NGK 3903 Iridium IX Spark Plug
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Description
NGK Iridium IX spark plugs are designed for performance enthusiasts, delivering outstanding acceleration, high fuel efficiency, and durability.
- Offers extreme ignitability and exceptional anti-fouling properties.
- Features a tapered cut ground electrode for improved starting, idling, and throttle response.
- The Iridium fine wire center electrode provides durability six times harder than platinum.
- Iridium alloy's extremely high melting point is ideal for today's engines.
- For even greater performance, consider upgrading to an NGK Ruthenium HX plug.
For more technical details and/or manufacturers product guides, email us.
Most orders leave our warehouse within 1 business day unless otherwise noted.
*Add this item to the cart to estimate shipping costs and any applicable taxes.
Features
- Service Number:BPR6EIX-11
- Stock Number:3903
- Part Number:BPR6EIX-11
- Metallurgy:Single Iridium
- Short Style Spark Plug:No
- Resistance:5000.0 (82)
- Ground Electrode Tip Design:Taper Cut
- Ground Configuration:J-Gap
- Thread Type Standard:Metric
- Ground Electrode Core Material:Nickel
- Washer (s) Included:Yes
- Grade Type:Performance
- Electrical Terminal Type:Non-Removable Nut
- Center Electrode Core Material:Copper
- Center Electrode Tip Material:Iridium
- Pre-Gap Size 1:.044 (IN)
- Pre-Gap Size 2:1.1 (MM)
- Ground Electrode Quantity:1
- Hex Size:13/16"
- Insulator Height 1:2.20 (IN)
- Insulator Height 2:56.0 (MM)
- Manufacturer Heat Range:6
- Seat Type:Flat
- Reach 1:0.750 (IN)
- Reach 2:19.0 (MM)
- Insulator Material:Ceramic
- Resistor Type:Yes
- Skirt Length:0.0 (MM)
- Thread Size:M14 - 1.25
- Ground Electrode Tip Material:Nickel
- Skirt:No
- Center Electrode Insulator Tip Projection 1:0.14 (IN)
- Center Electrode Insulator Tip Projection 2:3.5 (MM)
- Center Electrode Design:Fine Wire
- Washer Type:Crush
- Center Electrode Projection:Mid Projection
- Interchange - ACDELCO:FR1LS 41-813 41-825 R43TSK FR1LS 41-825 41-813 R43TSK
- Interchange - ACDELCO GOLD/PROFESSIONAL:41-804 R42XLS 1 41-602 R42TS R44XLS 41-629 41-602 41-802 R43XLS 41-804 4 1 R44XLS 41-802 R43XLS 41-801 R42XLS 1 41-801 41-802 41-602 4 R42TS 41-804 R43XLS 41-629 41-801 R42TS 4 41-629 41-802 4 R44XLS R42XLS R43XLS 41-801 R42XLS 1 R42TS 41-629 41-602 41-804 R44XLS
- Interchange - ACDELCO GOLD/PROFESSIONAL CANADA:R43XLS 41-802 41-801 R42TS 41-629 R44XLS 1 R42XLS 41-602 41-804 4
- Interchange - ACDELCO SPECIALTY:4
- Interchange - ACDELCO SPECIALTY CANADA:4
- Interchange - AUTOLITE:XP63
- Interchange - AUTOPART INTERNATIONAL:NGK3903
- Interchange - AUTOZONE/ACDELCO:R42XLS 41-602 41-804 FR1LS 41-802 R43XLS 41-801 41-813 41-825 R43TSK R42TS 41-629 R44XLS
- Interchange - AUTOZONE/AUTOLITE:XP63 XP64
- Interchange - AUTOZONE/NGK:3903
- Interchange - BECK/ARNLEY:1765291 1765291
- Interchange - CHAMPION SPARK PLUGS:9804
- Interchange - DAIHATSU OE:999-06910-X9-002
- Interchange - E3 SPARK PLUGS:E3.46 E3.22 E3.34
- Interchange - IMC:739 37017 739 37017 131
- Interchange - INTERAMERICAN MOTOR CORPORATION:739 37017 BPR 6 EIX 11
- Interchange - MAZDA OE:1UN4-18-110
- Interchange - MITSUBISHI OE:MZ602061
- Interchange - NAPA CANADA/AUTOLITE SPARK PLUGS- AUT:AP63 XP63
- Interchange - NAPA CANADA/CHAMPION SPARK PLUG - CHA:9804
