Multiquip 1478 Valve Rotator

The Multiquip 1478 Valve Rotator is a genuine OEM component designed for a wide range of Multiquip and Multiquip portfolio equipment, including MC94P/S, MC64P/S, WM70, WM120SH, WM120PH, MVC82VHW, MVC64VHW, MVH304GSB, AR13H, MRH800GS, GAW180HE, GA6HEB, SP118, MP2090HP, CA4HM, J3036H55, and many additional mixer, roller, saw, compactor, trowel, pump, and generator models. As a genuine OEM replacement, it is manufactured to the original design specification, ensuring a correct, drop-in installation with no guesswork. Sourced directly through authorized Multiquip channels, the 1478 Valve Rotator is the dependable choice when restoring your equipment to proper operating condition.

Key Features

• Genuine OEM Construction — Manufactured to the original Multiquip design spec, delivering the same valve rotation consistency as the part it replaces.
• Direct Drop-In Installation — Matches the original mounting interface and geometry, allowing straightforward installation without machining or adaptation.
• Broad Equipment Compatibility — Fits an extensive range of Multiquip models across mixer, roller, plate compactor, trowel, saw, pump, and generator families, including MC94P/S, WM70, MVC82VHW, AR13H, GAW180HE, and SP118 series.
• Sustained Valve Function — Ensures the engine valve rotates incrementally with each cycle, preventing uneven seat wear and maintaining consistent compression and combustion performance over time.
• Fuel and Ignition System Integrity — A correctly functioning valve rotator protects valve seat and face surfaces, helping the engine maintain proper sealing — critical on gas-powered equipment running in demanding site conditions.

A valve rotator is a small but essential engine component that causes the intake or exhaust valve to rotate slightly with each opening and closing cycle. This controlled rotation distributes heat and wear evenly around the valve face and seat, preventing the localized burning and pitting that can develop when a valve sits stationary under repeated combustion loads. When a valve rotator fails or sticks, uneven valve wear accelerates rapidly, leading to compression loss, rough running, increased fuel consumption, and — in severe cases — valve damage that can require a full engine rebuild. Replacing a worn rotator with the correct OEM part restores proper valve movement and protects the engine's long-term reliability.

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.