The Multiquip 91005KS4003 Radial Ball Bearing is a genuine OEM component designed for MTX70HDR and MTX80HDR rammers. As a direct Multiquip OEM part, 91005KS4003 is manufactured to the exact tolerances required to keep your rammer running at full compaction output. This bearing is confirmed to fit the MTX70HDR and MTX80HDR models, so you can order with confidence knowing it will seat and perform correctly. DHS Equipment stocks genuine Multiquip parts to help you get your machine back in service fast.
Key Features
- OEM-Grade Precision Tolerancing — Manufactured to the exact radial clearance and load ratings specified for Multiquip rammer drivetrains, ensuring smooth rotation under the high-impact cycling these machines produce.
- Direct Drop-In Fitment — Engineered to the same dimensional spec as the original, this bearing seats into the housing without any machining or shimming adjustments.
- Confirmed Rammer Compatibility — Fits MTX70HDR and MTX80HDR rammers, both GX120 Honda-powered tampers in the MTX second-generation lineup.
- Sustains Compaction Force Delivery — A worn or seized radial ball bearing disrupts the rammer's reciprocating motion, causing erratic stroke and loss of compaction energy; a fresh OEM bearing restores consistent impact output.
- Genuine Multiquip OEM Part — Sourced directly from Multiquip, part number 91005KS4003 carries full OEM traceability and meets the original design intent for this application.
A radial ball bearing supports rotating or oscillating shafts by carrying radial loads through a ring of precision steel balls seated between inner and outer races. In a rammer, this bearing absorbs the lateral forces generated by the high-speed reciprocating mechanism, allowing the drive components to spin freely and transfer energy efficiently down to the foot. When a radial ball bearing wears, develops pitting, or loses lubrication, it introduces vibration, heat, and mechanical noise into the drivetrain — left unaddressed, this can lead to accelerated wear on surrounding components and eventual loss of stroke.
For questions about fitment or to confirm this is the correct part for your machine, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | 91005KS4003 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Radial Ball Bearing |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rammers | MTX70HDR |
| Rammers | MTX80HDR |
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.
