Honda ATV Rear Brake Drum NEW Adjustment Wing Nut 43459-HM5-A10 & 43459-VM4-000

OVERVIEW

This precision-machined adjustment wing nut restores proper rear drum brake clearance, ensuring safe deceleration and consistent pedal leverage across your Honda ATV. Designed specifically as a drum brake hardware component, this replacement directly matches factory engineering specifications without modification. It is engineered for direct installation on legacy and current Honda all-terrain vehicles.

ENGINEERING & PERFORMANCE

The threaded geometry maintains precise tension between the brake shoes and backing plate, reducing drag fade while delivering predictable friction engagement. Built for the high-vibration environment of trail riding, the compact fastener tolerates repeated manual field adjustments without stripping the threading. Its OEM-style dimensions guarantee seamless alignment with the existing drum assembly, preserving the original actuation curve and lever feel.

KEY FEATURES

• Rear brake drum adjustment wing nut for reliable clearance tuning
• Direct replacement for OEM parts numbers #43459-HM5-A10 and #43459-VM4-000
• One unit required per rear wheel for proper assembly
• Precision-threaded design prevents slippage under vibration and load
• Suspensive multi-model compatibility spanning decades of Honda ATV platforms
• Factory-equivalent mounting envelope fits stock brake backing plates

TECHNICAL SPECIFICATIONS

• Brand: Direct OEM Replacement
• Part Name: Rear Brake Drum Adjustment Wing Nut
• Component Type: Hardware / Adjustment Wing Nut
• OEM Reference Numbers: 43459-HM5-A10, 43459-VM4-000
• Supported Years: 1985–2017
• Compatible Trims: TRX200 series, TRX250 Recon, TRX300FW, Odysseys, TRX350 FourTrax 4x4, Rancher, Foreman, Foreman Rubicon, Pilot, Rincon

FITMENT

• Honda FourTrax 200 (1990–1997)
• Honda TRX200SX (1986–1988)
• Honda TRX250 (1985–1987)
• Honda TRX250 Recon (1997–2017)
• Honda FourTrax 300 4x4 (1988–2000)
• Honda Odyssey (1985)
• Honda FourTrax 4x4 (1986–1988)
• Honda Rancher (2000–2006)
• Honda Pilot (1989–1990)
• Honda Rancher AT (2004–2006)
• Honda Foreman 400 (1995–2003)
• Honda Foreman 450 (1998–2004)
• Honda Foreman Rubicon (2001–2004)
• Honda Rincon (2003–2005)

WHY RIDERS CHOOSE THIS

Riders select this adjustment wing nut because restored drum clearance directly translates to shorter stopping distances and eliminates the spongy lever travel that develops after months of dust and moisture exposure. The straightforward threaded design allows quick trail-side tuning without specialized tools, keeping mechanical brakes operating at peak modulation. Because it perfectly mirrors the original part’s dimensions and finish, it integrates seamlessly into aged Honda chassis assemblies where aftermarket replacements often crack or strip. This reliability makes it a practical solution for anyone maintaining heavy-duty Honda ATVs in demanding environments.