BDFHYK 8PCS Iridium Spark Plugs 41-114 for Chevy Silverado Tahoe Cadillac Escalade 5.3L 6.2L V8

$30.99

Product Detail

Type Spark Plug
SKU BD-05-07811-8-SP
OE Number 41-114, 12622441, ILTR5E11

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Iridium Spark Plugs for Cadillac, Chevrolet & GMC

BDFHYK Iridium Spark Plugs are OE-style replacement spark plugs for selected Cadillac, Chevrolet, and GMC vehicles. Built with a fine iridium center electrode, copper core, and high-strength ceramic insulator, these plugs help deliver iridium spark ignition, stable combustion, smoother acceleration, and reliable daily driving.

Vehicle Fitment

Before ordering, please confirm your vehicle's year, make, model, engine size, and OE number. Please check OE numbers: 41-114, 12622441, ILTR5E11. This spark plug fits selected Cadillac Escalade and Escalade ESV models, Chevrolet Camaro, Corvette, Silverado 1500, Suburban, Tahoe models, and GMC Sierra 1500, Yukon, and Yukon XL models.

Helps Restore Ignition Performance

Worn spark plugs can cause weak ignition, engine misfires, rough idle, hard starts, hesitation, poor acceleration, reduced fuel economy, and check engine light issues. If you are searching for a coil pack for spark plugs because your engine has misfire symptoms, start by checking both the spark plugs and related ignition coils. A worn plug can increase voltage demand and place extra stress on the coil.

High-Quality Iridium Spark Plug Design

The fine iridium electrode helps concentrate spark energy for faster iridium spark ignition and more complete combustion. The copper core supports heat dissipation, while the ceramic insulator provides thermal resistance and insulation strength for daily driving and high-temperature engine conditions.

Recommended Ignition System Check

For best results, inspect the full ignition system during replacement. Some drivers use the term coil pack for spark plugs when looking for the ignition components connected to the plugs. If your vehicle also needs coils, pairing new plugs with an ignition coil and spark plug kit can help refresh the ignition path more completely. BDFHYK also offers ignition coil and spark plug kit options for drivers who want matched components in one repair package.

Need Help Choosing the Right Ignition Coil?

Before replacing an ignition coil, it is helpful to confirm the symptoms, fault codes, and related ignition parts. A weak or failing ignition coil may cause engine misfires, rough idle, poor acceleration, hard starting, reduced fuel economy, or a check engine light.

If you are not sure whether the coil is the problem, start with our bad ignition coil symptoms guide. If your scan tool shows ignition coil circuit codes, review our explanation of P0351, P0352, P0353, and P0354 codes before ordering replacement parts.

For buyers comparing repair options, our ignition coil replacement cost guide explains common cost factors, labor differences, and when replacing one coil or multiple coils may make sense. You can also read our ignition coil vs spark plug vs coil pack guide to understand how each part works in the ignition system.

If your spark plugs are worn, misfire-related repairs may require more than one part. See our guide on whether to replace ignition coils and spark plugs together. For Ford truck owners, the Ford F-150 ignition coil replacement guide provides vehicle-specific replacement notes.

Still not sure which ignition coil fits your vehicle? Contact our customer service team at service@bdfhyk.com. Please include your vehicle year, make, model, engine size, and any OE or part number you want to match.

Technical Specifications

Brand	BDFHYK
Product Type	Iridium Spark Plug
Product Configuration	OE-style replacement iridium spark plugs
Fitment	Cadillac Escalade 2015-2020; Cadillac Escalade ESV 2015-2020; Chevrolet Camaro 2016-2020; Chevrolet Corvette 2014-2019; Chevrolet Silverado 1500 2014-2020; Chevrolet Suburban 2015-2020; Chevrolet Tahoe 2015-2020; GMC Sierra 1500 2014-2020; GMC Yukon 2015-2020; GMC Yukon XL 2015-2020
Vehicle Make	Cadillac; Chevrolet; GMC
Vehicle Model	Escalade; Escalade ESV; Camaro; Corvette; Silverado 1500; Suburban; Tahoe; Sierra 1500; Yukon; Yukon XL
OE / Interchange Number	41-114; 12622441; ILTR5E11
Electrode Material	Fine iridium center electrode
Core Material	Copper core for heat dissipation
Insulator Material	High-strength ceramic insulator
Performance Focus	Iridium spark ignition; stable combustion; smoother acceleration; reliable daily driving
Main Buyer Concern	Cadillac, Chevrolet, and GMC owners confirming year, make, model, engine size, OE number 41-114 / 12622441 / ILTR5E11, and spark plug compatibility before ordering
Common Symptoms to Inspect	Engine misfire; rough idle; hard start; hesitation; poor acceleration; reduced fuel economy; check engine light; misfire codes such as P0300, P0301, P0302, P0303, or P0304
Related Ignition Parts to Inspect	Ignition coil; coil pack; coil boot; spark plug connector; ignition coil and spark plug kit if coils also need replacement
Replacement Type	OE-style aftermarket replacement
Critical Note	This is an OE-style aftermarket replacement spark plug, not a Genuine OEM or Official OEM part. Confirm OE number, vehicle fitment, and engine application before purchase.

