Genuine Royal Enfield Manifold Inlet (Intake Manifold) for Classic 500 EFI & Bullet 500 EFI | 571080 (571080/K Supersedes 571080/G)

The Royal Enfield Manifold Inlet (Intake Manifold) 571080 is the rubber/metal intake coupling that connects the throttle body to the cylinder head, ensuring an airtight path for the air–fuel charge on EFI 500cc UCE models. In the Royal Enfield EFI components catalogue, 571080 is listed as “Manifold-Inlet” under EFI components.

A worn or cracked manifold is a common cause of air leaks, leading to symptoms like high/unstable idle, lean running, hesitation, poor throttle response, hard starting, and backfiring. Replacing it with a genuine part restores proper sealing and engine behavior—far more reliable than low-grade aftermarket rubber that can harden or crack early under heat and fuel vapour exposure.

Current genuine supply is typically the latest suffix 571080/K, which supersedes older 571080/G in dealer assignment listings. 
For best results, inspect the mating surfaces, ensure the clamp is healthy, and verify your old part number/suffix before ordering if your bike has prior modifications.

Key Features 

• Genuine Royal Enfield Manifold Inlet (Intake Manifold)

• OEM-style airtight seal between throttle body and cylinder head

• Helps fix vacuum/air leak issues (high idle, jerks, hesitation, lean symptoms)

• Latest part commonly supplied as 571080/K (replacement for 571080/G) 

• Correct fitment geometry for EFI throttle body alignment

• Heat- and fuel-vapour resistant material for long service life

• Recommended replacement during throttle body service / injector cleaning intervals

• Improves overall drivability and reduces repeat tuning complaints

Compatibility Table 

Variants

• 571080/K (Latest / Current supply) – recommended (supersedes older suffix) 

• 571080/G (Older / Superseded) – mention only if you physically have this suffix in stock; otherwise supply /K 

FAQs 

1) What is 571080 used for?
It is the manifold inlet / intake manifold in the EFI intake path (catalogued as “Manifold-Inlet”) connecting throttle body to the head. 

2) How do I know my manifold is failing?
Typical signs: high idle, rpm hunting, hesitation, lean running, popping/backfire, or visible cracks/hard rubber.

3) Is 571080/K the correct part if my old one is 571080/G?
Yes—dealer assignment listings show 571080/G replaced by 571080/K. 

4) Do I need any additional parts?
If your clamp or sealing surfaces are worn, replace the clamp/fasteners as needed. Also inspect nearby O-rings/insulators during installation.

5) Will it fit Classic 350 / Bullet 350?
No confirmed evidence here—do not order for 350s unless you match your existing part number exactly.