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Small metal chain adjuster tensioner screw kit for Husqvarna chainsaws

LAHDEK

LAHDEK Chain Adjuster Tensioner Screw Kit for Husqvarna 435 445 450

SKU CH-W2RQ-6MCJ5

Chain adjuster tensioner screw kit replaces OEM part 575260403 on Husqvarna 435, 445 and 450 petrol chainsaws

  • Fits Husqvarna 435 445 450 chainsaws precisely
  • Replaces OEM part 575260403 directly
  • Adjusts chain tension for safe cutting
  • Complete kit includes tensioner screw assembly
  • New replacement part ready to install

Product Identity

This replacement chain adjuster tensioner screw kit fits Husqvarna 435 445 450 chainsaws. It replaces OEM part 575260403 and is intended for owners of those petrol-powered saws who need to restore proper chain tension control.

Installation Notes

The kit installs with basic hand tools by removing the side cover and swapping the adjuster assembly. Care is needed to align the tensioner pin with the bar adjustment hole; misalignment can strip threads or leave the chain too loose.

Practical Limits

The adjuster provides only the mechanical range built into the original design, so it cannot compensate for a stretched chain or a worn guide bar. It is not suited for saws outside the 435 445 450 model range.

How it compares

Measured against everything we stock in Small Engines & Engine Parts, at today’s prices. Recalculated every night.

Price $21.99
Cheaper than about 91% of the 501 comparable items (median $28.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I confirm the chain adjuster tensioner screw kit is working correctly on my Husqvarna 435 after installation?

The chain should move freely by hand when the brake is released and hold tension without sagging during operation on the 435 model.

What components come in the package for the LAHDEK kit replacing OEM 575260403?

The box contains one complete chain adjuster tensioner kit ready to fit Husqvarna 435, 445 and 450 saws.

Which version of this adjuster kit matches a Husqvarna 445 chainsaw?

The single kit supplied covers the 435, 445 and 450 models, so no separate version selection is needed.

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