- Interchange - NAPA CANADA/NGK SPARK PLUGS - NGB:7133 3903
- Interchange - NAPA/AUTOLITE - AUT:XP63
- Interchange - NAPA/CHAMPION SPK PLUGS-CHA:9804
- Interchange - NAPA/E3 SPARK PLUGS-EEE:E346
- Interchange - NAPA/NGK SPARK PLGS-OXYGEN SENS-NGK:3903 7133
- Interchange - NGK CANADA BASE NUMBERS:BPR6EIX-11 3903
- Interchange - NGK CANADA STOCK NUMBERS:3903
- Interchange - NGK CANADA/NTK SENSORS:3903
- Interchange - NGK USA BASE NUMBERS:BPR6EIX-11
- Interchange - NISSAN:BY481-BPR6E
- Interchange - NISSAN OE:BY481-BPR6E
- Interchange - SUZUKI OE:99000-79K60-PR6
- Interchange - WD EXPRESS:739 37017 131
- Applications 1:Chevrolet (9), 1987 - 2000
- Applications 2:Chevrolet (1), 1992 - 1992
- Applications 3:Chrysler (2), 1987 - 1988
- Applications 4:Dodge (45), 1978 - 1993
- Applications 5:Eagle (10), 1989 - 1994
- Applications 6:Ford (10), 1988 - 1997
- Applications 7:Geo (9), 1989 - 1997
- Applications 8:Geo (10), 1990 - 1997
- Applications 9:Honda (8), 1984 - 1987
- Applications 10:Hyundai (25), 1986 - 1998
- Applications 11:Isuzu (35), 1981 - 1993
- Applications 12:Mazda (1), 1976 - 1976
- Applications 13:Mitsubishi (66), 1983 - 1996
- Applications 14:Mitsubishi (5), 1992 - 1996
- Applications 15:Nissan (16), 1975 - 1988
- Applications 16:Nissan (10), 1980 - 1984
- Applications 17:Plymouth (41), 1976 - 1994
- Applications 18:Pontiac (12), 1987 - 2000
- Applications 19:Pontiac (4), 1994 - 1997
- Applications 20:Subaru (5), 1987 - 1995
- Applications 21:Subaru (59), 1980 - 1994
- Applications 22:Subaru (4), 1988 - 1991
- Applications 23:Suzuki (3), 1992 - 1994
- Applications 24:Suzuki (6), 1989 - 1994
Reviews
Details
Product Details:
- Manufacturer:NGK
- Part Number:3903
- UPC:087295139035
- Sold in QTY:1
- Condition:New
- Country of Origin:Japan
Prop65
WARNING: May cause Cancer and/or Reproductive Harm - www.P65Warnings.ca.gov
About California Proposition 65
Availability: 40 get them while you can!
Ships in 1 business day
What customers are saying
- ★★★★★Thank you so much,— Jim, CA
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- ★★★★★They were very helpful, both online and over the telephone.— Karen, IL
- ★★★★★Thank you for double checking the fit. The Part Fits Perfectly! Thank you for all of your help!!!— John, CA
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Questions shoppers ask
See all FAQsHow soon does it ship?
Most orders leave our warehouse within 1 business day unless otherwise noted. Add the item to your cart to see shipping cost and any tax.
Can I return it?
Most items can be returned within 30 days of delivery if they are unused and in their original, undamaged packaging. Email us for a Return Authorization (RA) number first, and make sure the item reaches our warehouse within those 30 days. A 15% restocking fee applies and you pay return shipping, unless the item is defective or the mistake was ours. Special orders and items marked No Return can't be returned. Full return policy.
Do you offer quantity discounts?
Many items do. When this one has them, the price breaks are listed with the price above, and the price updates as you change the quantity. Need a larger quantity than we show? Ask us.
Your prices are so good, is it new?
Yes. This item is new and in its original NGK packaging unless the description above says otherwise.