Large gasket OD variation · Large gasket ID variation
Fleetguard LF3638 Oil Filter Cross Reference
Use this page to compare the Fleetguard LF3638 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, and application-specific requirements.
Best equivalent matches
The searched filter is shown alongside the four strongest alternatives currently in the database. Compare dimensions, thread details, and compatibility notes before deciding whether a substitute may be appropriate.
12 total results
| Specification | Searched filter Fleetguard LF3638 Reference filter | WIX 51515RBest Match Overall match: 94% SAFE | Overall match: 90% SAFE | Overall match: 90% SAFE | Overall match: 76% COMPATIBLE |
|---|---|---|---|---|---|
| Thread size | 3/4-16UNF-2B | 3/4-16 | 3/4-16 | 3/4-16 | 3/4"X16 |
| Gasket OD | 71.88 mm | 71.98 mm 99% | 71.4 mm 95% | 72 mm 99% | 72 mm 99% |
| Gasket ID | 62.48 mm | 62.53 mm 99% | 62.7 mm 96% | 62 mm 92% | 62 mm 92% |
| Gasket overlap | Reference | Compared to base 100% | Compared to base 100% | Compared to base 100% | Compared to base 100% |
| Height | 127 mm | 131.3 mm 74% | 111.1 mm 58% | 104.9 mm 58% | 120 mm 88% |
| Bypass PSID | Unknown | 8 - 11 Unknown | 2 Unknown | Unknown Unknown | 12 Unknown |
| Anti-drainback valve | No | No 100% | No 100% | No 100% | Yes 0% |
| ID top | Unknown | Unknown N/A | Unknown N/A | Unknown N/A | Unknown N/A |
| ID bottom | Unknown | Unknown N/A | Unknown N/A | Unknown N/A | Unknown N/A |
Other suitable matches
Large gasket OD variation · Large gasket ID variation
Large gasket OD variation · Large gasket ID variation
Large gasket OD variation · Large gasket ID variation
Large gasket OD variation · Large gasket ID variation
Large gasket OD variation · Large gasket ID variation
Large gasket OD variation · Large gasket ID variation
Large gasket OD variation · Large gasket ID variation
Related compatible filter pages
Frequently asked questions
What replaces Fleetguard LF3638?
Several oil filter alternatives may be compatible with Fleetguard LF3638, 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 Fleetguard LF3638?
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 Fleetguard LF3638?
Sometimes, but only if thread compatibility, gasket seating, bypass behavior, and physical clearance are all acceptable for the application.
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