CP Forged Piston Set - BMW N55B30/S55B30 3.0L (6cyl) - 84mm STD -9.7cc - Set of 6

CP-Carrillo forged piston set for the BMW N55B30 and S55B30 3.0L turbo inline-six. Standard 84.0mm bore with a -9.7cc dome volume. Fully CNC-machined forgings balanced to +/-1 gram with accumulator grooves and dual forced-pin oilers; set of 6 with wrist pins.

Specifications

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy