The Multiquip 820458 High Altitude Jets HTN31VTCSL5 is a genuine OEM replacement part designed for the HTN31V mechanical ride-on trowel. This is a direct OEM component sourced through Multiquip's authorized parts program, ensuring correct specification and compatibility for high-altitude carburetion requirements. The 820458 is engineered specifically for HTN31V series machines operating at elevated jobsite elevations where standard jet sizing causes fuel-air mixture problems.
Key Features
- OEM Carburetor Jet Sizing — Genuine OEM jets calibrated to the correct orifice diameter for high-altitude fuel-air mixture balance on the HTN31V engine.
- Direct Carburetor Swap — Designed to seat and seal in the existing carburetor body of the HTN31V with no reworking of the fuel circuit.
- HTN31V Series Fitment — Confirmed compatibility with the HTN31V mechanical ride-on trowel platform.
- Altitude-Specific Fuel Delivery — Leaner jet sizing compensates for reduced air density at high elevation, preventing rich-running conditions that rob engine power and increase fuel consumption.
- Engine Protection at Elevation — Running the correct high-altitude jets prevents fouled spark plugs, excessive carbon buildup, and loss of blade speed that come with an over-rich mixture.
Carburetor jets control the volume of fuel delivered into the air stream inside the carburetor. At higher altitudes, thinner air means the engine receives more fuel relative to available oxygen, causing a rich mixture that reduces power, wastes fuel, and can foul the engine over time. High-altitude jets feature a smaller metering orifice to lean out the fuel delivery and restore the correct fuel-air ratio for the conditions. Installing the wrong jets — or leaving standard jets in place at elevation — results in sluggish engine response, black exhaust smoke, and accelerated wear on combustion components.
Part Details
| Part Number | 820458 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | High Altitude Jets HTN31VTCSL5 |
Compatibility & Fitment
| Name | Model |
|---|---|
| HTN31V | HTN31V |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
