The Multiquip 1A09107053 is a genuine OEM Main Bearing Case Assembly D1403 designed for equipment powered by the D1403 engine. As a direct OEM replacement, this assembly is produced to the same specifications as the original component, ensuring a proper fit and correct alignment within the engine block. Sourced directly through authorized Multiquip distribution channels, the part is the correct service part for D1403-powered machines in the Multiquip lineup.
Key Features
- Genuine OEM Casting and Tolerancing — Manufactured to the exact bore geometry and housing tolerances required by the D1403 engine, ensuring proper crankshaft support and alignment.
- Drop-In Engine Replacement — Matches the original mounting pattern and bearing journal dimensions, allowing direct installation without machining or fitting adjustments.
- D1403 Engine Compatibility — Confirmed fitment for D1403 engine applications across Multiquip equipment that uses this power unit.
- Crankshaft Stability Under Load — A correctly fitted bearing case maintains crankshaft concentricity, supporting consistent power delivery and preventing premature bearing or seal wear.
- Full Assembly Construction — Supplied as a complete assembly, reducing the number of individual components required during engine rebuild or overhaul.
The main bearing case assembly is a structural engine component that houses and supports the crankshaft main bearings, keeping the crankshaft in precise rotational alignment within the engine block. It plays a critical role in maintaining the mechanical integrity of the lower end of the engine — if the bearing case is cracked, warped, or worn beyond tolerance, the crankshaft can shift, leading to rapid bearing failure, excessive vibration, and potential engine seizure. Replacing a damaged or worn bearing case assembly with a genuine OEM part like the part restores correct engine geometry and protects the surrounding components during operation.
For questions about fitment or to confirm this is the right part for your application, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | 1A09107053 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Main Bearing Case Assembly D1403 |
Compatibility & Fitment
| Name | Model |
|---|---|
| D1403 | D1403 |
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.
