The Multiquip 1705374150 Fan Spacer 21MM D722B is a genuine OEM component designed for DLW400ES series diesel light welders. Sourced directly from Multiquip, this spacer is an exact-match replacement that installs without any guesswork, keeping your cooling system properly aligned and your machine performing as intended. Verified fitment covers DLW400ES, DLW400ESA, and DLW400ESA1 models.
Key Features
- Genuine OEM Construction — Manufactured to the same dimensional tolerances as the original, ensuring the spacer seats correctly against the D722B engine's fan assembly without gaps or misalignment.
- Exact Dimensional Match — The 21MM specification matches the original stack height, maintaining correct fan clearance and airflow balance within the cooling circuit.
- Confirmed Fitment — Direct replacement for DLW400ES, DLW400ESA, and DLW400ESA1 Multiquip diesel light welder models.
- Cooling System Integrity — A correctly positioned fan spacer keeps the fan running true at the right depth, preventing vibration, bearing wear, and overheating during extended welding operations.
- Drop-In Installation — Replaces the original spacer position-for-position, making service straightforward for technicians familiar with the D722B engine layout.
A fan spacer is a precision-machined collar that sets the axial position of the cooling fan on the engine shaft, ensuring the fan blade sits at the correct depth relative to the shroud and radiator. Without the proper spacing, the fan can run off-center, reducing airflow efficiency and placing uneven load on the engine's front bearing. On a diesel light welder like the DLW400ES, consistent cooling is critical — if the spacer is worn, cracked, or missing, the engine is at risk of overheating under load, which can lead to premature component failure and unplanned downtime on the job.
DHS Equipment is an authorized Multiquip parts dealer. If you need help confirming fitment for your specific serial number or have questions about this part, contact our team for assistance.
Part Details
| Part Number | 1705374150 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Fan Spacer 21MM D722B |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DLW400ES |
| Welders | DLW400ESA |
| Welders | DLW400ESA1 |
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.
