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M6*85, Pair Flange Bolt for 139QMB

M6x85 Flange Bolt Pair – 139QMB GY50 50cc Engine

$4.40
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M6*85, Pair Flange Bolt for 139QMB
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  • M6*85, Pair Flange Bolt for 139QMB
M6x85 Flange Bolt Pair – 139QMB GY50 50cc Engine

M6x85 Flange Bolt Pair – 139QMB GY50 50cc Engine

$4.40
Part number 1100-1334

Check dimensions and compatibility before ordering.
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Long 7mm double-ended cylinder stud for securing the cylinder head and cylinder to the engine case on most vintage Vespa Largeframe and Smallframe scooters from the 1960s and 70s. Threaded on both ends with a smooth shank in the center. You’ll need four studs per engine, plus 7mm nuts and washers to complete the job.

Does NOT fit GS, SS, handlebar-style Rally, or P200 models — those require 8mm studs.

Features

  • Long double-ended stud, threaded on both ends
  • 7mm diameter — correct for Largeframe and Primavera/ET3 engines
  • Secures cylinder head and cylinder to engine case
  • Sold individually — four required per engine
  • Use with matching 7mm nuts and washers (sold separately)

Specifications

  • Thread diameter: 7mm
  • Length: ~4.75"
  • Configuration: Double-ended stud (threaded both ends)
  • Material: Steel
  • Sold: Individually (4 required per set)

Model Fitment

Series Models
Vespa Largeframe (1960s–70s) VBA, VBB, VBC 150 Super, VNA, VNB, VNC 125 Super, VLA GL150, VNL GT/GTR, VLB Sprint, V9B 100 Sport
Vespa Smallframe VMA Primavera, VMB ET3 125
Vespa P/PX Series VLX P/PX 150, VNX P/PX 125


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