Kolbenschmidt 87800611 Engine Crankshaft Main Bearing Set
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Kolbenschmidt

Kolbenschmidt 87800611 Engine Crankshaft Main Bearing Set

Brand Kolbenschmidt 87800611
Component Number 85378611, 85379611
Quantity Unit Set
Repair stage 0,25
Fits —

Main bearing set. For crankshaft support in the cylinder block.

Repair stage 0.25. Sized for a precise service replacement.

Cross-references 11 21 1 250 147, 11 50 3 301 039 and 11 50 3 302 039 for the same application. See all 9.

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Kolbenschmidt Crankshaft Main Bearing Set 87800611

Kolbenschmidt 87800611 is an engine crankshaft main bearing set for cylinder block service, specified with a 0.25 repair stage for undersize applications. It is built around bearing component numbers 85378611 and 85379611, making it a precise choice for engine rebuild work where crankshaft support and oil clearance must be restored correctly.

Key Features

  • Engine crankshaft main bearing set for cylinder block components
  • Repair stage: 0.25
  • Component numbers: 85378611, 85379611
  • Kolbenschmidt part number 87800611
  • Cross-references OE-style part numbers used in BMW engine applications

Detailed Description

This Kolbenschmidt main bearing set is intended for engine rebuilds that require undersize crankshaft bearings at the 0.25 repair stage. The 87800611 bearing set is referenced against BMW part numbers including 11 21 1 250 147 and 11 50 3 301 039, and it is commonly searched as a BMW crankshaft main bearing set 0.25 mm, Kolbenschmidt 87800611, or engine main bearing set for BMW cylinder block repair. If you are sourcing BMW engine main bearings for a rebuild, this part number provides a direct reference point for matching the correct undersize specification.

This part cross-references BMW OE numbers 11 21 1 250 147 and 11 50 3 301 039 for the same application.

What It Is Used For

  • Restoring crankshaft support during engine rebuilds
  • Replacing worn main bearings in BMW engine service
  • Correcting bearing clearance after crankshaft machining
  • Addressing low oil pressure caused by bearing wear
  • Repairing engine noise linked to main bearing deterioration

Installation Notes and Tips

Verify crankshaft journal size, bearing housing condition, and repair stage before installation. Match the 0.25 undersize specification to the machined crankshaft and confirm all bearing shells are seated correctly during assembly. For BMW engine rebuilds, compare the original bearing markings and part references before final fitment.

Quality Assurance

Kolbenschmidt is a recognized engine component brand used in precision internal engine service. Part number 87800611 is identified by its bearing component numbers and repair-stage specification to support accurate parts matching during rebuild work.

Related reading

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
11 21 1 250 14711 50 3 301 03911 50 3 302 03911 50 3 302 439081 HS 19745 025081HL197710256133 M 0.25AEM5511 0.25MMH 629/5 0.25