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#4656210999
Black Valve Cover Shielded Breather, 1-1/2 Inch
- Breather features a clamp-on shielded design with a black finish
- Filters are designed to be fully washable and reusable
- It clamps to a 1-1/2" O.D. tube and has a 3-1/8” base
$16.99
/each
In Stock
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Product Summary
1.50" Hole Diameter, Clamp-on Attachment Style, Black
- Breather features a clamp-on shielded design with a black finish
- Filters are designed to be fully washable and reusable
- It clamps to a 1-1/2" O.D. tube and has a 3-1/8” base
- Overall diameter of breather without shield is 2-7/8” and overall diameter of breather with shield is 3-1/4”
Key Specs
| MFG. Part # | 4656210999 |
| Brand | Speedway Motors |
| Attachment Style | Clamp-on |
| Valve Cover Hole Size | 1.5" |
Need To Know
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Return PolicySpeedway Motors 4656210999 Details
Speedway Motors 4656210999 Details
- Clamps to a 1-1/2" O.D. tube
- Black finish
- Overall height of the breather and base is 3-1/8”
- Overall diameter of breather without shield is 2-7/8”
- Overall diameter of breather with shield is 3-1/4”
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
Speedway Motors 4656210999 Specifications
Speedway Motors 4656210999 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 4656210999 |
| Brand | Speedway Motors |
| Attachment Style | Clamp-on |
| Valve Cover Hole Size | 1.5" |
| GENERAL | |
| Hole Diameter | 1.50" |
| Sold in Quantity | Each |
| Flange I.D. | 1.50" |
| Color | Black |
| Shielded | Yes |
Ratings & Reviews
4.8
11 Reviews
Customers strongly recommend this product for its quality, good fit, and practicality. It's an excellent upgrade over standard filters, enhancing engines with an attractive matte black finish. The filter is praised for its stability, staying in place well without sliding or turning, which is particularly useful on the racetrack. While some users have noted the plastic separating from the filter over time, they've continued to purchase due to the product's superior usability and performance. The breathability of the filter is also commended, although suggestions were made for an internal stop point to prevent accidental blocking. Many found it a perfect replacement for clogged breathers, with one customer even linking it to their winning a race. It stands out amongst competitors’ products for its affordability and exceptional performance in asphalt racing.
Ratings & Reviews
4.8
11 Reviews
Customers strongly recommend this product for its quality, good fit, and practicality. It's an excellent upgrade over standard filters, enhancing engines with an attractive matte black finish. The filter is praised for its stability, staying in place well without sliding or turning, which is particularly useful on the racetrack. While some users have noted the plastic separating from the filter over time, they've continued to purchase due to the product's superior usability and performance. The breathability of the filter is also commended, although suggestions were made for an internal stop point to prevent accidental blocking. Many found it a perfect replacement for clogged breathers, with one customer even linking it to their winning a race. It stands out amongst competitors’ products for its affordability and exceptional performance in asphalt racing.
4.8
11 reviews
5
10
4
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3
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2
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Most Liked Positive Review
5.0
Great quality.
I have a 1976 AMC 304 with a oil vent/filler tube. Not sure about other applications, but with mine it would be possible to push this cap down so far as to block the venting (tube up against the inside top of cap. I cut and place inside the cap a very breathable fiber material (from an unused scrubbing pad) into the top and measured it uncompressed depth and then marked the filler tube so that I only pushed it down far enough to contact that fiber material so that it could still vent. I might be good if the product had a stop point inside so that accidental blocking of the vent could not occur.
Most Liked Negative Review
3.0
Have bought before
Plastic separates from filter eventually
Filter by Ratings
Very nice quality
5.0
a year ago
8
Montana
Verified
Put them on my imca modified, they work well
Would Recommend
Nice piece!
5.0
2 years ago
SBR
St Paul MN
Verified
Nice upgrade over the standard filter. We dress our engines out with black accessories so this is great.
Would Recommend
Have bought before
3.0
4 years ago
Ricky Bobby
Wisconsin
Verified
Plastic separates from filter eventually
Satisfied customer
5.0
4 years ago
JV
Roswell New Mexico
Verified
Fit good
Would Recommend
Good breathers.
5.0
4 years ago
Wilder Motorsports
Sparks, Nv
Verified
These stay in place nice. I've had others that would slide down, or turn, which bugged me. I worried they might come off. These haven't done that at all, which is nice because there are plenty of better things to focus on at the track.
Would Recommend
great affordable product
5.0
4 years ago
sven
wyoming
Verified
nice matte black finish
Great quality.
5.0
6 years ago
MarkC
South Lake Tahoe, CA
Verified
I have a 1976 AMC 304 with a oil vent/filler tube. Not sure about other applications, but with mine it would be possible to push this cap down so far as to block the venting (tube up against the inside top of cap. I cut and place inside the cap a very breathable fiber material (from an unused scrubbing pad) into the top and measured it uncompressed depth and then marked the filler tube so that I only pushed it down far enough to contact that fiber material so that it could still vent. I might be good if the product had a stop point inside so that accidental blocking of the vent could not occur.
Would Recommend
Great product and seller
5.0
7 years ago
H gill
Fl
Verified
Great quality
Would Recommend
Just the part I was looking for.
5.0
8 years ago
Double D
Sheboygan Falls WI
Verified
Had some breathers that were clogged up pretty bad. These breathers were the perfect replacement. And by the way maybe just coincidence but I won the next race.
Would Recommend

I definitely recommend these on asphalt racing
5.0
8 years ago
Mikey
Nashville tn
Verified
I've got 5 race cars all are v8 and all have these on them !
Would Recommend
Showing 10 of 11 reviews
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