The Wacker Neuson Cylinder Head Screw is a genuine OEM component designed for the LTN4Y, LTN5Y, and RD7H series machines, including models LTN5Yp, LTN5Y SA, LTN4Y ME, LTN4Y 60Hz, LTN4Y SA, LTN4Y. Sourced directly from Wacker Neuson, this is the same screw specified for original assembly — ensuring correct thread engagement, torque retention, and sealing integrity at the cylinder head. It fits an extensive range of light tower and roller models, making it a go-to stocking part for fleets running multiple Wacker Neuson units. When you need an exact-match fastener to complete a cylinder head service correctly, part is the factory-specified choice.
Key Features
- Genuine OEM Fastener Spec — Manufactured to the exact thread pitch, grade, and head geometry specified by Wacker Neuson for cylinder head assembly — no guesswork on fastener spec.
- Correct Torque Retention — Proper fastener hardness and thread form ensure the cylinder head can be torqued to specification and hold clamp load through thermal cycling.
- Drop-In Replacement — Matches the original hole pattern and fastener profile, so it installs directly without chasing threads or sourcing adapters.
- Broad Model Coverage — Compatible with LTN4Y and LTN5Y light tower series and RD7H and RD7Yehf roller series, covering a wide range of Wacker Neuson equipment in a single part number.
- Engine Integrity at the Source — A failed or incorrect cylinder head screw can lead to head gasket failure, compression loss, and coolant or oil intrusion — using the correct OEM screw protects the engine from avoidable damage.
- Safety-Critical Fastener — Cylinder head fasteners are torque-critical components; using the genuine OEM specification screw is essential to maintaining proper combustion chamber sealing and engine safety.
A cylinder head screw is a torque-critical fastener that clamps the cylinder head securely against the engine block, compressing the head gasket to form a sealed combustion chamber. This seal must withstand continuous cycles of heat, pressure, and vibration — so the fastener's grade, thread form, and dimensions are precisely engineered, not interchangeable with generic hardware. When a cylinder head screw stretches, strips, or is replaced with an incorrect fastener, the result is typically head gasket failure, loss of compression, or engine overheating, all of which can cause significant engine damage if not caught early.
Part Details
| Part Number | 5100006631 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cylinder Head Screw |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| LTN5Yp | LTN5Yp | 5100069549 |
| LTN5Y SA | LTN5Y SA | 5100069548 |
| LTN4Y | LTN4Y ME | 5100069545 |
| LTN4Y 60 Hz | LTN4Y 60Hz | 5100069546 |
| LTN4Y SA | LTN4Y SA | 5100069547 |
| LTN4Y | LTN4Y | 5100073603 |
| LTN5Ypk | LTN5Ypk | 5100077880 |
| LTN4Y RH | LTN4Y RH | 5100077620 |
| LTN5Yp HD | LTN5Yp HD | 5100079429 |
| LTN5Y | LTN5Y | 5100069550 |
| LTN5Ypa | LTN5Ypa | 5100069551 |
| LTN5Y CH | LTN5Y CH | 5100069552 |
| LTN5Y UK | LTN5Y UK | 5100069553 |
| RD7Yehf HRC | RD7Yehf HRC | 5100006337, 5100006341 |
| RD7H | RD7H | 5100006333 |
| RD7Heh | RD7Heh | 5100006334 |
| RD7Yeh LRC | RD7Yeh LRC | 5100006335 |
| RD7Yeh HRC | RD7Yeh HRC | 5100006336, 5100006467 |
| RD7Hf | RD7Hf | 5100006338 |
| RD7Hehf | RD7Hehf | 5100006339 |
| RD7Yehf LRC | RD7Yehf LRC | 5100006340 |
| RD7Af HRC | RD7Af HRC | 5100006342 |
| RD7Hfb | RD7Hfb | 5100006343 |
| RD7Hehfb | RD7Hehfb | 5100006344 |
| RD7Yehfb LRC | RD7Yehfb LRC | 5100006345 |
| RD7Yehfb HRC | RD7Yehfb HRC | 5100006346 |
| RD7Afb HRC | RD7Afb HRC | 5100006347 |
| RD10Yehf LRC | RD10Yehf LRC | 5100070502 |
| LTN4Y 120V/60Hz | LTN4Y 120V/60Hz | 5100075978 |
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.
