Multiquip 0605505030 Fuel Cap Tank With Key

The Multiquip 0605505030 Fuel Cap Tank With Key is a genuine OEM component designed for DCA-series ultra-silent diesel generators including the DCA300SSK, DCA400SSK, DCA500SSK, DCA600SSK, DCA800SSK, DCA180SSK, DCA125SSK, DCA150SSK2, and DCA400SPK, among others. As a factory-sourced replacement, this cap is manufactured to the exact tolerances and specifications of the original part, ensuring a secure, leak-free seal on the fuel tank. The keyed design provides an added layer of access control, which is especially important on generator sets deployed in shared-site or long-term rental applications. Confirm your model number against the fitment list to ensure this is the correct cap for your unit.

Key Features

• Genuine OEM Fuel System Integrity — Manufactured to the original sealing specification, this cap maintains proper fuel tank pressure and prevents contamination or spillage during operation.
• Keyed Access Control — The integrated key lock restricts unauthorized fuel access, making this cap well-suited for job sites where generator security and fuel accountability are a priority.
• Direct-Fit Replacement — Engineered to thread directly onto the original fuel tank fitting with no modification; removes and installs just like the factory cap it replaces.
• Broad DCA Series Compatibility — Fits a wide range of Multiquip ultra-silent diesel generator models including DCA180SSK, DCA300SSK, DCA400SSK, DCA500SSK, DCA600SSK, DCA800SSK, and DCA400SPK series units.
• Fuel Containment and Safety — A properly sealing fuel cap prevents fuel vapor release and spillage — critical on enclosed generator sets where fuel management directly affects safe, compliant operation.

The fuel cap seals the generator's fuel tank, preventing fuel from leaking, evaporating, or becoming contaminated during transport and operation. On keyed caps like the Multiquip 0605505030, the lock cylinder also restricts unauthorized access to the fuel supply — a practical feature on rental fleets, FEMA deployments, or any site where multiple personnel are present. A worn, cracked, or missing fuel cap can allow dirt and moisture into the tank, degrade fuel quality, and create a fire or spill hazard, making timely replacement an important part of routine generator maintenance.

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.