503217321 Recoil Starter Screws 12-Pack Kit with Washers & Wrench, Pre-Applied Blue Threadlocker, Compatible with Husqvarna 340 345 350 435 440 450 455 Rancher 460 461 Chainsaws

What It Is

This 12-pack kit replaces the recoil starter screws on Husqvarna chainsaw models that use a specific M5 thread pattern. It includes pre-applied blue threadlocker, flat washers, and a hex wrench to simplify installation.

Fitment & Compatibility

Before buying, verify your chainsaw model matches this list: Husqvarna 340, 345, 350, 435, 440, 450, 455 Rancher, 460, and 461. These screws fit only the recoil starter housing—not the clutch cover, bar nuts, or other fasteners. The pre-applied threadlocker is for metal-to-metal joints; do not use on plastic housings without checking your model’s starter design. Measure the existing screw length (typically 12mm) and thread pitch (M5 x 0.8) to confirm. This is an OEM Husqvarna kit, not an aftermarket alternative.

Key Things to Know

• Installation is simple: Remove old screws, clean threads, and torque to 3–4 Nm (finger-tight plus a quarter turn). Overtightening can strip the plastic housing.
• Blue threadlocker is pre-applied: No need to add extra compound. It locks securely but can be removed with hand tools later.
• 12 screws cover multiple rebuilds: One kit is enough to replace screws on two or three starters, or keep spares for future repairs.
• Common gotcha: If the old screw is seized, use penetrating oil and a manual impact driver before attempting removal. The pre-applied threadlocker won’t help with rusted fasteners.

Should You Buy It

If you own one of the listed Husqvarna chainsaws and need to replace worn or lost recoil starter screws, this kit is a direct-fit, cost-effective solution. It’s ideal for DIY maintenance or a shop that services these models. Avoid if your saw isn’t on the compatibility list or if you prefer generic hardware without threadlocker.