RDX iridium spark plug set
Shop Acura RDX spark plug sets with OEM heat range equivalents.
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Check Price and Fitment⚡Spark Plug Type
Acura RDX Spark Plug Type
Find the correct spark plug type, gap size, and replacement interval for your Acura RDX. Covers all model years with torque specs.
Last updated: 2026-05-07 • Reading time: 8 min • By AllOEMManuals Editorial Team
Quick Answer
The Acura RDX typically uses iridium or platinum spark plugs. Newer models (2010+) use long-life iridium plugs rated for 60,000-100,000 miles. Check below for your specific year.
| Generation | Years | Top spec |
|---|---|---|
| 2019-2024 | 2019-2024 | Iridium (long-life) |
| 2013-2018 | 2013-2018 | Iridium (long-life) |
| 2007-2012 | 2007-2012 | Platinum or Iridium |
Factory Manual ConfirmationSpark Plug Type
Know the exact spark plug type job for your Acura RDX
The Acura RDX typically uses iridium or platinum spark plugs. Newer models (2010+) use long-life iridium plugs rated for 60,000-100,000 miles. Check below for your specific year.
Spark plug type and gap depend on the exact engine. Confirm the engine code before buying plugs or setting the gap. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.
Exact Vehicle Check
Use the archive navigator when you need the exact engine, trim, or production-branch manual instead of a broad year-range summary. That keeps the buying list and repair steps aligned with the real vehicle.
2013-2018
Representative 2013 manual branch for 2013-2018
Ignition System
RDX 3.5L Eng VIN 3
Ignition System — 2013 Acura RDX 3.5L Eng VIN 3 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Acura >> 2013 >> RDX 3.5L Eng VIN 3 >> Repair and Diag...
Open factory section →Ignition System
RDX 3.5L Eng VIN 4
Ignition System — 2013 Acura RDX 3.5L Eng VIN 4 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Acura >> 2013 >> RDX 3.5L Eng VIN 4 >> Repair and Diag...
Open factory section →2007-2012
Representative 2007 manual branch for 2007-2012
Replace The Spark Plugs, Don't Clean Them! (B10070C)
Replace The Spark Plugs, Don t Clean Them! (B10070C) — 2007 Acura RDX Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Acura >> 2007 >> RDX >> Repair a...
Open factory section →Front and Rear Door Striker Adjustment
CSX Base, K20A3
Front and Rear Door Striker Adjustment — 2007 Acura CSX Base, K20A3 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Acura >> 2007 >> CSX Base, K20A3 >...
Open factory section →2019-2024
2019-2024Spark Plug TypeIridium (long-life)
Plug Gap0.039" - 0.043" (1.0 - 1.1mm)
Replacement Interval60,000 - 100,000 miles
Torque Spec15 - 22 ft-lbs (check manual)
Quantity4 (inline-4) or 6 (V6)
Notes
- →Iridium plugs last longer but cost more — do NOT re-gap iridium plugs
- →Use a torque wrench — over-tightened plugs can strip aluminum heads
- →Apply a thin coat of anti-seize to threads (unless plug is pre-coated)
- →Use a spark plug socket with rubber insert to avoid cracking the ceramic insulator
2013-2018
2013-2018Spark Plug TypeIridium (long-life)
Plug Gap0.039" - 0.043" (1.0 - 1.1mm)
Replacement Interval60,000 - 100,000 miles
Torque Spec15 - 22 ft-lbs (check manual)
Quantity4 (inline-4) or 6 (V6)
Notes
- →Iridium plugs last longer but cost more — do NOT re-gap iridium plugs
- →Use a torque wrench — over-tightened plugs can strip aluminum heads
- →Apply a thin coat of anti-seize to threads (unless plug is pre-coated)
- →Use a spark plug socket with rubber insert to avoid cracking the ceramic insulator
2007-2012
2007-2012Spark Plug TypePlatinum or Iridium
Plug Gap0.039" - 0.044" (1.0 - 1.1mm)
Replacement Interval30,000 - 60,000 miles
Torque Spec13 - 20 ft-lbs
Quantity4 (inline-4) or 6 (V6)
Notes
- →Iridium plugs last longer but cost more — do NOT re-gap iridium plugs
- →Use a torque wrench — over-tightened plugs can strip aluminum heads
- →Apply a thin coat of anti-seize to threads (unless plug is pre-coated)
- →Use a spark plug socket with rubber insert to avoid cracking the ceramic insulator
Ready to BuyFitment-first picks for Acura RDX
Buy the Exact Parts and Tools for This Job
These links are built from the same specs shown on this page so users can move from lookup to purchase faster. Confirm exact engine and trim if your vehicle has multiple variants, then build the full cart before you step away from the computer.
