| 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 |
1.889in / 47.98mm |
|
| Max Std Shaft Size |
1.8898in / 48mm |
|
| Min Std Tunnel Size |
2.008in / 51.004mm |
|
| Max Std Tunnel Size |
2.0088in / 51.024mm |
|
| Max Wall at Crown |
0.0591in / 1.5mm |
0.0585in / 1.487mm |
| Max Overall Length |
0.6063in / 15.40mm |
|
| Notes | ||
|
Diagram |
![]() |
|

| Sizes | STD, .025, .25, .50 |
| Oil Clearance | Standard |
| Half Type | Identical Halves |
| Material | Tri-metal Hardened steel backs |
| Min. Std Shaft Size | 1.7707in / 44.976mm |
| Max. Std Shaft Size | 1.7717in / 45.000mm |
| Min. Std Tunnel Size | 1.8898in / 48.000mm |
| Max. Std Tunnel Size | 1.8907in / 48.024mm |
| Max Wall at Crown | 0.0591in / 1.502mm |
| Max Overall Length | 0.6102in / 15.50mm |
| Weight | 0.12 |
| Notes | 0 |

| Sizes | STD, .025, .25 |
| Oil Clearance | Standard |
| Half Type | Identical Halves |
| Material | Tri-metal Hardened steel backs |
| Min. Std Shaft Size | 1.889in / 47.98mm |
| Max. Std Shaft Size | 1.8898in / 48mm |
| Min. Std Tunnel Size | 2.008in / 51.004mm |
| Max. Std Tunnel Size | 2.0088in / 51.024mm |
| Max Wall at Crown | 0.0591in / 1.5mm |
| Max Overall Length | 0.6063in / 15.40mm |
| Weight | 0.12 |
| Notes | 0 |

| Sizes | STD, .025, .25 |
| Oil Clearance | Standard |
| Half Type | Identical Halves |
| Material | Tri-metal Hardened steel backs |
| Min. Std Shaft Size | 1.889in / 47.98mm |
| Max. Std Shaft Size | 1.8898in / 48mm |
| Min. Std Tunnel Size | 2.008in / 51.004mm |
| Max. Std Tunnel Size | 2.0088in / 51.024mm |
| Max Wall at Crown | 0.0591in / 1.5mm |
| Max Overall Length | 0.6063in / 15.40mm |
| Weight | 0.12 |
| Notes | 0 |

|
|||||||
| Quantity | 4 | ||||||
| Crankshaft | 48.001 / 47.981 | ||||||
| Housing | 51.003 / 51.024 | ||||||
| Max Wall | 1.501 | ||||||
| Max Length | 15.400 |

|
|||||||
| Quantity | 5 | ||||||
| Crankshaft | 55.001 / 54.981 | ||||||
| Housing | 58.999 / 59.019 | ||||||
| Max Wall | 2.002 | ||||||
| Max Length | 20.000 |