Best Spark Plugs For Gmc Acadia: Compare Fitments and Materials

#1 · Best Overall

1. Sixity Auto NGK Laser Iridium

• Core Material: Iridium
• Top Material Type: Ceramic, Metal
• Thread Size: 14mm (5/16 inch)

Best for: Six-plug Laser Iridium V6 set.

Why it ranks #1: The listing specifies genuine NGK Laser Iridium plugs and a six-plug set for 3.6L V6 Acadia models from 2007–2016.

NGK Laser Iridium plugs in a six-piece set are listed for GMC Acadia 3.6L V6 models from 2007 through 2016. The vehicle-specific year and engine coverage, combined with a stated 14mm thread and 0.04-inch gap, gives V6 owners concrete details for parts selection.

Six plugs provide the stated quantity for the listed Acadia 3.6L V6 application, making the package relevant to a complete replacement job. The Laser Iridium designation identifies the plug line, while the 14mm thread and 0.04-inch gap provide dimensions to compare with vehicle service specifications. Genuine NGK parts, original packaging and hardware are included, and the listing calls them direct-replacement auto parts. Its coverage is specifically for the listed V6 years rather than the later 2.5L or 2.0L engines.

Skip it if you have a 2017–2020 2.5L Acadia; Sixity Auto's NGK Iridium IX B0D1S69TKH lists that four-cylinder application.

Choose this set if your GMC Acadia is a listed 2007–2016 3.6L V6 and you need six NGK Laser Iridium plugs. The stated application does not cover the newer four-cylinder Acadia engines.

Listed on Amazon as: 6 pc NGK Laser Iridium Spark Plugs for GMC Acadia 3.6L V6 2007-16

#2 · V6 Iridium Set

2. Sixity Auto NGK Iridium IX

• Core Material: Iridium
• Top Material Type: Iridium
• Thread Size: Regular Mouth

Best for: Older 3.6L V6 replacement.

Why it ranks #2: This genuine NGK Iridium IX six-pack explicitly fits 3.6L V6 Acadia models from 2007–2016 and lists a 0.04-inch gap.

A six-plug NGK Iridium IX set is the key fit for Acadia owners with the 3.6L V6 from 2007 through 2016. Its vehicle-specific listing and direct-replacement description support a straightforward parts match, while the iridium construction and 0.04-inch gap identify the plug type and specification supplied.

The six-piece quantity matches the listed V6 application, so the set covers a full plug replacement rather than leaving you to source individual plugs. NGK Iridium IX construction pairs an iridium core with the specified 0.04-inch gap, giving the buyer concrete details to check against service requirements. Genuine NGK parts, original packaging and hardware are included, and the listing identifies these as direct-replacement auto parts. Its stated Acadia coverage is limited to 3.6L V6 models from 2007–2016.

Skip it if you have a 2.5L Acadia; the NGK Iridium IX four-pack B0D1S69TKH lists 2017–2020 2.5L L4 coverage.

This set suits owners servicing a 2007–2016 GMC Acadia with the listed 3.6L V6 who want six NGK Iridium IX plugs together. Its application is not the later 2.5L four-cylinder Acadia.

Listed on Amazon as: 6 pc NGK Iridium IX Spark Plugs compatible with GMC Acadia 3.6L V6 2007-16

#3 · V6 Platinum Set

3. Sixity Auto Champion Platinum

• Core Material: Platinum
• Top Material Type: Nickel
• Thread Size: 14mm

Best for: Platinum V6 service set.

Why it ranks #3: The Champion Platinum six-pack is listed for 3.6L V6 Acadia models from 2007–2016, with a 0.04-inch listed gap.

Six Champion Platinum plugs cover the stated 2007–2016 GMC Acadia 3.6L V6 application, giving owners a complete set for the listed engine. The platinum core, 14mm thread and 0.04-inch specified gap make the plug material and key installation dimensions clear before a maintenance job.

The six-piece set corresponds to the listing's 3.6L V6 Acadia application, so buyers can source the stated quantity in one purchase. A platinum core and 14mm thread provide useful component and dimensional information for comparing against the vehicle's service requirements; the specification lists a 0.04-inch gap, while the additional description cites 0.043 inch. Genuine Champion parts and durable precious-metal construction are described, but that gap discrepancy merits attention during parts selection.

Skip it if you need a stated iridium set; the Sixity Auto NGK Iridium IX B0836NWQ2D lists that material for the same V6 years.

Choose this Champion set if your Acadia is among the listed 2007–2016 3.6L V6 models and platinum construction suits your replacement choice. Check the conflicting listed gap figures against the required specification before installation.

Listed on Amazon as: 6 pc Champion Platinum Spark Plugs for GMC Acadia 3.6L V6 2007-16

#4 · 2.5L NGK Set

4. Sixity Auto NGK Iridium IX 2.5L

Best for: 2.5L four-cylinder replacement.

Why it ranks #4: This four-pack is explicitly listed for 2.5L L4 Acadia models from 2017–2020 and identifies the plugs as genuine NGK Iridium IX.

