Description
The Detroit Diesel A4712340433 is a genuine OEM bearing cover designed for Detroit DD15 diesel engines. This precision-machined engine block plate provides a sealed enclosure for internal engine bearings, protecting them from contamination and maintaining proper lubrication. The bearing cover is essential for maintaining engine integrity during operation and is commonly replaced during major engine overhauls, bearing replacements, or when damage or wear is detected during inspection.
Signs You May Need a New Bearing Cover
- Visible cracks or damage to the existing cover
- Oil leaks originating from the bearing cover area
- Cover warping from heat or improper torquing
- Corrosion or pitting on the sealing surface
- Damaged or stripped bolt holes
- Bearing cover replacement during engine overhaul
- Contamination found during bearing inspection
- Failed gasket requiring cover removal and inspection
Specifications
| Brand | Detroit Diesel (Genuine OEM) |
|---|---|
| Part Number | A4712340433 |
| Part Type | Bearing Cover / Engine Block Plate |
| Engine Compatibility | Detroit Diesel DD15 |
| Mounting Hardware | M12 Bolts (N910105012003) |
| Condition | New OEM |
Cross References
This bearing cover replaces or is equivalent to the following part numbers:
- Detroit Diesel: A4712340433, 4712340433, DDE A4712340433
Engine Applications
This bearing cover fits the following Detroit Diesel engines:
- Detroit Diesel DD15 – 14.8L, EPA07, EPA10, GHG14, GHG17
Vehicle Applications
DD15 engines equipped with this bearing cover are found in:
- Freightliner Cascadia – 2008-2022
- Freightliner Coronado – 2013-2020
- Western Star 5700XE – 2016-2022
- Western Star 4900 – Select models with DD15
Installation Notes
- Clean all mating surfaces thoroughly before installation
- Inspect sealing surfaces for damage or warping
- Use new gaskets or seals as required
- Torque M12 mounting bolts to factory specifications
- Follow proper torque sequence to ensure even clamping pressure
- Verify no oil leaks after installation and engine warm-up
Verify your engine serial number and configuration before ordering to confirm fitment. DD15 engines have evolved through multiple EPA emission standards – some components may vary by production year.
