Best Spark Plugs For 370Z: Compare 10 Replacement Sets

#1 · Best Overall

1. Sixity NGK Laser Iridium

Best for: NGK Laser Iridium six-pack.

Why it ranks #1: Lists genuine NGK laser iridium plugs for the 2009–2020 370Z 3.7L V6, with six plugs and original packaging and hardware.

NGK Laser Iridium plugs are sold here as a six-pack explicitly compatible with Nissan 370Z 3.7L V6 models from 2009 through 2020. That stated year range and full-set quantity make this a straightforward listing for owners seeking NGK-branded replacement parts for the named application.

The six-piece quantity suits the listed 3.7L V6 application, while the 2009–2020 fitment range gives buyers a clear boundary for vehicle selection. NGK is named as the manufacturer, and the listing identifies the parts as genuine NGK Laser Iridium plugs. It also says original packaging and hardware are included and describes the parts as direct replacements. Together, those details clarify the plug line, quantity, and stated replacement role without extending fitment beyond the specified 370Z years.

Skip it if you have a 2009 or 2010 370Z and prefer a listing limited to those years; Sixity Auto's B0827X1G6D NGK set names that narrower range.

This suits owners of 2009–2020 Nissan 370Z 3.7L V6 models seeking a six-piece NGK Laser Iridium replacement set. Treat the listed year range as the fitment boundary when selecting plugs.

Listed on Amazon as: 6 pc NGK Laser Iridium Spark Plugs for Nissan 370Z 3.7L V6 2009-20

#2 · Ruthenium Option

2. Sixity NGK Ruthenium HX

Best for: Full-set Ruthenium shoppers.

Why it ranks #2: A six-pack of genuine NGK Ruthenium HX plugs explicitly fits 2009–2020 Nissan 370Z 3.7L V6 models.

NGK Ruthenium HX plugs arrive as a six-piece set explicitly listed for Nissan 370Z 3.7L V6 models from 2009 through 2020. That combination gives owners seeking NGK-branded replacement parts a complete quantity for the stated engine and a clearly defined vehicle-year range.

The six-plug quantity matches the listed 3.7L V6 application, so buyers can source a full set from one listing rather than combine different quantities. Its Ruthenium HX designation identifies the plug line, while the compatibility details specifically cover Nissan 370Z models from 2009–2020. NGK is named as the manufacturer, and the listing calls these genuine NGK parts with original packaging and hardware. The seller also describes them as direct replacement parts, supporting a straightforward replacement workflow.

Skip it if you have a 370Z outside the listed 2009–2020 range; Sixity Auto's 2009–2010 NGK Laser Iridium set is also limited to early models.

This suits 370Z owners within the stated 2009–2020 3.7L V6 range who want six NGK Ruthenium HX replacement plugs together. Its fitment claim does not extend beyond those listed model years.

Listed on Amazon as: 6 pc NGK Ruthenium HX Spark Plugs for Nissan 370Z 3.7L V6 2009-20

#3 · Laser Iridium Set

3. Newparts NGK Laser Iridium

• Core Material: Iridium

Best for: 370Z Laser Iridium set.

Why it ranks #3: Provides six NGK Laser Iridium plugs, and its title specifically identifies fitment for the 370Z 3.7L V6.

Six NGK Laser Iridium plugs are identified for the Nissan 370Z 3.7L V6, giving owners a complete quantity in a vehicle-specific listing. The DF8H-11B-Set6 reference connects the set to a defined plug designation, while the listing also names several Infiniti 3.7L models.

The six-plug kit matches the quantity needed for the listed V6 application, keeping the replacement set together in one purchase. NGK Laser Iridium identifies the plug type, and the vehicle-specific fit description includes the 370Z alongside EX37, FX37, G37, and M37 3.7L V6 models. The product details give DF8H-11B-Set6 as the set reference, which can help distinguish it during parts selection. Kit contents are explicitly six NGK plugs, with no additional components specified.

Skip it if you want a listing that specifies Ruthenium HX plugs; Sixity Auto's six-piece NGK Ruthenium HX set names that plug line.

A practical match for 370Z 3.7L V6 owners seeking a six-piece NGK Laser Iridium set with a named set reference. Its stated kit content is plugs only, so source any other service items separately.

Listed on Amazon as: NGK Set of 6 Laser Iridium Spark Plugs 0.044 For 370Z EX37 FX37 G37 M37 3.7l V6

#4 · Broad Model Coverage

4. OYEAUTO Iridium 93501

• Core Material: Iridium
• Top Material Type: Iridium
• Compatible with Vehicle Type: Car

Best for: Multi-model iridium buyers.

Why it ranks #4: The listing specifies six iridium 93501 plugs and includes Nissan 370Z 3.7L V6 fitment spanning 2009–2020.

A six-pack of 93501 iridium plugs combines an M14x1.25 thread specification with a compatibility listing that includes Nissan 370Z 3.7L V6 models. The named thread and broad vehicle coverage give replacement shoppers concrete details to compare against their application before installation.