A four-piece NGK Iridium IX pack is listed specifically for GMC Acadia 2.5L L4 models from 2017 through 2020. That defined engine and year fitment makes the set relevant to owners of the newer four-cylinder Acadia, with genuine NGK parts and included hardware noted in the listing.

The listed four-plug quantity aligns with the specified Acadia 2.5L L4 application, giving owners a set for that engine rather than the six-plug V6. NGK Iridium IX identification and the direct-replacement description support a focused parts choice, while original packaging and hardware are included. The supplied product details do not state thread size or gap, so buyers comparing installation specifications will need information beyond this listing before proceeding.

Skip it if you have a 2.0L Acadia from 2020–2023; ENA's four-pack B0CYP6HLXM lists that L4 application.

This pack fits buyers seeking NGK Iridium IX plugs for a listed 2017–2020 GMC Acadia 2.5L L4. The listing omits thread and gap details, so those specifications are not available here for installation planning.

Listed on Amazon as: 4 pc NGK Iridium IX Spark Plugs compatible with GMC Acadia 2.5L L4 2017-20

#5

5. A-NAFTULY Iridium 96329

• Core Material: Iridium
• Top Material Type: Iridium
• Thread Size: 14mm

Best for: 2.5L Acadia four-plug set.

Why it ranks #5: The four-pack lists 2017–2020 GMC Acadia 2.5L fitment, a 12-month warranty, and reference number 96329.

A four-plug iridium set lists GMC Acadia 2.5L coverage for 2017–2020, a specific match for owners working on that four-cylinder application. Its reference numbers and 14mm thread add useful identification details, while the listed fitment also spans selected Chevrolet, Buick and Cadillac 2.5L vehicles.

The four-pack suits the quantity associated with the listed 2.5L L4 application, and its vehicle coverage explicitly includes 2017–2020 GMC Acadia 2.5L models. The 14mm thread and 0.04-inch specification give installers dimensions to compare with service requirements. Iridium is listed as the core and top material, while an additional verified fact identifies a platinum center-electrode core and a 0.044-inch gap. That specification difference is worth resolving before installation.

Skip it if you have a 2.0L Acadia; the ENA four-pack B0CYP6HLXM lists 2020–2023 2.0L L4 coverage.

Consider this A-NAFTULY set for a listed 2017–2020 GMC Acadia 2.5L when four plugs match your service needs. Its gap details conflict, so resolve the correct specification before fitting.

Listed on Amazon as: Iridium Spark Plugs 4 Pack 96329 for 2013-2019 Chevy GMC Cadillac 2.5L

#6 · 2.0L Acadia Set

6. ENA Iridium Platinum 2.0L

• Core Material: Iridium

Best for: Newer 2.0L Acadia service.

Why it ranks #6: This four-plug set is listed for 2.0L L4 Acadia models from 2020–2023 and also names several related GM applications.

The ENA four-pack specifically lists GMC Acadia 2.0L L4 coverage from 2020 through 2023, separating it from the 2.5L and 3.6L applications elsewhere in this roundup. Its iridium-platinum description and broad compatible-model list help identify the intended engine family and plug type.

The stated Acadia fitment is limited to 2020–2023 L4 2.0L models, which gives owners a defined engine and year range to compare with their vehicle. Four plugs are supplied, and the title identifies an iridium-platinum plug, providing material information for a replacement decision. The same listing also names Chevrolet Blazer, Cadillac models and Buick Envision applications, but those additional vehicles do not broaden the Acadia engine specification beyond the stated 2.0L four-cylinder.

Skip it if you have a 2.5L Acadia; A-NAFTULY's four-pack B0F7RJCKXK lists 2017–2020 GMC 2.5L fitment.

This ENA set suits owners of a listed 2020–2023 GMC Acadia 2.0L L4 needing four replacement plugs. It is not the listed application for 2.5L or 3.6L Acadia engines.

Listed on Amazon as: ENA Set of 4 Iridium Platinum Spark Plug Compatible with Buick Cadillac Chevrolet GMC Envision CT4 CT5 CT6 XT4 XT5 XT6 Blazer Acadia l4 2.0L 2019 2020 2021 2022 2023 For 41-103IP 94524 ILNFR7A7G

#7

7. NGK Iridium IX LTR6IX-11

• Core Material: Copper
• Top Material Type: Metal
• Thread Size: 14 millimeters

Best for: Denali 3.6L six-pack.

Why it ranks #7: The six-pack lists 3.6L V6 GMC Acadia Denali fitment for 2011–2014 and describes a fine-wire iridium center electrode.

NGK's fine-wire iridium center electrode is specified for a consistently stable spark, and this six-pack is listed for GMC Acadia Denali 3.6L models from 2011 through 2014. That combination gives owners of the named V6 application a vehicle-targeted quantity with a stated electrode durability feature.

The six-plug pack fits the quantity implied by the listed V6 application, avoiding a partial set for routine replacement. NGK identifies the fine-wire iridium center electrode as a source of high durability and a consistently stable spark, while the description notes iridium's high melting point for high-performance engines. The listing names Acadia Denali 2011–2014 with a 3.6L/222 engine and specifies a 14mm thread. Its stated model-year coverage is narrower than some other Acadia sets.

