Multiquip 6150612520 Oil Cooler O-Ring DCA400SSKCB/SA6D140E-2

The Multiquip 6150612520 is a genuine OEM Oil Cooler O-Ring DCA400SSKCB/SA6D140E-2, designed for the DCA400SSKCB ultra-silent diesel generator and its SA6D140E-2 engine. As a factory-sourced sealing component, it matches the exact material grade and dimensional profile specified for this application, ensuring a secure, leak-free seal at the oil cooler interface. This part is confirmed to fit the DCA400SSKCB and SA6D140E-2, making it the correct choice when servicing the oil cooling circuit on these units. When your machine needs it, using the right OEM seal eliminates the guesswork and keeps the repair on spec.

Key Features

• Correct Material and Compression Grade — Manufactured to the exact elastomer specification required by the SA6D140E-2 engine's oil cooler circuit, ensuring proper seating and sustained sealing under operating temperatures and pressures.
• Drop-In Sealing Fit — Profiles match the oil cooler housing groove precisely, allowing straightforward installation without trimming, stretching, or adapting the seal.
• Confirmed Fitment — Directly compatible with DCA400SSKCB ultra-silent generators equipped with the SA6D140E-2 diesel engine.
• Leak Prevention at the Oil Cooler — A worn or damaged O-ring at the oil cooler allows coolant or oil cross-contamination, which can cause engine damage; replacing it promptly with the correct seal restores a clean, isolated cooling circuit.
• Genuine OEM Sourcing — Supplied as a genuine Multiquip OEM component, meeting the same standards as the original part installed at the factory.

The oil cooler O-ring creates a pressure-tight seal between the oil cooler assembly and the engine block, preventing oil and coolant from mixing or leaking externally. In a large diesel generator like the DCA400SSKCB, the oil cooler works continuously to regulate engine oil temperature, and the integrity of every sealing point in that circuit directly affects engine longevity. When this O-ring degrades — through heat cycling, compression set, or age — it can allow seepage that goes unnoticed until more serious damage occurs, making timely replacement a key part of routine engine 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.