Bosch 3421 oil filter matches
Compare Bosch 3421 against compatible oil filters from other brands. Review thread size, gasket dimensions, height, valve behavior, and fitment notes before substituting. This is a research tool, not an automatic guarantee of fitment.
Before substituting: verify filter style, thread size or cartridge dimensions, gasket dimensions, height and clearance, bypass behavior, and your engine or equipment requirements.
Best equivalent matches
Select up to 4 filters, then click Compare to view their specs next to the searched filter. How matching is scored.
60 compatible options
| Specification | Searched filter Bosch 3421 Reference filter | WIX 51088Best Match SAFE | SAFE | SAFE | SAFE |
|---|---|---|---|---|---|
| Thread size | 3/4-16 | 3/4-16 | 3/4-16 | 3/4-16 | 3/4-16 |
| Gasket OD | 70 mm | 69.6 mm | 72 mm | 71.5 mm | 69.9 mm |
| Gasket ID | 61 mm | 60.2 mm | 62 mm | 62.5 mm | 60.9 mm |
| Can OD | 75.01 mm | 75.77 mm | 76 mm | 76.71 mm | 76.2 mm |
| Height | 120.4 mm | 119.5 mm | 119.5 mm | 122.43 mm | 130.2 mm |
| Internal bypass valve | Yes | Yes | Yes | Yes | Yes |
| Bypass PSID | 25 - 35 | 30 | 32 | 30 | 30 |
| Anti-drainback valve | Yes | Yes | Yes | Yes | Yes |
Other suitable matches
Sorted best-fit first. Dot rating summarizes relative fit without exposing the raw score. How matching is scored.
8
Large bypass PSI mismatch: 16.5 psi
9
Large bypass PSI mismatch: 20.5 psi
10
Large bypass PSI mismatch: 14 psi
11
Large bypass PSI mismatch: 20.5 psi
12
Large bypass PSI mismatch: 16.5 psi
13
Large bypass PSI mismatch: 20.5 psi
14
Large bypass PSI mismatch: 20.5 psi
15
Large bypass PSI mismatch: 20.5 psi
16
Closest known dimensional difference: height -31.5 mm. Verify application-specific requirements before substituting.
17
Large bypass PSI mismatch: 20.5 psi
18
Large bypass PSI mismatch: 14 psi
19
Closest known dimensional difference: height -55.5 mm. Verify application-specific requirements before substituting.
20
Large bypass PSI mismatch: 18 psi
21
Large bypass PSI mismatch: 18 psi
22
Closest known dimensional difference: height -21.9 mm. Verify application-specific requirements before substituting.
23
Large bypass PSI mismatch: 14 psi
24
Large bypass PSI mismatch: 14 psi
25
Large bypass PSI mismatch: 22 psi
26
Large bypass PSI mismatch: 18 psi
27
Closest known dimensional difference: height -42.4 mm. Verify application-specific requirements before substituting.
28
Closest known dimensional difference: height +11.1 mm. Verify application-specific requirements before substituting.
29
Closest known dimensional difference: height -65.5 mm. Verify application-specific requirements before substituting.
30
Large bypass PSI mismatch: 16 psi
31
Closest known dimensional difference: height -7.7 mm. Verify application-specific requirements before substituting.
32
Closest known dimensional difference: height -6.7 mm. Verify application-specific requirements before substituting.
33
Closest known dimensional difference: height -6.7 mm. Verify application-specific requirements before substituting.
34
Large bypass PSI mismatch: 16.5 psi
35
Closest known dimensional difference: height -65.4 mm. Verify application-specific requirements before substituting.
36
Large bypass PSI mismatch: 20.5 psi
37
Large bypass PSI mismatch: 16 psi
1.0/5.0
RISKY38
Closest known dimensional difference: height +13.7 mm. Verify application-specific requirements before substituting.
39
Large bypass PSI mismatch: 22 psi
40
Closest known dimensional difference: height +19.6 mm. Verify application-specific requirements before substituting.
41
Large bypass PSI mismatch: 20.5 psi
42
Large bypass PSI mismatch: 20.5 psi
43
Large bypass PSI mismatch: 14 psi
44
Large bypass PSI mismatch: 14 psi
45
Large bypass PSI mismatch: 14 psi
46
Large bypass PSI mismatch: 20.5 psi
47
Large bypass PSI mismatch: 20.5 psi
48
Large bypass PSI mismatch: 14 psi
49
Large bypass PSI mismatch: 14 psi
50
Large bypass PSI mismatch: 14 psi
51
Large bypass PSI mismatch: 14 psi
52
Large bypass PSI mismatch: 14 psi
1.0/5.0
RISKY53
Large bypass PSI mismatch: 14 psi
1.0/5.0
RISKY54
Large bypass PSI mismatch: 14 psi
55
Large bypass PSI mismatch: 14 psi
56
Large bypass PSI mismatch: 14 psi
57
Large bypass PSI mismatch: 16 psi
1.0/5.0
RISKY58
Large bypass PSI mismatch: 16 psi
1.0/5.0
RISKY59
Large bypass PSI mismatch: 16 psi
1.0/5.0
RISKY60
Large bypass PSI mismatch: 16 psi