I was cruising the web looking for the best deal on the BHAF. While looking at the Fleetguard number AH19037 it crossed referenced to AH19004 for "Marine Applications". Dimensions are exactly the same. Now, my brain tells me that there's far less dust and what-not on the water, but is a "marine rated" filter better or worse? Wondering...because the price for the AH19037 was $41.xx and the price for the marine rated AH19004 was $14.xx!! Anybody know what the difference is? The price certainly is nice.

 

Are you sure on that part number.

The Marine BHAF that is the same size as the AH19037 (non marine) should be part number AH19002, and should be 3X the price of the non marine.

The 004 one is a bit shorter than the 002 one.

IMHO, your dust theory is spot on.


phox

 

Well, the part numbers are straight from the Fleetguard website. Here's what they say:

Part: AH19037
Manufacturer: FLEETGUARD
Part Type: Air Housing, Disposable
End Connection ID: 101.6 mm (4 in)
End Connection Height: 35.052 mm (1.38 in)
Largest Housing OD: 266.7 mm (10.5 in)
Overall Height: 301.75 mm (11.88 in)
Additional Information:
DONALDSON ECB105006
For Marine applications, use
AH19004 For Marine Applications, use AH19004
Product Comment
Disposable Housing Unit

Part: AH19004
Manufacturer: FLEETGUARD
Part Type: Air Housing
End Connection ID: 101.6 mm (4 in)
End Connection Height: 35.052 mm (1.38 in)
Largest Housing OD: 266.7 mm (10.5 in)
Overall Height: 301.75 mm (11.88 in)
Additional Information:
CUMMINS 3924541 DONALDSON ECB105013
For Non-Marine applications, use
AH19037 For Marine Applications, use AH19004
Product Comment
Marine applied Cummins B & C engines

Part: AH19002
Manufacturer: FLEETGUARD
Part Type: Air Housing
End Connection ID: 101.6 mm (4 in)
End Connection Height: 35.052 mm (1.38 in)
Largest Housing OD: 215.9 mm (8.5 in)
Overall Height: 314.45 mm (12.38 in)
Additional Information:
CUMMINS 3924540 DONALDSON ECB085024
For Non-Marine applications, use
AH1141 For Marine Applications, Use AH19002
Product Comment
Marine applied Cummins B & C engines.

So this says the AH19002 is a different size than AH19037 and AH19004.

Prices from fleetguardfilters.com are:
AH19037: $41.xx
AH19004: $14.xx
AH19002: $67.xx
So you're right about the AH19002 being more!

But my original question still stands: what's the difference between a marine-rated filter and a non-marine-rated filter?

 

All I know is they are slightly different filter media, and the Marine ones have the wire mesh on the inside as well as the outside.

I think someone posted flow rates once, and the Marine ones flowed better, probably due to them not having to deal with fine dust.


phox

 

The marine probibly filters down to 5 microns where the auto version filter to 2.5 microns.

I'd go with the extra flow and make more power. Like i said on the air filter test where they said the K&N was the worst, if the filter lets half the 3-4 micron dust pass through it would be like rubbing 10,000 grit sand paper on the cylinder walls. It would take 100 years of constant rubbing to make any noticable difference.

FINE DUST ENTERING THE ENGINE WILL NOT HURT IT WHAT SO EVER.

 

I talked to Fleetguard in 2002 regarding both these filters. If you search from back then, you will find the post. The media is the same. The only difference if I remember correctly was the 1/2 inch or so in size difference. The mesh is there in case the media does get wet. If it collapses, it will be stopped by the wire mesh.

Mike

 

I think that price should be 114.00 I called most of the local fleetguard dealers, and they were all over 100 bucks for the marine version