Multiquip 0601850590 Fuel Tank Cap Key

The Multiquip 0601850590 is a genuine OEM Fuel Tank Cap Key designed for the DCA-Series Super-Silent and Ultra-Silent diesel generator lineup, including the DCA125SSK, DCA180SSK, DCA300SSK, DCA400SSK, DCA600SSK, and DCA800SSK. As a direct OEM replacement sourced through Multiquip's authorized parts network, the part delivers the exact fit and function the machine was built around. DHS Equipment stocks this part to keep your generator fleet fueled and secured without delay. Confirm your model code against the fitment list to ensure compatibility before ordering.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's original design specifications, ensuring the key engages the fuel tank cap lock with the correct profile and tolerancing for your DCA generator.
• Direct-Fit Replacement — Matches the original lock cylinder interface on DCA-Series units, installing without modification to the cap or tank assembly.
• Broad DCA-Series Compatibility — Fits the DCA125SSK, DCA180SSK, DCA300SSK (including FEMA and Series variants), DCA400SSK, DCA600SSK, and DCA800SSK generator models.
• Fuel Security Maintained — A correctly functioning cap key keeps the fuel system locked and sealed, preventing unauthorized access and protecting fuel integrity on the jobsite.
• Fuel System Safety — Replacing a lost or damaged cap key restores proper tank closure, eliminating the risk of an unsecured cap causing fuel spills or contamination during operation or transport.

The fuel tank cap key is the dedicated locking key for the generator's fuel filler cap, allowing authorized users to unlock and open the tank for refueling while keeping it secured at all other times. Without a functioning key, the cap cannot be properly unlocked, leaving the fuel system either inaccessible or unsecured — both of which interrupt generator operation. Replacing a worn, lost, or damaged key with the correct OEM part restores full control over the fuel access point and ensures the cap seals as intended after every refueling cycle.

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.