Description
NGK Racing Series plugs are engineered to withstand the harshest engine conditions.
Product Overview
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
Features and Benefits
- RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
Product Details
| Center Electrode Core Material: | Copper |
|---|---|
| Center Electrode Tip Material: | Iridium |
| Description: | NGK Iridium IX Spark Plug |
| Electrical Terminal Type: | Non-Removable Nut |
| Ground Configuration: | Standard |
| Ground Electrode Core Material: | Nickel |
| Ground Electrode Quantity: | 1 |
| Ground Electrode Tip Design: | Taper Cut |
| Hex Size: | 5/8 |
| Insulator Height: | 55.00 |
| Manufacturer Heat Range: | 4 |
| Part Number: | UR4IX |
| Pre-Gap Size: | .040 |
| Reach: | .46 |
| Resistance: | 5000.0 |
| Seat Type: | Tapered |
| Stock Number: | 7401 |
| Thread Diameter: | 14.00 |
Application Summary
CHECKER 1978-70; CHEV 1993-70; CHR/DOD/PLY 1987-74; FORD/LIN/MERC 1996-69; GM 1993-67; JEEP 1971-69, I/O - 2000-99 KODIAK, 1998-78 OMC, PE ENGINES - HON, KOHLER, MITS, SUBARU-ROBIN, OPE - VARIOUS
Part Type
Spark Plug
Features
- Copper core aids in heat removal
- Corrugated ribs prevent flashover
- Pure alumina silicate ceramic insulator provides superior strength and better heat transfer
- RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
- Special insulator nose configurations improve throttle response
- Triple seals prevent leakage
Specifications
- Center Electrode Core Material:
- Copper
- Center Electrode Tip Material:
- Iridium
- Description:
- NGK Iridium IX Spark Plug
- Electrical Terminal Type:
- Non-Removable Nut
- Ground Configuration:
- Standard
- Ground Electrode Core Material:
- Nickel
- Ground Electrode Quantity:
- 1
- Ground Electrode Tip Design:
- Taper Cut
- Hex Size:
- 5/8
- Insulator Height:
- 55.00
- Manufacturer Heat Range:
- 4
- Part Number:
- UR4IX
- Pre-Gap Size:
- .040
- Reach:
- .46
- Resistance:
- 5000.0
- Seat Type:
- Tapered
- Stock Number:
- 7401
- Thread Diameter:
- 14.00
Reference Information
| Brand Name/s | Ngk |
|---|---|
| StreetFX SKU | ngk7401 |
| SFX Item ID | 4150129 |
| Supplier Item Code | 4150129 |
| Manufacturer SKU | 7401 |
| Manufacturer UPC | 87295174012 |
| Alternative References | (UR4IX) |
Compatibility
CHECKER 1978-70; CHEV 1993-70; CHR/DOD/PLY 1987-74; FORD/LIN/MERC 1996-69; GM 1993-67; JEEP 1971-69, I/O - 2000-99 KODIAK, 1998-78 OMC, PE ENGINES - HON, KOHLER, MITS, SUBARU-ROBIN, OPE - VARIOUS
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