Moturo 50cc unrestricted intake manifold for 4T GY6

Moturo open intake manifold for 4T GY6 50cc 139QMB/QMA

The Moturo intake manifold for your 4T GY6 50cc scooter engine (139QMB, 139QMA) — the connecting piece between the carburetor and cylinder head that typically cracks over time or due to fuel leaks. Open design, ready for installation.

The manifold directs the fuel-air mixture from the carburetor to the intake port of the cylinder head. The hole pattern and flange dimensions follow the original spare part design of the 139QMB/QMA engine series, as used in AGM GMX 450 and GMX 500 as well as identical 50cc four-stroke scooters.

Replacement takes about half an hour with a hex key set and socket wrench for the fastening nut.

Intake manifold for your scooter, made by Moturo.

Performance · Material · Specifications

• Open design for 4T GY6 50cc engines
• Hole pattern for the 139Q MB/QMA engine series
• Includes clamp and O-ring

Important notes – please read

Original spare part design, no separate ABE (general operating permit) required. Wear part, replacement does not require registration. Before ordering, compare the flange pattern and inner diameter with the photo on the product page.

Tools & time required

• Hex key set in standard sizes
• Socket wrench for the fastening nut
• Screwdriver for the clamp
• About half an hour for an experienced mechanic

Scope of delivery

1 × intake manifold open, 1 × clamp, 1 × O-ring. Not included: carburetor, tools, sealing compound.

Frequently asked questions

Does the manifold also fit 2T engines?
No, exclusively for 4T GY6 50cc 139QMB/QMA.

Do I need a TÜV registration?
No. Wear part in original spare part design.

Which carburetor fits the open manifold?
Standard GY6 carburetor of the 139QMB/QMA series; compare the flange pattern with the photo on the product page before ordering.