AC Delco 41-101 Iridium Spark Plug - Cross Reference NGK ITR4A15

The AC Delco 41-101 is an iridium spark plug built for outstanding strength and high temperature resistance. Iridium construction allows for a smaller, more efficient electrode design compared to conventional plugs, which supports improved cold starting and quicker acceleration while maintaining smooth engine performance. The electrode material has a high melting point and is laser-welded for a durable, reliable bond that holds up under repeated heat cycling.

This plug is designed as a direct replacement for engines specifying the AC Delco 41-101, and it cross-references to the NGK ITR4A15, Volvo 21467472, and Donovan 203052 part numbers, making it straightforward to identify the correct plug even if your engine documentation lists one of those alternate numbers. It ships ready to install with no additional preparation required.

Specifications

• Brand: AC Delco
• Manufacturer Part Number: 41-101
• Electrode Material: Iridium
• Weight: 0.1 pounds
• UPC: 808709616283

Fitment

Fits engines specifying the AC Delco 41-101 spark plug or its listed cross-reference numbers.

Replaces (OEM)

• NGK ITR4A15
• Volvo 21467472
• Donovan 203052

Frequently Asked Questions

What is the AC Delco 41-101 spark plug made of? The AC Delco 41-101 uses an iridium electrode, which provides outstanding strength and high temperature resistance compared to standard electrode materials.

Does the 41-101 cross-reference to an NGK part number? Yes, the AC Delco 41-101 is interchangeable with the NGK ITR4A15 spark plug.

Is the AC Delco 41-101 the same as the Volvo 21467472 spark plug? Volvo 21467472 is listed as a cross-reference number for the AC Delco 41-101, so the two part numbers refer to an equivalent spark plug.

What does the Donovan 203052 number mean for this spark plug? Donovan 203052 is another cross-reference number for the AC Delco 41-101, useful if your engine paperwork lists that number instead.

How much does the AC Delco 41-101 spark plug weigh? This spark plug weighs 0.1 pounds.

Why choose an iridium spark plug over a standard one? Iridium construction allows for a smaller, more efficient electrode design, which the AC Delco 41-101 uses to support improved cold starting and quicker acceleration with smooth engine performance.

Is the AC Delco 41-101 laser-welded? Yes, the electrode on the AC Delco 41-101 is laser-welded for a reliable, durable connection.

What UPC does the AC Delco 41-101 spark plug use? The AC Delco 41-101 spark plug carries UPC 808709616283.

Will the AC Delco 41-101 help with cold starts? Yes, the iridium construction of the 41-101 is designed for reliable cold starting.

Is this a genuine AC Delco spark plug? Yes, the 41-101 is a genuine AC Delco iridium spark plug, not a generic aftermarket substitute.