The six-piece count suits the listed 370Z V6 applications, while the M14x1.25 thread size provides a specific mechanical specification for parts comparison. The supplied vehicle details enumerate 370Z coupe and convertible variants across several model years, alongside other Nissan and Infiniti vehicles. That breadth may help owners servicing more than one listed vehicle, but the seller notes that the interface displays only some models. Review the detailed application information for the particular variant before choosing the set.

Skip it if you want a listing with a concise 2009–2020 370Z range; Sixity Auto's NGK Ruthenium HX set states those years directly.

Consider this set if its listed 370Z variant and M14x1.25 thread specification match your service needs, or if you maintain another named Nissan or Infiniti. The displayed vehicle list is not exhaustive.

Listed on Amazon as: 93501 Iridium Spark Plugs LKAR7BIX11S 6 Pack Fit for Nissan Infiniti

#5

5. BDFHYK Double Iridium

• Core Material: Iridium
• Top Material Type: Iridium
• Compatible with Vehicle Type: Car

Best for: Double-iridium six-pack shoppers.

Why it ranks #5: Its six double-iridium plugs are listed for Nissan 370Z models from 2009–2020 and reference replacement number DF8H11B.

BDFHYK identifies these as double-iridium 90174 plugs and lists Nissan 370Z compatibility from 2009–2020. The six-piece set also names a range of Infiniti 3.7L models, giving owners several clearly stated applications to compare while shopping for a complete replacement quantity.

The six-plug quantity aligns with a full set for the listed 370Z V6, while the double-iridium construction distinguishes the plug material. Its 90174 identification and stated replacement reference DF8H11B give buyers additional product details for parts comparison. The fitment information names 2009–2020 Nissan 370Z models plus several Infiniti applications, including G37 and Q50. BDFHYK also describes faster, more sensitive ignition jumps, though the listing does not provide a numerical performance measure.

Skip it if you need a listing that covers a 370Z beyond 2020; Sixity Auto's six-piece NGK Laser Iridium listing also states coverage only through 2020.

A fit to consider for owners of listed 2009–2020 370Z models who want six double-iridium plugs with 90174 and DF8H11B references. Its stated Nissan coverage does not include later model years.

Listed on Amazon as: BDFHYK 90174 Double Iridium Spark Plugs Compatible with INFINITI EX37 G37 M37 Q40 Q50 Q60 Q70 Q70L QX50 QX70,Compatible with Nissan 370Z 3.7L V6 Replacement for DF8H11B Set of 6

#6

6. A-Premium Double Iridium

• Core Material: Platinum
• Top Material Type: Iridium
• Compatible with Vehicle Type: Car

Best for: Specified-gap double iridium.

Why it ranks #6: The six-plug set is listed for Nissan 370Z 3.7L V6 models from 2009–2020, with a stated 0.044-inch gap.

A stated 0.044-inch gap and a six-piece double-iridium set give Nissan 370Z 3.7L V6 owners specific details for comparing replacement plugs. A-Premium also lists multiple Infiniti applications, making the application range and gap the key checks for buyers considering this set.

The six-plug quantity matches the listed 370Z V6 application, while the stated 0.044-inch gap offers a direct specification to compare during parts selection. Double-iridium construction identifies the plug type, and reference numbers 90174 and DF8H11B connect the listing to familiar application identifiers. The fitment details cover Nissan 2009–2020 V6 3.7L vehicles and several Infiniti models. The supplied specifications also list an M12 thread size, so buyers should compare that detail with their service requirements.

Skip it if you prefer an NGK-branded Laser Iridium set with a named 370Z application; Newparts lists six NGK Laser Iridium plugs for the 370Z 3.7L V6.

Consider this six-pack if the 0.044-inch gap, listed 370Z 3.7L V6 application, and double-iridium construction suit your needs. Pay particular attention to the supplied M12 thread specification when comparing parts.

Listed on Amazon as: A-Premium Double Iridium Spark Plugs Pack of 6, Fine Wire, 3.7L V6 Engine

#7

7. JC Whitney Double Iridium

Best for: Gap-specification comparison.

Why it ranks #7: Lists six double-iridium plugs compatible with Nissan 370Z and gives a 0.039–0.043-inch gap range and a one-year warranty.

Double iridium construction comes with a stated gap range of 0.039–0.043 inches, giving Nissan 370Z 3.7L V6 owners a concrete specification to compare during replacement planning. This six-piece JC Whitney set also lists multiple Infiniti 3.7L applications and a reference number.

The double-iridium material and stated 0.039–0.043-inch gap range provide useful details for buyers comparing replacement plugs with their service requirements. A six-piece quantity is listed for the 3.7L six-cylinder applications, including Nissan 370Z and named Infiniti models. The specifications also identify one ground electrode, a 1.04-inch reach, and a flat seat, which can support parts comparison before installation. An installation manual is included, giving the package an additional maintenance aid.

