Fuel Filter X00042421 X00012879 0020922801 Parameter:
Part Number	X00042421 X00012879 0020922801
Brand	Tamfiney
Weight	1203g
Height	260 mm
Outer Diameter	108 mm
Inner Diameter/ Thread Size	M32 x 1.5
Minimum Order	100 PCS
Place of Region:	Zhejiang, China
Payment Terms:	T/T
Price Terms:	FOB
Lead Time:	30 to 50 days based on order quantities
Market Type:	After Market
Current Export Market:	Southeast Asian,North America, South America, Western Europe, Eastern Europe, Africa, Oceania

What vehicles does X00042421 fit?

• KOHLER  KD 36V16-5AEP
• MTU  12 C 200012 V 4000 G2118 V 2000DIVERS
• SDMO  GEM 600KD 1250-FKD 1350R 1000 CR 1100R 1250 CR 1250 CR 1250 C3R 800 CR 880 CX 1000 KX 1000 UCX 1250X 650 UCX 715 KX 750 UCX 800 KX 880X 910 FTBX 910 KX 910 UCXS 630XS 650 KXS 910 K
• SIMED  800 KVA

Professional MTU Fuel Filter X00042421 X00012879 0020922801

Q: What is the MTU X00042421 Filter?

MTU X00042421 filter is a diesel filter specifically designed for MTU (Mercedes Benz Deutz) diesel engines. It is mainly used to filter impurities, moisture, and particulate matter in diesel to protect the engine fuel system from wear and blockage.

Product Name: MTU X00042421 Diesel Filter Cartridge/Diesel Filter

Applicable object: MTU engine, commonly used in generator sets, marine power, engineering machinery, heavy vehicles and other fields
• Main function: Filter impurities in diesel, ensure fuel cleanliness, and extend engine life
• Typical application scenarios:
MTU 12V/16V/18V/20V 2000 series generator set
MTU 12V/16V 4000 series high-power generator set
Ship propulsion systems, port machinery, mining equipment, etc

Technical parameters

• Filter layer material: paper or fiberglass
• Skeleton material: galvanized sheet or stainless steel
• Structural form: Foldable filter cartridge
• Working temperature: up to 120 ℃
• Inlet and outlet diameter: commonly 25mm (some models are 138mm, specific compatible models need to be confirmed)
• Filtering accuracy: Some data mentions 5 microns

Compatible models 

X00042421 diesel filter element is suitable for the following MTU generator set models:
• 12V183TB32L
• 12V2000G22 / G23 / G62 / G63
• 16V2000G23
• 18V2000G22 / G63
• 12V4000G21 / G61
• 16V4000G21 / G22 / G61
• 20V4000G22 / G62

Q: What is the difference between X00042421 and cheaper alternatives?

X00042421 is an original diesel filter cartridge from MTU (a heavy-duty engine brand under Mercedes Benz), mainly used for high-end power equipment such as generator sets, ships, and construction machinery. Its cheaper alternatives are usually compatible filter cartridges produced by domestic or third-party brands, which differ in performance, material, certification, and applicable scenarios.
• Brand and Source
X00042421: Original imported MTU parts that comply with German factory technical standards and are suitable for MTU 12V/16V/20V series engines.
Alternative products: mostly produced by Chinese manufacturers, with significantly lower prices and no guarantee of quality.
• Price range
X00042421: Original parts usually range from USD35 to ¥ USD50.
Alternative: Prices range from 7 to ¥ 40, with some low-priced products even priced between USD1 and USD7.

• Performance and reliability
X00042421: High precision filter material is used, with high filtration efficiency (usually ≥ 99%), high temperature resistance (120 ℃), corrosion resistance, suitable for continuous operation of generator sets or ship power.
Alternative: Some products use paper filter cartridges and galvanized skeletons. Although labeled as "high temperature and acid alkali resistance", their long-term reliability has not been verified by the original factory and they are suitable for non critical or intermittent operating equipment.
• After sales service and warranty
X00042421: The original factory provides complete warranty and technical support.
Alternative: Most manufacturers only provide basic after-sales service, and some low-priced products do not have a clear warranty period.

Purchase suggestions

If used in scenarios with high reliability requirements such as generator sets, ships, and heavy-duty equipment, it is recommended to use the original X00042421.
If used for non critical equipment, backup units, or budget sensitive projects, domestic alternatives in the USD4-7 range can be considered, but it is necessary to confirm whether the filter cartridge size, interface, and filtration accuracy match.

Q: How often should I replace MTU fuel filters?

MTU is a renowned enterprise specializing in the production of large diesel engines (primarily for industrial applications such as ships, power generation, and locomotives). The replacement cycle for its fuel filters differs significantly from that of conventional passenger vehicles. The fuel filter replacement cycle for MTU engines is typically determined by operating hours or usage conditions, rather than mileage.

MTU Fuel Filter Replacement Recommendation

• Routine replacement cycle: The MTU official maintenance manual typically recommends replacing the fuel filter every 250 hours of operation or every 6 months, whichever comes first.
• Reduce the cycle time under harsh working conditions:If the engine is used under the following conditions, it is recommended to replace it every 100–150 hours:
    o Using low-quality or fuel with high impurity levels;
    o Operating in dusty, high-temperature, and high-humidity environments for extended periods;
    o Frequent start-stop operations or low-load operation.

• High-power or critical application models (e.g., ships, emergency power generation):
    Certain models (such as the MTU 2000/4000 series) may require stricter maintenance, with inspections every 100 hours and replacements at 200–250 hours. Specific requirements should be referred to in the corresponding model's "Maintenance Manual."