The Caterpillar 114-5639 Guard AS 1145639, a genuine OEM guard assembly designed for the powerful D10R Track-Type Tractor (3KR). Engineered to meet Caterpillar’s exact specifications, this heavy-duty guard offers superior protection against debris, impact, and wear, helping extend the service life of your machine’s internal systems. Built for long-term durability and ease of installation, the 114-5639 Guard AS is an essential replacement part for mining, construction, and earthmoving operations. For added compatibility and flexibility in maintenance planning, it is also fully interchangeable with part number 1145638, making it a reliable solution for equipment upkeep and repair.