The Honda 90518-751-000 Pinion Gear Shim I (36X43.5X1.65) is a genuine OEM shim designed for H3011 riding mowers and H4013 lawn tractors. As a direct Honda OEM component, this shim is manufactured to the exact dimensional specification called out in Honda's parts catalogue — the 36X43.5X1.65 designation identifies this precise thickness variant, so confirm that measurement against your machine's requirements before ordering. This part is sourced directly through Honda's authorized parts network, ensuring it is the correct OEM replacement for the applications listed.
Key Features
- Exact Dimensional Match — the 36X43.5X1.65 specification identifies this as a distinct thickness variant; selecting the correct shim is essential for proper pinion gear alignment and drive function
- Genuine Honda OEM — manufactured to Honda's own specifications, this shim carries the same part number 90518-751-000 used in Honda's service documentation
- Confirmed Fitment — listed for H3011 riding mowers and H4013 lawn tractors; verify your machine's serial number against the fitment table, as Honda supersedes shim specifications at production breaks
- Drive Integrity — a shim of the correct thickness keeps the pinion gear properly positioned within the drivetrain; an incorrect or worn shim allows excessive play that leads to accelerated gear wear and loss of drive engagement
A pinion gear shim is a precision-thickness spacer used to set the correct axial position and mesh of the pinion gear within a gear assembly. In a riding mower or lawn tractor drivetrain, the shim controls how deeply the pinion engages with its mating gear, directly affecting how smoothly and efficiently power is transferred to the drive wheels or cutting deck. When a shim is worn, deformed, or an incorrect thickness is installed, the gear mesh becomes misaligned — resulting in noise, vibration, premature gear wear, and eventually loss of drive.
Part Details
| Part Number | 90518-751-000 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Pinion Gear Shim I (36X43.5X1.65) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Lawn Tractor | H4013 | All |
| Riding Mower | H3011 | 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.
