Product Overview

Engineered as a critical spark generation module, the Ignition Coil OE:30735759 is purpose-built to sustain the optimal performance of modern internal combustion engines. By stepping up the vehicle's baseline 12V electrical current into a high-intensity discharge, this component initiates the combustion of the compressed air-fuel mixture within the cylinders. Installed directly onto the cylinder head, it operates in precise coordination with the Engine Control Unit (ECU) to ensure efficient fuel burn, stable idle characteristics, and maximum power output. Manufactured to exact OEM standards, the OE:30735759 serves as a premium direct-fit replacement, delivering uncompromising reliability for select Volvo and Ford platforms.

Core Advantages

True Plug-and-Play Integration

Reverse-engineered to match original equipment dimensions perfectly, this coil requires zero modifications for installation. It aligns seamlessly with factory mounting points and electrical connectors, ensuring a secure, vibration-free fit right out of the box.

Consistent High-Voltage Output

Constructed with premium-grade copper windings and a high-permeability iron core, it reliably produces a secondary voltage exceeding 34,000V. This guarantees a strong, consistent spark across all engine speeds, effectively eliminating hesitation and cylinder misfires during hard acceleration or cold weather starts.

Superior Thermal Stability

The exterior housing is fabricated from reinforced, high-temperature PBT plastic, capable of enduring continuous engine bay heat up to 195℃. This robust construction resists thermal degradation, oil saturation, and chemical exposure, ensuring long-term structural integrity.

Advanced Internal Encapsulation

The internal electromagnetic assembly is fully sealed using a vacuum epoxy potting process. This creates an IP6K9K-rated hermetic barrier that prevents moisture intrusion, eliminates internal arcing, and protects the vehicle's ECU from harmful voltage spikes.

Rigorous Durability Validation

Produced in an IATF16949-certified manufacturing facility, every single unit is subjected to exhaustive stress testing. This includes thermal shock cycling, dielectric breakdown tests, and over 58,000 operational cycles, ensuring a defect-free lifespan exceeding 115,000 kilometers.

Technical Specifications

Parameter	Details
Product Model	Ignition Coil OE:30735759
Dimensions	92.0MM x 69.5MM x 64.0MM
Cross-Reference OE Numbers	30735759, 30735759-1, 31325193, UF-476
Application	Automotive Gasoline Engine Ignition System
Input Voltage	12V DC
Rated Output Voltage	≥34,000V
Operating Temperature Range	-45℃ to +195℃
Housing Material	High-Strength Heat-Resistant PBT Plastic
Insulation System	High-Purity Ceramic + Epoxy Resin Encapsulation
Mounting Configuration	Single Bolt-On Fixed Installation
Electrical Connector	4PIN Waterproof Automotive Connector

Vehicle Compatibility

Volvo: S40 (2004-2012), V50 (2005-2012), C30 (2007-2013), S60 (2004-2009), V70 (2004-2007), XC90 (2003-2006)

Ford: Focus (2005-2011), C-MAX (2005-2010)

Mazda: Mazda3 (2004-2013), Mazda5 (2006-2013)

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Installation Guidelines

Safety Preparation: Always disconnect the negative battery terminal before beginning installation. Wait 3-5 minutes to allow residual electrical charge in the ignition system to dissipate, preventing short circuits or damage to sensitive electronic components.

Temperature Precautions: Ensure the engine has cooled to below 40℃ before handling. Installing the coil on a hot engine can cause burns and may lead to thermal deformation of the plastic housing or rubber seals.

Surface Preparation: Clean the cylinder head mounting surface and spark plug well thoroughly. Remove any oil, carbon deposits, or debris to ensure a proper seal between the coil and spark plug, preventing spark leakage or poor electrical contact.

Proper Installation: Align the coil vertically with the spark plug and mounting hole. Press down firmly until the mounting bracket sits flush against the cylinder head, then secure with the mounting bolt to the specified torque of 9.5-11.5 N·m to prevent loosening from engine vibration.

Post-Installation Verification: Reconnect the battery and start the engine. Check for smooth idling, absence of misfires, and no illuminated check engine lights. Conduct a test drive at various speeds to confirm proper operation.

Set Replacement Recommendation: If multiple cylinders are experiencing ignition issues, consider replacing all coils as a set. This ensures uniform spark performance across all cylinders, prevents uneven power delivery, and extends the life of associated ignition components.

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Packaging,Storage & Logistics

The Ignition Coil OE:30735759is individually packed in anti-static sealed bags, cushioned with EPE foam inside sturdy corrugated cartons to prevent damage during transit. Outer cartons are clearly labeled with product details, weight, and handling symbols (anti-shock, moisture-proof, fragile) for easy identification and management.

Storage Conditions: Keep in original packaging in a clean, dry, well-ventilated warehouse at -5℃ to 45℃ with relative humidity ≤70%. Protect from direct sunlight, extreme heat, moisture, oil, and strong electromagnetic fields. Shelf life is 36 months under proper conditions.

Handling Instructions: Handle with care. Avoid dropping, crushing, or applying excessive force. Do not pull on the electrical connector or high-voltage tower, as this can damage internal wiring, insulation, or terminal pins.

Transportation: Suitable for road, sea, or air freight. Ensure packaging remains intact and protected from rain, snow, extreme heat, and direct sunlight during transit. Secure cartons properly in the transport vehicle to prevent shifting, collision, or stacking damage

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