Your garage is empty. Select a vehicle to see parts that fit it.
OE Reference Cross-Match
Explore top-quality wk421 available online at Carbus24. Browse genuine OEM and certified aftermarket replacement parts with guaranteed vehicle fitment, competitive prices, fast worldwide shipping, and premium customer service.
Select the vehicle
MANN · Aftermarket
In stock · Dispatch in 3 business days
2.37 USD
MANN-FILTER · Aftermarket
Out of stock · Dispatch in 3 business days
3.6 USD
MERCEDES-BENZ · Genuine
In stock · Dispatch in 3 business days
15.68 USD
SUBARU · Genuine
In stock · Dispatch in 3 business days
30.01 USD
HONDA · Genuine
In stock · Dispatch in 3 business days
11.71 USDHONDA · Genuine
In stock · Dispatch in 3 business days
11.71 USD
WIX FILTERS · Aftermarket
Out of stock · Dispatch in 3 business days
4.07 USD
VALEO · Aftermarket
Out of stock · Dispatch in 3 business days
6.62 USD
HENGST FILTER · Aftermarket
Out of stock · Dispatch in 3 business days
3.63 USDCUMMINS · Genuine
Out of stock · Dispatch in 3 business days
5.56 USD
WIX FILTERS · Aftermarket
Out of stock · Dispatch in 3 business days
1.63 USDAC · Genuine
Out of stock · Dispatch in 3 business days
1.22 USD
FLEETGUARD · Aftermarket
Out of stock · Dispatch in 3 business days
6.6 USD
PURFLUX · Aftermarket
Out of stock · Dispatch in 3 business days
1.85 USD
HERTH+BUSS JAKOPARTS · Aftermarket
Out of stock · Dispatch in 3 business days
2.61 USDVALEO · Aftermarket
Out of stock · Dispatch in 3 business days
690.7 USD
CHAMPION · Aftermarket
Out of stock · Dispatch in 3 business days
2.07 USD
MAHLE · Aftermarket
Out of stock · Dispatch in 3 business days
8.44 USD
KNECHT · Aftermarket
Out of stock · Dispatch in 3 business days
4.21 USD
FRAM · Aftermarket
Out of stock · Dispatch in 3 business days
0.93 USD
JAPANPARTS · Aftermarket
Out of stock · Dispatch in 3 business days
3.86 USD
VAICO · Aftermarket
Out of stock · Dispatch in 3 business days
3.62 USD
ASHIKA · Aftermarket
Out of stock · Dispatch in 3 business days
2.99 USD
MAHLE · Aftermarket
Out of stock · Dispatch in 3 business days
4.77 USD
JAPANPARTS · Aftermarket
Out of stock · Dispatch in 3 business days
3.17 USD
BOSCH · Aftermarket
Out of stock · Dispatch in 3 business days
2.81 USDBOSCH · Aftermarket
Out of stock · Dispatch in 3 business days
3.75 USD
FILTRON · Aftermarket
Out of stock · Dispatch in 3 business days
2.71 USD
A.B.S. · Aftermarket
Out of stock · Dispatch in 3 business days
149.53 USD
MAXGEAR · Aftermarket
Out of stock · Dispatch in 3 business days
1.24 USD
VALEO · Aftermarket
Out of stock · Dispatch in 3 business days
3.59 USD
FEBI BILSTEIN · Aftermarket
Out of stock · Dispatch in 3 business days
1.79 USD
MAGNETI MARELLI · Aftermarket
Out of stock · Dispatch in 3 business days
2.91 USD
MAGNETI MARELLI · Aftermarket
Out of stock · Dispatch in 3 business days
1.63 USD
OPTIMAL · Aftermarket
Out of stock · Dispatch in 3 business days
5.92 USD
FTE · Aftermarket
Out of stock · Dispatch in 3 business days
21.2 USD
KLOKKERHOLM · Aftermarket
Out of stock · Dispatch in 3 business days
Price on RequestFAI AutoParts · Aftermarket
Out of stock · Dispatch in 3 business days
Price on Request
PZL Filters · Aftermarket
Out of stock · Dispatch in 3 business days
Price on RequestLAURAK · Genuine
Out of stock · Dispatch in 3 business days
Price on Request
CITROËN · Genuine
Out of stock · Dispatch in 3 business days
Price on RequestAC · Genuine
Out of stock · Dispatch in 3 business days
Price on RequestAPOLLO · Genuine
Out of stock · Dispatch in 3 business days
Price on Request
AC · Genuine
Out of stock · Dispatch in 3 business days
Price on Request
KIOTI · Genuine
Out of stock · Dispatch in 3 business days
Price on RequestKUBOTA · Genuine
Out of stock · Dispatch in 3 business days
Price on RequestHYSTER · Genuine
Out of stock · Dispatch in 3 business days
Price on RequestWhy Customers Choose CarBus24
Genuine Promise
Checked against the OE numbers above before listing.
Money Back Guarantee
Get the item you ordered or your money back.
Secure Transaction
Your payment info is protected at all times.
14-Day Returns
Changed your mind? Return it within 14 days.
Cross-referenced parts are cataloged as fitting the same application but are not guaranteed to be identical to the original manufacturer part. Verify fitment against your OE number or VIN before ordering.
Reference/cross-reference numbers vary by engine, transmission, chassis and production date — not by number alone. Before ordering, compare your original OE number against WK42/1 number by MANN listed above, and check the dimensions or specifications against your original part.
If you’re unsure, contact CarBus24 with your VIN or the number printed on your original part and we’ll confirm the correct match before you order.
| OE (SACHS, Ford, Mazda) | Aftermarket (FAST, Valeo, LUK, Exedy) |
|---|---|
| Matches original manufacturer specification | Cross-referenced to the same application |
| Typically higher price | Typically lower price |
| Direct OE part number | Equivalent fit, different part number |
Compare your original OE number against the OE Reference Numbers listed above, and check the dimensions or specifications against your original part.
OE parts match the original manufacturer specification. Aftermarket parts are cross-referenced to fit the same application, usually at a lower price.
Yes — select your vehicle from the sidebar to see parts confirmed to fit your car.
Send us your VIN or the number printed on your original part and our team can confirm the correct match before you order.