Iridium Spark Ignition FAQs

Q: How do I know if these spark plugs fit my vehicle?

A: Please confirm your vehicle's year, make, model, engine size, and OE number before ordering. These spark plugs are designed for selected Cadillac, Chevrolet, and GMC models. Please check OE numbers 41-114, 12622441, and ILTR5E11, then compare them with your original spark plug or owner's manual.

Q: What vehicles are these spark plugs compatible with?

A: They fit selected Cadillac Escalade and Escalade ESV models, Chevrolet Camaro, Corvette, Silverado 1500, Suburban, Tahoe models, and GMC Sierra 1500, Yukon, and Yukon XL models. Always check the detailed fitment information before purchase.

Q: What are the symptoms of bad spark plugs?

A: Common symptoms include engine misfires, rough idle, hard starting, hesitation, poor acceleration, reduced fuel economy, engine shaking, and check engine light issues. Misfire codes such as P0300, P0301, P0302, P0303, or P0304 may also appear.

Q: Can worn spark plugs cause a check engine light?

A: Yes. Worn or fouled spark plugs can cause incomplete combustion and trigger misfire-related check engine light codes. However, misfires can also be caused by ignition coils, fuel delivery, air intake, or engine mechanical issues, so the full ignition system should be inspected.

Q: What is the benefit of iridium spark plugs?

A: Iridium spark plugs use a fine center electrode that helps concentrate spark energy for faster iridium spark ignition, stable combustion, better wear resistance, and longer service life compared with standard spark plug materials.

Q: How often should spark plugs be replaced?

A: Replacement intervals depend on your vehicle and spark plug type. Many vehicles need spark plugs replaced between 30,000 and 100,000 miles. Always follow your owner's manual and replace them earlier if you notice misfires, rough idle, hard starts, or poor fuel economy.

Q: Do I need to gap these spark plugs before installation?

A: Many iridium spark plugs are pre-gapped, but you should always confirm the required gap specification for your vehicle. Be careful when checking or adjusting iridium plugs, because the fine electrode tip can be damaged if handled roughly.

Q: Should I replace ignition coils when replacing spark plugs?

A: Not always, but it is a good idea to inspect the ignition coils, coil boots, and related connectors during spark plug replacement. Worn spark plugs can increase the workload on the ignition coil. If the coils are aging or misfire symptoms remain, an ignition coil and spark plug kit may be a better repair option.

Q: Is a coil pack for spark plugs the same as a spark plug?

A: No. A spark plug creates the spark inside the cylinder, while an ignition coil or coil pack supplies the high voltage needed to fire the plug. Some customers search for a coil pack for spark plugs when they are actually looking for ignition components connected to the spark plugs.

Q: What happens if I keep driving with worn spark plugs?

A: Driving with worn spark plugs can lead to continued misfires, poor acceleration, higher fuel consumption, rough idle, hard starts, and extra stress on ignition coils. Severe misfires may also affect the catalytic converter over time, so replacement should not be delayed when symptoms appear.

Returns & Refunds

We accept returns within 30 days of delivery for eligible items. If the product is unused and in original condition, you may request a return according to our refund policy. Full policy details: View Refund Policy . We recommend contacting our support team before initiating a return to ensure the fastest resolution.

Customer Support

If you purchased the wrong part, received an incompatible item, or need installation assistance, please contact us directly.

Email: service@bdfhyk.com

Business Hours:

Mon–Fri 9:00–18:00 (GMT+8)

Mon–Fri 19:00–04:00 (UTC−6 / CST)

Manufacturing Standards

Direct Factory Supply, Cost Saving
Integrated R&D, production, and warehousing. Eliminate middleman markups: same quality at lower prices, superior quality at same prices.

Precision Inspection, Commitment to Excellence
Rigorous inspection process, international certification standards. Each product includes individual inspection.