Secure Your Power with the Professional Billet Aluminum Battery Tray for Optima 34 Series. Whether you are hitting the rough trails in your Jeep or racing on the track, your battery needs to stay put. Our premium CNC-machined billet aluminum battery tray (P/N 551181) is the ultimate solution for holding your Optima battery securely under the most extreme conditions. Far superior to cheap plastic or stamped steel trays, this aluminum unit offers unmatched strength and a show-quality finish. Why Upgrade to This Billet Tray? Perfectly fits Optima BlueTop (34M, D34M), RedTop (34, 34/78), and YellowTop (D34, D34/78). The “Hold Down” design ensures zero battery movement during aggressive driving or off-road maneuvers. Machined from a solid block of 6061-T6 aluminum for a perfect fit and long-lasting durability. The overall dimensions accommodate standard heights, and the bolt system can be adjusted for a snug fit. Unlike steel trays that rust from battery acid or moisture, this aluminum tray stays clean and professional forever. 11.25″ x 8.5″. Note: This bracket is compatible with all applications utilizing Optima Series 34 batteries.