Skip it if you have a 2007–2010 or 2015–2016 3.6L Acadia; Sixity Auto's NGK Iridium IX B0836NWQ2D lists those years.

This NGK pack fits buyers servicing a listed 2011–2014 Acadia Denali 3.6L and seeking six fine-wire iridium plugs. Its stated vehicle coverage does not extend to other Acadia years or trims.

Listed on Amazon as: NGK Iridium IX Spark Plug LTR6IX-11 (6 Pack) for GMC ACADIA DENALI 2011-2014 3.6L/222

#8

8. NGK Iridium LTR6IX-11

• Core Material: Iridium
• Top Material Type: Iridium
• Thread Size: 14mm

Best for: NGK six-plug general set.

Why it ranks #8: This six-pack specifies NGK model LTR6IX-11 and a 14 mm thread, but the listing does not name an Acadia year or engine.

NGK Iridium LTR6IX-11 plugs arrive as a six-piece pack, providing a defined quantity for buyers seeking this particular plug model. The listing identifies an iridium core and top material plus a 14mm thread, but does not provide a specific GMC Acadia engine-year application.

The six-plug package may suit buyers whose required service quantity is six, while the LTR6IX-11 model number helps identify the NGK plug being considered. Iridium is specified for both core and top material, and the 14mm thread offers one installation dimension for comparison with the engine requirement. The product details list car and truck compatibility in general terms, without naming an Acadia engine or model-year range, so application matching remains a key limitation.

Skip it if you need a stated 2007–2016 3.6L Acadia set; Sixity Auto's NGK Laser Iridium B01N14IN1U lists that application.

This NGK six-pack is suited to buyers who already need the LTR6IX-11 model and a 14mm thread plug. The supplied details do not confirm Acadia fitment, so the engine application must be established separately.

Listed on Amazon as: NGK # 6509 Iridium Spark Plug LTR6IX-11 – 6 PCSNEW

#9

9. ACDelco 41-109 Iridium

• Core Material: Iridium
• Top Material Type: Iridium
• Thread Size: M14x1.25

Best for: Cold-start electrode features.

Why it ranks #9: The listing specifies an iridium GM Original Equipment plug and a 7-year, unlimited-mile parts warranty, but gives no Acadia-specific fitment.

A fine-wire iridium electrode that helps burn away carbon deposits is the clearest differentiator of ACDelco's 41-109 plug. The listed design also supports reliable cold starting and quick acceleration, while the suppressor seal addresses radio-frequency interference and combustion leakage concerns in compatible applications.

The fine-wire iridium electrode is described as helping clear carbon deposits as they form, which supports ongoing electrode cleanliness. ACDelco also connects the small electrode design with reliable cold starts and quick acceleration. Its one-piece suppressor seal is specified to block radio frequencies that may affect vehicle electronics, meter spark energy for electrode life and help prevent combustion leakage. The listing provides an M14x1.25 thread, but does not identify a specific Acadia engine application.

Skip it if you need a specified 3.6L Acadia set; Sixity Auto's NGK Laser Iridium B01N14IN1U lists six plugs for 2007–2016 models.

This individual ACDelco plug suits buyers prioritizing fine-wire iridium, carbon-deposit control and suppressor-seal features. The listing does not establish Acadia fitment, so it is not a vehicle-specific choice without a matching application reference.

Listed on Amazon as: ACDelco GM Original Equipment 41-109 (12681660) Iridium Spark Plug

#10

10. ACDelco 41-128 Iridium

• Core Material: Iridium
• Top Material Type: Iridium
• Thread Size: RM

Best for: ACDelco electrode-control features.

Why it ranks #10: This is an iridium GM Original Equipment plug, but its supplied details give no Acadia year, engine, or specific fitment.

ACDelco's fine-wire iridium electrode is described as helping burn away carbon deposits as they form, giving this 41-128 plug a specific maintenance-related feature. Its suppressor seal also meters spark energy and helps block radio frequencies, details relevant to buyers evaluating ignition components.

The iridium fine-wire electrode is linked in the listing to carbon-deposit removal, while the small electrode design is associated with reliable cold starting and quick acceleration. A one-piece suppressor seal adds a separate function: it helps block radio frequencies that can affect vehicle electronics and helps prevent combustion leakage. ACDelco identifies this as GM Original Equipment, but the supplied product details do not name an Acadia engine fitment, so vehicle application remains an important boundary.

Skip it if you want a specified 2.5L Acadia plug set; Sixity Auto's NGK Iridium IX B0D1S69TKH lists 2017–2020 2.5L L4 fitment.

This ACDelco plug is for buyers focused on its listed electrode and suppressor-seal features. Since the supplied details do not establish an Acadia fitment, select it only when its application is verified for your engine.

Listed on Amazon as: ACDelco GM Original Equipment 41-128 (12642722) Iridium Spark Plug