Royal Enfield Part Numbers Explained: Complete Decoding Guide 2026 – How to Read OEM Part Codes

Understanding Royal Enfield Part Numbers: A Workshop Expert's Guide

After 6 years of servicing 6,000+ Royal Enfield motorcycles in our Varanasi workshop, we've decoded thousands of part numbers. This guide will teach you how to read Royal Enfield OEM part numbers so you can identify exactly what you need—and avoid ordering the wrong part.

At UNDER THE HOOD, every product listing includes the genuine OEM part number. Here's how to understand what those numbers mean.

Royal Enfield Part Number Format

Royal Enfield uses several part numbering systems depending on the model generation and part type. Most modern parts follow this format:

Format: [7-digit number]/[Letter]

Example: 575139/F (Oil filter for Interceptor 650)

  • 575139 = Base part number (identifies the component)
  • /F = Revision letter (indicates design updates or variants)

Common Part Number Prefixes & What They Mean

RAN Prefix – Lighting & Electrical Assemblies

RAN = Royal Enfield Assembly Number (Lighting/Electrical)

Examples from our inventory:

RAB Prefix – Brake System Components

RAB = Royal Enfield Assembly Brake

Examples:

RAP Prefix – Lock & Key Assemblies

RAP = Royal Enfield Assembly Parts (Locks)

Examples:

RAK Prefix – Fuel System Parts

RAK = Royal Enfield Assembly Kit (Fuel)

Examples:

RAL Prefix – Switch Modules (New Models)

RAL = Royal Enfield Assembly Left/Right (Switches)

Examples:

  • RAL00154/E – RH Switch Cube Silver (Super Meteor, GT 650, Interceptor 650)
  • RAL00156/F – LH Switch Cube Silver (Super Meteor)

RAC Prefix – Control Assemblies

RAC = Royal Enfield Assembly Control

Examples:

  • RAC00054/B – Left-Hand Switch Module (Classic 350 BS6, Meteor 350, Bullet 350 BS6)
  • RAC00055/B – Right-Hand Switch Module (J-Series: Meteor, Hunter, Classic Reborn, Bullet 350)

RLX Prefix – Exhaust & Protection Parts

RLX = Royal Enfield Luxury/Accessory Parts

Examples:

  • RLX00973/G – Silencer Guard (Hunter 350)

RLY Prefix – Air Filters (New Models)

RLY = Royal Enfield Latest Year (New Generation)

Examples:

KAA Prefix – Accessory Kits

KAA = Kit Assembly Accessory

Examples:

KAR Prefix – Replacement Kits

KAR = Kit Assembly Replacement

Examples:

Standard 6-7 Digit Part Numbers (Older System)

Older Royal Enfield models (UCE, BS3, BS4) use a simpler numbering system without prefixes.

Engine & Transmission Parts

Examples from our inventory:

Brake System Parts

Examples:

Electrical Components

Examples:

Body & Trim Parts

Examples:

Lighting Components

Examples:

Lock & Key Assemblies

Examples:

Air Filters (J-Series)

Examples:

Understanding Revision Letters (A, B, C, D, E, F, etc.)

The letter suffix indicates design revisions or updates:

  • /A = Original design (first version)
  • /B = First revision (minor update)
  • /C, /D, /E, /F = Subsequent revisions

Important: Higher revision letters are usually backward compatible, but always verify with our experts at 8948585300 before ordering.

Example:

  • 575139/A = Original oil filter design
  • 575139/F = 6th revision (current version for 650 twins)

BS4 vs BS6 Part Number Differences

BS6 models (2021+) often use completely different part numbers than BS4 models, even for the same component.

Example: Air Filters

  • BS4 Classic 350: Different part number (discontinued)
  • BS6 Classic 350 Reborn: 1570250/D

Always verify BS4/BS6 compatibility before ordering. Call 8948585300 if unsure.

How to Find Your Part Number

Method 1: Check the Existing Part

Most genuine Royal Enfield parts have the part number stamped, printed, or molded directly on them:

  • Oil filters: Printed on the metal canister
  • Air filters: Stamped on the rubber seal
  • Brake discs: Etched on the disc surface
  • Cables: Printed on the cable housing
  • Electrical parts: Molded into plastic housings

Method 2: Use Your Owner's Manual

Royal Enfield owner's manuals include parts diagrams with part numbers for major components.

Method 3: Contact Our Workshop Experts

Can't find the part number? Call us at 8948585300 with:

  • Your bike's model (e.g., Interceptor 650, Classic 350 Reborn)
  • Year of manufacture
  • VIN (Vehicle Identification Number)
  • Description of the part you need

With 6 years of experience servicing 3,000+ bikes, we can identify the exact part number you need.

Common Part Number Mistakes to Avoid

Mistake 1: Ignoring the Revision Letter

❌ Wrong: Ordering "575139" without specifying the letter
✅ Correct: Ordering "575139/F" (current revision)

Mistake 2: Assuming BS4 and BS6 Parts Are Interchangeable

❌ Wrong: Using Classic 350 BS4 air filter on Classic 350 Reborn BS6
✅ Correct: Using 1570250/D for BS6 models

Mistake 3: Confusing Similar Part Numbers

❌ Wrong: Ordering 1100411/A (RH thigh pad) when you need 1100412/A (LH thigh pad)
✅ Correct: Double-check left vs. right, front vs. rear

Mistake 4: Using Aftermarket Part Numbers

Aftermarket manufacturers use their own numbering systems. Always cross-reference with genuine Royal Enfield OEM part numbers.

How to Order Parts from UNDER THE HOOD

  1. Find Your Part Number: Use the methods above or call 8948585300
  2. Search Our Store: Enter the part number in our search bar
  3. Verify Compatibility: Check the product description for model compatibility
  4. Order with Confidence: Every listing shows the genuine OEM part number
  5. Next-Day Shipping: We dispatch orders next business day across India

Popular Part Numbers & What They Fit

Part Number Description Compatible Models
575139/F Engine Oil Filter Interceptor 650, GT 650, Super Meteor 650
576029/C Air Filter Element Interceptor 650, Continental GT 650
1570250/D Air Filter Element Classic Reborn, Hunter 350, Meteor 350
RAB00076/A 320MM Front Brake Disc Interceptor 650, Continental GT 650
1100700/D Rear Disc Plate Meteor 350, Classic 350 Reborn BS6
KAA00059/A Chain & Sprocket Kit Hunter 350, Meteor 350, Classic Reborn
RAK00002/B Fuel Pump Strainer Reborn, Meteor, Hunter 350

Need Help Identifying a Part Number?

Our Varanasi workshop team has 6 years of experience and has serviced 3,000+ Royal Enfield motorcycles. We can help you:

  • ✅ Identify the correct part number for your model
  • ✅ Verify BS4/BS6 compatibility
  • ✅ Cross-reference aftermarket to OEM part numbers
  • ✅ Confirm fitment before you order

Contact us:

  • 📞 Phone: 8948585300
  • 📧 Email: support@underthehood.co.in
  • 🏪 Workshop: Varanasi, Uttar Pradesh

Browse Parts by Model

Conclusion

Understanding Royal Enfield part numbers ensures you order the correct part the first time—saving time, money, and frustration. At UNDER THE HOOD, we make it easy by listing genuine OEM part numbers on every product.

Still confused? Call 8948585300 and our workshop experts will identify exactly what you need based on your bike's model, year, and VIN.

Shop with confidence: Real availability, genuine parts, next-day shipping across India.

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