Fleetguard LF3566 vs Fleetguard LF3493: Oil Filter Compatibility
Compare Fleetguard LF3566 and Fleetguard LF3493 oil filters by compatibility, dimensions, thread size, gasket fit, bypass valve, anti-drainback valve status, and match confidence. Use this comparison as a fitment review, not as an automatic substitution guarantee. Both use a 11/2-16 thread.
Quick verdict
Bypass presence unknown on one or both filters · ADBV unknown on one or both filters
- Thread size is the first hard-fit check for any comparison of spin-on filters.
- Gasket OD and gasket ID are the most important seal-related dimensions.
- Height differences can matter for clearance even when thread and gasket fit appear close.
- Bypass and anti-drainback differences may be important, depending on the application.
Fleetguard LF3566 and Fleetguard LF3493 specifications
How matching is scored| Specification | Fleetguard LF3566 | Fleetguard LF3493 |
|---|---|---|
| Thread size | 1 1/2-16 UNS-2B | 1 1/2-16 UNS-2B |
| Gasket OD | 108.71 mm | 109.22 mm |
| Gasket ID | 99.06 mm | 99.82 mm |
| Can OD | 137 mm | 137 mm |
| Height | 310 mm | 316 mm |
| Internal bypass valve | Unknown | Unknown |
| Bypass PSID | Unknown | 36.26 |
| Anti-drainback valve | Unknown | Unknown |
What matters in this specific comparison
Thread size matches: both are 11/2-16.
Gasket OD differs by 0.5 mm (Fleetguard LF3566: 108.71 mm, Fleetguard LF3493: 109.22 mm).
Gasket ID differs by 0.8 mm (Fleetguard LF3566: 99.06 mm, Fleetguard LF3493: 99.82 mm).
Fleetguard LF3493 is 6 mm taller (Fleetguard LF3566: 310 mm, Fleetguard LF3493: 316 mm) -- check clearance before substituting.
Can OD is identical at 137 mm.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.