Here's the cross reference for the Wix 46637 filter. Found the Baldwin brand at a local parts warehouse for $19.99. Said they were over stocked. The Baldwin number is PA2818.

<TABLE cellSpacing=0 align=center border=1 valign="middle"><TBODY><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title=ACDELCO align=left>ACDELCO</TD><TD class=appcover3 title=A1474C align=left>A1474C</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title="AIR REFINER" align=left>AIR REFINER</TD><TD class=appcover3 title=ARM08-5011 align=left>ARM08-5011</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title="BALDWIN FILTERS" align=left>BALDWIN FILTERS</TD><TD class=appcover3 title=PA2818 align=left>PA2818</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title="BIG A" align=left>BIG A</TD><TD class=appcover3 title=94637 align=left>94637</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title=CATERPILLAR align=left>CATERPILLAR</TD><TD class=appcover3 title=3I0003 align=left>3I0003</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title=CARQUEST align=left>CARQUEST</TD><TD class=appcover3 title=88637 align=left>88637</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title=CUMMINS align=left>CUMMINS</TD><TD class=appcover3 title=2912986 align=left>2912986</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title=CUMMINS align=left>CUMMINS</TD><TD class=appcover3 title=3912020 align=left>3912020</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title=DONALDSON align=left>DONALDSON</TD><TD class=appcover3 title=B085011 align=left>B085011</TD><TD class=appcover3 title=H align=left>H</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title=DONALDSON align=left>DONALDSON</TD><TD class=appcover3 title=ECBO85011 align=left>ECBO85011</TD><TD class=appcover3 title=H align=left>H</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title=DONALDSON align=left>DONALDSON</TD><TD class=appcover3 title=ECB085011 align=left>ECB085011</TD><TD class=appcover3 title=H align=left>H</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title=FLEETGUARD align=left>FLEETGUARD</TD><TD class=appcover3 title=AH1141 align=left>AH1141</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title=FLEETRITE align=left>FLEETRITE</TD><TD class=appcover3 title=AHR81141 align=left>AHR81141</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title=FRAM align=left>FRAM</TD><TD class=appcover3 title=CA6818 align=left>CA6818</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title=GFF align=left>GFF</TD><TD class=appcover3 title=AF359214 align=left>AF359214</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title="GENERAL MOTORS CORP." align=left>GENERAL MOTORS CORP.</TD><TD class=appcover3 title=25177209 align=left>25177209</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title="HASTINGS PREMIUM FILTERS" align=left>HASTINGS PREMIUM FILTERS</TD><TD class=appcover3 title=AF2329 align=left>AF2329</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title=HERCULES align=left>HERCULES</TD><TD class=appcover3 title=B085008 align=left>B085008</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#dcdcdc><TD class=appcover3 align=left></TD><TD class=appcover3 title=KRALINATOR align=left>KRALINATOR</TD><TD class=appcover3 title=LA1458 align=left>LA1458</TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD><TD class=appcover3 align=left></TD></TR><TR class=appcover3 bgColor=#f5f5f5><TD class=appcover3 align=left></TD><TD class=appcover3 title=LUBER-FINER align=left>LUBER-FINER</TD><TD class=appcover3 title=LAF2533 align=left>LAF2533</TD></TR></TBODY></TABLE>

 

Is it actually the same length? I got the feeling the Baldwins were about a half-inch longer.

Things are so close-fitting now, I'm not sure I can make that one fit if it's any longer.

Pop

 

I don't know. I've never seen the Wix and I won't pick up the Baldwin until tomorrow. How long is the Wix?

 

FleetFilter.com sells the Duralite 546637 (DC252WA) for around $20. Filter and housong length is 11.5 inches, diameter is 8.5 inches. Add about 1.25 inches for the collar the 4" pipe fits into.

 

This should be the same as a NAPA 1734 cover's most the psd's till the new element type in the new trucks.

Bob

 

I think you mean the flat panel filter that comes stock.
They are talking about an aftermarket filter/intake setup that uses the NAPA 6637 filter.

 

The Baldwin is 12 3/8" or about 7/8" longer that the 6637.

 

I couldn't use that cause now the 6637 barely fits and my intake flex hose has to touch the intercoller line, but it has the heat shield on it and stays cool to the touch.

 

I just called Carquest and am picking my filter up here in an hour or two. I'll take pictures and let you know how it fits.

 

By all means post back with the lengths and costs of any filters you get. Pics would be nice too.

 

Sorry for reviving an old thread, but HTML format was messed up. I converted it back to a simple txt format so it's readable.

Similar list can be found on this website: https://www.airfilter-crossreference...vert/NAPA/6637

ACDELCO A1474C
AIR REFINER ARM-08-5011
BALDWIN FILTERS PA2818
BIG A 94637
CATERPILLAR 3I0003
CARQUEST 88637
CUMMINS 2912986
CUMMINS 3912020
DONALDSON B085011 H
DONALDSON ECBO85011 H
DONALDSON ECB085011 H
FLEETGUARD AH1141
FLEETRITE AHR-81141
FRAM CA6818
GFF AF359214
GENERAL MOTORS CORP. 25177209
HASTINGS PREMIUM FILTERS AF2329
HERCULES B085008
KRALINATOR LA1458
LUBER-FINER LAF2533