The Wacker Neuson Locknut is a genuine OEM fastener designed for a wide range of Wacker Neuson equipment, including DPU reversible vibratory plate compactors, RD7 tandem rollers, PT3H trash pumps, HSH350 hydronic surface heaters, DS70 diesel rammers, DPS single-direction vibratory plates, and E1100 ground heaters. As a direct OEM replacement, this locknut is produced to the same specifications as the original hardware, ensuring a secure, thread-matched fit without the need for improvisation or substitution. Sourced directly from Wacker Neuson, part number is the correct replacement to maintain mechanical integrity across all compatible machines.
Key Features
- Genuine OEM Thread Specification — Manufactured to the exact thread pitch, hardness, and locking torque values specified by Wacker Neuson, so the fastener holds as intended under vibration and operational load.
- Drop-In Hardware Replacement — Matches the original fastener profile for direct installation; no chasing threads or adjusting mating components required.
- Broad Cross-Family Compatibility — A single OEM part number covering DPU and DPS vibratory plates, RD7 tandem rollers, PT3H trash pumps, DS70 diesel rammers, HSH350 hydronic surface heaters, and E1100 ground heaters.
- Vibration-Resistant Locking Design — The locking feature prevents self-loosening under the sustained vibration characteristic of compaction and pump equipment, maintaining clamp load over extended service intervals.
- Fastener Integrity Matters — A loose or incorrect locknut on rotating assemblies, pump housings, or compaction exciter systems can lead to component shift, accelerated wear, or fastener failure; using the correct OEM part eliminates that risk.
A locknut is a type of nut engineered to resist loosening under vibration and dynamic loads. Unlike a standard nut, it incorporates a locking mechanism — such as a prevailing-torque nylon insert or a distorted thread profile — that maintains clamping force even when the fastened assembly is subject to constant movement or vibration. In heavy construction equipment like vibratory plate compactors, tandem rollers, and trash pumps, standard fasteners can back off over time, causing joint movement, misalignment, or component damage. Using the correct OEM locknut ensures the hardware performs as the machine was designed to operate, keeping critical assemblies secure throughout the service life of the part.
Part Details
| Part Number | 5000129021 |
|---|---|
| Old Part Number | 0129021 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Locknut |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Hydronic Surface Heater | HSH350 | 5000620254, 5200001677 |
| PT3H Pump | PT3H | 5000009100, 5000009103, 5000009242, 5100014963, 5100014964 |
| RD 7ES | RD7H-ES EU | 5000620794 |
| RD 7S | RD7H-S EU | 5000620795 |
| RD7H-ES Tandem Roller | RD7H-ES | 5000009408 |
| RD7H-S ROLLER,DOUBLE DRUM | RD7H-S | 5000009487 |
| Double Drum Vibratory Roller | RD7H | 5000008042, 5100017195, 5100017338, 5200015242, 5200015245, 5100006333 |
