The Genie 99421GT is a genuine OEM Plastic Spacer, #10 x 5/16 x 1/8 built for the TZ-34/20 trailer-mounted articulating boom lift. As a direct OEM part, it matches the original dimensional spec exactly, so it drops into place without fitment guesswork.
Key Features
- Genuine OEM Dimensional Conformity — manufactured to Genie's original #10 x 5/16 x 1/8 specification, ensuring the correct material grade and thickness for this application.
- Exact-Fit Replacement — this spacer is sized to install directly in the position vacated by the original, with no reworking or shimming needed.
- Confirmed TZ-34/20 Fitment — designed specifically for the Genie TZ-34/20 trailer-mounted articulating boom lift, eliminating compatibility uncertainty at the point of order.
- Maintains Correct Component Spacing — a spacer at the correct thickness keeps mating parts properly aligned and seated; an undersized or oversized substitute can introduce unwanted movement or uneven load distribution.
- Genuine Genie Part — sourced directly from Genie, this component carries the same part number — 99421GT — that appears in the TZ-34/20 parts manual, making cross-referencing straightforward.
A spacer controls the gap between two mating components, holding them at the correct distance so that fasteners clamp evenly and parts stay in their designed alignment. When a spacer is missing, cracked, or compressed beyond its original thickness, the components it separates can shift, causing uneven wear, fastener loosening, or unwanted play in the assembly. Replacing a worn spacer with the correctly sized OEM part restores proper contact and keeps the surrounding components working as intended.
Part Details
| Part Number | 99421GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Plastic Spacer, #10 x 5/16 x 1/8 |
Compatibility & Fitment
| Name | Models |
|---|---|
| TZ-34/20 | TZ-34/20 |
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.