Komatsu Ltd. 6735-51-5140 vs Baldwin B131: Oil Filter Compatibility
Compare Komatsu Ltd. 6735-51-5140 and Baldwin B131 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 3/4-16 thread.
Quick verdict
Both use a 3/4-16 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.
Komatsu Ltd. 6735-51-5140 and Baldwin B131 specifications
How matching is scored| Specification | Komatsu Ltd. 6735-51-5140 | Baldwin B131 |
|---|---|---|
| Thread size | 3/4-16 | 3/4-16 |
| Gasket OD | 72 mm | 71.98 mm |
| Gasket ID | 62 mm | 62.53 mm |
| Can OD | 74.19 mm | 77 mm |
| Height | 86.46 mm | 87.3 mm |
| Internal bypass valve | Yes | Yes |
| Bypass PSID | 8 - 11 | 8 |
| Anti-drainback valve | Yes | Yes |
What matters in this specific comparison
Thread size matches: both are 3/4-16.
Gasket OD is identical at 72 mm.
Gasket ID differs by 0.5 mm (Komatsu Ltd. 6735-51-5140: 62 mm, Baldwin B131: 62.53 mm).
Baldwin B131 is 0.8 mm taller (Komatsu Ltd. 6735-51-5140: 86.46 mm, Baldwin B131: 87.3 mm) -- check clearance before substituting.
Can OD differs by 2.8 mm (Komatsu Ltd. 6735-51-5140: 74.19 mm, Baldwin B131: 77 mm).
Both open their bypass valve in a comparable range: Komatsu Ltd. 6735-51-5140 at 8-11 psi, Baldwin B131 at 8-8 psi.
Open related filters
Before substituting, verify thread fit, gasket sealing dimensions, height clearance, bypass behavior, and anti-drainback requirements for your specific application.