S55 4-Pin Crankhub by Cen-Cal Motorsport

S55 4-Pin Crankhub by Cen-Cal Motorsport – Unmatched Reliability for High-Performance S55 Engines Upgrade your S55 engine with the Cen-Cal Motorsport 4-Pin Crankhub, engineered to eliminate crankhub spinning even in heavily modified setups. Designed as a direct replacement for the stock crankhub, this premium upgrade ensures long-lasting performance and peace of mind for BMW enthusiasts pushing their vehicles to the limit. Key Features: 1. 4-Pin Design – Maximum Security Against Spinning: The innovative 4-pin configuration ensures the crankhub stays firmly in place, even under extreme loads and high horsepower setups. Ideal for stock and heavily modified S55 engines, providing superior reliability and confidence on the street or track. 2. Precision Engineering – Designed for Excellence: Designed and machined in-house using a HAAS 4-axis CNC mill for unmatched precision and fitment. Manufactured from heat-treated 4130 Chromoly, known for its exceptional strength and durability. 3.