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Description
108-4056 – TORO Extension Spring (3BW) (Genuine OEM Part)
The Toro 108-4056 Extension Spring (3BW) is a genuine OEM tension spring designed to provide controlled pulling force and return action in Toro outdoor power equipment. This extension spring plays a critical role in maintaining proper tension, component positioning, and responsive operation within various mechanical systems.
Manufactured to Toro factory specifications, the 108-4056 spring delivers consistent spring rate, durability, and long service life. Replacing worn or stretched extension springs is essential for restoring correct function and preventing uneven operation or component stress.
Key Details
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Manufacturer Part Number: 108-4056
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Brand: Toro
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Part Name: Spring – Extension
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Spring Code / Design: 3BW
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Part Type: Extension (Tension) Spring
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Function: Provides pulling force and return tension
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Material: OEM-grade spring steel
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Installation: Direct OEM replacement – no modification required
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Condition: New, genuine OEM part
Features & Benefits
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Genuine Toro OEM extension spring
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Provides consistent, reliable tension
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Helps maintain proper component positioning
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Durable spring steel construction for long service life
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Essential for restoring correct mechanical operation
Compatibility
The 108-4056 OEM Extension Spring is used on select Toro lawn and commercial equipment, depending on model and application. Common uses include:
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Deck engagement and control linkages
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Idler arm and belt tensioning systems
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Return mechanisms in mower and equipment assemblies
✔️ Always confirm fitment using your equipment’s model number and parts diagram before ordering.
Why Choose a Genuine Toro Extension Spring?
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Exact OEM spring rate and dimensions
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Maintains factory performance and reliability
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Prevents improper tension and premature wear
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Designed specifically for Toro equipment

