Essential details
MOQ:200
Shipping:Express Delivery, Air freight, Ocean freight
Product Introduction
Engine‑use National cross‑reference skeleton oil seals are radial lip‑type rotary shaft sealing spare parts for gasoline and diesel engines, direct drop‑in substitutes for National original part‑numbers. Manufactured by compression vulcanization and metal‑rubber composite assembly. Rubber options include NBR, FKM, HNBR for different temperature requirements; metal shell plus stainless‑steel garter spring maintains stable lip radial preload. Available configurations cover TC, TB, TA single‑lip and double‑lip structures. These interchange seals strictly match original National dimensional specifications without housing modification. Featuring good oil‑resistance, heat‑aging resistance and wear‑resistance, working temperature‑30℃‑160℃ depending on rubber formulation. They retain engine oil inside crankshaft, camshaft and other rotating assemblies, and block dust, moisture and grit ingress. Widely used for passenger cars, trucks, construction machinery and generator‑set engines. Mass cross‑reference sizes are kept in stock. Custom dimension, rubber material and OEM / National‑equivalent part‑number marking are supported per samples or part‑number lists for engine aftermarket repair projects.
