NGK
NGK Iridium IX Spark Plugs ZFR6FIX-11 / 6441 – Set of 4 – Unused
NGK Iridium IX Spark Plugs ZFR6FIX-11 / 6441 – Set of 4 – Unused
- Condition Grade
- View Complete Condition Guide
Open Box
Packaging has been opened, replaced, or shows handling. The item may be unused or minimally handled. Open Box does not automatically mean Fully Tested.
Condition Grade describes cosmetic and physical state. Functionality is described separately under Testing Status.
- Availability
- Only 1 available
Condition describes appearance. Testing describes functionality.
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Condition Details
Condition grade: Open Box
Description & specifications
NGK Iridium IX Spark Plugs – Set of 4 (6441 / ZFR6FIX-11)
Set of four NGK Iridium IX spark plugs, part number ZFR6FIX-11 (NGK stock number 6441), with the original individual boxes and outer packaging shown.
Condition: Purchased new, never installed or used, and stored in a garage for several years. Packaging has been opened for photos and shows some handling and storage wear.
Specifications:
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Fine-wire iridium center electrode
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Factory preset gap: 0.044" (1.1 mm)
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Thread size: M14 x 1.25
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Thread reach: 19 mm
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Hex size: 5/8" (16 mm)
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Gasket seat
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NGK heat range: 6
Included: Four unused NGK spark plugs with the pictured original packaging. Sold together as one complete set.
Fitment: Please verify NGK ZFR6FIX-11 / 6441 against your vehicle's exact year, make, model, engine, and spark plug requirements before purchasing. Confirm the required electrode gap before installation.
Please review all photos for the exact items included and packaging condition.
Shipping & Pickup
Shipping
Rates and options
Handled within 3 business days. Carrier transit time is additional.
Shipping options and rates are confirmed at checkout.
Returns
Returns accepted within 14 days of delivery on eligible items. Items that arrive damaged or materially not as described are eligible for a full refund, including applicable return shipping. Other returns may be subject to item-specific eligibility and must be returned in the same condition received with all included components. See our Return Policy for full details.