Donaldson P550371 Oil Filter Cross Reference
Use this page to compare the Donaldson P550371 with potentially compatible oil filters from other brands. Review thread size, gasket dimensions, overall height, and fitment notes before substituting. A cross reference is a research tool, not an automatic guarantee of fitment.
Before substituting: verify filter style, thread size or cartridge dimensions, gasket dimensions, height, clearance, bypass behavior, and application-specific requirements.
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Best equivalent matches
Select up to 4 filters, then click Compare to view their specs next to the searched filter.
| Specification | Searched filter Donaldson P550371 Reference filter | WIX 51734Best Match Score: 63.2 RISKY Large gasket OD variation · Large gasket ID variation | Score: 63.2 RISKY Large gasket OD variation · Large gasket ID variation | Score: 63.2 RISKY Large gasket OD variation · Large gasket ID variation | Score: 60.5 RISKY Large gasket OD variation · Large gasket ID variation |
|---|---|---|---|---|---|
| Thread size | 11/2-16 | 11/2-16 | 11/2-16 | 11/2-16 | 11/2-16UN-2B |
| Gasket OD | 99 mm | 100.8 mm | 100.8 mm | 100.8 mm | 100.23 mm |
| Gasket ID | 90 mm | 91.11 mm | 91.11 mm | 91.11 mm | 91.08 mm |
| Can OD | 108 mm | 108.8 mm | 108.8 mm | 108.4 mm | 108 mm |
| Height | 204 mm | 205.6 mm | 205.6 mm | 206.3 mm | 182 mm |
| Internal bypass valve | No | Yes | Yes | Yes | No |
| Bypass PSID | Unknown | 8 - 11 | 8 - 11 | 8 - 11 | Unknown |
| Anti-drainback valve | Yes | Yes | Yes | Yes | No |
| ID top | Unknown | Unknown | Unknown | Unknown | Unknown |
| ID bottom | Unknown | Unknown | Unknown | Unknown | Unknown |
Related compatible filter pages
Frequently asked questions
What replaces Donaldson P550371?
Several oil filter alternatives may be compatible with Donaldson P550371, but you should always verify thread dimensions, gasket sealing dimensions, bypass behavior, anti-drainback valve requirements, and installation clearance before substituting.
How do I confirm a cross reference for Donaldson P550371?
Compare thread size, thread pitch, gasket outside diameter, gasket inside diameter, can height, bypass pressure range, and anti-drainback valve requirements before using a substitute.
Can I use a different-size oil filter instead of Donaldson P550371?
Sometimes, but only if thread compatibility, gasket seating, bypass behavior, and physical clearance are all acceptable for the application.