Husqvarna 544200001 Decompression Valve – Replacement Lawn & Garden Equipment Engine Decompression Valve Component

Part Number: 544200001
Category: Lawn & Garden Equipment Replacement Parts
Type: Decompression Valve – Replacement Lawn & Garden Equipment Engine Decompression Valve Component

The Husqvarna 544200001 Decompression Valve is a replacement engine decompression component designed for compatible Husqvarna lawn and garden equipment. Installed within the applicable engine assembly, the decompression valve temporarily reduces cylinder compression during starting, helping decrease the force required to crank or pull-start the engine. It is suitable for replacing a leaking, sticking, damaged, carbon-fouled, broken, or otherwise unserviceable decompression valve when Husqvarna part number 544200001 is specified.

Product Specifications

• Part Number: 544200001
• Brand: Husqvarna
• Product Type: Decompression Valve
• Component Type: Replacement Engine Decompression Valve Component
• Application: Lawn & Garden Equipment
• System: Engine Compression & Starting System
• Function: Temporary Compression Reduction During Engine Starting
• Condition: New

Features & Benefits

• Replacement engine decompression valve for compatible Husqvarna equipment
• Designed for installation within the applicable engine or cylinder assembly
• Temporarily reduces cylinder compression during the engine-starting process
• Helps reduce the pulling or cranking force required to rotate the engine during startup
• Supports easier starting when used with the correct engine configuration
• Designed to work with the engine's compression and combustion system according to the original equipment design
• Helps restore proper starting-system operation when the original decompression valve becomes damaged or unserviceable
• Provides a part-number-specific replacement rather than relying solely on valve appearance or thread dimensions
• Suitable for replacing a sticking, leaking, carbon-fouled, damaged, broken, worn, or unserviceable decompression valve
• Useful for engine maintenance, starting-system repair, and equipment restoration
• Direct replacement option when Husqvarna part number 544200001 is specified

Applications

• Husqvarna lawn and garden equipment
• Compatible Husqvarna outdoor power equipment
• Small-engine starting systems
• Engine cylinder assemblies
• Engine compression systems
• Manual-start engine assemblies where applicable
• Engine starting and compression-system maintenance
• Replacement of damaged or malfunctioning decompression valves
• Applications specifying Husqvarna 544200001

Important Notes

• Verify part number 544200001 before ordering
• Confirm compatibility with your specific Husqvarna equipment model and engine configuration
• The supplied product information identifies this component as a Decompression Valve
• The exact equipment and engine models associated with this decompression valve are not identified in the supplied product information
• Do not assume this component fits every Husqvarna engine equipped with a decompression system
• Do not assume this component is specifically for a chainsaw, cut-off saw, trimmer, brush cutter, blower, mower, or other particular equipment type unless confirmed by the applicable Husqvarna parts information
• The exact thread diameter, thread pitch, valve dimensions, operating pressure, material, sealing configuration, and installation torque are not identified in the supplied product information
• Similar-looking decompression valves can differ in thread specifications, dimensions, sealing surfaces, operating characteristics, and engine compatibility
• Compare the original valve's part number, threads, overall dimensions, sealing configuration, mounting location, and installed orientation before ordering
• A decompression valve is intended to reduce compression during starting and should not create a continuous compression leak during normal engine operation
• A sticking or leaking valve may contribute to hard starting, reduced compression, poor engine performance, or an inability to start, depending on the specific engine and condition
• Excessive resistance when pulling the starter does not automatically indicate a defective decompression valve; inspect the complete starting and engine system before replacing components
• Inspect the associated cylinder, valve mounting threads, sealing surface, starter assembly, recoil components, spark plug, and related engine components for wear or damage
• Check the valve and surrounding area for carbon deposits, contamination, damaged threads, leakage, or other conditions that could affect operation
• If excessive carbon accumulation is present, inspect the engine for contributing operating or combustion conditions as appropriate
• Make sure the valve mounting area and sealing surfaces are clean and undamaged before installation
• Prevent dirt, carbon particles, metal debris, or other contamination from entering the cylinder or combustion chamber during service
• Use the correct installation procedure and torque specification for the applicable engine; excessive tightening may damage the valve, threads, cylinder, or sealing surfaces
• Do not use thread sealant, locking compound, washers, or additional sealing materials unless specified for the particular engine application
• Do not grind, drill, cut, reshape, rethread, modify, or otherwise alter the decompression valve to force compatibility
• This listing is for the decompression valve; do not assume that gaskets, seals, cylinder components, starter components, spark plugs, installation tools, or mounting hardware are included unless specifically stated
• Shut off the equipment, allow the engine to cool completely, and disconnect the spark plug, battery, or other power source before servicing the engine
• Exercise caution when working around the cylinder and combustion system, as engine components may remain hot after operation
• After installation, verify proper valve seating, sealing, starting operation, compression behavior, and engine performance
• Check for abnormal compression loss, leakage, unusual noise, hard starting, or loose components before returning the equipment to normal service.