Spark Plugs:
* OEM (Original Equipment Manufacturer): GM's recommended spark plugs are a great starting point. They're designed specifically for your engine and offer reliable performance. Check your owner's manual for the exact part number. Using the correct heat range is crucial.
* ACDelco: ACDelco is GM's parts division, so their plugs are a safe and often cost-effective alternative to OEM. Look for their 41-931 or equivalent depending on your engine (4.8L, 5.3L, or 6.0L).
* NGK: NGK is a highly respected brand known for quality and performance. They offer various plugs with different heat ranges, so you'll need to find the appropriate one for your Tahoe's engine. Consult an NGK cross-reference chart or a parts store professional to find the match.
* Champion: Another reputable brand, Champion also offers spark plugs suitable for the 2002 Tahoe. Similar to NGK, consult a cross-reference chart for the correct heat range.
Spark Plug Wires:
* ACDelco: Again, ACDelco offers a reliable option for spark plug wires. They typically provide good performance and durability.
* MSD: MSD is a popular choice for performance enthusiasts, offering wires that can improve spark delivery and potentially increase performance. However, they are generally more expensive.
* Taylor Wires: Another performance-oriented brand, Taylor wires are known for their high-quality construction and resistance to interference.
Factors to Consider:
* Engine Size: Your 2002 Tahoe could have a 4.8L, 5.3L, or 6.0L V8 engine. The correct spark plugs and wires are specific to the engine size.
* Driving Style: If you frequently tow heavy loads or drive aggressively, you might consider performance spark plugs and wires. For everyday driving, OEM or ACDelco are usually sufficient.
* Budget: OEM and ACDelco are generally the most affordable options. Performance brands like MSD and Taylor will cost more.
* Heat Range: Choosing the wrong heat range can lead to misfires, engine damage, or reduced performance. Consult your owner's manual or a parts store professional to determine the correct heat range for your engine.
Recommendation:
For most drivers, starting with ACDelco spark plugs and wires is a wise choice. They offer a balance of quality, reliability, and affordability. If you're looking for a slight performance boost or have specific needs, research NGK spark plugs and consider MSD or Taylor wires after confirming the correct heat range and application for your Tahoe's engine. Always consult your owner's manual or a qualified mechanic if you're unsure.
