Husqvarna 545004301 Crankshaft Seal – Replacement Lawn & Garden Equipment Engine Oil Seal

Part Number: 545004301
Category: Lawn & Garden Equipment Replacement Parts
Type: Crankshaft Seal – Replacement Lawn & Garden Equipment Engine Oil Seal

The Husqvarna 545004301 Crankshaft Seal is a replacement engine sealing component designed for compatible Husqvarna lawn and garden equipment. This seal is intended to provide the required sealing interface around the applicable crankshaft location, helping maintain proper engine sealing and prevent unwanted leakage through the crankshaft opening. Ideal for replacing a hardened, cracked, worn, distorted, leaking, or damaged seal, the 545004301 helps restore the engine’s intended sealing configuration.

Product Specifications

• Part Number: 545004301
• Brand: Husqvarna
• Product Type: Crankshaft Seal
• Component Type: Engine Oil Seal / Shaft Seal
• Application: Lawn & Garden Equipment Engines
• System: Engine / Crankshaft Sealing System
• Function: Crankshaft Sealing & Leakage Prevention
• Condition: New

Features & Benefits

• Replacement crankshaft seal for compatible Husqvarna equipment
• Designed to seal around the applicable crankshaft location
• Helps maintain the intended sealing interface between the crankshaft and surrounding engine housing
• Helps prevent unwanted leakage through the crankshaft opening when properly installed
• Supports proper engine sealing during normal operation
• Useful during engine servicing, crankshaft repair, or seal replacement
• Ideal for replacing hardened, cracked, worn, distorted, leaking, damaged, or deteriorated crankshaft seals
• Practical replacement component for engine maintenance, rebuilding, and restoration

Applications

• Husqvarna lawn and garden equipment
• Compatible outdoor power equipment engines
• Small-engine crankshaft assemblies
• Crankcase and crankshaft sealing locations
• Engine rebuilding and servicing
• Shaft sealing applications
• Replacement of worn or leaking crankshaft seals
• Engine repair and restoration
• Routine equipment maintenance

Important Notes

• Verify part number 545004301 before ordering
• Confirm compatibility with your specific Husqvarna equipment model, engine, and crankshaft configuration
• Compare the existing seal’s inside diameter, outside diameter, width, lip configuration, profile, installation depth, and overall dimensions
• Do not substitute a crankshaft seal based solely on approximate dimensions or appearance
• Verify the required seal orientation and installation direction before installation
• Inspect the crankshaft sealing surface for grooves, scoring, corrosion, burrs, excessive wear, or other damage that could cause continued leakage
• Inspect the surrounding crankcase, bearings, gasket surfaces, and seal bore for wear or damage during service
• Keep the new seal and mating surfaces clean during installation to prevent contamination
• Use an appropriate installation method to avoid cutting, folding, distorting, or damaging the sealing lip
• Verify whether additional gaskets, O-rings, bearings, retainers, or related engine seals should be serviced during disassembly
• After installation and reassembly, inspect the crankshaft area for proper sealing and signs of leakage before returning the equipment to normal operation