The Honda 17850-Z6L-003 Throttle Lever Assembly is a genuine OEM component designed for GX630, GX660, and GX690 horizontal shaft engines. As a direct Honda OEM replacement, this assembly is built to the exact specifications of the original, ensuring the throttle responds correctly and consistently throughout its range of travel. Confirm your engine's serial number against the fitment table before ordering, as Honda supersedes parts at serial breaks across the GX630, GX660, and GX690 lines.
Key Features
- Genuine OEM Throttle Control — sourced directly from Honda, this assembly delivers the precise lever travel and spring tension the original throttle system requires for consistent engine speed control.
- Direct OEM Replacement — engineered to match the original mounting geometry, so this assembly installs into GX630, GX660, and GX690 engines without modification.
- Broad GX Big-Block Fitment — covers Honda's GX630, GX660, and GX690 horizontal shaft engines, making it the right choice for operators running equipment powered by any of these large-displacement GX-series engines.
- Check Your Serial Number — Honda updates part numbers at production breaks, so cross-referencing your engine's serial number with the fitment table ensures part number 17850-Z6L-003 is the correct assembly for your specific unit.
- Restore Full Throttle Response — a worn or damaged throttle lever assembly causes imprecise engine speed control, erratic governor response, and potential over-revving; replacing it restores accurate operator control over engine output.
The Throttle Lever Assembly is the operator-facing control that translates hand movement into a change in engine speed. It connects mechanically to the carburetor's throttle linkage and the governor, allowing the operator to set and hold a desired engine speed under varying load conditions. When the lever assembly wears, bends, or breaks, throttle input becomes imprecise — the engine may hunt, fail to hold a set speed, or respond sluggishly — making prompt replacement essential for safe and consistent operation of any equipment the engine powers.
Part Details
| Part Number | 17850-Z6L-003 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Throttle Lever Assembly |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Horizontal Shaft Engine | GX630, GX660, GX690 | 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.
Honda
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