GY6 Nut (M8, Set of 4)

GY6 Nut for 125cc to 169cc Engines

This GY6 nut suits a variety of 125cc, 150cc, and 169cc engines. It is made for engine codes such as 157QMJ, 1P57QMJ, and several others. As one of the GY6 scooter parts you may need, it holds components firmly in position. Keeping parts secure helps the engine run well and stay dependable during use.

Compatibility Overview

This nut works with a range of engines built on the 157QMJ platform. Typical engine codes include 161QMK, 152QMI, YN1P57QMJ, and a number of others. When your engine code has "QM" or "FM" in it, this nut is likely a match for your scooter. Checking compatibility first makes maintenance and repairs go more smoothly.

Dimensions and Design

The nut has an M8x1.25 thread, an outer diameter of 16mm, and a height of 7.6mm. These measurements give it a correct fit for its intended use, so engine components can be assembled and serviced without trouble. Correctly sized parts contribute to dependable engine operation and a longer service life.

Specifications

• Thread Size: M8x1.25
• Overall Outer Diameter: 16mm
• Height: 7.6mm
• Fits: GY6 150cc (157QMJ) and 125cc GY6 engines, engine codes 157QMJ, 161QMK, 152QMI, 154FMI and similar QM/FM codes

Fitment

Fits:

• GY6 150cc (157QMJ) cylinder head (M8 nut, set of 4)
• GY6 125cc and 150cc engines with codes 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A, and other QMJ, QMK, QMI models
• Other GY6 engines whose code includes QM or FM (also used elsewhere on the bike)

How to choose: Make sure the stud on your engine uses an M8x1.25 thread, and compare the engine code stamped on the case with the list above.

Where it goes: part #11 on the cylinder head diagram for the GY6 150cc (157QMJ).

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