Description
Overview:
The Thermo WA Assembly is a genuine Honda temperature control unit for pedestrian lawnmowers, fitted to regulate engine operating temperature for consistent performance and long engine life. Designed for the Honda HRG415 SD (Izy) and HRG415 PDE (Izy), it integrates neatly into the cooling system to manage heat during warm‐up and normal running. Built to Honda's OEM specification, it features a robust moulded body with a positive metal actuator to withstand vibration and outdoor conditions. By keeping the engine within its intended temperature range, it helps stabilise idle, improves cutting consistency, and supports fuel efficiency. Supplied as OEM Part No. 16620-Z1L-841, this assembly provides the correct fit and function without modification on compatible models.
Key Features:
- Genuine Honda part for assured compatibility and build quality (OEM 16620-Z1L-841)
- Precise temperature regulation for smoother running and consistent cut quality
- Helps reduce the risk of overheating and prolonged cold running
- Durable construction suited to regular mowing and outdoor conditions
- Exact-fit design for Honda HRG415 SD and HRG415 PDE with no adjustments required
- Supports easier warm-up and more stable idle under load
- Straightforward installation using standard hand tools, minimising downtime
- Reliable sealing and actuation for long service intervals and dependable operation
Typical Applications:
Ideal for scheduled maintenance or repair of Honda pedestrian mowers when experiencing overheating, slow warm-up, or unstable running. Used by homeowners, grounds staff, and contractors to restore correct engine temperature control for regular lawn care, seasonal servicing, and post-winter recommissioning.
Also known as:
Thermo wax assembly, thermostat assembly, thermal regulator, engine temperature regulator, wax-pellet thermostat, thermostat valve, Honda mower thermostat unit.
Fits Models:
HRG415 PDE, HRG415 SD, HRG465C3 PDEE, HRG465C3 SDEE, HRX476C1 HYEE, HRX476C1 PKEE, HRX476C1 VKEE, HRX476C1 VYEE
Alternate Part Numbers:
16620-Z1L-841, 16620Z1L841
Product Specifications
| L&S Part No. | 16620 Z1L 841 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Honda |
| OEM No. | 16620Z1L841 |
| Unit of Sale | 1 |
| Machine Type | Mowers |
| Fits Brands | Honda |
| Key Features | - Genuine Honda part, OEM 16620-Z1L-841 - Exact-fit for Honda HRG415 SD and HRG415 PDE - Regulates engine temperature for consistent performance - Durable construction for outdoor conditions - Straightforward installation with standard hand tools |
| Fits Models | HRG415 SD (Izy) | HRG415 PDE (Izy) | HRG465C3 PDEE (Izy) | HRG465C3 SDEE (Izy) | HRX476C1 HYEE | HRX476C1 PKEE | HRX476C1 VKEE | HRX476C1 VYEE |
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