Harley-Davidson X440T Genuine Switch Start and Throttle Assembly – HDHR4AAA7L000000GS – RH Handlebar Throttle & Starter Switch Unit

If your Harley X440T has developed throttle play issues, damaged switch housing, starter button problems, cracked throttle tube housing, or rough RH control feel, replacing the complete Switch Start and Throttle Assembly is the cleanest OEM solution. Your box label clearly confirms HDHR4AAA7L000000GS – SWITCH START AND THROTTLE ASSEMBLY, which makes this a complete right-side control/throttle assembly part rather than a small repair item.

Because this is a high-value control assembly, it should be sold as a genuine diagnosis-first replacement. It is not a casual accessory. If the old unit has physical damage, sticky throttle return, failed starter switch action, or broken housing, a full genuine assembly is often the safest fix versus local repairs or mixed used parts.

Key Features 

• Part Number / SKU: HDHR4AAA7L000000GS

• Printed item name: SWITCH START AND THROTTLE ASSEMBLY

• OEM complete RH control / throttle-side assembly for proper fit and finish

• Best suited for issues like starter switch failure, damaged throttle housing, worn switch body, or broken RH control unit

• Safer and cleaner than patchwork local repairs on a premium motorcycle

• Helps restore factory-style throttle operation and switchgear feel

• High return-prevention value: buy only after matching the exact code + side + connector/setup

• Genuine boxed stock, ideal for workshop-confirmed replacement

Compatibility Table

Caution note: This is a control-side mechanical/electrical assembly, not a universal switch. Match by part number + right-side requirement + old unit photo before dispatch.

Variants 

• Single OEM assembly only: HDHR4AAA7L000000GS – Switch Start and Throttle Assembly
  No color/size variants shown on the box label.

What’s in the Box

• 1 × Genuine Switch Start and Throttle Assembly – HDHR4AAA7L000000GS

Accuracy note: The label confirms a complete assembly, but not the exact sub-components externally. Sell it as a sealed genuine assembly unless you open one and document every included piece.

Installation & Maintenance Notes

• Recommended only for professional installation

• Confirm side and setup before fitting: this is the starter + throttle control assembly

• Compare with the old unit for connector style, housing shape, and cable/throttle arrangement

• After installation, check starter button function, throttle free play, and smooth throttle return

• Do not open the sealed box until fitment is confirmed, especially for workshop orders

FAQs (Schema-Ready)

Q1. What is HDHR4AAA7L000000GS?
It is a genuine boxed part labeled “Switch Start and Throttle Assembly.”

Q2. Is this the right-side handle switch?
Yes, based on the product name it is the starter + throttle-side control assembly, which is typically the RH handlebar side on a motorcycle.

Q3. Will it fit my Harley X440 / 440X?
It is stocked in Harley X440T context, but because this exact SKU is not strongly indexed on public parts sites, confirm using VIN / old unit photo / connector match before ordering.

Q4. When should this be replaced?
Typical reasons include starter button failure, cracked switch housing, damaged throttle housing, sticky throttle action, or broken RH control body.

Q5. Is this a small repair kit or a full assembly?
The box label states Switch Start and Throttle Assembly, which indicates an assembly-level genuine part, not a tiny repair consumable.

Q6. Why buy the genuine assembly instead of repairing locally?
Because throttle and switchgear parts are fitment-sensitive and safety-relevant. A genuine assembly usually gives the cleanest fit, proper function, and fewer repeat workshop visits.