Includes rings, wire locks, and 22mm wrist pins - 86.25mm bore, 9:1 CR
Includes rings, wire locks, and 22mm wrist pins - 86.25mm bore, 9:1 CR
JE, 86mm Bore, 11.50:1, Inverted Dome/Dish, 6 Cyl. Piston Kit
For 1994-1995 models with S55B30US engine
The JE Pistons BMW S50B30US 9:1 KIT is a high-performance piston set designed for the BMW 3.0L S50B30US engine. This kit offers a lower 9:1 compression ratio, ideal for forced induction applications like turbocharging or supercharging.
Standard bore replacement piston rings
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For use on stock pistons, will need 6 sets to replace all piston rings in the engine
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
08-23-2026
JE Pistons BMW S50B30 Euro Piston 86.00mm Bore 1.245in. CH -4.30 CC - Single Piston
Optimized for the 3.0L inline-six, these lightweight pistons improve combustion efficiency and throttle response.
Available through ECS Tuning, this product is perfect for drivers looking to enhance both their street and track experiences with a high-performance solution. Specs: 9:1 Compression – 86.50 mm Bore – 1.291 in. CH, -23.60 CC
Specs: 12.5:1 Compression – 86.75 mm Bore – 1.271 in. CH, -5.40 CC
JE Pistons are United States made products designed with quality and precision in mind for street and racing applications. Specs:- 9:1 Compression – 86.00 mm Bore – 1.291 in. CH, -23.60 CC
Engineered for BMW S50B30 engines and providing a substantial boost in performance. Specs: 12.5:1 Compression – 86.00 mm Bore – 1.291 in. CH, -4.70 CC
These pistons offer exceptional durability and reliability for racing and street application. Specs:11.5:1 Compression – 86.00mm Bore – 1.291 in. CH, -8.80 CC
JE Pistons offers high-performance pistons designed for racing and enthusiast applications, providing exceptional power, durability, and precision Specs: 12.5:1 Compression – 86.50 mm Bore – 1.291 in. CH, -5.00 CC
Enhance your BMW S50B30US engine’s performance with this high-compression forged piston kit by JE Pistons. Designed for serious performance enthusiasts and racers, this kit delivers improved power and combustion efficiency.
The JE Pistons for the BMW S50 engine are crafted for enthusiasts seeking increased performance and reliability.
87.00mm Bore: Larger-than-stock bore for increased displacement and power.