Order Subaru Transmission Components. Purchase Subaru Transmissions & Subaru Gearbox Parts Catalog. Find Subaru Auto Transmission Components. Maintaining the transmission components of your Subaru is crucial for a smooth driving experience. Regularly check fluid levels and opt for high-quality synthetic transmission fluids to extend the life of gears and bearings. Be alert to signs of wear, such as slipping gears or delayed engagement, which signal the need for replacement parts. When shopping online, choose OEM or certified aftermarket parts to ensure compatibility and performance. For installation, clean and lubricate new components before fitting to avoid premature wear. With the right care and quality parts, your Subaru?s transmission will deliver reliable power and efficiency.