The Multiquip 1A09107043 Main Bearing Case Assembly D1403 is a genuine OEM component designed for D1403 engine applications. Sourced directly from Multiquip, this assembly meets the exact specifications of the original part, ensuring a correct, direct installation with no guesswork. This is the factory-correct assembly for D1403-powered equipment in the Multiquip lineup, making it the dependable choice when a full bearing case replacement is required.
Key Features
- Genuine OEM Casting and Tolerancing — Manufactured to the precise dimensional and material specifications of the original D1403 bearing case, ensuring correct crankshaft and bearing alignment throughout the assembly.
- Direct-Fit Installation — Engineered as a complete assembly that installs directly into D1403 engine configurations, matching all original mounting points and bearing bore dimensions.
- D1403 Engine Compatibility — Confirmed fitment for D1403-powered Multiquip equipment; use model code D1403 to verify applicability before ordering.
- Crankshaft Support Integrity — A correctly functioning bearing case holds crankshaft alignment under load, maintaining compression, reducing vibration, and protecting internal engine components from premature wear.
- Complete Assembly — Supplied as a full Main Bearing Case Assembly, so all critical case components are replaced together rather than piecemeal, supporting a thorough engine rebuild.
The main bearing case is a structural engine component that houses and supports the crankshaft main bearings, keeping the crankshaft centered and stable as it rotates under combustion loads. It plays a critical role in maintaining engine alignment — when the bearing case is worn, cracked, or out of specification, crankshaft deflection increases, leading to accelerated bearing wear, oil leaks, loss of compression, and ultimately internal engine damage. Replacing the bearing case assembly as part of an engine rebuild or overhaul restores the structural foundation that all other rotating components depend on.
For questions about fitment or to confirm this part is correct for your application, contact the DHS Equipment team directly.
Part Details
| Part Number | 1A09107043 |
|---|---|
| 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.
