The Wacker Neuson Nipple is a genuine OEM component designed for the HI series indirect air heaters and HDR series direct fired radiant heaters. Sourced directly from Wacker Neuson, this nipple meets the exact specifications required by the HI 110D, HI 110HD D, HI 200D, HI 200HD D, HI 300D, HI 300HD D, HI 400HD D, HI 35, HI 90, HI 90HD, HI 120, HI 120HD, HDR 45, HDR 115, HDR 155, HD 50, and HD 70 heater models. As a genuine OEM part, the ensures a direct, correct-specification replacement with no guesswork on fitment. Keep your heating equipment running through demanding cold-weather operations with the right part the first time.
Key Features
- Genuine OEM Fuel/Fluid Path Integrity — Manufactured to Wacker Neuson's exact thread form, diameter, and material grade, ensuring leak-free connections in the heater's fuel or fluid circuit.
- Direct Installation Fit — Matches the original port threading on HI and HDR series heaters, threading in cleanly without re-tapping or adaptation.
- Broad HI & HDR Series Coverage — Confirmed fitment across HI 110D through HI 400HD D indirect air heaters, HDR 115 and HDR 155 radiant heaters, and HD 50/HD 70 models.
- Sustained Heater Output — A sound nipple maintains proper fuel or fluid flow to the burner assembly; a cracked or stripped nipple can cause pressure loss, leaks, or heater shutdown in cold-critical conditions.
- Fuel System Safety — Correct thread engagement and material compatibility are essential in diesel fuel circuits; using the specified OEM nipple reduces the risk of fuel seepage at the connection point.
A nipple is a short threaded fitting used to connect two sections of pipe, hose, or ported components within the heater's internal plumbing circuit — typically in the fuel delivery or fluid transfer path. It creates a sealed, pressure-rated junction that allows fuel or fluid to move between components without leakage. When a nipple becomes cracked, corroded, or stripped at the threads, it can introduce air into the fuel line, cause fuel seepage, or disrupt flow entirely — leading to inconsistent burner performance or a complete heater shutdown at exactly the moment reliable heat output is most critical.
Part Details
| Part Number | 5000183936 |
|---|---|
| Old Part Number | 0183936 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Nipple |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 400HD D Indirect Air Heater | HI400HDD | 5000620868 |
| HI 110HD D Indirect Air Heater, Diesel | HI110HD D | 5000620864 |
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 110D, HEATER-INDIRECT, DIESEL, -20° | HI110D | 5000620915 |
| HI 200 D Indirect Air Heater | HI200D | 5000620865, 5200011877 |
| HI 200HD D Indirect Air Heater | HI200HDD | 5000620916, 5200011878 |
| HDR 155 Direct Fired Radiant Heater | HDR155 | 5200007530 |
| HDR 115 Direct Fired Radiant Heater | HDR115 | 5100018592 |
| HDR 45 | HDR45 | 5200013800 |
| HD 50 | HD50 | 5200019335 |
| HD 70 | HD70 | 5200019336 |
| HI35 | HI35 | 5200019337 |
| HI 90 | HI90 | 5200019340 |
| HI 90HD | HI90HD | 5200019341 |
| HI 120 | HI120 | 5200019342 |
| HI 120HD | HI120HD | 5200019343 |
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.
