The Multiquip 4F12503 Filler Cap TRLR125X/60X/70X is a genuine OEM replacement designed for TRLR125X series water trailers. As a direct OEM component sourced through Multiquip's authorized parts network, the part is manufactured to the exact specifications of the original part — ensuring a correct, trouble-free installation. This filler cap is compatible with TRLR125X water trailer applications and is the recommended replacement when the original cap is damaged, lost, or no longer sealing properly. Trust DHS Equipment to supply the right Multiquip OEM part the first time.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to Multiquip's original material and dimensional spec, ensuring the cap forms a proper, leak-free seal on the filler neck every time.
- Direct Drop-In Replacement — Engineered to match the original filler neck thread and cap profile on TRLR125X/60X/70X water trailers, so installation is straightforward with no adaptation needed.
- TRLR125X Series Fitment — Confirmed compatible with TRLR125X water trailer models; the part replaces the original cap across the TRLR125X/60X/70X application range.
- Protects Tank Contents and System Pressure — A properly functioning filler cap keeps debris, contaminants, and excess air out of the water tank, maintaining consistent flow performance from the onboard pump system.
- Prevents Spills and Contamination Risk — A cracked or missing filler cap allows water to escape during transport and exposes the tank to outside contaminants — replacing it promptly keeps the trailer operating cleanly and safely on the road and jobsite.
The filler cap seals the water tank's fill opening on Multiquip water trailers, preventing spillage during transport and keeping the tank's contents free from dirt, debris, and contamination. When the cap is in good condition, it maintains the closed system that allows the onboard pump to draw and deliver water consistently. A worn, cracked, or missing cap compromises that seal — leading to water loss on the road, pump performance issues, and potential contamination of the tank.
Part Details
| Part Number | 4F12503 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Filler Cap TRLR125X/60X/70X |
Compatibility & Fitment
| Name | Model |
|---|---|
| TRLR125X | TRLR125X |
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.
