The Wacker Neuson M8 Jam Nut is a genuine OEM fastener designed for a wide range of Wacker Neuson equipment, including CRT48 ride-on concrete trowels, RD7 tandem rollers, G-series portable generators, VP-series vibratory plates, RT-series trench rollers, and DPU reversible vibratory plates. As a factory-sourced component, is manufactured to the exact thread class, hardness, and dimensional tolerances specified by Wacker Neuson, ensuring correct torque retention and secure locking across all listed applications. With such broad fitment coverage, keeping this nut on hand simplifies multi-machine fleet maintenance and reduces parts-sourcing delays. Verify your model number against the fitment list before ordering to confirm compatibility.
Key Features
- Genuine OEM Thread Integrity — Manufactured to Wacker Neuson's specified M8 thread class and hardness grade, delivering the locking force and vibration resistance required in high-cycle equipment environments.
- Drop-In Hardware Replacement — Matches the original nut profile exactly, threading directly onto existing M8 fastener assemblies without rework to mating hardware or mounting surfaces.
- Broad Multi-Machine Fitment — A single part number covers CRT48 ride-on trowels, RD7 tandem rollers, G-series generators, VP- and DPU-series compaction plates, and RT-series trench rollers.
- Vibration-Resistant Locking Design — The low-profile jam nut profile is engineered to resist back-off under the sustained vibration loads common to compaction and concrete finishing equipment.
- Fleet Stocking Efficiency — One part number spans multiple machine families, making 5000010805 a practical addition to any service inventory supporting a mixed Wacker Neuson fleet.
A jam nut is a thin secondary nut threaded against a primary nut or a fixed surface to lock a fastener assembly in place and prevent loosening under load. On vibration-intensive equipment such as plate compactors, trench rollers, and concrete trowels, fasteners are constantly subjected to cyclic forces that can gradually back standard nuts off their seats — a jam nut counters this by creating a compressive clamping force between itself and the mating nut or component. When a jam nut is missing, damaged, or worn, fastener assemblies can work loose, leading to component misalignment, accelerated wear on adjacent hardware, and potential structural failure of the bolted joint.
Part Details
| Part Number | 5000010805 |
|---|---|
| Old Part Number | 0010805 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | M8 Jam Nut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CRT48-35L Trowel | CRT48-35L | 5000620113, 5000620806 |
| CRT48-35V | CRT48-35V | 5000620112 |
| CRT48-35V | CRT48-35V EU | 5000620807 |
| 1220mm/48in Ride-on Trowel | CRT48-34V | 5000620805, 5000620075, 5200004935 |
| Mobile Generator, Custom | G25 | 5000620346, 5200005557, 5200001316, 5200009372, 5200009376, 5200009370, 5200009371, 5200009373, 5200009377, 5000009258, 5200009375, 5200009374, 5100041584, 5200022587, 5100045084, 5000008228, 5100041580, 5100041592, 5100017591, 5100041581, 5100041582, 5100041583, 5100045541, 5100045542, 5100050326, 5000009462, 5000009476, 5100042507, 5100042510, 5100042512, 5100042509, 5100042508 |
| 1220mm/48in Ride-on Trowel | CRT48-31V | 5000620476 |
