The Wacker Neuson Jam Nut is a genuine OEM fastener designed for the HI260 and HI1000 series indirect-fired air heaters. Sourced directly from Wacker Neuson, this jam nut matches the exact thread specification and material grade of the original hardware installed at the factory. It fits across multiple HI1000 configurations — including Diesel with Tank, Diesel, Gas, DGM Electric Break, and DGM Surge Brake variants — as well as the HI260 Oil with Tank and standard HI260 models. When a jam nut loosens, strips, or goes missing, replacing it with the correct OEM part keeps critical components locked in position and the heater operating as intended.
Key Features
- Correct Thread Specification — Manufactured to the exact thread pitch and dimensions of the original, ensuring proper torque retention on the mating fastener or stud.
- Genuine OEM Part — Supplied by Wacker Neuson under part number 5200019848, matching the hardware used in original production builds of HI260 and HI1000 series heaters.
- Broad HI-Series Compatibility — Fits HI260 (Oil with Tank and standard) and HI1000 (Diesel with Tank, Diesel, Gas, DGM Electric Break, and DGM Surge Brake) indirect air heaters.
- Locks Components Securely in Place — A properly seated jam nut prevents unwanted movement or loosening of threaded assemblies under vibration and thermal cycling — common conditions in portable heater operation.
- Fuel and Heat System Integrity — On indirect-fired heaters, loose or missing fasteners near fuel and burner assemblies can compromise safe, consistent operation; using the correct hardware matters.
A jam nut is a thin, low-profile nut threaded onto a stud or bolt to lock a primary nut in position by bearing against it. Rather than carrying a load on its own, it acts as a mechanical stop that prevents the main fastener from backing off due to vibration, temperature swings, or repeated use. On portable indirect-fired air heaters like the HI260 and HI1000 series, fasteners are exposed to continuous heat cycling and transport vibration — conditions that accelerate loosening. A worn, damaged, or missing jam nut allows the primary fastener to shift, which can lead to misalignment, component wear, or, in fuel-adjacent assemblies, an unsafe condition that interrupts heater performance.
Part Details
| Part Number | 5200019848 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Jam Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI260 HEATER,OIL WITH TANK | HI260 | 5200018503, 5200018504 |
| HI1000 Indirect Air Heater, Diesel w/Tank | HI1000 | 5200011232, 5200011233, 5200011231 |
| HI1000 Indirect Air Heater, DGM, Electric Break | HI1000DGM | 5200011234, 5200011235 |
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.
