What does the 0.25mm undersize mean for these bearings?

The 0.25mm undersize indicates that these bearings are slightly smaller than standard size. This is necessary when the crankshaft journals have been machined down by 0.25mm during an engine rebuild to remove wear or damage. Using the correct undersize bearing ensures the proper oil clearance and fit on the reconditioned journal.

What is the advantage of a bimetal bearing construction?

Bimetal bearings, like these with an aluminum base, are known for their good heat dissipation and wear resistance. This construction helps the bearing withstand the high temperatures and pressures generated during engine operation, contributing to longer bearing life.

Do these bearings come with installation instructions?

While specific installation instructions are not included with the bearings themselves, it is critical to refer to the manufacturer's official service manual for your Saab model. This will detail the correct torque specifications, oil clearance measurements, and proper installation procedures.

King Engine Bearings Saab B20/B20E/B202/Bz20 (Size +0.25mm) Connecting Rod Bearing Set

Specifications

Brand: King Engine Bearings
Part #: CR4003AM0.25
UPC: 611500122514

King Engine Bearings Saab B20/B20E/B202/Bz20 (Size +0.25mm) Connecting Rod Bearing Set

Name: King Engine Bearings Saab B20/B20E/B202/Bz20 (Size +0.25mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
Price: 64.23 USD
Availability: InStock

$64.23

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Fits 1972-1980 Saab 99. King Engine Bearings connecting rod bearing set, 0.25mm undersize, for B20 engines. Essential for engine rebuilds.

Key Features

Fits 1972-1980 Saab 99 and 1979-1980 Saab 900 with B20, B20E, B202, or Bz20 engines.
Connecting rod bearing set sized 0.25mm undersize for use on reconditioned crankshaft journals.
Constructed with a bimetal (aluminum base) design for effective heat management and wear resistance.
Essential component for engine rebuilds and repairs, ensuring proper crankshaft rotation and oil pressure.

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Fits these vehicles

Saab 900 1979-1980
Saab 99 1972-1980

Product Details

If you're rebuilding the engine in your 1972-1980 Saab 99, especially one with a B20, B20E, B202, or Bz20 engine, new connecting rod bearings are a critical part of the job. These bearings sit between the connecting rod and the crankshaft, allowing the rod to spin smoothly while handling significant forces. Worn bearings can lead to excessive play, oil pressure loss, and eventually, catastrophic engine failure.

This set from King Engine Bearings is built with a bimetal construction, meaning it has an aluminum base. This design helps manage heat and wear effectively. Importantly, these bearings are sized at 0.25mm undersize, which is crucial if your crankshaft journals have been machined down during an engine rebuild to clean up any damage or wear. Using the correct undersize bearing ensures a proper fit and optimal oil clearance on a reconditioned crankshaft.

When you're putting an engine back together, attention to detail matters. King Engine Bearings are a well-known name in engine components, and this set is made to fit your Saab's specific engine configuration. Make sure to follow the manufacturer's installation instructions carefully, paying close attention to oil clearance and torque specifications for a successful rebuild.