The Honda Q14-0000-192B Helical Pinion (1:43) is a genuine OEM component designed for the WDP30 diaphragm water pump. Sourced directly from Honda, this part meets the exact specifications of the original gear installed at the factory. The 1:43 ratio designation identifies this specific variant — confirm your pump's serial number against the fitment table before ordering to ensure this is the correct pinion for your machine.
Key Features
- Genuine OEM Gear Integrity — as an authentic Honda part, this helical pinion delivers the precise tooth geometry and ratio needed for correct drive transmission inside the WDP30.
- Ratio-Specific Variant — the 1:43 designation is not interchangeable with other pinion ratios; matching this specification to your pump's configuration is essential for proper operation.
- Direct Fitment for WDP30 Diaphragm Pumps — engineered specifically for the WDP30, this part installs without adaptation using Honda's original mounting arrangement.
- Serial Number Verification Recommended — Honda supersedes parts at production breaks, so cross-check your pump's serial number against the fitment table to confirm part number Q14-0000-192B is correct for your unit.
The helical pinion is a gear component within the WDP30's mechanical drive assembly. In a diaphragm water pump, a reciprocating diaphragm — driven by a crank and connecting rod — is what moves the fluid, and the pinion transmits rotational power from the engine through the drivetrain to set that mechanism in motion. The helical tooth profile allows the gear to engage smoothly and run more quietly than a straight-cut gear under load. When this pinion wears or is damaged, drive efficiency drops and the diaphragm action becomes inconsistent, reducing the pump's output and potentially causing premature wear on connected components.
Part Details
| Part Number | Q14-0000-192B |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Helical Pinion (1:43) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Diaphragm Water Pump | WDP30 | All |
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.
