The Multiquip 03785600 is a genuine OEM Big End Bearing 2G40 Hatz designed for RAMMAX walk-behind rollers including the RW1404, RW1404MR, and RW1504HF. As a factory-sourced component, this bearing meets the original engineering specifications for the Hatz diesel engine used across these roller models, ensuring a correct installation with no guesswork on fitment. Sourced directly through Multiquip's authorized OEM parts program, 03785600 delivers the same dimensional accuracy and material grade as the bearing originally installed at the factory. If you're servicing an RW1404MR (S/N 326075 and up) or an RW1504HF (up to S/N ), this is the verified replacement part for your machine.
Key Features
- Genuine OEM Bearing Precision — Manufactured to the exact tolerancing required for the Hatz 2G40 diesel engine's connecting rod big end, ensuring correct clearance and load distribution.
- Direct Engine Replacement — Engineered to seat and torque to spec within the Hatz 2G40 crankshaft assembly with no reworking of mating surfaces.
- Confirmed Fitment — Verified for RW1404, RW1404MR (S/N 326075 and up), and RW1504HF (up to S/N 1534188) RAMMAX walk-behind rollers.
- Engine Integrity Under Load — A correctly functioning big end bearing keeps the connecting rod stable at operating RPM; a worn bearing leads to rod knock, accelerated crankshaft wear, and eventual engine failure.
- Critical Engine Safety Component — Big end bearing failure can result in catastrophic engine damage during operation; using the correct OEM-spec replacement is essential when performing an engine rebuild or overhaul.
The big end bearing sits at the junction between the connecting rod and the crankshaft journal inside the engine. Its job is to allow the connecting rod to rotate smoothly around the crankshaft as the piston moves up and down, absorbing the high mechanical loads generated during each power stroke. When this bearing wears, clearances open up, oil pressure drops at that journal, and the characteristic knocking sound of a failing rod bearing appears — left unaddressed, the connecting rod can seize or break, causing severe internal engine damage. Replacing this bearing at the first sign of wear, or as part of a scheduled engine overhaul, protects the crankshaft and restores proper engine function to your RAMMAX roller.
Part Details
| Part Number | 03785600 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Big End Bearing 2G40 Hatz |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | RW1404MR S/N 326075 and up |
| Rollers | RW1504HF up to S/N 1534188 |
| Rollers | RW1404 |
| Rollers | RW1404MR |
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.
