
| ENGINE BEARINGS | ||
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CON ROD BEARING SET |
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| Part# | ||
| 4B1925H |
4B1925HX |
|
| 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 |
1.7707in / 44.976mm |
|
| Max Std Shaft Size |
1.7717in / 45mm |
|
| Min Std Tunnel Size |
1.8898in / 48mm |
|
| Max Std Tunnel Size |
1.8898in / 48mm |
|
| Max Wall at Crown |
0.0591in / 1.502mm |
0.0586in /1.489mm |
| Max Overall Length |
0.6890in / 17.5mm |
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| Notes | ||
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Diagram |
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Part number starting with 338 |
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Athena advantages |
|
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Optimized radius embossing shape |
The round shape of the embossing increases sealing on cylinder bore, oil and cooling water passages and improves spring back strength |
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Advanced stopper technology |
State of the technology enhances sealing pressure around the cylinder. Highest sealing properties in high power engines |
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Coating technology |
Designed & engineered by Athena the special coating applied on steel surfaces, improves temperature resistance & reliability of the head gasket |

Length: 1784mm
Width: 27mm
Number of tooth: 223
Gates' timing belts offer a precision fit with easy installation and no interference engine damage - exactly what you've come to expect from the worldwide leader in timing belts.
- Tensile cord reinforced with premium, high-strength glass cords.
- Gripping teeth with aramid fiber technology and high saturation HNBR elastomeric composites for exceptional durability and heat resistance.
- Wear-resistant tooth jacket supported by reinforced nylon fabric and double-tooth stability.
The superior construction of Gates timing belts makes them 300 percent stronger than the standard aftermarket belt while providing up to three times the heat resistance.



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Product detailed specification |
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|
Bore size |
86.50mm |
|
Stroke |
91.00mm |
|
JE Pistons compression ratio (CR) |
11.5:1 |
|
OEM compression ratio (CR) |
11.3:1 |
|
Dome volume (CC) |
-9.60cm3 |
|
Compression height (CH) |
32.30mm |
|
Pin diameter |
21mm |
|
Features |
Accepts Turbo and Nitrous; FSR series skirt |
|
Fits for |
BMW M3 E36 - 3.2 (S50B32) |


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|||||||||||||
| Quantity | 1 | 6 | ||||||||||||
| Crankshaft | 59.990 / 59.972 | 59.990 / 59.972 | ||||||||||||
| Housing | 65.001 / 65.019 | 65.001 / 65.019 | ||||||||||||
| Max Wall | 2.494 | 2.494 | ||||||||||||
| Max Length | 24.940 | 19.901 |

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|||||||
| Quantity | 4 | ||||||
| Crankshaft | 48.019 / 48.001 | ||||||
| Housing | 51.587 / 51.600 | ||||||
| Max Wall | 1.775 | ||||||
| Max Length | 20.470 |