Baldwin B35-S vs ACDelco PF52: Oil Filter Compatibility
Compare Baldwin B35-S and ACDelco PF52 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 M18x1.5 thread.
Quick verdict
Both use a M18x1.5 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 B35-S and ACDelco PF52 specifications
How matching is scored| Specification | Baldwin B35-S | ACDelco PF52 |
|---|---|---|
| Thread size | M18x1.5 | M18x1.5 |
| Gasket OD | 69.9 mm | 70 mm |
| Gasket ID | 60.9 mm | 61 mm |
| Can OD | 76.2 mm | 76.2 mm |
| Height | 123 mm | 127 mm |
| Internal bypass valve | No | No |
| Bypass PSID | Not applicable | Not applicable |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are M18x1.5.
Gasket OD differs by 0.1 mm (Baldwin B35-S: 69.9 mm, ACDelco PF52: 70 mm).
Gasket ID differs by 0.1 mm (Baldwin B35-S: 60.9 mm, ACDelco PF52: 61 mm).
ACDelco PF52 is 4 mm taller (Baldwin B35-S: 123 mm, ACDelco PF52: 127 mm) -- check clearance before substituting.
Can OD is identical at 76.2 mm.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.