DEF ignition coil for Husqvarna 435/440/445/450, reliable ignition and easier starts

DEF

DEF Ignition Coil for Husqvarna 435–450 (OEM Replacement)

High-performance patio lawn and garden made for confident daily results

$22.17

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Why customers choose PatioZora Garden

Overview

DEF ignition coil is a direct replacement part crafted for select Husqvarna chainsaws, including models 435, 435E, 440, 440E, 445, 445E, 450, and 450E. Engineered to mirror original specifications, this coil supports reliable ignition timing and steady engine response, helping you maintain smooth operation between cleanings or during regular use.

Compatibility and fit

This coil replaces the following OEM part numbers: 573935702, 505427201, 573935701, and 544243801. It is designed to install with the same mounting points and electrical connector as the original component, so installation is intended to be straightforward for the right Husqvarna saws.

  • Husqvarna 435 and 435E
  • Husqvarna 440 and 440E
  • Husqvarna 445 and 445E
  • Husqvarna 450 and 450E

Key benefits and features

  • OEM-equivalent design for compatibility with the factory wiring harness
  • Solid construction intended to withstand typical outdoor conditions and vibration
  • Copper windings aimed at efficient spark delivery
  • Replaces four common Husqvarna part numbers for flexible sourcing
  • Direct swap-in part to support easier maintenance and quicker repairs

Installation tips

  • Disconnect the spark plug before starting any replacement
  • Match the coil’s connector and mounting position to the original setup
  • Check associated ignition components if performance issues persist
  • Follow your saw’s service manual for torque and seating recommendations

Note: This DEF ignition coil is presented as a compatible, OEM-equivalent option intended to restore or maintain ignition performance on eligible Husqvarna chainsaws. Results may vary with overall engine condition and maintenance history.

FAQ

Q: Which Husqvarna models is the DEF ignition coil compatible with?

A: Compatible with Husqvarna 435, 435E, 440, 440E, 445, 445E, 450, and 450E models.

Q: What are the potential benefits of this replacement ignition coil?

A: It may support reliable spark delivery and smoother starts in compatible chainsaws.

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