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Description
4237 190 5150 STIHL Pawl – Genuine OEM Rewind Starter Part
The STIHL Pawl (4237 190 5150) is a genuine OEM starter mechanism component designed to ensure proper engagement between the recoil starter and the engine flywheel on select STIHL hedge trimmers. This pawl plays a critical role inside the rewind starter by catching and driving the flywheel during pulling, allowing the engine to crank and start reliably.
Over time, starter pawls can wear, crack, or lose engagement due to repeated starting cycles, debris contamination, or internal starter damage. A worn pawl may cause slipping, failure to engage, or inconsistent starting performance. Replacing it with the correct OEM part restores proper starter engagement without replacing the complete starter assembly.
Manufactured to STIHL factory specifications, this genuine pawl ensures correct fitment, smooth operation, and long-term durability under professional operating conditions.
Product Details
OEM Part Number: 4237 190 5150
Brand: STIHL (Genuine OEM)
Part Type: Starter Pawl
Application: Rewind starter engagement mechanism
Condition: New Genuine OEM Part
Function
This STIHL starter pawl is designed to:
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Engage the flywheel during recoil starter operation
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Transfer pulling force to crank the engine for starting
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Restore reliable starter engagement and performance
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Replace worn, cracked, or slipping starter pawls
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Support smooth and consistent engine starting
⚠️ A failing starter pawl can cause slipping, no-start conditions, or unreliable starter engagement.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4237 190 5150
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Your unit model matches those listed below
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Application matches your STIHL illustrated parts diagram
⚠️ Starter pawls are model-specific — always verify by OEM part number and starter configuration.
Compatibility
This OEM starter pawl fits select STIHL hedge trimmer models equipped with specific rewind starter assemblies, including:
Hedge Trimmers
HS 81 R (Rewind starter)
HS 81 T (Rewind starter)
HS 82 R (Rewind starter)
HS 82 T (Rewind starter)
HS 86 R (Rewind starter)
HS 86 T (Rewind starter)
HS 87 R (Rewind starter)
HS 87 T (Rewind starter)
(Exact fitment depends on production version — always verify using OEM parts diagram.)
Installation Notes
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Remove rewind starter assembly from unit
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Disassemble starter housing carefully on a clean surface
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Remove worn or damaged pawl
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Install new pawl in correct orientation
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Inspect pulley and spring condition during service
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Reassemble starter and test engagement function
⚠️ Starter components may be under spring tension — service should be performed carefully.
Maintenance Tips
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Keep starter housing clean from debris buildup
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Inspect pawls and flywheel engagement during routine service
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Replace worn pawls promptly to prevent starter damage
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Avoid excessive force when pulling starter rope
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Always use genuine STIHL OEM starter components for proper engagement and durability
