Multiquip B3120100804 ZNR Holder

The Multiquip B3120100804 ZNR Holder is a genuine OEM component designed for the DCA and MQP series super-silent and ultra-silent diesel generators. As a direct OEM replacement, this part is built to the same specifications as the original, ensuring correct installation across a wide range of compatible generator models. Verified fitment includes models such as DCA36SPXU4F, DCA45SSIU4F, DCA70SSIU4F, DCA70SSJU4F, DCA70USI2, DCA40SSKU4F, MQP56, and many additional DCA series variants. Using the correct OEM part keeps your generator's electrical protection circuitry functioning as intended.

Key Features

• Genuine OEM Electrical Component — Manufactured to the original design specification, ensuring the ZNR element is correctly secured and positioned within the generator's control circuit.
• Direct-Fit Installation — Mounts to the same fixing points as the original holder, allowing straightforward installation without modification to the surrounding assembly.
• Broad Generator Series Compatibility — Fits an extensive range of DCA super-silent, DCA ultra-silent, and MQP standby generator models, including Tier 4 and multi-variant configurations.
• Supports Surge Protection Integrity — Holds the ZNR (zinc oxide varistor) securely in place, which is critical to maintaining consistent voltage spike suppression across generator output circuits.
• Electrical Safety Relevance — A loose or failed holder can allow the ZNR component to shift or disconnect, compromising transient voltage protection and potentially exposing downstream electrical loads to damage.

The ZNR Holder is a mounting component that secures a zinc oxide varistor — commonly called a ZNR — within the generator's electrical panel or control board assembly. The ZNR itself acts as a voltage-dependent resistor, absorbing transient voltage spikes and protecting sensitive generator circuitry from electrical surges. If the holder becomes cracked, broken, or missing, the varistor can move out of position or lose contact with the circuit, leaving the generator's control electronics vulnerable to damage from voltage irregularities.

For fitment questions or help confirming compatibility with your specific generator model, contact the DHS Equipment parts team directly.

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.