See 3 verified Filter replacements for 51021, including Baldwin P42, plus 77 OEM numbers on the same page.
51021 is a Wix filter with 94 OEM matches and 3 verified alternative filters from 20 brands. Start with the interchange list below, then confirm fitment against the original application before ordering.
See 3 verified Filter replacements for 51021, including Baldwin P42, plus 77 OEM numbers on the same page.
The most visible replacements we currently show for 51021 are listed below. Treat them as a starting point for interchange research, then confirm application details before you swap filters in service.
Cross-reference data helps you build a shortlist, but it should not be the last step. Before buying a replacement for 51021, verify the application, dimensions, seal or thread style, and service interval requirements against your current filter. If the equipment manual or supplier data disagrees with the lookup result, follow the equipment-side specification first.
| OEM Number | Brand | Source |
|---|---|---|
| & 4322701 ................51749 4503973 | - | wix |
| & 4337568 ................42112 4503973-5 | - | wix |
| 4613117 | - | wix |
| 4613117-0 | - | wix |
| 212E2550 | - | wix |
| 291E1758 | - | wix |
| AS 173 | ASAS | wix |
| 2CJ0611 | Ext. Life51753 | wix |
| 2CJ0807 | Ext. Life51753 | wix |
| BT9421-MPG ..........51863 C42-F | - | wix |
| BT23537 ................WL10303 C201-K | - | wix |
| 1 457 429 140 ..........57210 1 457 429 270 | BOSCH BOSCH | wix |
| 9 457 241 310 | BOSCH | wix |
| M30 | - | wix |
| 68157231AA ...........WF10255NP 479 75065398 | - | wix |
| 0133 031 0 | - | wix |
| G 729 ....................WL7021 GP 2 | - | wix |
| G 1338 ..................57214 LEB 5109 | - | wix |
| 402 ......................51161 552 | - | wix |
| 9323 | - | wix |
| V3595 ...................33595 2113 | - | wix |
| 7C3Z9601B .............49886 11TS18658B | - | wix |
| 7C349601AA ...........49883 155 11W18658A | - | wix |
| 49883FR 360 11W18658B | - | wix |
| 7C349601AB ...........49883 155 11W18660 | - | wix |
| 49883FR 360 11W18662 | - | wix |
| 7C349601DC ...........49886 11W18697 | - | wix |
| 7G91 9601AA ..........WA9521 11WA18662B | - | wix |
| 7HA6714A2 ............51006 11WA18662W | - | wix |
| 7HA6744A ..............51006 21TS18658B | - | wix |
| 7L1Z7A098A ...........58099 29B18697 | - | wix |
| 7N51-9155-AB .........WF8373 59LK6714A | - | wix |
| C7057 ...................51127 C8731 | - | wix |
| EQ305 | GRAF AND STIFT | wix |
| G855 | GUD | wix |
| D 05 E 200 M | - | wix |
| D 28 E 160 H 01 .......57214 E20.14 | - | wix |
| E200M | WA6176 | wix |
| E200M D05 | WA6176 | wix |
| E200M1 | WA6176 | wix |
| L4286130 ...............46777 509025 | - | wix |
| 105867H1 | - | wix |
| G213 ....................33296 K 525 | KRALINATOR KRALINATOR | wix |
| G214 ....................33311 K 575 | KRALINATOR KRALINATOR | wix |
| LP 30 | - | wix |
| LP 2236 | - | wix |
| 57MD25 .................42966 236GB117 | - | wix |
| 42941NP 479 236GB217 | - | wix |
| 57-MD-26 ...............42966 236GB223 | - | wix |
| 57MD27 .................42613 236GB233 | - | wix |
| ................33361 EN120 | - | wix |
| X | - | wix |
| A 352 180 00 09 | - | wix |
| 87637S ..................42701 88280A | NELSON NELSON | wix |
| 60369A | ONAN | wix |
| L30010 ..................51172 L40035 | PUROLATOR PUROLATOR | wix |
| MF 94 A | - | wix |
| D | 49883FR 360 | wix |
| 3015/1 | 49883FR 360 | wix |
| 51452 L40035 | - | wix |
| 556 019 319 | WF8018 | wix |
| 9.23.479.67 .............WA6411 9.24.006.17 | - | wix |
| SB 2367 .................WA10007 SF 504 | SCT SCT | wix |
| O30 | - | wix |
| OP606 | - | wix |
| 25.041.00 ...............57328 25.434.00 | - | wix |
| 3100500 ................33066 2113 | - | wix |
| 3153000 ................33477 3876100 | - | wix |
| S3CC | W.G.B. | wix |
| 1424 .....................33102 154440 | WAUKESHA WAUKESHA | wix |
| 4747 .....................51657 0154451A | WAUKESHA WAUKESHA | wix |
| X 30 | - | wix |
| 1319A6 | - | wix |
| DT230 ...................42230 PC5F | - | wix |
| 572 | - | wix |
| WGL716 ................51344 WGL3357 | - | wix |
| WGL777R ..............51749 WGL3391 | - | wix |
This page is designed to help you move from a part number to a verified shortlist. We combine OEM references, equivalent filter matches, and related pages so you can compare options faster without losing the original application context.
If you are sourcing for maintenance, fleet purchasing, or overseas supply, use the OEM list and related replacements together. That approach is safer than choosing a substitute based only on a similar-looking part number.
51021 has verified cross-reference replacements such as P42, P550117, and PF1190x. Always confirm fitment against the original application before you swap filters.
51021 and P42 are different part numbers, but P42 is listed as a verified Baldwin equivalent in the FilterXRef database.
51021 is connected to 20 brands in our records, including ASAS, Ext. Life51753, BOSCH BOSCH, and BOSCH and 16 more brands. Use those references as a starting point, then verify the application before buying.
Before replacing 51021, verify the application, dimensions, thread or seal style, and service requirements against your current filter. Cross-reference data should narrow the shortlist, but final fitment should always be confirmed on the equipment side.
Learn how filter cross reference works, which specs to verify, and how to avoid mismatched filters when replacing parts.
Learn how wix filter cross reference works, which specs to verify, and how to avoid mismatched filters when replacing parts.
Learn how to decode oil filter part numbers from Baldwin, Wix, NAPA, and FRAM. Master the cross-reference process to find the perfect replacement filter for any vehicle or equipment.
We source Wix 51021 and compatible replacements directly from OEM-equivalent factories in China. Competitive pricing, flexible MOQ.