18413 New Starter Motor Replacement for Kubota Zero Turn Mowers

In this review the 18413 New Starter Motor Replacement is evaluated for owners of Kubota ZD326, ZD331, ZD25 and ZD28 zero turn mowers using the D1105 25HP diesel engine. The bottom line: this is a straightforward, premium-quality replacement that aims to match OEM fit and function while offering a two-year warranty, making it worth considering for any mower owner who needs reliable starting performance without sourcing an expensive original part. The review focuses on fitment, build quality, and practical installation details.

Key Features

• OEM Compatibility: Designed to replace multiple OEM numbers so it fits common Kubota starter applications without modification.
• Build Quality: Manufactured with new premium components to meet or exceed OEM specifications for long term durability.
• Quality Management: Produced in a factory certified to IAFT 16949 standards, which supports consistent production quality and traceability.
• Precise Fit: Standardized production keeps dimensions accurate so installation is typically straightforward and time saving.
• Warranty: Includes a two-year warranty, providing extra confidence for buyers replacing a critical engine component.

Who It's For

This starter motor is aimed at owners and small-service technicians who maintain Kubota ZD-series zero turn mowers with the D1105 25HP diesel engine and need a reliable replacement that mirrors OEM part numbers. It is particularly useful when the original starter is worn, failing to engage, or drawing excessive current at cranking.

Those who should look elsewhere include users with non-compatible engines or mower models not listed among ZD326, ZD331, ZD25 or ZD28, and buyers who require an exact brand OEM unit for warranty transfer or equipment resale that specifies factory parts.

Pros & Cons

Pros

• Direct replacement for multiple OEM numbers, reducing fitment guesswork.
• New premium components that are engineered to meet or exceed OEM specs for reliable starts.
• Manufactured under IAFT 16949 quality controls, which improves consistency across units.
• Two-year warranty gives added protection after installation.

Cons

• Compatibility requires careful parts-number checking; not universal across all Kubota models.

Specifications

Power	1.1 KW
Voltage	12 Volt
Pinion Teeth	9 Teeth
Rotation	CW (clockwise)
Engine Fit	D1105 25HP diesel
Compatible Models	Kubota ZD28, ZD331, ZD25F, ZD326P, ZD331P
Warranty	2 years

Our Verdict

The 18413 starter replacement is a sensible value choice for Kubota zero turn mower owners who need a dependable, OEM-compatible unit with modern quality controls and a two-year warranty. Buy it if you want a like-for-like replacement that simplifies installation and reduces downtime; confirm your part number first to ensure an exact fitment.

Frequently Asked Questions

Will this starter fit my Kubota ZD326?
It is listed as compatible with ZD326 series models that use the D1105 25HP engine, but you should verify the OEM number on your original starter to be certain.

What is the warranty period?
The product includes a two-year warranty from the manufacturer for defects and workmanship.

Is this a new or remanufactured unit?
The unit is built with new premium components and is supplied as a new replacement designed to meet or exceed OEM specifications.