Battery Vent Cap Adapter, Model M27x3-SIA


Adapter Features:

  • Adapts an M27-3 threaded hole to fit all 1/4-turn bayonet vent caps
  • Adapts a #4000600 level indicator to fit into an M27-3 threaded battery vent hole
  • Screw-in style with rubber seal
  • Made in the USA

To buy this battery vent cap adapter, enter a quantity in the drop-down box below and then select the Add to cart button. Then select the Checkout button at the top left side of the page.

We give a price break for 250 or more. Please contact us for more info.

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Part#: M27x3-SIA Category:


This battery vent adapter was made to fit our #4000600 Battery Water Level Indicator on a Varta RL 840 battery (made by Enersys). But this adapter will fit any battery that has a vent hole with M27-3 threads. In addition, this adapter lets you fit all 1/4-turn bayonet-style vent caps on your battery.

Also, we make more adapters that can be viewed by choosing one of these links.
#4D-8D-PIA Battery Vent Adapter
#4D-8D-SIA Battery Vent Adapter
#1050VCA Battery Vent Adapter
#M22X1.5 Battery Vent Adapter

Additional information

Weight.02 lbs
Dimensions1.37 × 1.37 × .86 in

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