Baldwin B1431 vs Premium Guard PG4612: Oil Filter Compatibility
Compare Baldwin B1431 and Premium Guard PG4612 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 M20x1.5 thread.
Quick verdict
Both use a M20x1.5 thread.
- 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.
Baldwin B1431 and Premium Guard PG4612 specifications
How matching is scored| Specification | Baldwin B1431 | Premium Guard PG4612 |
|---|---|---|
| Thread size | M20x1.5 | M20x1.5 |
| Gasket OD | 62.7 mm | 62.74 mm |
| Gasket ID | 54.8 mm | 55.37 mm |
| Can OD | 67.5 mm | 65.53 mm |
| Height | 101.6 mm | 76.45 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 14 | 17 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are M20x1.5.
Gasket OD is identical at 62.7 mm.
Gasket ID differs by 0.6 mm (Baldwin B1431: 54.8 mm, Premium Guard PG4612: 55.37 mm).
Baldwin B1431 is 25.1 mm taller (Baldwin B1431: 101.6 mm, Premium Guard PG4612: 76.45 mm) -- check clearance before substituting.
Can OD differs by 2 mm (Baldwin B1431: 67.5 mm, Premium Guard PG4612: 65.53 mm).
Both open their bypass valve in a comparable range: Baldwin B1431 at 14-14 psi, Premium Guard PG4612 at 17-17 psi -- these ranges do not overlap.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.