The Multiquip 21E75001J3 Spark Plug Rubber Cap is a genuine OEM component designed for MTX-series rammers including the MTX60SD, MTX60SF, MTX70SD, MTX80SD, and MTX80SF. As a direct OEM replacement, this cap is manufactured to the exact material and dimensional specifications of the original, ensuring a secure, vibration-resistant connection at the spark plug terminal. Sourced directly through authorized Multiquip supply channels, it carries the same part number used in factory assembly. If your rammer is misfiring, losing spark contact under load, or showing a cracked or deteriorated cap, 21E75001J3 is the correct replacement to restore proper ignition system integrity.
Key Features
- High-Vibration OEM Rubber Compound — Molded from the same rubber grade used in original assembly, engineered to maintain a firm seal and resist cracking under the continuous high-frequency impact cycles rammers produce.
- Secure Terminal Grip — Designed to seat flush over the spark plug terminal and ignition wire boot, preventing moisture intrusion and maintaining consistent electrical contact during operation.
- Confirmed Fitment for MTX-Series Rammers — Directly compatible with MTX60SD, MTX60SF, MTX70SD, MTX80SD, and MTX80SF models; verify your model code before ordering.
- Protects Ignition Performance — A properly seated rubber cap shields the spark plug connection from dirt, moisture, and vibration-induced arcing — a worn or split cap can cause intermittent misfires and hard starting.
- Genuine OEM Part — Supplied as an authorized Multiquip OEM replacement under part number 21E75001J3, identical to the component installed at the factory.
The spark plug rubber cap forms the protective boot between the ignition wire and the spark plug terminal, sealing the connection against moisture, dust, and mechanical shock. On a rammer — which operates under intense repetitive impact — this cap is subjected to far greater vibration stress than on most small-engine equipment, making material quality critical. When the cap cracks, hardens with age, or loses its grip, the result is an inconsistent spark that causes misfires, difficult starting, or complete ignition failure in the field.
For help confirming fitment or sourcing additional Multiquip parts for your MTX-series rammer, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 21E75001J3 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Spark Plug Rubber Cap |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rammers | MTX60SD |
| Rammers | MTX60SF |
| Rammers | MTX80SD |
| Rammers | MTX70SD |
| Rammers | MTX80SF |
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.
