BF7966 (6 PACK) BALDWIN FUEL FILTER FF5421 Cummins QSB 6.7L Diesel a080

Sale price $112.38 Regular price $188.55

These filters are a stocking item. Sometimes however, our inventory can fall short due to supply issues from Baldwin. If needed, we will order directly from them and send to you next business day. We receive orders in about 2 weeks. If it looks like it will take longer, we will send you a text.


All cross numbers listed will fit and seal.  If you need more exact crossovers such as size or micron ratings message me.  The crosses listed are only a guide if specifics don’t matter.  Use the pictures shown as a help in determining if this filter is right for you.


We are a Baldwin and Fleetguard Filter distributor that purchases new filters directly from them.  If you wish to purchase any filters you don’t see listed in our store, it’s possible we have them in stock, if not we can order the filters for you.  We all want the best prices of anything we buy. If you see any new filters in our store that have a higher price than other stores you see online, send me a text.  Filters are also sold locally that could limit availability of filters you see online. 

If there are any filters we need to order or are short on stated inventory, I will text you personally and not from a robot.  Please leave a cell phone as your contact.  Otherwise, you will need to contact me for status.  Contacting me by text is best way.


Filters ordered Friday, Saturday, Sunday and before 10am Monday will ship out on Tuesday.    

Filters ordered Monday, Tuesday and Wednesday before 10am will ship out on Thursday.  

Filters ordered Wednesday, Thursday before 10am will ship out on Friday.

If you have a shop and those darn filters are just collecting dust. Send me a list of filters you have and how much you are asking and your location. I will look up part numbers you send to find the wholesale value and send an offer to you. The more presentable the filters are the more I can offer.

Thank You for visiting AYP-Parts.

No Returns offered if the part is not correct without contacting us first before order is made with the part number you need.  The cross-reference numbers listed are only as a guide.  Any charts you see online may not be 100% correct.  Some manufactures use the same part numbers but may be a different part.  We will confirm that this part will work for you when you contact us.


BF7966 (6 PACK) BALDWIN FUEL FILTER FF5421 Cummins QSB 6.7L Diesel a080

Technical Specifications

Brand: Baldwin
Part Number: BF7966
Product Style: Fuel Filter
Technology: Filtration
Product Type: Fuel Spin-on
Notes: CAUTION: Furnished O-Ring must be installed on post for seal.
Thread Size: M20 x 1.5
Outside Diameter: 3 11/16 (93.7)
Length: 7 7/32 (183.4)
Gasket: Furnished Gasket: [1] Included; Integral Gasket: G381-A
Micron Rating: 5 Absolute
Application: Freightliner S2 Bus Chassis; Kawasaki 70ZV Loader; Kenworth Trucks
Compatible Competitor Part Number: Cummins 3978040, 4897897; Fleetguard FF5421

Popular Cross References

BF7966 3978040 4897897 P550881 P9454 33682 2653231452 3222999092 BF7813 BF7940 BF7957 86654 86966 FSM4166 4897833 1399760 1529640 DP010206 40040300126 65125035026 65125035026A A408064 FF165 FF5420 FF5421 FF5612 FFR85420 FFR85485 P10715 GP548 941410755 9414101755 SN40529 SN40542 3034304 263F107071 2992241 504033400 32925932 K1399760PAC 6754716130 6754716140 6754796130 6754796140 53C0303 12990755801 LFF3802 LFF5485 KC188 WK95021 3654 3956 3966 16400LA40A J8621614 FC5613 103142 SK3154 SK3297 J16003A050400 4894548 PSC75 704970231 FF550881 2075482 2R0127177B 14559479 43919943 33654 33956 33966 533654 ND131085 BF7922 86682 84167233 84412164 87803200 J978040 ND131084 21703110 7005362 4989106 P550880 FCX9321 FF5790 BG5X9155AA 9414101756 FF1188 FF1246 2103892 11LC70010 504043765 504292579 70020348 90031422 LFF5421 166312 WK929X WK960 711853A1 3682 2353548 71102624, 72130519, 87646722, 87803197, 87803209, F75921, RC376, 87803208