1991 Ford Ranger Spark Plugs
More 1991 Ford Ranger Spark Plugs
Find your specific 1991 Ford Ranger original or aftermarket Spark Plugs below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.
Essential 1991 Ford Ranger Spark Plugs
DENSO – U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, T16EPR-U (Part No.5022)
from
$3.79
U-Groove design provides better ignitability for increased engine efficiency.
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Product Features:
- Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
- Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
- Wide range of part numbers for thousands of applications, including classic and collector cars
- Lasts twice as long as most conventional plugs
- 100% pre-fired to assure reliable operation
- U-Groove Conventional
Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP605)
from
$4.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite Double Platinum or Iridium XP spark plugs for increased performance.
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Product Features:
- High nickel alloy side electrode maintains precise gap
- Full platinum tip assures virtually no gap erosion for long life
- Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
ACDelco – Double Platinum Spark Plug: Original Equipment Replacement (Part No.41-950)
from
$9.79
ACDelco GM Original Equipment Double Platinum Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. ACDelco GM Original Equipment parts are the true OE parts installed during the production or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.
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Product Features:
- One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
- Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
- Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
- ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
- Copper Core: Designed with a copper core to provide excellent heat transfer and electrical conductivity.
- Conical Seat Type: Equipped with a conical seat type for a secure fit and optimal performance.
Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5143)
from
$9.99
Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.
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Product Features:
- 0.6 mm finewire design improves ignitability
- Patented V-trimmed platinum sidewire technology resists wear
- OE equivalent design is engineered for every engine
- Designed for better overall durability with virtually no gap erosion
Motorcraft – Standard Spark Plug: Enhances Durability & Reduces Fuel Consumption (Part No.SP-413)
from
$4.99
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. Backed by Motorcraft’s Service Parts Warranty, they are an exact fit for Ford, Lincoln, and Mercury vehicles and are resistant to oxidation and arc erosion. The multi-rib insulator protects against misfire, and they offer service intervals of up to 100,000 miles. Designed with high-quality materials, Motorcraft Spark Plugs provide reliable performance for almost any application and help prevent false check engine lights. With copper center and ground electrode tips, these spark plugs ensure your vehicle runs as it did when it was first manufactured.
Product Features:
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Product Features:
- Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
- Backed by Motorcraft’s Service Parts Warranty
- Exact fit for Ford, Lincoln and Mercury vehicles
- Resistant to oxidation and arc erosion.
- Multi-rib insulator protects against misfire.
- Service intervals of up to 100,000 miles.
- Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
- Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
- Motorcraft ignition components help prevent false check engine lights.
- Reduces Fuel Consumption: Specifically matched to engines to optimize fuel efficiency, helping you save on fuel costs.
DENSO – U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, T20EPR-U (Part No.5032)
from
$2.79
U-Groove design provides better ignitability for increased engine efficiency.
Product Features:
See More
Product Features:
- Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
- Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
- Wide range of part numbers for thousands of applications, including classic and collector cars
- Lasts twice as long as most conventional plugs
- 100% pre-fired to assure reliable operation
- U-Groove Conventional
NGK – G-Power Spark Plug: Single Platinum Tip Design, TR6GP (Part No.5141)
from
$5.99
NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency
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Product Features:
- SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
- PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
- TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
- RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs
Autolite – Racing Resistor Spark Plug: Enables Performance, Handles Intense Conditions (Part No.AR103)
from
$4.99
The ground electrode is cut-back from the center electrode to provide a gap, and its concave face ensures a constant gap to the center electrode. This design opens the spark face for better ignitability of the flame kernel and retains less heat, transferring it to the shell faster to reduce the risk of pre-ignition. Dyno testing has shown proven power gains, making it ideal for all aftermarket cylinder heads used in various racing venues, including oval and road racing. The cut-back ground electrode is an evolution from the practice of grinding back the side electrode, and it features a tapered seat type for optimal performance.
