84.5mm Bore, 8.5:1 Compression Ratio
84.5mm Bore, 8.5:1 Compression Ratio
A12x17-CU
8.5:1 Compression Ratio, Standard 84mm Bore
Proper lubrication of metal mating surfaces is essential prior to starting a new or rebuilt engine.
Street Camshaft Setup
Bolt required to properly torque the head to the block
Removes metal particles suspended in your engine oil
Serious engine oil cooling for the most demanding engines
For custom applications only. Not a direct bolt on.
Aggressive Street and Track Camshaft Setup
For Vehicles Equipped With Bosch Monotronik Only
Upgrade your Rod Bearings to a performance oriented option!
This product was last offered at the strikethrough price on
05-21-2026
Make sure you have the essential tools for a German vehicle, like these triple square drivers.
Broken rocker arms are a real concern. Replace your broken arm or preventatively replace all of them.
2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
This product was last offered at the strikethrough price on
05-07-2026
Includes crush washer
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
05-02-2026
Found in the engine block.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
06-05-2026
Used to seal the dipstick tube to the oil pan
Genuine BMW lower crankshaft bearing.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-28-2026