Manufacturer: ACL Bearing Company
Part number: 4B1490H-STD
For BMW - 1.6 1.8 1.9 (M40, M42, M43, M44)
ENGINE BEARINGS | ||
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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 | ||
![]() |
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 | ||
![]() |
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 |
![]() |
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 |
![]() |
Min Std Shaft Size |
1.7707in / 44.975mm |
|
Max Std Shaft Size |
1.7713in / 44.991mm |
|
Min Std Tunnel Size |
1.8898in / 48.000mm |
|
Max Std Tunnel Size |
1.8904in / 48.016mm |
|
Max Wall at Crown |
0.0588in / 1.493mm |
|
Max Overall Length |
0.709in / 18.00mm |
ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
Part# | ||
6B1490H |
6B1490HX |
|
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 / 44.975mm |
|
Max Std Shaft Size |
1.7713in / 44.991mm |
|
Min Std Tunnel Size |
1.8898in / 48.000mm |
|
Max Std Tunnel Size |
1.8904in / 48.016mm |
|
Max Wall at Crown |
0.0588in / 1.493mm |
0.0583in / 1.481mm |
Max Overall Length |
0.709in / 18.00mm |
|
Notes | ||
Diagram |
|
ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
Part# | ||
6B1490H |
6B1490HX |
|
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 / 44.975mm |
|
Max Std Shaft Size |
1.7713in / 44.991mm |
|
Min Std Tunnel Size |
1.8898in / 48.000mm |
|
Max Std Tunnel Size |
1.8904in / 48.016mm |
|
Max Wall at Crown |
0.0588in / 1.493mm |
0.0583in / 1.481mm |
Max Overall Length |
0.709in / 18.00mm |
|
Notes | ||
Diagram |
|
ENGINE BEARINGS | ||
![]() |
CON ROD BEARING SET |
|
Part# | ||
6B1490H |
6B1490HX |
|
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 / 44.975mm |
|
Max Std Shaft Size |
1.7713in / 44.991mm |
|
Min Std Tunnel Size |
1.8898in / 48.000mm |
|
Max Std Tunnel Size |
1.8904in / 48.016mm |
|
Max Wall at Crown |
0.0588in / 1.493mm |
0.0583in / 1.481mm |
Max Overall Length |
0.709in / 18.00mm |
|
Notes | ||
Diagram |
|