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Product Features:
- Opens spark face for better ignitability of flame kernel
- Retains less heat, transfers heat to shell faster – reduces risk of pre-ignition
- Dyno testing has shown proven power gains
- Cut-back ground electrode evolved from practice of grinding back the side electrode
- Optimal Performance: Features a tapered seat type for optimal performance in various racing venues, including oval and road racing.
- Durable Design: Specifically designed to handle intense conditions, making it suitable for all aftermarket cylinder heads used in racing.
Motorcraft – Spark Plug (AGSF52C) (Part No.SP-442)
from
$3.29
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles engineered to meet strict Ford engineering standards to provide original equipment performance and reliability. Delivering performance, reliability and confidence, Motorcraft spa
Product Features:
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Product Features:
- Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
- Backed by Motorcraft’s Service Parts Warranty
- Exact fit for Ford, Lincoln and Mercury vehicles
- Resistant to oxidation and arc erosion.
- Multi-rib insulator protects against misfire.
- Service intervals of up to 100,000 miles.
- Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
- Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
- Motorcraft ignition components help prevent false check engine lights.
Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RS10PYC4 (Part No.3401)
from
$4.49
Champion Platinum Power spark plugs deliver powerful performance. Made from exclusive Heat-Active alloy, a fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus.
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Product Features:
- Platinum Power- Premium Spark Plug. Powerful Performance.
- Platinum center electrode for long life
- Fine-wire center electrode for greater ignitability
- V-trimmed ground electrode promotes sharper spark focus
- Heat-Active alloy allows electrodes to reach optimal temperature
- Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
DENSO – Iridium Power Spark Plug (Part No.F1000316469ND)
from
$13.24
DENSO Iridium Power spark plugs represent a performance breakthrough. The laser-welded center electrode is only 0.4mm in diameter – the slimmest iridium electrode in the industry. The taper-cut side electrode complements the design, delivering reliable spark energy under the most gruelling pressures and temperatures. DENSO engineers used the power of this miraculous metal to produce an iridium center electrode that is only 0.4mm in diameter. With its superior thermal qualities, this whisker-fine electrode is capable of taking the most extreme heat and punishment. This breakthrough was matched to one of DENSO’s most famous innovations, the patented U-Groove ground electrode. The combination of these two features resulted in the Iridium Power® plug, one of the most advanced and innovative spark plugs on the market.
Product Features:
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Product Features:
- Tapered cut, U-Groove ground electrode
- 0.4mm iridium center electrode
- 360-degree laser welding assembly process
- Required ignition voltage reduced
- Unsurpassed center electrode durability
- Available for many performance and power sports applications, including Corvette, Viper, and Harley-Davidson The Iridium Power plug delivers greater spark energy while demanding significantly less secondary required voltage from the ignition system.
NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, LTR6IX (Part No.94374)
from
$11.49
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.
Product Features:
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Product Features:
- SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
- IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
- TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
- Outstanding Acceleration and High Fuel Efficiency: NGK Iridium IX spark plugs are engineered to deliver superior acceleration and enhance fuel efficiency, making them ideal for performance enthusiasts.
- Extreme Ignitability and Anti-Fouling: These spark plugs offer exceptional ignitability and are designed to resist fouling, ensuring reliable performance in various driving conditions.
- Improved Starting, Idling, and Throttle Response: The tapered cut ground electrode design enhances starting, idling, and throttle response, contributing to a smoother driving experience.
Motorcraft – Spark Plug (AWSF44CA) (Part No.SP-409-A)
from
$5.29
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles engineered to meet strict Ford engineering standards to provide original equipment performance and reliability. Delivering performance, reliability and confidence, Motorcraft spa
Product Features:
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Product Features:
- Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
- Backed by Motorcraft’s Service Parts Warranty
- Exact fit for Ford, Lincoln and Mercury vehicles
- Resistant to oxidation and arc erosion.
- Multi-rib insulator protects against misfire.
- Service intervals of up to 100,000 miles.
- Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
- Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
- Motorcraft ignition components help prevent false check engine lights.
Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.765)
from
$3.49
With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite continues to set the standard in spark plug technology. Designed and engineered in the USA, these spark plugs feature a copper cored center electrode for higher thermal conductivity and a specially engineered high nickel alloy center and ground electrode for extended life. The high alumina ceramic ensures high dielectric strength, while the leak-proof, heat-fused internal seal guarantees durability. Additionally, the multi-rib insulator prevents flash-over, and the tapered seat type enhances performance.
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Product Features:
- Copper cored center electrode for higher thermal conductivity
- Specially engineered high nickel alloy center and ground electrode for extended life
- High alumina ceramic for high dielectric strength
- Leak proof, heat fused internal seal for durability
- Multi-rib insulator prevents flash-over
- Quick Starts and Smooth Acceleration: The Autolite Copper Spark Plug is engineered to deliver quick starts and smooth acceleration, enhancing your driving experience.
- Good Fuel Economy: Designed to optimize fuel efficiency, these spark plugs help you get the most out of every gallon.
- Enhanced Performance with Tapered Seat Type: The tapered seat type design enhances the performance of the spark plug, ensuring a reliable and efficient operation.
NGK – SPARK PLUG (Part No.95927)
from
$11.49
SPARK PLUG
Motorcraft – Standard Spark Plug: Enhances Durability & Reduces Misfires (Part No.SP-400)
from
$5.99
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. They are resistant to oxidation and arc erosion, feature a multi-rib insulator to protect against misfire, and have service intervals of up to 100,000 miles. Designed with high-quality nickel materials, they ensure reliable performance for almost any application and help prevent false check engine lights. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles, delivering the same quality as the original components installed during manufacturing.
Product Features:
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Product Features:
- Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
- Backed by Motorcraft’s Service Parts Warranty
- Exact fit for Ford, Lincoln and Mercury vehicles
- Resistant to oxidation and arc erosion.
- Multi-rib insulator protects against misfire.
- Service intervals of up to 100,000 miles.
- Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
- Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
- Motorcraft ignition components help prevent false check engine lights.
- High-Quality Nickel Materials: Constructed with nickel for both the center and ground electrode tips, these spark plugs offer reliable performance and resistance to oxidation and arc erosion.
Motorcraft – Original Equipment Finewire Double Platinum Spark Plug (Part No.F1000394070MTR)
from
$8.69
Motorcraft Original Equipment Finewire Double Platinum spark plugs are designed, engineered and recommended by Ford Motor Company.
Product Features:
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Product Features:
- Same part installed when the engine rolled off the assembly line
- 100,000-mile service interval
- Iridium-enhanced center electrode for improved durability and wear resistance
- .6mm finewire design improves ignitability
- Designed for overall durability with virtually no gap erosion
- Fit most automotive and many specialty applications
- Help improve performance and resist erosion
- Available as replacement spark plugs for older model-year vehicle
Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP5144)
from
$4.79
With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite delivers exceptional performance and durability. Designed and engineered in the USA, these spark plugs feature a high nickel alloy side electrode that maintains a precise gap, and a full platinum tip that ensures virtually no gap erosion for a longer lifespan. The necked-down center electrode fires quicker and cleaner with less voltage, resulting in easier starts, quicker acceleration, and improved fuel economy compared to standard plugs. The tapered seat type further enhances the plug’s reliability and performance.
Product Features:
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Product Features:
- High nickel alloy side electrode maintains precise gap
- Full platinum tip assures virtually no gap erosion for long life
- Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
- Tapered Seat Type: Enhances the reliability and performance of the spark plug.
Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5144)
from
$9.99
Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.
