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Engine Breather Oil Collector

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Engine Breather Oil Collector
Product may vary from photo(s).


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J&P Part: 431-335

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Engine Breather Oil Collector

• Constructed of polished billet aluminum with an internal baffle and includes a breather filter

• Allows you to collect the oil and drain it when necessary

• Solves the long standing problem of the oily mess left by the breather, no matter where you put it you end up with a mess

• Valuable little item for all hig high performance and stroker motors prone to high volumes of blow by

• Must have for all racers

Made In The USA This product was proudly made in the USA

Product Specs

Diameter: 1-1/2″

Finish: Polished

Height: 5″

Length: 2-3/4″

Material: Aluminum

Sold in Units: Each

Style: Polished Billet Aluminum


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Click (+) to view all compatible models

Harley-Davidson® Models

Dyna Low Rider Convertible FXDS-CONV : 1994–1999
Dyna Low Rider FXDL : 1993–1999
Dyna Super Glide FXD : 1995–1999
Dyna Super Glide Sport FXDX : 1999
Dyna Wide Glide FXDWG : 1993–1999
Softail Bad Boy FXSTSB : 1995–1997
Softail Custom FXSTC : 1993–1998
Softail Fat Boy FLSTF : 1993–1999
Softail Heritage Classic FLSTC : 1993–1999
Softail Heritage Springer FLSTS : 1997–1999
Softail Night Train FXSTB : 1999
Softail Nostalgia FLSTN : 1993–1996
Softail Springer FXSTS : 1993–1999
Softail Standard FXST : 1999
Sportster 1200 Custom XLH1200C : 1996–1999
Sportster 1200 Sport XLH1200S : 1996–1999
Sportster 1200 Standard XLH1200 : 1993–1999
Sportster 883 Custom XLH883C : 1999
Sportster 883 Deluxe XLH883 : 1993–1995
Sportster 883 Hugger XLH883 : 1993–1999
Sportster 883 Standard XLH883 : 1993–1999
Super Glide FXR : 1993–1994
Super Glide FXR2 : 1999
Super Glide FXR3 : 1999
Super Glide Low Rider Convertible FXRS-CONV : 1993
Super Glide Low Rider Custom FXLR : 1993–1994
Super Glide Low Rider Sport FXRS-SP : 1993
Super Glide Police FXRP : 1993–1994
Touring Electra Glide Classic EFI FLHTCI : 1996–1999
Touring Electra Glide Classic FLHTC : 1993–1999
Touring Electra Glide Sport FLHS : 1993
Touring Electra Glide Standard FLHT : 1995–1999
Touring Electra Glide Ultra Classic EFI FLHTCUI : 1995–1999
Touring Electra Glide Ultra Classic FLHTCU : 1993–1998
Touring Road Glide EFI FLTRI : 1998–1999
Touring Road Glide FLTR : 1998–1999
Touring Road King Classic EFI FLHRCI : 1998–1999
Touring Road King EFI FLHRI : 1996–1999
Touring Road King FLHR : 1994–1999
Touring Tour Glide Ultra Classic EFI FLTCUI : 1996
Touring Tour Glide Ultra Classic FLTCU : 1993–1995

Customer Reviews

Overall Rating:
4/5 based on 14 ratings

5 by

This fits nicely on machine and took care of my issue's with blow by mist when running bike hard.

5 by

Fast service

4 by

Looks good and is built sturdy.

5 by

I have had this engine breather oil collector on my 1990 FLSTC for two years. Best money spent on my bike. One recommendation, would be helpful if drain plug had standard threads to install a small valve with drain hose. Otherwise an excellent product.

5 by

Excellent. Recommend for anyone running a breather and dripping all over. Now the blow by goes into easy drain can attached to breather. No more drip and great for the crankcase vent.

3 by

Looks great on my bike. Will let you know later how it preforms. Seems small, could be a little larger.

5 by

great part, solved my breather problems, fair price for what you are getting

4 by

clamp is very tight on canister and the screen inside broke loose, but it still works ok.

4 by

This was very attractive, but the crimp band on the breather filter cocked the filter to the side. I replaced it with a small SS screw type hose clamp. I installed it with braided SS hose and AN look anodized red and blue screw clamps through an aluminum umbrella PCV valve. (Almost looks like a nitrous bottle plumbed in.) My gasket oil leaks have gone away as well as the oil mist drips from the breather. One surprise, most of the accumulation is water/gas mix from blowby, not oil. I may plumb the top into the air filter fitting now that it isn't going to load-up the filter element.

4 by

Good quality construction. Easy to drain. Smaller then appears in magazine and tucks nicley to a number of places on bike. Once mounted part looks like it belongs. Adds character. All mounting clamps and hoses need to be purchased separately. Gases and oil all go into this unit instead of being directed into the carb. No more burning waste in your cylinders. I would believe it helps engine perform a little better. I also noticed the bike has been running cooler. Well worth the cash. One downfall. Unit collects about a 1/2 ounce of water vapor on engine startup until motor is warm. You will be draining more water then oil. It would also be nice to have a rain deflector around filter element.

3 by

The collector tank for the oil looks a lot bigger in the picture. When it showed up I was kinda peaved at how small it was for the price I paid. But it collects the breather oil/mist just fine.

5 by

Recently I purchased a 431-335 oil collector kit. I have a 1988 Harley 883 that has been modified to 89 C.I. (approx. 1450cc). It produces 86hsp at 76 ft lbs torque at 6250rpm. We were having an oil blow-by problem coming from the crankcase. At high speed it would oil down the rear tire. After purchasing this kit it has taken care of the problem. We will be running at Moroso Dragway in West Palm Beach in the near future. I will let you know the out come. Thanks

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