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139-0684 PUMP-FUEL (4DW)
$34.99
139-0684 PUMP-FUEL (4DW)
$34.99
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- 139-3616 – Toro Extension Spring (Genuine Toro OEM Part)
Description
139-3616 – Toro Extension Spring (Genuine Toro OEM Part)
The Toro 139-3616 is a genuine OEM extension spring, designed to provide consistent tension and reliable return force in compatible Toro lawn and turf equipment. This spring is commonly used in belt tensioning systems, idler assemblies, and control linkage applications, where precise spring force is essential for proper operation and component alignment.
Manufactured to Toro original equipment specifications, the extension spring is produced from high-quality, heat-treated spring steel to resist stretching, fatigue, and corrosion under repeated load cycles. Using a genuine Toro extension spring ensures correct spring rate, proper fitment, and factory-approved durability.
Product Details
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Manufacturer Part Number: 139-3616
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Brand: Toro
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Part Type: Extension Spring
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Category Code: 3BW
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System: Belt drive / tensioning / control linkage systems
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Function: Provides controlled tension and return force
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Material: Heat-treated spring steel
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OEM Status: Genuine Toro OEM replacement
Function
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Maintains proper belt or component tension
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Provides controlled return action for idlers and linkages
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Supports smooth and reliable equipment operation
Compatible With
The Toro 139-3616 Extension Spring is used on select Toro equipment, including:
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Toro riding lawn mowers
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Toro zero-turn mowers
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Toro mower deck belt and idler systems
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Toro drive and control linkage assemblies
(Exact compatibility depends on the specific Toro model, deck configuration, and system application.)
How It’s Used
This extension spring installs between designated anchor points or brackets within the equipment. As belts or components move, the spring stretches to maintain proper tension and retracts to return components to their resting position.
Correct orientation and secure attachment at both ends are essential for safe and effective operation.
Suggested Maintenance
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Inspect the spring regularly for loss of tension, corrosion, or cracking
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Ensure spring hooks remain securely attached and undamaged
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Replace the spring if deformation, fatigue, or reduced tension is observed
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Keep the spring area clean to prevent debris-related wear
The Toro 139-3616 Extension Spring is used in OEM-specified Toro tensioning and control systems where durability, correct spring force, and dependable return action are essential.
