Royal Enfield 570716/C – Nut M8 Cylinder Head OEM for UCE Engines (350 & 500 Classic, Bullet, GT)

Secure your Royal Enfield’s cylinder head components properly with the genuine 570716/C Nut M8 – Cylinder Head. This OEM nut is used on the M8 thread that fastens parts to the cylinder head in UCE engines (both 350 cc and 500 cc). It offers factory-made thread pitch, material strength, and hex head finish, ensuring proper torque and reliable assembly.

If your existing nut is stripped, corroded, rounded off, or missing, replacing with this OEM part prevents oil leaks, mechanical failures, vibration loosening, or head cover movement. Works with export / UK spec Bullet 500, Classic 500, Continental GT 535, and compatible parts diagrams show usage in many UCE 350/500 cylinder head LH/RH crankcase assemblies. Sold individually; use correct torque per service manual to avoid over-tightening. An inexpensive part, but vital for engine integrity.

Key Features:

• Genuine Royal Enfield OEM part 570716/C Nut M8 Cylinder Head 

• M8 thread, correct pitch & finish for OEM cylinder head mounting points 

• Fits export / UK / Euro III & IV UCE 500 & matching UCE export 350 models (Classic, Bullet, GT) 

• Durable steel hex nut, high quality finish 

• Low cost and simple replacement — use correct socket or spanner to avoid rounding off heads

Compatibility Table:

Variants:

• Single OEM Nut M8 – Cylinder Head 570716/C unit

• No alternative finishes confirmed under /C variant

• Supplied as standard hex-head nut

FAQs:

1. How do I check this nut is the correct fit for my engine?
   → Check your existing nut: thread pitch (M8), shape of hex head, whether it matches the head cover or rocker cover bolts. If part number is visible, confirm it’s 570716/C.

2. How many of these nuts are needed per cylinder head?
   → Depends on what you’re removing. Commonly two per head cover (one LH, one RH) if both sides are removed. Check your job / repair manual.

3. What happens if I use a non-OEM nut or damaged one?
   → Poor fit can lead to looseness, oil seepage, vibration, or even rounding of bolt/ nut heads, causing more expense. OEM ensures correct thread & material strength.

4. Is this part compatible with both UCE BS4 & BS6 engines?
   → Yes, for export / UK spec models. The nut is a mechanical fastener and generally same across UCE variants. But verify with your existing part. (Some regional differences in plating/finish may apply.)

5. Do I need any special tool or torque spec for installing 570716/C?
   → Use proper M8 socket / spanner, torque according to service manual (not over-tight). Clean threads and use correct threading to avoid cross-threading.