Fleetguard MK31M cross reference
Baldwin replacement for MK31M
Baldwin lists BK6700 as the replacement for MK31M.
Source: Baldwin Manufacturers' Cross-Reference, Form 560-24 (2024).
Part numbers Fleetguard MK31M replaces
Fleetguard lists MK31M as the replacement for these manufacturer part numbers:
| Manufacturer | Their part number |
|---|---|
| NAPA (NAPA) | 1976 |
| BIG A (BIGA) | HF61186 2049 |
| HOUSINGS MTU M.T.U. NKK NKK (MACK) | 215-SB-121 |
| HOUSINGS MTU M.T.U. NKK NKK (MACK) | 215-SB-192 |
| WIX (WIX) | 24210 |
| NAPA (NAPA) | 4210 |
| HOUSINGS MTU M.T.U. NKK NKK (MACK) | 57-GC-294 |
| HOUSINGS MTU M.T.U. NKK NKK (MACK) | 57GC294B |
| CARQUEST (CARQ) | 89210 |
| BIG A (BIGA) | 96210 |
| BALDWIN (BALD) | B-576 KIT |
| BALDWIN (BALD) | BK-6700 |
| FRAM (FRAM) | FK-3352 |
| AC (AC) | FMK22 |
| PUROLATOR (PURO) | K50001 |
| HASTINGS (HAST) | K-18 |
| HASTINGS (HAST) | KF18 |
| DONALDSON (DON) | KMP55-9001 |
| LUBERFINER (LBRF) | LK-1M |
| AC (AC) | LT-651 |
| PUROLATOR (PURO) | MKM-1 |
| DONALDSON (DON) | P55-9001 |
| AIR REFINER (A-R) | PI 75040 DN SMX VST 25ST2217 MAHLE PK-16 |
| WGB | PI 75063 DN SMX VST 25ST2218 MAHLE PK-16 |
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 MK31M and 11 of the 24 part numbers above. That shows a shared Baldwin replacement only. It does not verify that those numbers interchange with MK31M 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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