Affiliate disclosure: We may earn a commission at no extra cost to you. The goal is to get you to the right parts in one pass.
Spec Snapshot
- Spark Plug Type
- Iridium (long-life)
- Plug Gap
- 0.039" - 0.043" (1.0 - 1.1mm)
- Replacement Interval
- 60,000 - 100,000 miles
Spark plug socket set
Magnetic or rubber-insert sockets for safe plug installation.
Prevents cracked insulators and dropped plugs in deep wells.
Check Price and Fitment3/8-inch torque wrench
Torque to spec and avoid stripping aluminum threads.
Plug thread damage is expensive and fully avoidable.
Check Price and FitmentGap gauge and anti-seize kit
Helpful for checking plug gap and protecting service threads.
Small install tools prevent big ignition problems later.
Check Price and FitmentDielectric grease and coil boots
Protect connectors and coil boots during plug service.
Moisture protection helps prevent repeat misfires and corrosion.
Check Price and FitmentBefore you buy, sanity-check the repair quote and the cart
If your shop quote looks high, run it through Quote Shield to catch overpricing before checkout. Then use the parts links above to lock in the one-trip plan.
One-Trip Shopping List
Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.
⚡Shop →
Iridium Spark Plugs
Long-lasting performance plugs for modern engines.
🔌Shop →
Spark Plug Socket
Magnetic or rubber-insert socket to prevent damage.
📏Shop →
Gap Gauge
Ensure your plugs are set to the exact factory spec.
🔧Shop →
Torque Wrench
Crucial for tightening plugs without stripping threads.
🧴Shop →
Anti-Seize Lubricant
Prevents plugs from welding to the cylinder head.
🧪Shop →
Dielectric Grease
Protects ignition boots and connectors from moisture.
🧰View All →
Project Essentials
Basic tool sets, gloves, and cleaning supplies for your Acura RDX so the job is ready when the parts arrive.
Frequently Asked Questions
- What spark plugs does a Acura RDX use?
- The Acura RDX spark plug type varies by year and engine. Newer models (2010+) typically use iridium plugs for longer service life. Older models may use platinum or copper. Check the specs below for your exact year.
- How often should I change spark plugs on a Acura RDX?
- Modern Acura RDX models with iridium plugs can go 60,000-100,000 miles between changes. Older models with copper plugs need replacement every 30,000 miles. Replace sooner if you notice misfires, rough idle, or poor fuel economy.
- What is the spark plug gap for a Acura RDX?
- Most Acura RDX models use a spark plug gap between 0.039" and 0.044" (1.0-1.1mm). Pre-gapped plugs from the OEM are recommended. Do not re-gap iridium-tip plugs as it can damage the electrode.
- Can I upgrade to iridium spark plugs in my Acura RDX?
- Yes, upgrading from copper or platinum to iridium is generally safe and beneficial. Iridium plugs offer better ignitability, longer life, and improved fuel economy. Just match the correct heat range and gap for your engine.
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Author & Review
Written by AllOEMManuals Editorial Team. Reviewed by ASE-certified technicians and updated with factory-reference checks for fitment-sensitive steps.
This guide was drafted with AI assistance and reviewed for accuracy by a human editor.
Last updated: 2026-05-07