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CSP Breather Box polished

CSP Breather Box
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CSP oil filler-breather box

Without a good oil breather, performance engines suffer from both oil leaks as well as performance loss. The brand new CSP Breather Box provides the perfect remedy and at the same time offers a number of plus points. The stylish and compact design has a volume of almost a litre, and allows for the use of most of the crossbar carburettor linkages that are available on the market. Oil filling is also significantly easier due to the position of the filler cap. The separation plates fitted inside the breather box guarantee separation of air and oil and a rapid return path into the engine. As the box is securely attached to the engine there is no tedious unfastening of hoses when the engine has to be removed from the vehicle. Welded-on threaded bushings (3/8-NPT on sides, 3/4-NPT on top) enable the use of hose nipples or AN aero screw fittings. Additional venting for the valve covers are provided, as well as the air filter connector for extraction of the cleaned air. For engines without an air filter it is simple to mount a K&N breather filter onto this connector. Manufactured in aluminium, the CSP Breather Box is attractive in terms of its low weight and shape.

An overview of the features :

  • particularly light, but nevertheless solid, design
  • large volume of approx 1 litre
  • significantly eases engine oil filling
  • can be supplied for DC and AC generator stands
  • secure seating prevents any unintentional loosening of the box
  • connector options for the valve covers and feedback via the air filter
  • integrated separation plate for oil-air separation and rapid return path into the engine
  • an O-ring guarantees an oil-tight connection to the generator stand
  • welded-on threaded fittings in 3/8-NPT and 3/4-NPT for a wide choice of connectors

p65warning Warning: Using this product can expose you to chemicals which is known to the state of California to cause cancer and cause birth defects and/or other reproductive harm. For more information go to
Banjo Bolt CSP
for oil filler w/CSP tool
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Adapter 3/4-NPT to M18.15
clear anodized aluminium
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Banjo Bolt
Fits banjo fitting no
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Banjo Fitting
for 14-16mm hose
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Hose Connector
3/8-NPT for 13mm hose (1/2'')
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Flare Pipe Plug 3/8-NPT
show details