The Stainless Steel Mercury Race Cowl Base Plate is a precision-engineered laser-cut replacement component designed to fit a wide range of Mercury Marine and Mercury Racing outboard motors. It serves as a direct replacement for the now-discontinued factory cowl base plate, originally sold under OEM part numbers 822188, 8221881, 8221882, 8221883, and 822188T2.
 
These original parts, which carried a final MSRP of $363.12, are no longer available (NLA) from Mercury or Quicksilver, making this stainless steel version an essential solution for continued use and restoration of high-performance outboard engines.
 
Originally manufactured between 1980 and 2005, these cowl base plates were specifically designed for lightweight racing cowls used on several high-output Mercury Racing engines.
 
This includes the Mercury 225 Pro Max, 245 HP, 260 ROS (Reed Open Stack), 300 Drag, SST-120, SST-140, S2000, Champ, F1, and S3000 models.
 
Compatible with 2.0L, 2.4L, and 2.5L V6 Mercury outboards, this base plate ensures continued performance and durability for both recreational racers and professional powerboat applications where lightweight composite cowlings are critical.
 
In addition to supporting OEM Mercury and Mariner configurations, this replacement cowl base plate is also fully compatible with a wide range of aftermarket lightweight cowlings produced by performance fabrication specialists.
 
These include Haulin’ Nass Racing (HNR), Chris Dunn Racing (CDR), Chip Ellis Racing, Bob’s Machine Shop, Rick Hoffman at F1 Composites, and RJ West at Composite Craft, among others. Whether maintaining vintage race engines or upgrading custom racing setups, this stainless steel base plate offers compatibility, corrosion resistance, and reliability for legacy and modern Mercury outboard platforms alike.
 
Contact Mike Hill at +1-714-697-1716 or email mike@buckshotracing77.com for technical support.