Product Introduction

• Structure: A spin-on canister-style filter with a durable steel housing, multi-layered high-efficiency filtration media, and a rubber gasket for a leak-free seal. The dual-model designation (CX0712A/CX0709) indicates it may be compatible with multiple filter housing sizes.

• Performance: Captures fine dirt, rust, and debris particles down to the micron level, preventing abrasion and clogging of fuel injectors and pumps. The high-capacity media maintains efficient flow rates even under heavy loads, ensuring consistent engine performance and extending the service life of fuel system components.

Core Function

1. Contaminant Removal: Filters out harmful particles from diesel fuel to prevent premature wear and damage to critical fuel system components.

2. Injection System Protection: Ensures clean fuel delivery to injectors, maintaining optimal spray patterns and combustion efficiency.

3. Service Convenience: The spin-on design allows for fast, hassle-free replacement, reducing vehicle downtime during maintenance.

Fuel Filter CX0712A-СХ0709-А3000-1105020-937 Yuchai — Premium Diesel Filtration for Heavy-Duty Performance

Dirty fuel is the silent killer of injection systems. The Fuel Filter CX0712A-СХ0709-А3000-1105020-937 Yuchai stands guard between contaminated diesel and your engine’s precision fuel components. Engineered to OEM specifications for Yuchai-powered commercial vehicles, this high-efficiency fuel filter captures water, particulates, and micro-contaminants before they reach injectors — extending engine life and protecting your fleet investment. Supplied factory-direct by METTLEAD Truck Parts, it delivers genuine-quality filtration at procurement-friendly pricing.

Key Features and Benefits of the Fuel Filter CX0712A Yuchai

Precision Filtration That Protects Your Bottom Line

• High-Efficiency Media: Multi-layer composite filter media captures particles down to 3–5 microns, achieving over 95% contaminant separation efficiency and shielding injector nozzles from premature wear.
• Water Separation Capability: Integrated water-separating design removes emulsified and free water from diesel fuel, preventing corrosion in fuel rails and injection pumps.
• Extended Service Life: Engineered for 15,000–20,000 km replacement intervals under standard operating conditions, reducing downtime and maintenance frequency for fleet operators.
• Anti-Drain Back Valve: Built-in check valve maintains fuel prime during engine shutdown, ensuring instant cold-start performance without dry cranking cycles.
• Corrosion-Resistant Housing: Electrophoretic-coated steel canister resists road salt, moisture, and chemical exposure for reliable performance across all climate zones.
• OEM-Matched Flow Rate: Calibrated to deliver optimal fuel flow at rated engine RPM without pressure drop penalties, preserving full horsepower output.

Why Procurement Managers Choose This Filter

• Direct Cost Savings: Factory-direct sourcing eliminates distributor markups — typically 30–40% below aftermarket branded alternatives.
• Inventory Confidence: Cross-referenced to OEM part number A3000-1105020-937, ensuring drop-in fitment without engineering review.
• Bulk Order Flexibility: MOQ as low as 10 pieces with volume-tiered pricing for fleet maintenance contracts.
• Fast Lead Times: In-stock items ship within 3–5 business days; large orders fulfilled within 7–15 days.

Technical Specifications — Fuel Filter CX0712A-СХ0709-А3000-1105020-937

Vehicle Application Scenarios

Yuchai-Powered Commercial Fleet Applications

The Fuel Filter CX0712A-СХ0709-А3000-1105020-937 Yuchai serves as a critical filtration node in Yuchai diesel engine fuel systems. It mounts between the fuel tank transfer pump and the high-pressure injection pump, intercepting harmful contaminants before they reach precision-machined injector components operating at tolerances of just 2–3 microns.

This filter fits the Yuchai YC6A, YC6L, and YC6J series engines commonly found in:

• DONGFENG: Tianlong KL/KX heavy-duty tractors and Tianjin KR medium-duty trucks
• FAW: Jiefang J6P and J7 series long-haul logistics vehicles
• FOTON: Auman ETX and EST series highway tractors
• SHACMAN: X3000/X5000 series configured with Yuchai powertrains
• SINOTRUK: HOWO T7H models with Yuchai engine options
• Bus and Coach: Yutong, King Long, and Zhongtong intercity coaches

Note on related components: For fleets operating Cummins ISG/QSG/F-series engines (e.g., Foton Auman with Cummins powertrain), the connecting rod 3698310 serves as the critical link between piston and crankshaft — converting the piston’s reciprocating force into rotational energy at the crankshaft. If your fleet includes mixed powertrains, METTLEAD supplies the complete Cummins engine component range alongside our Yuchai filtration parts.

OEM/ODM Capability — White-Label and Custom Packaging

Tailored Solutions for Distributors and Fleet Groups

METTLEAD Truck Parts understands that procurement managers need more than just a part — they need a supply partner who adapts to their brand strategy and logistics requirements.

• White-Label Packaging: We produce the Fuel Filter CX0712A Yuchai under your private brand with custom box design, logo printing, and label specifications. Minimum 500 pieces per white-label run.
• Custom Packaging Configurations: Individual retail boxes, bulk carton packs (10/20/50 units), or pallet-ready configurations for warehouse distribution.
• Cross-Reference Support: Our engineering team provides full OEM cross-reference documentation for your catalog integration — covering part number A3000-1105020-937 and all equivalent references.
• Quality Control: Every batch undergoes 100% pressure testing, media integrity inspection, and dimensional verification before shipment. Test reports provided per order on request.
• Flexible Payment Terms: T/T, L/C, Western Union, and trade assurance options available. Negotiable credit terms for repeat clients.
• Factory Visits Welcome: Procurement teams are invited to inspect our production facility, QC processes, and inventory systems firsthand.

