Valve Covers and Accessories - Breathers

1-1/2" Clamp-On Filtered Breather w/Shield
Your Price:
$21.99

1-1/2" Clamp-On Filtered Breather w/Shield

620-70156

1-1/2" Clamp-On Filtered Breather w/Shield (each)

Hardin’s breathers feature maximum flow and protection from airborne elements. They are used on most Hardin Marine valve cover systems. These breathers are easily washable for service.


1-1/2" Clamp-On Valve Cover Breather - No Shield
Your Price:
$19.99

1-1/2" Clamp-On Valve Cover Breather - No Shield

620-70153

1-1/2" Clamp-On Valve Cover Breather - No Shield (Each)

These breathers feature maximum flow and protection from airborne elements.  They are used on most Hardin Marine valve cover systems.  The breather is washable providing for easy maintenance.


1-3/8" Clamp-On Valve Cover Breather - No Shield
Your Price:
$19.99

1-3/8" Clamp-On Valve Cover Breather - No Shield

620-70154

1-3/8" Clamp-On Valve Cover Breather - No Shield (Each)

These breathers feature maximum flow and protection from airborne elements. They are used on most Hardin Marine valve cover systems. The breather is washable providing for easy maintenance.


1-3/8" Filtered Breather w/Shield
Your Price:
$21.99

1-3/8" Filtered Breather w/Shield

620-70155

1-3/8" Filtered Breather w/Shield (each)

Hardin’s breathers feature maximum flow and protection from airborne elements. They are used on most Hardin Marine valve cover systems. These breathers are easily washable for service.


Push-In Filtered Valve Cover Breather - No Shield
Your Price:
$19.99

Push-In Filtered Valve Cover Breather - No Shield

620-70151

Push-In Filtered Valve Cover Breather - No Shield (Each)

These breathers feature maximum flow and protection from airborne elements. They are used on most Hardin Marine valve cover systems. The breather is washable providing for easy maintenance. Fits 1.25" hole.


Push-In Filtered Valve Cover Breather With Chrome Shield
Your Price:
$21.99

Push-In Filtered Valve Cover Breather With Chrome Shield

620-70152

Push-In Filtered Valve Cover Breather With Chrome Shield (Each)

These breathers feature maximum flow and protection from airborne elements.  They are used on most Hardin Marine valve cover systems.  The breather is washable providing for easy maintenance. Fits 1-1/4" hole.


Push In Chrome Breather, 1" Neck
Your Price:
$9.99

Push In Chrome Breather, 1" Neck

620-70150

Push In Chrome Breather, 1" Neck

Push-In Breather with Billet Top, No Shield
Your Price:
$34.99

Push-In Breather with Billet Top, No Shield

620-70166

Push-In Breather with Billet Top, No Shield

Hardin’s breathers featuremaximum flow and protection from airborne elements. They are used on most HardinMarine valve cover systems. These breathers are easily washable for service.

  • 1" grommet
  • 1.75" tall
  • 2.5" outer diameter


Push-In Breather With Vent
Your Price:
$15.99

Push-In Breather With Vent

620-70160

Push-In Breather With Vent

These popular breathers are used when you would like to vent the crankcase to another location such as the flame arrestor or a vac-u-pan. This unit is used on many MerCruiser hi-performance applications. The push in has a 1" hole and a 5/8" vent hook-up.


Valve Cover Breather, Angle Mount
Your Price:
$56.99

Valve Cover Breather, Angle Mount

421-04-1260

Valve Cover Breather

To view and download the PDF drawing CLICK HERE

Polished angled mounting flange valve cover breather. Used on 04-1240. (SOLD EACH)

Valve Cover Breather, Flat Mount
Your Price:
$56.99

Valve Cover Breather, Flat Mount

421-04-1265

Valve Cover Breather

To view and download the PDF drawing CLICK HERE

Polished 90-degree mounting flange valve cover breather. Used on 04-1255. (SOLD EACH)

Valve Cover Puke Tank Breather
Your Price:
$63.99

Valve Cover Puke Tank Breather

421-04-1270

Breather

To view and download the PDF drawing CLICK HERE

Valve Cover Puke Tank Breather 1 5/16-12 UN Thread, fits -16 male union with O-ring or 1" NPT (SOLD EACH)

Billet Aluminum Valve Cover Breather
Your Price:
$69.99

Billet Aluminum Valve Cover Breather

620-45759

Billet Aluminum Valve Cover Breather

These billet aluminum valve cover breathers are so nice they could be jewelry for your engine. Each breather is precision machined from solid billet aluminum. They are height matched with dense foam packing and work well to keep blow by to a minimum. Valve cover breathers contain an effective filter which traps oil vapor and prevents engine compartment contamination. Universal design fits any 1" diameter valve cover hole. Sold Each.

 

  • 2.25" bolt spread.
  • 1.75" x 3.0" base.
  • 4.25" tall.

 


4" Tall Aluminum Valve Cover Breather
Your Price:
$74.99

4" Tall Aluminum Valve Cover Breather

620-45757

4" Tall Aluminum Valve Cover Breather (Each)

  • 4" Height
  • 3-5/16" Base Length
  • 1-7/8" Base Width
  • 2-1/8" Bolt Hole center to center.

These breathers are designed to mount to the top of the valve cover with no bolts exposed. Each breather is highly polished.


Burn Down Valve Cover Breather
Your Price:
$84.99

Burn Down Valve Cover Breather

620-45758

Burn Down Valve Cover Breather (Each)

The baffled burn down style breathers got their name because they aretraditionally used to route crankcase pressure to the exhaust system.Today they are commonly used to route to a puke tank. These breathersfeature a -16 AN thread for ease of plumbing. Fittings are sold separately.

 

  • 3.875" bolt spread.
  • 1.75" base width.
  • 4.5" tall.

 


Extreme Aluminum Valve Cover Breather
Your Price:
$69.99

Extreme Aluminum Valve Cover Breather

620-45760

  • Polished Cast Aluminum 
  • Dual internal baffles Breather is sloped to match the styling of the valve cover 
  • Base measures 3-1/4" Long X 2" Wide with 2-3/8 Bolt Center to Center 
  • Breather measures 4" tall. 
  • Breather opening measures 1-3/4" Long x 1-1/4 Wide

Short Aluminum Valve Cover Breather - 2-3/4" Tall
Your Price:
$74.99

Short Aluminum Valve Cover Breather - 2-3/4" Tall

620-45756

Short Aluminum Valve Cover Breather - 2-3/4" Tall (Each)

  • 2-3/4" Height
  • 3-3/8" Base Length
  • 1-7/8" Base Width
  • 2-1/8" Bolt Hole Center to Center

These breathers are designed to mount to the top of the valve cover with no bolts exposed. Each breather is highly polished.


Breather Splash Cover
Your Price:
$19.95

Breather Splash Cover

620-45762

Breather Splash Cover, fits breathers with mounting center to center of 2" to 2.5".


Burn Down Valve Cover Breather
Your Price:
$5.99

Replacement Burn Down Valve Cover Breather Gasket

620-45758G

Burn Down Valve Cover Breather Gasket (Each)

Replacement Gasket for Burn Down Breather

  • 3.875" bolt spread.
  • 1.75" base width.

 


4" Tall Aluminum Valve Cover Breather
Your Price:
$4.95

Replacement Gasket for Aluminum Valve Cover Breather

620-45754

Replacement gasket for breather models 620-45756 and 620-45757.