YNF17483 124411-01780 rear oil seal ensures reliable crankshaft sealing for diesel engines under continuous operation.
OEM-equivalent replacement for 124411-01780 / AH3983E
Designed to seal the crankshaft rear end and prevent oil leakage
High-temperature-resistant rubber compound
Precision-molded sealing lips ensure long-term durability
Ideal for engine rebuild shops, fleet service centers, and engine parts distributors
The YNF17483 rear seal (124411-01780 / AH3983E) is engineered to provide reliable sealing performance at the crankshaft’s rear end, preventing oil leakage and ensuring stable lubrication for diesel engines. Manufactured with premium heat-resistant elastomer materials, this seal maintains its flexibility and sealing integrity under prolonged exposure to high temperatures, oil pressure, and engine vibration.
The precision-shaped sealing lip minimizes friction while maintaining tight contact with the crankshaft surface, helping extend engine life and prevent premature wear. As an OEM-equivalent replacement, YNF17483 fits accurately in the engine housing, making it suitable for routine maintenance, engine rebuilding, and fleet service operations requiring dependable sealing components.
YNF Machinery offers this seal as a cost-effective solution backed by stable quality and consistent supply, making it ideal for professional engine repair centers and aftermarket distributors.
| Parameter | Details |
|---|---|
| YNF Part Number | YNF17483 |
| OEM Numbers | 124411-01780 / AH3983E |
| Product Type | Rear Main Seal / Crankshaft Rear Oil Seal |
| Material | High-temperature elastomer rubber |
| Function | Prevents oil leakage from rear crankshaft area |
| Resistance | Heat, oil, pressure, wear, vibration |
| Installation | Press-fit into engine rear housing |
| Application | Diesel engine rear main sealing |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Piece |
| Shipping | Sea, Air, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application Area | Description |
|---|---|
| Diesel Engine Repair | Replaces worn crankshaft rear main seals |
| Engine Rebuilding | Ensures proper sealing in overhauled engines |
| Construction Machinery Engines | Prevents oil leakage under heavy load |
| Aftermarket Parts Distribution | Suitable for engine parts wholesalers |
Related Products:
Front Crankshaft Oil Seals
Engine Gasket Kits
Diesel Engine Rubber Seals
Rear Main Seal Installation Tools
FAQs：
Q: Does YNF17483 replace OEM 124411-01780?
A: Yes, it is fully compatible and OEM-equivalent.
Q: What is the seal made from?
A: High-temperature-resistant rubber elastomer.
Q: Is this suitable for engine rebuild applications?
A: Yes, it is widely used in engine overhaul and maintenance.
The YNF17483 124411-01780 rear seal is designed for reliable crankshaft sealing in diesel engines. Made with heat-resistant rubber and precision sealing lips, it effectively prevents oil leakage and maintains engine cleanliness and efficiency. With consistent OEM-grade performance and competitive pricing, YNF Machinery provides trusted sealing solutions for engine rebuilders, service fleets, and aftermarket distributors worldwide. Contact us today for a quotation.