| E1100 GROUND HEATER | E1100 | 5000620172, 5200001676 |
| RD7 Tandem Roller | RD7He | 5100017193, 5100017194, 5200015241, 5200015244, 5100038031, 5100018451 |
| DPU2540H | DPU 2540H | 5000610035, 5000008755 |
| DPU 2550H | DPU 2550H | 5000610036, 5000008756 |
| DPU 2560H | DPU 2560H | 5000610037, 5000008757 |
| DPU 2560H-TS | DPU 2560H-TS | 5000610038, 5000610005 |
| DPU 3050H | DPU 3050H | 5000610039, 5000008759 |
| DPU 3060H | DPU 3060H | 5000610040, 5000008760 |
| DPU 3070H | DPU 3070H | 5000610041, 5000008908 |
| DPU 3060H-TS | DPU 3060H-TS | 5000610042, 5000610006 |
| DPU 3050HE | DPU 3050HE | 5000610298 |
| DPU 3060HE-TS | DPU 3060HE-TS | 5000610302 |
| DS70H Vibratory Rammer, 13" Plastic Shoe EPA | DS70 | 5200010976 |
| DPS1850H Asphalt | DPS1850H Asphalt | 5000610033, 5000008925 |
| V.Plate DPU 5045Heap | DPU 5045H | 5000610046, 5000610052, 5000610047 |
| DPS1850H Basic | DPS1850H Basic | 5000610032, 5000008924 |
| DPS1850H Vario | DPS1850H Vario | 5000610034, 5000008926 |
| V.Plate DPU 4045Hap | DPU 4045H | 5000610044, 5000610051, 5000610064 |
| DPU6555Heh | DPU6555Heh | 5100009636 |
| DPU6555HEH US | DPU6555Heh US | 5100009637, 5100058447 |
| DPU6555Hehap | DPU6555Hehap | 5100009638 |
| DPU6555 Hech | DPU6555 Hech | 5100009639 |
| DPU6555Hech US | DPU6555Hech US | 5100009650, 5100062487 |
| V.Plate DPU 6055Heap | DPU 6055 | 5000610049, 5000610050 |
| DPU6055-VIBROPLATE | DPU 6055He | 5000610053 |
| DPU 3050H US | DPU 3050H US | 5100000310 |
| DPU5545Heh | DPU5545Heh | 5100009652 |
| DPU5545HEH US | DPU5545Heh US | 5100009653, 5100063122 |
| DPU5545Hehap | DPU5545Hehap | 5100009654 |
| DPU5545Hech | DPU5545Hech | 5100009655, 5100051523 |
| DPU4545Heh | DPU4545Heh | 5100009659 |
| DPU4545HEH US | DPU4545Heh US | 5100009660 |
| DPU6555Hesh | DPU6555Hesh | 5100015774 |
| DPU6555Hecsh | DPU6555Hecsh | 5100015775 |
| DPU6555He | DPU6555He | 5100016940 |
| DPU6555Hes | DPU6555Hes | 5100016941 |
| DPU6555Heap | DPU6555Heap | 5100016943 |
| DPU6555Hec | DPU6555Hec | 5100016944 |
| DPU6555Hecs | DPU6555Hecs | 5100016945 |
| DPU 3750Hts | DPU 3750Hts | 5000610321 |
| DPU 3750Hets | DPU 3750Hets | 5000610322 |
| DPU 3760Hts | DPU 3760Hts | 5000610358 |
| DPU 3760Hets | DPU 3760Hets | 5000610359 |
| DPU 3750Hts US | DPU 3750Hts US | 5100000311 |
| DPU 6555H | DPU 6555H | 5100009651, 5000610355 |
| DPU4545Hech | DPU4545Hech | 5100015429, 5100051522 |
| DPU 6555Hs | DPU 6555Hs | 5100015773 |
| DPU5545He | DPU5545He | 5100016947 |
| DPU5545Heap | DPU5545Heap | 5100016949 |
| DPU5545Hec | DPU5545Hec | 5100016950 |
| DPU4545He | DPU4545He | 5100016951 |
| DPU4545Hec | DPU4545Hec | 5100016953 |
| DPU5545H | DPU 5545H | 5100009656, 5000610352 |
| DPU4545H | DPU 4545H | 5100009661, 5000610348 |
| DPU5545HECH US | DPU5545Hech US | 5100016948 |
| DPU4545HECH US | DPU4545Hech US | 5100016952 |
| DPU6555Hechzf | DPU6555Hechzf | 5100021400 |
| DPU6055-VIBROPLATE | DPU 6055 WC | 5000610175 |
| DPU4545Hechzf | DPU4545Hechzf | 5100022112 |
| Reversible Vibratory Plate, 24 kN, 40cm/16in | DPU 2440H | 5000007870 |