Browse our complete range of Yuchai Engine Parts to consolidate your order and reduce per-unit shipping costs.

Customer Case Study — Fuel Filter CX0712A Bulk Procurement Success

East African Fleet Operator Reduces Fuel System Failures by 60%

A Nairobi-based logistics company managing 120 Dongfeng Tianlong trucks (Yuchai YC6L engines) approached METTLEAD after experiencing repeated injector failures. Their previous supplier delivered inconsistent aftermarket fuel filters that allowed water and fine particulates through to the common-rail system.

Challenge: Injector replacement costs exceeded $800 per unit, with an average of 8 failures per month across the fleet — representing nearly $77,000 in annual unplanned repair expense.

Solution: METTLEAD supplied 1,500 units of the Fuel Filter CX0712A-СХ0709-А3000-1105020-937 Yuchai on a 6-month supply contract with white-label packaging under the client’s house brand. Each batch included pressure test certificates and filtration efficiency reports.

Results after 8 months:

• Injector failure rate dropped from 8/month to 3/month — a 62.5% reduction
• Annual repair cost savings estimated at $48,000+
• Zero instances of water contamination reaching the injection pump
• Standardized 18,000 km replacement intervals achieved consistently

“We tested three suppliers before finding METTLEAD. Their Fuel Filter CX0712A delivers the same performance as the OEM original at 35% less cost. The consistency from batch to batch gives us confidence to standardize across our entire Yuchai fleet.” — Procurement Director, TransEast Logistics Ltd.

Frequently Asked Questions — Fuel Filter CX0712A-СХ0709-А3000-1105020-937 Yuchai

What contaminants does the Fuel Filter CX0712A remove from diesel fuel?

The Fuel Filter CX0712A-СХ0709-А3000-1105020-937 Yuchai is engineered to capture three types of contaminants: solid particulates (rust, dirt, metal shavings) down to 3–5 microns, free water that collects at the filter base for drainage, and emulsified water trapped within the fuel. This triple-action filtration protects injector nozzles, fuel rails, and high-pressure pumps from the damage that leads to costly downtime.

How often should I replace the Fuel Filter CX0712A on Yuchai engines?

Under standard operating conditions with quality diesel fuel (less than 200 ppm water content), the recommended replacement interval is 15,000–20,000 km. However, in regions with poor fuel quality — common across parts of Africa, Southeast Asia, and Central Asia — we recommend reducing the interval to 10,000–12,000 km and draining the water separator weekly. Always follow the Yuchai engine service manual as the primary reference.

Is this Fuel Filter CX0712A an exact OEM replacement?

Yes. The filter is manufactured to match OEM specification A3000-1105020-937 in all critical dimensions: thread pitch (M20 × 1.5), canister height, gasket diameter, and bypass valve cracking pressure. It installs in the same location using the same tools — no adapter plates, brackets, or modifications required. It directly replaces CX0712A and СХ0709 references in Yuchai service manuals.

Can poor fuel filtration damage my Yuchai engine’s common-rail system?

Absolutely. Modern Yuchai common-rail systems operate at injection pressures exceeding 1,600 bar. At those pressures, even particles as small as 5 microns act like grinding paste against injector needle seats and pump plungers. Water contamination accelerates corrosion and causes micro-pitting. A single failed filter can result in injector replacement costs of $500–$1,200 per cylinder. The Fuel Filter CX0712A-СХ0709-А3000-1105020-937 Yuchai is your lowest-cost insurance against these failures.

What is the difference between CX0712A and СХ0709 part numbers?

These are cross-reference designations used across different Yuchai engine series and model years. CX0712A is the primary filter catalog number, while СХ0709 appears in some earlier Yuchai engine service documentation. Both reference the same physical filter (A3000-1105020-937) with identical specifications, dimensions, and fitment. Ordering either part number from METTLEAD delivers the same product.

Does the Fuel Filter CX0712A work in cold climates where diesel gels?

The filter is rated for operation down to -35°C. However, fuel gelling is a fuel chemistry issue, not a filter deficiency. In extreme cold, we recommend using winter-grade diesel or anti-gel additives. The filter’s media will not restrict flow at low temperatures unless the fuel itself begins to crystallize. The NBR gasket maintains its seal integrity across the full -35°C to +120°C operating range.

Ready to Secure Your Supply of Fuel Filter CX0712A-СХ0709-А3000-1105020-937 Yuchai?

Every day your fleet runs without proper filtration is a day your injectors lose lifespan. Lock in factory-direct pricing, guaranteed OEM-spec quality, and reliable delivery timelines by partnering with METTLEAD Truck Parts.

Your next step is simple:

1. Tell us your required quantity and delivery destination
2. Receive a detailed quotation within 24 hours
3. Approve and receive your order in as few as 7 days

Whether you need 50 pieces for immediate stock replenishment or 5,000 units for annual fleet contracts, our team is ready to build a supply plan around your schedule and budget.

👉 Contact Us Now for a Fast Quotation — include your target quantity, shipping destination, and any white-label requirements for the fastest response.

Explore our full Yuchai Engine Parts Catalog to add complementary items — oil filters, fuel injectors, water pumps, and gasket kits — to your order and qualify for volume discounts.

METTLEAD Truck Parts — Genuine quality, factory pricing, global delivery. Your trusted source for Chinese truck parts worldwide.