Disenparts idler arm extension spring closeup demonstrating robust construction for Lazer Z compatibility
Disenparts 1-603402 spring packaging view highlighting included part for easy replacement
Disenparts 4-1/2 inch length tech shot indicates precise fit
Disenparts spring installed on a mower mockup showing seamless Exmark compatibility
Disenparts spring with stamped part numbers enables quick cross-reference

Disenparts

Disenparts 1-603402 Idler Arm Extension Spring for Toro Exmark Lazer Z – 4.5 Inch Replacement

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

$9.29

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Why customers choose PatioZora Garden

Upgrade Your mower with a reliable replacement part

The Disenparts 1-603402 Idler Arm Extension Spring is crafted to fit a wide range of Toro Exmark mowers, including the Lazer Z lines and related Titan Z, ZX, and MX series. This aftermarket component is designed to restore smooth deck operation, reduce downtime, and help your mower maintain consistent performance across seasons.

Why choose this spring? Built as a durable, aftermarket alternative, this 4-1/2 inch extension spring aims to deliver dependable operation and a longer service life compared with worn or generic parts. Its design supports steady tension and predictable response during mowing tasks, making it a sensible option for routine maintenance or proactive replacement.

Key compatibility and features

  • Part numbers and cross-refs: 1-603402, 1603402, E603402, 103-3324, 285-632
  • Length: 4-1/2 inches; intended for extended, resilient operation
  • Premium quality aftermarket part designed for reliable performance over time

What to expect in everyday use

  • Improved deck tension and smoother belt/pulley interaction during cutting
  • Compatible with multiple Exmark Lazer Z configurations and Toro Titan Z/ZX/MX lines
  • Easy to replace during routine maintenance, helping you stay productive

Note: This is an aftermarket replacement part and is intended to serve as a capable alternative to OEM components. Always verify compatibility with your specific serial range and model before purchase.

Care and installation tips

Inspect the part for signs of wear before installation. Ensure the spring is seated correctly and that surrounding hardware is in good condition. Proper installation supports consistent mower performance and can reduce downtime during busy seasons.

FAQ

Q: Which mower models are compatible with this spring?

A: Compatible with Toro Exmark Lazer Z AC, AS, LC and related Titan Z, ZX, MX lines; verify your serial range.

Q: What are the key specs and part numbers?

A: 4-1/2 inch long; part number 1-603402; aftermarket replacement designed for reliable operation.

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