Multiquip KD1239410040 Insulate Washer SAA6D125E-5 DCA300SSK4

The Multiquip KD1239410040 Insulate Washer SAA6D125E-5 DCA300SSK4 is a genuine OEM component designed for the DCA-300SSK4 ultra-silent diesel generator equipped with the SAA6D125E-5 engine. As an authentic Multiquip OEM part, KD1239410040 is manufactured to the exact material and dimensional specifications required for correct installation and long-term service life. This insulating washer is confirmed for use with DCA-300SSK4 series equipment, making it a direct, confidence-inspiring replacement when servicing these units. DHS Equipment stocks this part to keep your generator fleet back in service without unnecessary delays.

Key Features

• Genuine OEM Insulation Integrity — Manufactured to the precise material grade and thickness required to maintain proper thermal and electrical isolation at the mounting interface — critical for a component that must insulate under sustained diesel engine operating conditions.
• Exact-Fit Installation — Dimensioned to seat correctly at the intended fastener or mounting point on the SAA6D125E-5 engine, ensuring flush, stable contact without shimming or modification.
• Confirmed Fitment for DCA-300SSK4 — Sourced specifically for the DCA-300SSK4 ultra-silent generator platform powered by the Komatsu SAA6D125E-5 diesel engine.
• Protects Surrounding Components — A correctly functioning insulate washer prevents heat transfer and electrical continuity between fastened parts, protecting adjacent engine and generator components from accelerated wear or damage.
• Supports Proper Torque Retention — The insulating material is engineered to compress and hold correctly under specified torque loads, helping maintain secure, vibration-resistant connections throughout the generator's service cycle.

An insulate washer serves as a barrier between two mating surfaces — typically a fastener and a housing or bracket — to prevent the transfer of heat, electrical current, or both. On a large diesel generator like the DCA-300SSK4, these washers are commonly used at points where dissimilar metals meet or where electrical isolation is required to protect sensitive components from stray current or thermal stress. When an insulate washer becomes damaged, compressed beyond its serviceable limit, or is replaced with an incorrect substitute, it can compromise the integrity of the mounting joint, allow unwanted electrical paths, or accelerate wear on the components it was designed to protect.

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.