Description
Overview:
The Flap Spring for Masport 200ST and 250ST mowers (OEM No. MA581349) is a Genuine Masport Part designed to keep the rear flap operating correctly. Made from durable, hardened spring steel, it provides the correct return tension so the flap opens and closes as intended, helping with safe discharge and grass collection. This spring is sized and wound to match Masport housings for a reliable fit, avoiding guesswork. It is commonly used on domestic and professional walk‐behind mowers, including the Masport 200ST and 250ST series, and is suitable for routine replacement during maintenance when the original spring has weakened, bent, or broken. A straightforward swap with basic hand tools restores proper flap function and supports consistent mowing performance.
Key Features:
- Genuine Masport Part for assured compatibility and performance (OEM MA581349)
- Hardened spring steel for long service life and stable tension
- Maintains correct rear flap/deflector operation for safe, tidy mowing
- Direct-fit design to match Masport brackets and pivot points
- Helps prevent flap drag, misalignment, or incomplete closure
- Suitable for regular maintenance where original springs fatigue over time
- Quick installation with standard hand tools; no modifications required
- Engineered to withstand repeated cycling and outdoor conditions
- Supports reliable bagging or discharge, depending on mower setup
Typical Applications:
Replacement of a worn, stretched, or broken flap spring on Masport walk‐behind mowers. Ideal when the rear flap fails to return, chatters, or does not seal correctly against the deck or catcher. Used during seasonal servicing to restore safe operation and proper grass flow on residential lawns, commercial grounds, and light landscaping work.
Also known as:
Rear flap spring, discharge flap spring, catcher door spring, chute flap return spring, deflector torsion spring for Masport mowers, mower flap return spring.
Fits Models:
150ST, 150ST L, 150ST SP, 150ST SP L, 150STL, 150STSP, 200ST, 200ST L, 200STL, 250ST, 250ST SP, 250ST SP L, 250STSP, 350 ST SP, 350ST SP, 350STSP, 400ST, 450ST SP, 450STSP, Classic, Classic L, ROCKETL, Rocket L, Rocket SP, Surecut L
Product Specifications
| L&S Part No. | MA581349 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Masport |
| OEM No. | MA581349 |
| Unit of Sale | 1 |
| Applications | 150ST, 150ST L, 150ST SP, 150ST SP L, 150STL, 150STSP, 200ST, 200ST L, 200STL, 250ST, 250ST SP, 250ST SP L, 250STSP, 350 ST SP, 350ST SP, 350STSP, 400ST, 450ST SP, 450STSP, Classic, Classic L, ROCKETL, Rocket L, Rocket SP, Surecut L |
| Machine Type | Mowers |
| Fits Brands | Masport |
| Fits Models | 150ST SP (2019 Jan 464946) | 150ST SP L (2018 Sep 465739) | 250ST SP (2019 Nov 465805) | 250ST SP L (2019 Dec 465804) | 350ST SP (2020 Mar 465806) | 450ST SP (2019 Nov 465787) | 150ST (2015 Sep 464923) | 150ST L (2018 Aug 465738) | 200ST (2015 Sep 48380) | 400ST (2018 Sep 465740) | 200ST L (2018 Sep 465741) | Rocket SP (2014 Mar 478971) | Rocket SP (2015 Dec 464933) | Rocket SP (2019 Dec 465810) | Rocket L (2018 Dec 465724) | Rocket L (2020 Dec 465808) | Classic | Classic L | Surecut L (2018 Dec 465718) | Classic (2014) | Classic (2012) |
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