| CRT48-35L-PS | CRT48-35L-PS | 5000620704 |
| CRT48-35L-PS | CRT48-35L-PS EU | 5000620900 |
| Mobile Generators | G100 | 5200001319, 5200003859, 5200003858, 5200008348, 5100045499, 5100045555, 5100033312, 5200006900 |
| Mobile Generators | G120 | 5200001320, 5200006901, 5200003856, 5200008353 |
| Mobile Generator | G50 | 5200001317, 5000009259, 5000008229, 5000009463, 5000009477 |
| Mobile Generator | G70 | 5200001318, 5200003220, 5200003975, 5200003973, 5200003974, 5000009260, 5200004151, 5200008344, 5200008343, 5200008719, 5000008230, 5200023228, 5000009464, 5100025262, 5000009478, 5100042498 |
| Value Vibratory Plate, 11kN, 3 50mm/13.8in | VP1135R | 5000008709, 5000009071, 5000630061 |
| VP1135AW VIBROPLATE | VP1135AW | 5000009058, 5000630060 |
| Value Vibratory Plate, 11 kN, 356mm/14in | VP1135RW | 5000009251, 5000009512 |
| RD7 Tandem Roller | RD7A | 5100017196, 5200015243, 5200015246 |
| CRT48-33K | CRT48-33K | 5200002353 |
| VP1135A VIBROPLATE | VP1135A | 5000009057, 5000630059 |
| RD7 Tandem Roller | RD7He | 5100017193, 5100017194, 5200015241, 5200015244, 5100038031, 5100018451 |
| RD7 Tandem Roller | RD7H | 5100017195, 5100017338, 5200015242, 5200015245 |
| CRT48-33K Trowel, Dual-Fuel | CRT48-33K DF | 5200007686, 5200007687 |
| VP1030R-VIBROPLATE | VP1030R | 5000008702, 5000009504 |
| CRT48-33K | CRT48-33k | 5200002354 |
| Value Vibratory Plate, 10 kN, 300mm/12in | VP1030A | 5000008701, 5000630047 |
| Skid-mounted Mobile Generator | G85 | 5000009310, 5000008231, 5000009305, 5000009465 |
| Value Vibratory Plate, 11kN, 3 50mm/13.8in | VP1135(RAW) | 5000008710 |
| VP1030Aw | VP1030AW | 5000009514, 5000630423 |
| CRT48-57K Trowel, Power Steer | CRT48-57k-PS | 5200018779 |
| Single Drum Vibratory Roller | RS800H | 5000006583 |
| Vibratory Trench Roller | RT560 | 5000007643, 5000007642 |
| CRT48-37V Trowel | CRT48-37V | 5100024209 |
| G130 Generator, Custom T4 | G130 | 5200023234, 5100045560, 5100045566 |
| G150 Generator, Custom T4i | G150 | 5200023237, 5100045571 |
| Mobile Generator, Skid Mounted | G12 | 5000008227 |
| Single Direction Plates | AP1135A | 5000009519 |
| CRT48-57K Trowel | CRT48-57K-MS | 5100018892 |
| CRT48-37V Trowel, Power Steer | CRT48-37V-PS | 5100024291 |
| Vibratory Trench Roller | RT820HT | 5000007645, 5000008047 |
| Single Direction Plate | AP1135R | 5000009518 |
| CRT48-57K-PS | CRT48-57k-PS EU | 5200018820 |
| Vibratory Trench Roller | RT820 | 5000007644, 5000007652 |
| Walk-behind Rollers | RS600 | 5000630194, 5000630136 |
| CRT48-35V, Power Steer | CRT48-35V-PS | 5200016909 |
| Value Vibratory Plate, 11kN 356mm/14in | VP1135R-AU | 5000630102 |
| Mobile Generator | G20 | 5200016628, 5200022625 |
| Single Drum Vibratory Roller | RS600A | 5000630010 |
| CRT48-37V | CRT48-37V EU | 5100024290 |
| Reversible Vibratory Plate, 24 kN, 30cm/12in | DPU 2430F | 5000006200 |
| Single Direction Vibratory Pla te, 20kN, 40cm/16in | DPS2040 | 5000007853 |
| Single Direction Vibratory Pla te, 20kN, 50cm/20in | DPS2050 | 5000007854 |
| Reversible Vibratory Plate, 29 kN, 50cm/20in | DPU 2450F | 5000007876 |
| Vibration Plate DPU 2440F WGB | DPU 2440F | 5000007877, 5000007878, 5000007879, 5000007886 |
| FU 1,5/200 W | FU 1,5/200 W | 5000007949 |
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.
