Royal Enfield RAC01027/D High Tone Horn LH (Left) – Genuine OEM for Shotgun 650

If your Royal Enfield horn has become weak, inconsistent, or you want the exact factory-correct tone back, Royal Enfield RAC01027/D High Tone Horn LH is the genuine OEM replacement designed for the Left-Hand (LH) / High Tone position. This is not a generic aftermarket horn—this is the OE-spec unit intended to restore the same loudness, clarity, and reliability your bike was engineered to deliver. 

Ideal for riders facing city traffic, touring, and daily commuting where a crisp horn note improves road presence and safety. Fitment errors are one of the biggest causes of returns in horns (wrong tone, wrong side, wrong connector), so this page is written to help you match it correctly: High Tone + LH, with the correct plug and mounting.

Note on suffix: Royal Enfield part suffixes (A/B/D) can change by batch/market; the base number “RAC01027” is what matters for identification—always match your old part photos + connector, or verify by chassis/VIN before ordering.

Key Features

• Genuine Royal Enfield OEM horn (factory-spec replacement) 

• High Tone output for clearer “presence” in traffic

• LH (Left-Hand) application (important: do not confuse with Low Tone/RH setups)

• Direct replacement form-factor (mounting + plug must be matched before purchase)

• Reliable performance vs worn-out/weak stock horns

• Best choice to reduce fitment issues compared to universal aftermarket horns

• Ideal for daily commute + highway touring safety

• Recommended: replace as a pair only if your bike uses twin horns (High + Low)

Compatibility Table 

Variants

• Single piece: High Tone Horn LH (this listing)

• Common pairing (not included unless you add separately): Low Tone / RH horn (used on some dual-horn setups)

FAQs 

1. What does “High Tone Horn LH” mean?
   “High Tone” is the sharper-pitched horn in a dual-horn setup, and “LH” indicates the left-side application used in the OE layout. Many fitment issues happen when riders order the correct part number family but the wrong tone/side.

2. Will RAC01027/D fit if my old horn is RAC01027/A or RAC01027/B?
   YES

3. Is this OEM or aftermarket? Will it sound like stock?
   This is listed as Royal Enfield Genuine/OEM horn in dealer catalogs, intended to restore the stock-correct tone and reliability (unlike many universal horns that vary in note and quality). 

4. My horn is working but weak—should I replace just one or both?
   If your bike uses twin horns (High + Low) and one is weak, replacing the weak unit solves most cases. If both are weak or corrosion is visible on both, replacing as a pair gives the most consistent output.

5. How can I avoid ordering the wrong horn and reduce return risk?
   Before ordering:

• Confirm your bike model (Shotgun 650 confirmed) 

• Check your existing horn for “High/Low” and compare photos

• Match the connector plug shape

• If unsure, send your old horn photo to support for confirmation