Product Features:
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Product Features:
- 0.6 mm finewire design improves ignitability
- Patented V-trimmed platinum sidewire technology resists wear
- OE equivalent design is engineered for every engine
- Designed for better overall durability with virtually no gap erosion
Accel – Spark Plug (Part No.P526S)
from
$27.49
ACCEL’s patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around.ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
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Product Features:
- Double Platinum Electrode for long life
- Shorty Spark Plugs For Tubular Exhaust Headers
- Eliminates Dimpling Headers For Added Clearance
- Improves Spark Plug Access To Fit Socket Or Wrench
- Shorter Overall Plug Length Vs. OE Style Plug
- Projected Tip
- Helps Eliminate Burned Spark Plug Boots
- Shorty Header Spark Plug
- Machine rolled 14mm threads protect your valuable cylinder heads
NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, TR55-1 (Part No.2683)
from
$4.49
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
Product Features:
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Product Features:
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
- RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
- NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
- OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.
- V-Groove Tip Design: The unique V-Groove tip design of the TR55-1 model enhances ignitability and overall engine performance.
Motorcraft – Original Equipment Finewire Single Platinum Spark Plug (Part No.F1000390401MTR)
from
$6.88
Motorcraft Original Equipment spark plugs are designed, engineered and recommended by Ford Motor Company.
Product Features:
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Product Features:
- Same part installed when the engine rolled off the assembly line
- 100,000-mile service interval
- Iridium-enhanced center electrode for improved durability and wear resistance
- .6mm finewire design improves ignitability
- Designed for overall durability with virtually no gap erosion
Champion – Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RS12PYP (Part No.7401)
from
$3.99
Champion® Double Platinum Power™ spark plugs deliver more powerful performance. Featuring exclusive Heat-Active™ alloy, platinum fine wire center electrode and platinum pad ground electrode provide maximum life and sharper spark focus.
Product Features:
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Product Features:
- Double Platinum Power – Premium Spark Plug. More Powerful Performance.
- Platinum center and ground electrode for greater wear resistance
- Maintains stable operating temperature under all engine loads
- Fine-wire center electrode for greater ignitability
- V-trimmed ground electrode promotes sharper spark focus
- Heat-Active™ alloy allows electrodes to reach optimal temperature
Motorcraft – Spark Plug (AGSF32FECF4) (Part No.SP-439-A)
from
$7.79
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles engineered to meet strict Ford engineering standards to provide original equipment performance and reliability. Delivering performance, reliability and confidence, Motorcraft spa
Product Features:
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Product Features:
- Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
- Backed by Motorcraft’s Service Parts Warranty
- Exact fit for Ford, Lincoln and Mercury vehicles
- Resistant to oxidation and arc erosion.
- Multi-rib insulator protects against misfire.
- Service intervals of up to 100,000 miles.
- Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
- Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
- Motorcraft ignition components help prevent false check engine lights.
DENSO – Iridium Power Spark Plug (Part No.F1000131221ND)
from
$12.52
DENSO Iridium Power spark plugs represent a performance breakthrough. The laser-welded center electrode is only 0.4mm in diameter – the slimmest iridium electrode in the industry. The taper-cut side electrode complements the design, delivering reliable spark energy under the most gruelling pressures and temperatures. DENSO engineers used the power of this miraculous metal to produce an iridium center electrode that is only 0.4mm in diameter. With its superior thermal qualities, this whisker-fine electrode is capable of taking the most extreme heat and punishment. This breakthrough was matched to one of DENSO’s most famous innovations, the patented U-Groove ground electrode. The combination of these two features resulted in the Iridium Power® plug, one of the most advanced and innovative spark plugs on the market.
Product Features:
See More
Product Features:
- Tapered cut, U-Groove ground electrode
- 0.4mm iridium center electrode
- 360-degree laser welding assembly process
- Required ignition voltage reduced
- Unsurpassed center electrode durability
- Available for many performance and power sports applications, including Corvette, Viper, and Harley-Davidson The Iridium Power plug delivers greater spark energy while demanding significantly less secondary required voltage from the ignition system.
