Dropping this information here as a future reminder to myself, in the event that I buy an old Bongo.
- Diesel full-flow (common on RF-family diesels)
- Mazda OE:
- RFY6-14-302 (also shown as RFY2-14-302 / RFY2-14-302; older numbers may supersede to this)
- Possible aftermarket equivalents (double-check before use):
- MANN: W 811/80
- MAHLE/Knecht: OC 205
- BOSCH: 0 451 103 316
- WIX: WL7171
- FRAM: PH5317
- 2.5L WL diesel (often Bongo Friendee / late-era imports)
- Mazda OE:
- WLY0-14-302
- Possible aftermarket equivalents (double-check before use):
- MANN: WP 928/80
- MAHLE/Knecht: OC 275
- BOSCH: 0 986 452 062
- WIX: WL7175
- Petrol engines (Mazda “M20x1.5” style spin-on used across many models)
- Mazda OE:
- FEY0-14-302 (Mazda shows this with alternates like B6Y2-14-302-P1)
- Possible aftermarket equivalents (double-check before use):
- FRAM: PH3593A
- Purolator: L14460 / L14620
- WIX: 51064
- IMPORTANT NOTES
- Diesel Secondary Filter: If there is a second “bypass / side-stream” oil filter
- Some setups list a separate bypass filter that’s used in addition to the main full-flow filter.
- Mazda OE:
- 8259-23-802
- K710-23-802
- R21423802
- Possible aftermarket equivalents (double-check before use):
- Blue Print: ADM52104
- Nipparts: J1313006
- Quick “don’t-get-burned” checks
- Confirm the thread, gasket diameter, and height match.
- Especially true for WL and RF filters.
- If you see a reference to “bypass/side-stream,” assume it’s a second filter, not a substitute for the main one.
