9X-7743 9X7743 Caterpillar TORQUE CONVERTER Oil seal

9X-7743 Caterpillar TORQUE CONVERTER Oil seal OEM 9X7743 Fits 950B 966F 972G Loader Torque Converter Product Information Brand: Caterpillar Category: Seals & Gaskets Part Number: 9X-7743 Part Name: Single Lip Rubber Seal (DBI Type) Alternative OEM: 9X7743 / CA9X7743 Engine Model: Caterpillar 3116, 3126, 3306, C7, C9 Compatible Equipment: Caterpillar 950G, 966F, 972G, 988B, 120H, 725, D300E Condition: 100% New Aftermarket Replacement 9X-7743 9X7743 Caterpillar TORQUE CONVERTER Oil seal (2) 9X-7743 Caterpillar Oil seal Product Function & Specs: Heavy-duty single lip Fluoro-rubber (FKM/Viton) seal designed to fit 98.45mm housing bores. Engineered specifically for high-heat, high-RPM environments like torque converters and transmission input shafts. Delivers a tight dynamic seal to keep oil in and prevent dirt, grit, or moisture from invading the drive system. Failure Symptoms: Oil weeping or active puddling beneath the torque converter housing or transmission joint. Drop in transmission fluid levels coupled with slipping clutches or overheating. Rubber lip gets hard, cracked, or brittle due to heat aging and loses seating pressure. Quick Installation Notes: Clean the bore and shaft surfaces thoroughly; ensure there are no burrs or sharp edges. Coat the outer diameter and the sealing lip with clean transmission oil before driving it in. Use a proper seal driver tool to press it straight and flat into the 98.45mm bore. Avoid cocking the seal during installation to prevent uneven wear and early failure. FAQ: Q: Can this part replace OEM 9X-7743? A: Yes, 100% interchangeable. The elastomer compound, steel case reinforcing, and lip tension match Cat specifications exactly. Q: Is this an OEM or aftermarket replacement? A: This is a premium aftermarket lip seal built with high-grade fluoro-rubber to handle demanding industrial heat and pressure. Equal service life, lower cost. Q: What equipment does this fit? A: Widely used on Cat wheel loaders (950, 962, 966, 972, 988 series), articulated haulers (725, 730, D300E), and D5H dozers. Share your machine’s Serial Number (PIN) to let us verify fitment. Q: How do I store these seals to prevent dry rot? A: Keep them sealed in their bags in a cool, dark place. Keep them away from ozone sources or direct UV light to protect the rubber structure. Q: Do you offer discounts for wholesale orders? A: Yes. We supply parts shops, fleet repair facilities, and distributors worldwide. Contact us directly for bulk rates and fast shipping options. Why Sourcing From WinsParts? We match your part numbers directly against official parts catalogs to ensure a 100% correct fit. Our large physical inventory allows us to ship orders fast, minimizing your machine downtime with dependable parts.