The Multiquip ZT81A78 Spring Pin 5/32 x 1 is a genuine OEM component designed for the BP-25H gasoline backpack flex-shaft vibrator. This small but critical fastener is sourced directly from Multiquip, ensuring it matches the original specification used on the BP-25H at the time of manufacture. Keeping the correct spring pin in place is essential to the structural integrity of the vibrator assembly, and using the genuine OEM part means no guesswork on sizing or fit.
Key Features
- Genuine OEM Specification: — Manufactured to the exact diameter and length spec (5/32 x 1) used in original BP-25H production, so the pin seats and retains correctly in its bore.
- Direct-Fit Replacement: — Drops into the same position as the factory pin with no reworking of the surrounding assembly required.
- Confirmed BP-25H Fitment: — Verified for use on the Multiquip BP-25H gasoline backpack flex-shaft concrete vibrator.
- Retention Integrity: — A worn or missing spring pin allows connected components to shift or disengage under vibration, disrupting power transfer through the flex shaft and reducing consolidation output.
- Compact Part, Critical Role: — Spring pins are high-wear consumables in vibrating equipment; stocking a replacement keeps the machine serviceable with a quick swap during routine maintenance.
A spring pin — also called a roll pin or slotted spring pin — is a hollow, slotted fastener that compresses slightly when driven into a drilled hole, gripping the bore walls under spring tension to lock shafts, linkages, or housings in alignment. In a backpack flex-shaft vibrator like the BP-25H, spring pins are used at key connection points throughout the drive and housing assemblies to prevent rotational or axial movement between mating parts. When a spring pin shears or backs out, the components it was securing can shift under load, leading to vibration loss, accelerated wear on adjacent parts, or full disengagement of the drive train.
Part Details
| Part Number | ZT81A78 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Spring Pin 5/32 x 1 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Gasoline Backpack Vibrator | BP-25H |
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.
