Dylect® Pressure Washer Genuine Spare Part – Compression Spring (Located in Pump Head – Plunger Return Mechanism) | 65MN High-Carbon Spring Steel | Compatible Only with Flow Prime Model (Pack of 3)
The Dylect® Compression Spring is a genuine spare part engineered for the Flow Prime Pressure Washer’s plunger return system. Located inside the pump head, it provides the restoring force required for the plunger’s suction stroke, enabling smooth reciprocation and consistent compression. Built from high-carbon 65MN spring steel, it offers excellent elasticity, fatigue resistance, and long life under continuous cyclic loads.
A weak or damaged spring can cause low pressure, vibration, or unstable pump cycles. Service Note: Replace all three springs together if wear or scoring is observed. Using genuine Dylect springs ensures proper plunger movement, balanced compression, and long-term pressure stability.
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- GENUINE FLOW PRIME FITMENT – Designed exclusively for the Dylect Flow Prime Pressure Washer, this Compression Spring ensures accurate plunger return movement and maintains consistent pump timing.
- PLUNGER RETURN FUNCTION – Provides the restoring force required to return the plunger during the suction stroke, enabling balanced compression cycles and stable pressure output.
- 65MN SPRING STEEL MATERIAL – Made from high-carbon 65MN spring steel for exceptional elasticity, fatigue resistance, and long-term durability under rapid reciprocating loads.
- LOCATED IN PUMP HEAD RETURN SYSTEM – Installed behind the plunger within the pump head where it ensures smooth, precise, and vibration-free movement for efficient pressure building.
- SERVICE & LONG-TERM RELIABILITY – Replace all springs if pressure is low or if the plunger shows scoring or bending. Ensure correct orientation and proper torque of retaining hardware during installation.
- GENUINE FLOW PRIME FITMENT – Designed exclusively for the Dylect Flow Prime Pressure Washer, this Compression Spring ensures accurate plunger return movement and maintains consistent pump timing.
- PLUNGER RETURN FUNCTION – Provides the restoring force required to return the plunger during the suction stroke, enabling balanced compression cycles and stable pressure output.
- 65MN SPRING STEEL MATERIAL – Made from high-carbon 65MN spring steel for exceptional elasticity, fatigue resistance, and long-term durability under rapid reciprocating loads.
- LOCATED IN PUMP HEAD RETURN SYSTEM – Installed behind the plunger within the pump head where it ensures smooth, precise, and vibration-free movement for efficient pressure building.
- SERVICE & LONG-TERM RELIABILITY – Replace all springs if pressure is low or if the plunger shows scoring or bending. Ensure correct orientation and proper torque of retaining hardware during installation.

