The John Deere RE168661 is a genuine OEM leaf spring designed for various John Deere agricultural machinery, including D-Series tractors, self-propelled sprayers (4630, 4730, 4830, 4930, 4940, R4030, R4038, R4045), and self-propelled forage harvesters (8100-9900 series). This critical suspension component provides essential support and flexibility, absorbing shocks and vibrations to maintain stable operation and extend equipment lifespan. Manufactured to John Deere's precise specifications, it ensures a perfect fit and reliable performance in demanding agricultural environments. Dimensions are approximately 95 mm in length, 51 mm in width, and 51 mm in height, with a weight of about 0.12 kg.