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  • Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139
  • Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139
  • Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139
  • Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139
  • Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139
  • Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139
Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139

Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139

  • >= 1000 Pieces
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Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Contaminant Filtration: Equipped with a titanium solvent trap and filter paper, effectively removes debris, impurities, and solvent residues from fuel to ensure clean fuel flow.
  • Engine Protection: Designed for compatibility with multiple engine types (e.g., 1.4L, 1.8T, 2.0T, 3.0 V6, all-wheel drive systems) to prevent damage from contaminated fuel.

Key features

  • 1. Corrosion-Resistant Iron Housing

    • With a durable iron housing, you can ensure long-lasting structural integrity in harsh engine environments, outperforming plastic-bodied filters prone to degradation*.

  • 2. Flanged Design for Easy Installation

    • With flanged ends and secure rubber seals, you can achieve quick, tool-free installation and maintenance, saving time compared to traditional filters with complex fittings*.

  • 3. Broad Engine Compatibility

    • With compatibility for 2.5L, 1.4L, 3.0 V6, and other engine types across Saab, VW, Audi, and Cadillac models, you can seamlessly replace OEM parts without compatibility issues*.

  • 4. High-Efficiency Contaminant Removal

    • With multi-layer filter paper technology, you can trap even microscopic debris, maintaining clean fuel flow for optimal engine performance in both daily use and high-demand scenarios*.

  • 5. OEM-Certified Reliability

    • As an original equipment manufacturer (OEM)-approved component, you can trust compliance with automotive safety and performance standards, unlike uncertified aftermarket alternatives*.

Product details

Direct Factory Auto Parts for Titanium Solvent Trap Fuel Filter 31973-44001 Fuel Filter Original Fuel Filter D21139

The Direct Factory Auto Parts Titanium Solvent Trap Fuel Filter (Part No. 31973-44001) is a durable, high-performance component designed for Saab, VW, Audi, Seat, and Cadillac vehicles. Engineered with iron housing and premium filter paper, it ensures clean fuel delivery for engines ranging from 1.4L to 3.0L V6, including turbocharged and all-wheel-drive systems. Its robust design and compatibility with multiple engine types make it a reliable solution for maintaining fuel system integrity.

Technical specifications

FeatureSpecificationBenefit
MaterialIron housing + Filter paperCorrosion resistance and superior filtration
Compatibility2.5L, 1.4L, 1.8L, 3.0L V6, 2.0T, etc.Universal fit for turbo, AWD, and high-performance engines
DesignCylindrical with flanged endsSecure installation and leak prevention
SealingRubber/plastic gasketsZero-leak performance under high pressure
CertificationMeets OEM standardsGuaranteed reliability and longevity

Customization guide

Adjustable parameters include:

  • Filter media density for varying fuel contamination levels.
  • Housing material (e.g., stainless steel upgrade) for extreme environments.
  • Port orientation to match custom fuel system layouts.

Get inspired

With its iron housing and advanced filter paper, this fuel filter ensures uninterrupted fuel flow while protecting engines from debris. Ideal for vehicles in harsh conditions, it’s a must-have for maintaining peak performance and extending engine life.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Filtration Efficiency98% (OEM standard)+15% (99.7%)+30% (99.95%)*
Pressure Resistance6 bar8 bar10 bar
MaterialIronStainless SteelTitanium-coated

Supplier's note

  1. Technical Breakthroughs:

    • Titanium Coating (Pro Model): Reduces weight by 20% while enhancing corrosion resistance.
    • Advanced Filter Paper: Achieves 99.7% efficiency, outperforming traditional cellulose filters.
    • Universal Port Design: Simplifies installation across 12+ engine types, reducing downtime.

  2. Version Selection Guide:

    • Base Model: Suitable for standard engines (e.g., 1.4L-1.8L) in mild environments.
    • Advanced Model: Ideal for turbocharged engines (e.g., 2.0T, 3.0 V6 AWD) requiring higher pressure tolerance.
    • Pro Model: Recommended for heavy-duty applications (e.g., 3.0 V6 off-road vehicles) needing extreme durability and efficiency.

Example: The Pro version’s 99.95% filtration efficiency ensures clean fuel for high-horsepower engines, preventing premature wear. Its titanium coating also withstands corrosive solvents, making it perfect for industrial or marine use.

Frequently asked questions

  • Which fuel filter suits Saab engines with 2.0T turbo specifications?

  • How often should I replace the titanium solvent trap fuel filter in Audi’s 3.0 V6 engines?

  • Iron vs. Plastic: Which material is better for fuel filters in Audi’s 3.0 V6 engines?

  • Can this fuel filter be customized for Cadillac’s all-wheel drive systems?

  • Is the titanium solvent trap fuel filter 31973-44001 SAE-certified?

  • Which fuel filter fits VW 2.0 TSI engines?

  • How to clean the filter paper in the fuel filter?

  • Why is filter paper preferred in Saab’s 1.8T engines over synthetic materials?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHarsh environmental conditionsIron housing + filter paper (ISO 5010) ▲
(Industry: Plastic housing)		Enhanced corrosion resistance and durabilityHeavier than plastic alternatives
Filtration EfficiencyHigh contamination environments5 µm particle filtration (ISO 16889) ▲▲
(Industry: 10–15 µm)		Superior contaminant removal for cleaner fuelRequires more frequent replacements
Engine CompatibilityMulti-vehicle workshopsSupports 20+ engine types (e.g., 2.5L, 3.0 V6) ▲▲
(Industry: 3–5 types)		Versatile for Saab, VW, Audi, and Cadillac modelsMay not fit non-listed engine configurations
DurabilityLong operational cycles24-month lifespan (ASTM D543) ▲▲
(Industry: 12 months)		Reduced replacement frequencyHigher upfront cost compared to standard filters
Installation EaseDIY maintenance setupsUniversal flanges ▲
(Industry: Custom fittings)		Quick installation without specialized toolsMay not fit non-standard fuel systems
Noise LevelQuiet environments (e.g., offices)35 dBA (quieter than a refrigerator hum) ▲▲
(Industry: 45 dBA)		Minimal noise disruptionHeavier materials add to weight/cost

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