Fleetguard MK33M cross reference
Baldwin replacement for MK33M
Baldwin lists BK6710 as the replacement for MK33M.
Source: Baldwin Manufacturers' Cross-Reference, Form 560-24 (2024).
Part numbers Fleetguard MK33M replaces
Fleetguard lists MK33M as the replacement for these manufacturer part numbers:
| Manufacturer | Their part number |
|---|---|
| NAPA (NAPA) | 1979 |
| BIG A (BIGA) | 2047 |
| HOUSINGS MTU M.T.U. NKK NKK (MACK) | 215-SB-134A |
| HOUSINGS MTU M.T.U. NKK NKK (MACK) | AF4711 215-SB-193 |
| WIX (WIX) | 24222 |
| NAPA (NAPA) | 4222 |
| HOUSINGS MTU M.T.U. NKK NKK (MACK) | 57-GC-295 |
| CARQUEST (CARQ) | 89222 |
| BIG A (BIGA) | 96222 |
| BALDWIN (BALD) | B-977 KIT |
| BALDWIN (BALD) | BK-6710 |
| FRAM (FRAM) | FK-3434 |
| AC (AC) | FMK20 |
| PUROLATOR (PURO) | K50002 |
| HASTINGS (HAST) | K-21 |
| HASTINGS (HAST) | KF21 |
| DONALDSON (DON) | KMP55-9003 |
| LUBERFINER (LBRF) | LK-3M |
| PUROLATOR (PURO) | MKM-2 |
| DONALDSON (DON) | P55-9003 |
| AIR REFINER (A-R) | PI 75100 DN SMX VST 25ST2219 MAHLE PK-25 |
Source: Fleetguard Cross Reference by Part Number, doc LT19457D (2012). Fleetguard's published direction is manufacturer part → Fleetguard replacement.
Currentness: these crosses come from Fleetguard's 2012 list and have not been revalidated as current. Baldwin's 2024 list gives the same replacement for MK33M and 11 of the 21 part numbers above. That shows a shared Baldwin replacement only. It does not verify that those numbers interchange with MK33M today.
Upgrade chains run one way: equipment spec'd with a newer filter number should not step back to the older one. Go by what the truck was spec'd with.
Always verify against the current OEM catalog before ordering. Cross references are a starting point, not a guarantee of fit.
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