Lawn Mower Transmission Head Assembly – Fits 436 443 543
NEWONE Lawn Mower Head Transmission Assembly Replacement
Keep your grass trimmer running at peak efficiency with this heavy-duty Lawn Mower Head Transmission Assembly from NEWONE. Engineered from alloy steel and precision-machined for smooth, reliable power transfer, this replacement assembly is built to handle demanding outdoor cutting sessions season after season. Compatible with 436, 443, and 543 trimmer models, it's the go-to solution for restoring your lawn mower's cutting performance quickly and affordably.
Key Features
- Long-Lasting Alloy Steel Construction: Built from high-quality alloy steel for exceptional durability and endurance in tough mowing conditions.
- Precision Transmission Design: Engineered for smooth, efficient operation to maximise your trimmer's cutting output.
- Versatile Compatibility: Directly fits models 436, 443, and 543 grass trimmers and lawn mower cutting machines for wide application.
- Anti-Reverse Nut: Equipped with a reverse-thread nut for a secure, vibration-resistant attachment and straightforward maintenance.
- High-Performance Power Transmission: Designed to handle heavy-duty cutting tasks with reliable, consistent power delivery.
- Complete Kit: Includes the transmission unit plus a full set of accessories — everything you need for installation.
Specifications
| Brand | NEWONE |
| Material | Alloy Steel |
| Available Configurations | 28/9 Teeth 1.0 screw | 28/9 Teeth 1.2 screw | 28/4 Teeth 1.2 screw |
| Compatible Models | 436, 443, 543 Trimmer / Lawn Mower |
| Quantity | 1 pc Transmission + 1 Set of Accessories |
| Country of Origin | Made in China |
Package Contents
- 1 × Transmission Assembly
- 1 × Set of Accessories
Please Note
- Actual colour may vary slightly from product images due to monitor calibration and lighting conditions.
- Please allow minor measurement tolerances due to manual production processes.
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Frequently Asked Questions
Q: Which trimmer models is this lawn mower transmission assembly compatible with?
A: This replacement transmission head assembly is designed to fit models 436, 443, and 543 grass trimmers and lawn mower cutting machines. Please verify your model number before ordering to ensure a correct fit.
Q: What tooth and screw configurations are available for this transmission assembly?
A: The assembly is available in multiple configurations: 28/9 Teeth with a 1.0 screw, 28/9 Teeth with a 1.2 screw, and 28/4 Teeth with a 1.2 screw. Select the option that matches your original trimmer head specifications.
Q: What is included in the package?
A: Each package includes 1 transmission assembly unit and 1 complete set of accessories required for installation, so you have everything needed to complete the replacement.
Q: Is this a direct replacement part or does it require modifications to fit?
A: This is engineered as a direct-fit replacement for compatible 436, 443, and 543 trimmer models. The anti-reverse nut design ensures secure attachment without requiring additional modifications when fitting the correct model configuration.