
Upper |
Lower |
Quantity |
Position |
Crankshaft |
Housing |
Max Length |
Max Wall |
|---|---|---|---|---|---|---|---|
AM ![]() |
5 | 45.96 / 45.94 | 49.01 / 49.00 | 19.0 | 1.502 |

|
|||||||
| Quantity | 4 | ||||||
| Crankshaft | 44.999 / 44.976 | ||||||
| Housing | 48.001 / 48.024 | ||||||
| Max Wall | 1.504 | ||||||
| Max Length | 19.401 |

| Pairs & PN |
|
|
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Quantity |
5 | 1 | ||||||||||||
| Crankshaft |
59.969 / 59.982 | 59.969 / 59.982 | ||||||||||||
| Housing |
0.000 / 65.034 | 0.000 / 65.034 | ||||||||||||
| Max Wall |
2.497 | 2.497 | ||||||||||||
| Max Length |
21.699 | 27.541 |

| Sizes | STD, .025, .25 |
| Oil Clearance | |
| Half Type | |
| Material | |
| Min. Std Shaft Size | 42,971 |
| Max. Std Shaft Size | 42,987 |
| Min. Std Tunnel Size | 46,000 |
| Max. Std Tunnel Size | 46,013 |
| Max Wall at Crown | 1.495 |
| Max Overall Length | 16.63 |
| Weight | 0.12 |
| Notes |

| 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 |

| ENGINE BEARINGS | ||||
![]() |
CON ROD BEARING SET |
MAIN BEARING SET |
||
| Part# | Part# | |||
| 4B2904H |
4B2904HX |
5M2908H |
5M2908HX |
|
| Sizes | STD, .025, .25 | STD | STD, .025, .25 | STD |
| Oil Clearance | Standard | + 0.001" Extra | Standard | + 0.001" Extra |
| Half Type | Identical Halves | Upper & Lower | ||
| Material |
Tri-metal Hardened steel backs |
Tri-Metal | ||
| Min Std Shaft Size |
1.9995in / 50.787 mm |
2.0862 in / 52.991 mm |
||
| Max Std Shaft Size |
2.0003in / 50.807 mm |
2.0866 in / 53.000 mm |
||
| Min Std Tunnel Size |
2.1219 in / 53.897 mm |
2.2330 in / 56.717 mm |
||
| Max Std Tunnel Size |
2.1226 in / 53.913 mm |
2.2337 in / 56.735 mm |
||
| Max Wall at Crown |
0.0605in / 1.536 mm |
0.0600in / 1.523 mm |
0.0726 in / 1.843 mm |
0.0720 in / 1.830 mm |
| Max Overall Length |
0.768 in / 19.50 mm |
0.817 in / 20.75 mm (2908H/HX) 0.955 in / 24.25 mm (2909H/HX) |
||
| Notes | - | - | ||
|
Diagram |
![]() |
2908H & HX - Positions 1,2,4,5
2909H & HX - Position 3
|
||
| THRUSTWASHER SET | ||||
| Part# | Material | |||
| Sizes | Notes | - | ||

| Position | |||||||
|---|---|---|---|---|---|---|---|
| Pairs & PN |
|
||||||
| Quantity | 4 | ||||||
| Crankshaft | 47.813 / 47.833 | ||||||
| Housing | 51.331 / 51.346 | ||||||
| Max Wall | 1.730 | ||||||
| Max Length | 20.599 | ||||||
| FL O/S |