Champion – Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RS9PYP4 (Part No.7304)
from
$7.29
Champion® Double Platinum Power¿ spark plugs deliver more powerful performance. Featuring exclusive Heat-Active¿ alloy, platinum fine wire center electrode and platinum pad ground electrode provide maximum life and sharper spark focus.
Product Features:
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Product Features:
- Double Platinum Power – Premium Spark Plug. More Powerful Performance.
- Platinum center and ground electrode for greater wear resistance
- Maintains stable operating temperature under all engine loads
- Fine-wire center electrode for greater ignitability
- V-trimmed ground electrode promotes sharper spark focus
- Heat-Active┐ alloy allows electrodes to reach optimal temperature
Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP105)
from
$6.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.
Product Features:
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Product Features:
- Works to optimize engine performance for a longer life and improved fuel economy
- OE design
- Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
- Platinum ball welding process provides a consistent point of contact for enhanced adhesion
Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP104)
from
$4.79
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite Double Platinum or Iridium XP spark plugs for increased performance.
Product Features:
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Product Features:
- High nickel alloy side electrode maintains precise gap
- Full platinum tip assures virtually no gap erosion for long life
- Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
Popular 1991 Ford Ranger Spark Plugs Categories
1991 Ford Ranger Spark Plugs
Maybe you’re in the middle of a full rebuild of that 1991 Ford Ranger. Maybe you just need a couple of Spark Plugs. Either way, Advance Auto Parts has 88 different Spark Plugs in our inventory ranging from $2.79 to $27.49. That means you can find the exact parts or products you need to keep that 1991 Ford Ranger running smoothly.
Spark Plugs are only as good as their brand. We stock 11 different brands to make sure you have plenty of trusted parts to choose from for your 1991 Ford Ranger. NGK, Autolite, and Motorcraft are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!
We know you’ll find the perfect Spark Plugs for your 1991 Ford Ranger, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 4,879 reviews in this category, some of the top rated parts include Double Platinum Spark Plug: Enhances Durability & Reduces Misfires with 4.8 stars and Iridium IX Spark Plug: Single Iridium Fine Wire, TR55IX with 4.8 stars.
So if you’re in the market for aftermarket Spark Plugs to keep your 1991 Ford Ranger rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!
Spark Plugs Brands To Make Your 1991 Ford Ranger Last
Simple repair, complete replacement, or a full rebuild. No matter the job, your 1991 Ford Ranger demands trusted brand parts and products to keep it running. Many trusted brands of Spark Plugs make up Advance Auto Parts’ inventory, and all are ready to help make your Ranger the best it can be. Be sure to browse some of our top Spark Plugs brands and parts.
Popular Dorman – Help Spark Plugs
We carry Dorman – Help parts in our stock across Spark Plugs categories, plus more. For a 1991 Ford Ranger, our most popular Dorman – Help Spark Plugs include:
Top 1991 Ford Ranger Spark Plugs from NGK
NGK products are another trusted brand when it comes to Spark Plugs for your 1991 Ford Ranger. Popular NGK parts include:
FAQs for 1991 Ford Ranger Spark Plugs
What are the most purchased Spark Plugs for the 1991 Ford Ranger?
Out of 88 Spark Plugs for the 1991 Ford Ranger, the most popular in our inventory are:
from
$4.79
(203)
Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration
Spark Plugs
What are the top-rated 1991 Ford Ranger Spark Plugs?
Top-rated Spark Plugs for your 1991 Ford Ranger based on customer reviews/ratings are:
from
$7.29
(195)
Double Platinum Spark Plug: Enhances Durability & Reduces Misfires
“2004 Mustang overhaul”
from
$11.99
(103)
Iridium IX Spark Plug: Single Iridium Fine Wire, TR55IX
“2000 GT Mustang had bad misfire These plugs made the car run like new again.OE plugs just would not last.”
from
$7.29
(98)
DiamondFIRE Automotive Spark Plug: More Power, Saves Gas
“These are awesome. They are in my 02 sierra 4.8l. And i have 4mpg better than before.”
