6BTA 5.9 Marine EnviroVent CCV Kit
SMX EnviroVent CCV Kit 4BT & 6BT Series Below 250HP (3″ Air Cleaner)
not rated $394.00 – $400.00 Select options This product has multiple variants. The options may be chosen on the product page
SMX Dual Valve Cover EnviroVent CCV Kit for 6BTA 5.9 Series Engines 250HP and up (4" Air Cleaner)

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SMX Dual Valve Cover EnviroVent CCV Kit for 6BTA 5.9 Series Engines 250HP and up (4″ Air Cleaner)
not rated $825.00 – $1,595.00 Select options This product has multiple variants. The options may be chosen on the product page
6BTA 5.9 Marine EnviroVent CCV Kit
SMX EnviroVent CCV Kit for 6BTA 5.9 Series Engines 250HP and up (4″ Air Cleaner)
not rated $450.00 – $1,035.00 Select options This product has multiple variants. The options may be chosen on the product page
6BTA 5.9 Marine EnviroVent CCV Kit
SMX EnviroVent CCV Kit 6BTA Series for V-Drive Setups or other Unique Applications
SMX EnviroVent CCV Kit 6BTA Series for V-Drive Setups or other Unique Applications
not rated $450.00

In stock

Engine Blow-By Condition

For engines that are experiencing heavy blow-by AND you have enough vertical clearance above the #6 valve cover, then you can add an extension that will greatly mitigate the engine blow-by. Typical length of the valve cover extension is between 4″ – 8″.

Extension Kit Information

If you have chosen to add an extension kit to your EnviroVent product to better mitigate your engine’s blow-by condition, please enter the length in inches that you have available above the #6 valve cover.

6CTA 8.3 & QSL Marine EnviroVent CCV Kit
SMX EnviroVent CCV Kit 6CTA 8.3 & QSL 9 & QSC
not rated $400.00 – $415.00 Select options This product has multiple variants. The options may be chosen on the product page
QSB 5.9 Marine EnviroVent CCV Kit
SMX EnviroVent CCV Kit QSB 5.9 Series
not rated $400.00

In stock

EnviroVent CCV Kit for Yanmar 4LHA
SMX EnviroVent CCV Kit for Yanmar 4LHA
not rated $425.00

In stock

Cummins Marine 6CTA 8.3 CCV Breather (3928772)
Cummins Marine 6CTA 8.3 CCV Breather (3928772)
not rated $275.00

Only 2 left in stock

Cummins Marine QSC / QSL CCV Breather (3964092)
Cummins Marine QSC / QSL CCV Breather (4935078, 3964093)
not rated $105.00

In stock

EnviroVent CCV Replacement Breather Filter
SMX EnviroVent CCV Replacement Breather Filter
not rated $35.00 – $55.00 Select options This product has multiple variants. The options may be chosen on the product page