The Wacker Neuson Tappet is a genuine OEM component designed for the RD7 series walk-behind tandem rollers and the DPU 4045H, DPU 4545H, DPU 5045H, DPU 5545H, DPU 6055, and DPU 6555H series reversible vibratory plate compactors. Sourced directly from Wacker Neuson, this tappet matches the original part specification for a straight-swap installation with no guesswork. It covers an extensive range of RD7 and DPU variants — including He, Heh, Hec, Heap, and Hesh configurations — making it the correct choice across a wide cross-section of the Wacker Neuson compaction lineup. When your machine's valvetrain needs attention, this is the part to reach for.
Key Features
- Genuine OEM Valvetrain Tolerancing — Manufactured to Wacker Neuson's original material and dimensional specifications, ensuring correct contact geometry between the camshaft lobe and valve stem.
- Direct-Swap Installation — Matches the original tappet profile and seat depth, dropping into the existing bore without machining or adjustment.
- Broad RD7 and DPU Series Coverage — Confirmed fit across RD7H, RD7He, RD7Heh, RD7Hf, and RD7Hehf tandem rollers, plus DPU 4045H through DPU 6555H reversible vibratory plate compactors in standard, EU, and US configurations.
- Sustained Engine Valve Timing — A correctly fitted tappet maintains consistent valve lift and timing; a worn or pitted tappet causes erratic idle, power loss, and accelerated camshaft wear.
- Engine Integrity Protection — Tappet failure can allow metal-to-metal contact in the valvetrain, which risks damage to the camshaft and valve seats — replacing this part at the first sign of wear prevents costlier repairs downstream.
A tappet — also called a valve lifter — sits between the camshaft and the valve stem inside the engine, transferring the rotational motion of the cam lobe into the linear motion needed to open and close each engine valve. It must maintain a precise contact surface to ensure valves open fully and close completely on every cycle. When a tappet wears down or develops pitting on its contact face, valve timing drifts, combustion efficiency drops, and the engine may run roughly, lose power, or produce excessive noise from the valvetrain. On compaction equipment like the RD7 tandem roller and DPU reversible plate series — where the engine runs under sustained load — keeping the valvetrain in specification directly affects both output force and long-term engine health.
Part Details
| Part Number | 5000126525 |
|---|---|
| Old Part Number | 0126525 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Tappet |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 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 |
| RD7 Tandem Roller | RD7He | 5100017193, 5100017194, 5200015241, 5200015244, 5100038031, 5100018451 |
| V.Plate DPU 5045Heap | DPU 5045H | 5000610046, 5000610052, 5000610047 |
| V.Plate DPU 4045Hap | DPU 4045H | 5000610044, 5000610051, 5000610064 |
| DPU6555HEH US | DPU6555Heh US | 5100009637 |
| DPU6555Hech US | DPU6555Hech US | 5100009650 |
| V.Plate DPU 6055Heap | DPU 6055 | 5000610049, 5000610050, 5000008766, 5000008767, 5000008768, 5000610048 |
| DPU6055-VIBROPLATE | DPU 6055He | 5000610053 |
| DPU5545Heh | DPU5545Heh | 5100009652 |
| DPU5545HEH US | DPU5545Heh US | 5100009653 |
| DPU5545Hehap | DPU5545Hehap | 5100009654 |
| DPU5545Hech | DPU5545Hech | 5100009655, 5100051523 |
| DPU4545Heh | DPU4545Heh | 5100009659 |
| DPU4545HEH US | DPU4545Heh US | 5100009660 |
| DPU4545Hech | DPU4545Hech | 5100015429, 5100051522 |
| DPU5545He | DPU5545He | 5100016947 |
| DPU5545Heap | DPU5545Heap | 5100016949 |
| DPU5545Hec | DPU5545Hec | 5100016950 |
| DPU4545He | DPU4545He | 5100016951 |
| DPU4545Hec | DPU4545Hec | 5100016953 |
| DPU6555Heh | DPU6555Heh | 5100009636 |
| DPU6555Hehap | DPU6555Hehap | 5100009638 |
| DPU6555 Hech | DPU6555 Hech | 5100009639 |
| DPU5545HECH US | DPU5545Hech US | 5100016948 |
| DPU4545HECH US | DPU4545Hech US | 5100016952 |
| DPU6055-VIBROPLATE | DPU 6055 WC | 5000610175 |
| DPU6555Hesh | DPU6555Hesh | 5100015774 |
| DPU6555Hecsh | DPU6555Hecsh | 5100015775 |
| DPU6555He | DPU6555He | 5100016940 |
| DPU6555Hes | DPU6555Hes | 5100016941 |
| DPU6555Heap | DPU6555Heap | 5100016943 |
| DPU6555Hec | DPU6555Hec | 5100016944 |
| DPU6555Hecs | DPU6555Hecs | 5100016945 |
| DPU4545Hechzf | DPU4545Hechzf | 5100022112 |
| Hydrostatic Double Drum Vibrat ory Roller | RD25 | 5000009317 |
| Vibratory Plate DPU 6555Heap | DPU 6555Heap | 5000610356 |
| DPU6555He-VIBROPLATE | DPU 6555He US | 5000610357 |
| DPU 6555Hs | DPU 6555Hs | 5100015773 |
| Vibration Plate | DPU6555He US | 5100016942 |
| Vibration Plate | DPU6555Hec US | 5100016946 |
| Vibratory Plate DPU 6555He | DPU 6555He | 5000610354 |
| Vibratory Plate DPU 6555H | DPU 6555H | 5000610355, 5100009651 |
| DPU 5045He-VIBROPLATE | DPU 5045He US | 5000610367 |
| DPU5545He-VIBROPLATE | DPU 5545He US | 5000610402 |
| Vibratory Plate DPU 4545He US | DPU 4545He US | 5100000679 |
| DPU5545H | DPU 5545H | 5100009656, 5000610352 |
| DPU4545H | DPU 4545H | 5100009661, 5000610348 |
| DPU6555Hechzf | DPU6555Hechzf | 5100021400 |
| 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 |
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.
