Seal Washer for Rocker Cover Bolt – Royal Enfield 571118/A (Genuine OEM)

NOW SOLD AS A SET OF 2 PCS FROM 21 APRIL 2026 

The 571118/A Seal Washer is a genuine Royal Enfield OEM part designed to provide a leak-proof seal around the rocker cover bolt. This washer plays a critical role in maintaining oil-tight integrity of the engine head cover, ensuring zero oil seepage and maintaining proper valve cover pressure.

Ideal for regular maintenance or complete engine overhauls, this precision-fit washer is made of high-temperature, oil-resistant material to match factory torque settings without deformation.

🔍 Key Features:

• OEM Part Number: 571118/A

• Purpose: Seal for rocker cover bolts (head/valve cover)

• Material: Oil-resistant composite with crush-ability

• Ensures leak-proof fit for engine top-end

• High heat tolerance and pressure resistance

✅ Compatibility:

This seal washer is used in multiple Royal Enfield UCE and early BS4 models, including:

• Classic 350 / 500 (UCE models)

• Bullet 350 / 500 (UCE)

• Thunderbird 350 / 500

• May also fit certain variants of Himalayan BS4 (check OEM diagram to confirm)

⚠️ Not compatible with new-generation J-series engines (Reborn Classic, Meteor, Hunter, Super Meteor, Scram).

📦 Package Includes:

• 1 x Seal Washer (Part No: 571118/A)

❓ FAQ

Q1: What does this washer do?
✅ It seals the bolt passing through the rocker cover to prevent oil leakage and maintain engine pressure.

Q2: Is this part reusable?
🔁 It’s best replaced during engine service — reuse may lead to oil seepage or improper torque seal.

Q3: Does it fit Classic 350 Reborn or Meteor 350?
🚫 No, these models use a different rocker system (J-series engine). This part is for UCE models only.

Q4: Is this a genuine Royal Enfield part?
✅ Yes, part no. 571118/A is an OEM washer manufactured as per RE factory specs.