Skip it if you require a listed single 0.044-inch gap; A-Premium's double-iridium six-pack specifies that gap for Nissan 370Z applications.

This set fits shoppers comparing double-iridium plugs by gap, reach, and seat details, with the Nissan 370Z among its listed applications. Check that the stated gap range suits the service specification for your vehicle.

Listed on Amazon as: JC Whitney 6pcs Double Iridium Spark Plugs

#8

8. Sixity NGK Laser Iridium 2009–2010

• Core Material: Iridium
• Top Material Type: Ceramic, Metal
• Compatible with Vehicle Type: Car, Truck

Best for: Early-year 370Z owners.

Why it ranks #8: A six-pack of genuine NGK laser iridium plugs fits 2009–2010 370Z 3.7L V6 models, but its stated coverage is limited.

This six-pack of NGK Laser Iridium plugs is specifically listed for Nissan 370Z 3.7L V6 models from 2009 and 2010. Its narrow year coverage gives early-model owners a defined application to compare, while the named NGK plug type and six-piece quantity clarify the package.

The stated 2009–2010 coverage makes this listing distinct for owners of early 370Z models, rather than a broad year-range option. Six plugs are included for the listed 3.7L V6, and NGK Laser Iridium identifies the plug line. The seller describes the parts as genuine NGK direct replacements and says original packaging and hardware are included. Those details give buyers a clear quantity, product type, and replacement role, while the fitment description remains limited to the two named years.

Skip it if you own a 2011–2020 370Z; Sixity Auto's NGK Laser Iridium six-pack lists those later years through 2020.

A relevant option for 2009–2010 Nissan 370Z 3.7L V6 owners seeking six NGK Laser Iridium plugs in a direct-replacement listing. Its stated application does not cover later 370Z model years.

Listed on Amazon as: 6 pc NGK Laser Iridium Spark Plugs for Nissan 370Z 3.7L V6 2009-10

#9

9. KarParts360 NGK Ruthenium HX

• Core Material: Platinum
• Compatible with Vehicle Type: Motorcycle

Best for: Small-quantity NGK buyers.

Why it ranks #9: The NGK Ruthenium HX listing names 2009–2020 Nissan 370Z fitment, but supplies four plugs rather than a complete six-plug set.

NGK Ruthenium HX technology is offered here in a four-plug box for Nissan 370Z models listed from 2009 through 2020. The smaller quantity can suit partial replacement needs or buyers sourcing plugs in stages, while the named plug designation makes the product line clear.

The Ruthenium HX designation identifies NGK's plug line, and the listing describes the technology as intended for modern vehicles. Its stated 0.8-millimeter gap supplies a comparison point for maintenance planning, while the vehicle description names Nissan 370Z models from 2009–2020. The box contains four plugs, not a full six-plug quantity for the listed V6, so buyers completing a full-engine replacement need to account for the additional plugs separately.

Skip it if you need all six plugs together; Sixity Auto's NGK Ruthenium HX set is listed as a six-pack for 2009–2020 370Z models.

Choose this box when four NGK Ruthenium HX plugs suit your immediate replacement quantity and your 370Z falls within the listed years. For a full V6 service, plan for six plugs in total.

Listed on Amazon as: NGK For Nissan 370Z 2009-2020 Ruthenium HX Spark Plug Box of 4 LKAR8BHX | 91784

#10

10. OverstockDirect NGK Laser Iridium

• Core Material: Iridium
• Top Material Type: Iridium

Best for: OEM-oriented Infiniti owners.

Why it ranks #10: This six-pack of NGK DF8H11B plugs lists Infiniti 3.7L V6 applications, but the supplied compatibility text does not explicitly confirm 370Z fitment.

NGK Laser Iridium construction and a six-plug set give Infiniti 3.7L V6 owners an OEM-oriented replacement option. The listing names several Infiniti applications, including G37 and Q50, and describes NGK plugs as often specified as original equipment, making this set most relevant to buyers prioritizing that manufacturer connection.

The six-piece quantity provides a complete set for the listed V6 applications, while the DF8H-11B identification ties the plugs to a specific NGK Laser Iridium design. NGK is identified as the manufacturer and as an OEM spark-plug supplier, a useful distinction for buyers seeking an established original-equipment source. The supplied compatibility details name Infiniti models such as G37, Q50, and Q70; they do not establish Nissan 370Z fitment, so this entry is better suited to the listed Infiniti vehicles.

Skip it if you need a listing that explicitly names the Nissan 370Z; Sixity Auto NGK Laser Iridium plugs list 2009–2020 370Z coverage.

Choose this set if you own one of the listed Infiniti 3.7L V6 models and want six NGK Laser Iridium plugs with an OEM-oriented identity. The supplied fitment details do not confirm 370Z compatibility.

Listed on Amazon as: OverstockDirect NGK 90174 Laser Iridium Spark Plugs DF8H11B, 6 Pack