Baldwin NEW By-Pass Lube Spin-On Oil Filter B7577 Caterpillar Cummins NOS 0810

Baldwin By-Pass Lube Spin-On Oil Filter — Part Number B7577
Brand: Baldwin Filters | Condition: New

You are purchasing a new Baldwin By-Pass Lube Spin-On Oil Filter, part number B7577. This large-capacity by-pass filter routes a portion of engine oil through ultra-fine filtration media to remove contaminants that the full-flow filter cannot capture, providing an additional layer of engine protection that significantly extends oil service life. Can be used with Baldwin OB1308 base. Includes G498-D integral gasket. Baldwin Filters is a global leader in heavy-duty filtration trusted by fleet operators and equipment professionals worldwide.

Condition Details: This is a new, uninstalled filter. As is common with NOS inventory, the original packaging may show signs of shelf wear or age. The filter itself is new and fully functional.

Specifications:

• Type: By-Pass Lube Spin-On Oil Filter
• Thread Size: 1-3/8"-16
• Outside Diameter: 4-11/16" (119.1mm)
• Length: 9-15/16" (252.4mm)
• Micron Rating: 15 Absolute
• Features: G498-D Integral Gasket
• Compatible Base: OB1308

Cross-Reference Part Numbers:

• Caterpillar OEM: 9Y4468
• Cummins OEM: 3304232
• Ford OEM: E3HZ-6731-A
• GMC OEM: 25011187
• Donaldson: P550777, P779206
• Fleetguard: LF777
• Wix: 51749
• Fram: P3555PL
• ACDelco: PF940
• Hastings: LF439
• John Deere: RE42051
• Allis-Chalmers: 74322701

Compatible Equipment (partial list — heavy-duty trucks & equipment):

• Caterpillar, Cummins, GMC diesel engines
• Autocar, Blue Bird, Chevrolet, Ford, Freightliner, GMC, International, Kenworth, Mack, Peterbilt, Spartan, Sterling, Volvo, Western Star, White — select heavy-duty truck models 1965–2011+

Why Choose Quality Replacement Parts? Baldwin Fuel Manager filters are engineered to meet or exceed OEM filtration specifications, delivering reliable protection for diesel fuel systems. Baldwin is a globally recognized manufacturer of premium heavy-duty filters trusted by fleet operators and equipment professionals across industries.

Returns: We proudly offer hassle-free returns. If you are not completely satisfied with your purchase for any reason, simply open a return request through eBay within 30 days of purchase and we will take care of you promptly.

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Please verify fitment using your equipment's model and serial number before purchasing. Feel free to message us with any questions — we're here to help!

QBS Parts, Inc. — Gardena, CA