| Vibratory Plate DPU 6555Heap | DPU 6555Heap | 5000610356 |
| DPU6555He-VIBROPLATE | DPU 6555He US | 5000610357 |
| Vibration Plate | DPU6555He US | 5100016942 |
| Vibration Plate | DPU6555Hec US | 5100016946 |
| Single Direction Vibratory Pla te, 18kN, 50cm/20in | DPS 1850H | 5000008397, 5000008750 |
| Vibration plate DPU 2450H | DPU 2450H | 5000008746 |
| Vibratory Plate DPU 6555He | DPU 6555He | 5000610354 |
| DPU 5045He-VIBROPLATE | DPU 5045He US | 5000610367 |
| DPU5545He-VIBROPLATE | DPU 5545He US | 5000610402 |
| Vibratory Plate DPU 4545He US | DPU 4545He US | 5100000679 |
| Vibration Plate | DPU 3050Hw US Army | 5100009915 |
| DPU6555Hech | DPU6555Hech | 5100051524 |
| DPU6275Heh | DPU6275Heh | 5100058467 |
| DPU5260Heh | DPU5260Heh | 5100060825 |
| DPS2050H | DPS2050H | 5100061223 |
| DPS2050Hw | DPS2050Hw | 5100061224 |
| DPU5260He | DPU5260He | 5100076465 |
| DPU5260Hehp | DPU5260Hehp | 5100076466 |
| DPU5260Hehcb+ | DPU5260Hehcb+ | 5100076467 |
| DPU5260Hehcpb+ | DPU5260Hehcpb+ | 5100076468 |
| DPU6260Hehp | DPU6260Hehp | 5100076469 |
| DPU6260Hehcb+ | DPU6260Hehcb+ | 5100076470 |
| Vibration Plate DPU6275He | DPU6275He | 5100076471 |
| Vibration Plate DPU6275Hecb+ | DPU6275Hecb+ | 5100076472 |
| DPU6275Hehcb+ | DPU6275Hehcb+ | 5100076473 |
| Vibration Plate DPU5260Hep | DPU5260Hep | 5100077269 |
| DPU5275Heh | DPU5275Heh | 5100077270 |
| DPU5260H | DPU5260H | 5100077271 |
| Vibration Plate DPU5260Hehcpb+ LOXAM | DPU5260Hehcb+ LOXAM | 5100077272 |
| DPU5275Hehcb+ | DPU5275Hehcb+ | 5100077273 |
| Vibration Plate DPU5260Hp | DPU5260Hp | 5100077274 |
| DPU5260Hecpb+ | DPU5260Hecpb+ | 5100077275 |
| Vibration Plate DPU5275He | DPU5275He | 5100077276 |
| DPU5247Heh | DPU5247Heh | 5100077277 |
| Vibration Plate DPU5275H | DPU5275H | 5100077278 |
| DPU6260Heh | DPU6260Heh | 5100077280 |
| DPU6260Hehcpb+ | DPU6260Hehcpb+ | 5100077282 |
| Vibration Plate DPU6275H | DPU6275H | 5100077283 |
| DPU6260He | DPU6260He | 5100077284 |
| Vibration Plate DPU6260Hep | DPU6260Hep | 5100077285 |
| DPU6260Hecb+ | DPU6260Hecb+ | 5100077286 |
| Vibration Plate DPU6260Hecpb+ | DPU6260Hecpb+ | 5100077287 |
| Vibration Plate DPU6260H | DPU6260H | 5100077288 |
| Vibration Plate DPU6260Hp | DPU6260Hp | 5100077290 |
| DPU4545He-VIBROPLATE | DPU 4545He | 5000610347 |
| Vibratory Plate DPU 4545Hap | DPU 4545Hap | 5000610349 |
| Vibratory Plate DPU 5545He | DPU 5545He | 5000610351 |
| Vibratory Plate DPU 5545Heap | DPU 5545Heap | 5000610353 |
| Vibratory Plate | DPU 6555Hec | 5100004060 |
| DPU6555Hec Reversible Vibratory Plate | DPU 6555Hec US | 5100004399 |
| Vibratory Plate | DPU 5545Hec | 5100005859 |
| RD7Heh | RD7Heh | 5100006334 |
| RD7Hf | RD7Hf | 5100006338 |
| RD7Hehf | RD7Hehf | 5100006339 |
| RD7Hfb | RD7Hfb | 5100006343 |
| RD7Hehfb | RD7Hehfb | 5100006344 |
| DPS3060Hv | DPS3060Hv | 5100016643 |
| DPU5260Hehb+ US | DPU5260Hehb+ US | 5100077268 |
| DPU6275Hehb+ US | DPU6275Hehb+ US | 5100077279 |
| Vibration Plate | DPU6555Hehapn | 5100079579 |
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.
