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51978
51978 Toro Trimmer
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This air filter fits lawn and gardening tools to keep dust and debris from damaging and contaminating the carburetor. If dirt builds up, it can even effect the engine from working properly. To replace...
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This cutting head assembly is for line trimmers.
Cutting head assembly attaches to the drive shaft and houses the cutting line. The assembly may include multiple parts; refer to your parts diagram...
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Fernando
July 25, 2023
How do I replace the whole head part not the line but the whole black piece.
For model number 51978
Hi Fernando, Thank you for writing. The Trimmer Head Assembly for this model is listed as Fix Number: FIX9938586. We hope this helps!
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