A weeping gearbox, a dripping pump shaft, or an oil-soaked engine bay — shaft seal failures are messy, costly, and almost always avoidable. Whether you're rebuilding a small engine, servicing a hydraulic pump, or replacing a worn seal on a power tool, having the exact-fit TC oil seal on hand is the difference between a 20-minute fix and a full teardown. These seals are built for mechanics, equipment technicians, and serious DIYers who need a reliable metric seal without hunting through a dealer's parts catalog.
Each seal follows the TC (double-lip) profile: a steel-reinforced outer casing pressed into the bore, a primary FKM rubber sealing lip that rides the shaft, and a secondary dust-exclusion lip that keeps contaminants out. Inner diameters are 15mm (≈0.591"), 16mm (≈0.630"), or 17mm (≈0.669"), with outer diameters ranging from 21mm up to 47mm and thicknesses from 4mm to 10mm — available in 1, 2, or 5-piece packs. Select the exact ID × OD × Thickness combination that matches your housing and shaft.
Typical use cases include small engine crankshaft seals, gearbox input and output shaft seals, hydraulic cylinder rod seals, rotary pump shaft seals, and agricultural or outdoor power equipment. The FKM compound handles petroleum-based oils, gear lubricants, and many synthetic fluids, making these seals a dependable choice wherever a standard NBR seal would fall short due to heat or chemical exposure.
