Multiquip 50398400 Cylinder Head Bolt 1D81S

The Multiquip 50398400 Cylinder Head Bolt 1D81S is a genuine OEM replacement designed for the MVH508DZ reversible plate compactor. Sourced directly through Multiquip's authorized parts program, this bolt meets the exact torque and dimensional specifications required by the engine on this machine. If you're verifying fitment, confirm your model is the MVH508DZ before ordering.

Key Features

• OEM-Grade Fastener Integrity — Engineered to the precise thread pitch, grade, and tensile strength specified for this cylinder head application, ensuring a secure and properly torqued installation.
• Direct-Fit Replacement — Installs in the same position as the original bolt with no reworking of the cylinder head or block required.
• Confirmed MVH508DZ Fitment — Verified for use on the Multiquip MVH508DZ heavy-duty reversible plate compactor.
• Critical Engine Seal Protection — A correctly specified cylinder head bolt maintains consistent clamping force across the head gasket, preventing compression loss, coolant intrusion, and engine damage over time.
• Safety-Critical Application — Cylinder head fasteners are subject to sustained heat cycling and mechanical stress; using the correct OEM bolt helps prevent fastener fatigue and head gasket failure under load.

A cylinder head bolt is a safety-critical fastener that clamps the cylinder head firmly against the engine block, compressing the head gasket to create a sealed combustion chamber. Without proper clamping force — delivered by correctly specified bolts torqued to the right value — the head gasket can fail, leading to compression loss, oil leaks, or internal engine damage. When a cylinder head bolt stretches, strips, or breaks, it must be replaced with a part that matches the original grade and thread specification exactly to restore a proper seal and protect the engine.

For questions about fitment or to confirm this part is correct for your machine, contact the DHS Equipment parts team before ordering.

Part Details

Compatibility & Fitment

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.