| ENGINE BEARINGS | ||
| MAIN BEARING SET | ||
| Part# | ||
| 5M1644H
 
  | 
5M1644HX
 
  | 
|
| Sizes | STD, .25, .50 | STD | 
| Oil Clearance | Standard | + 0.001″ Extra | 
| Half Type | Upper & Lower | |
| Material | Tri-metal | |
| Min Std Shaft Size | 2.1243in / 53.958mm | |
| Max Std Shaft Size | 2.1251in / 53.978mm | |
| Min Std Tunnel Size | 2.3228in / 59.000mm | |
| Max Std Tunnel Size | 2.3236in / 59.019mm | |
| Max Wall at Crown | 0.0985in / 2.502mm | 0.0980in / 2.489mm | 
| Max Overall Length | 0.728in / 18.49mm | |
| Notes | Set contain 6 x 1648H and 4 x 1644H shells. Use 1648H shell in #4 position as upper and lower. | |
| 
 Diagram         | 
 
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Engines VAG group 4 cylinder engines 1.6 1.8 2.0 16-20V (KR, PL, AEB, etc.)
