SKU: 91230664985

Spark Plug Set - BMW N52

Sale price$81.99 Regular price$91.10
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Description

Spark Plug Set - BMW N52Set of 6 Spark Plugs The Iridium TT Twin Tip Technology delivers far less obstruction to the spark allowing an omni directional explosion. This minimizes the quenching effect and results in a more effective, more complete combustion. Better combustion means more power and better fuel economy, as fuel is burned more efficiently with each piston firing. The large center and ground electrodes seen on a Standard Plug increases quenching of the explosion,

Set of 6 Spark Plugs


The Iridium TT Twin-Tip Technology delivers far less obstruction to the spark allowing an omni-directional explosion.

This minimizes the quenching effect and results in a more effective, more complete combustion. Better combustion means more power and better fuel economy, as fuel is burned more efficiently with each piston firing.

The large center and ground electrodes seen on a Standard Plug increases “quenching” of the explosion, meaning the spark explosion is restricted by the electrodes above and below the gap, allowing it to spread to either side, but not grow with full range.

For complete combustion, the Iridium TT’s two tips allow the spark plug to create the largest spark concentration and explosion, which translates into more power and superior fuel economy than any other plug.

With this unique design, there are literally two “tips”: a 0.4-millimeter Iridium center electrode, and a 0.7-millimeter Platinum ground electrode. DENSO’s patented Twin-Tip technology was first used on original equipment spark plugs for luxury and performance cars. Now, that technology is available to everyone.

The Iridium TT’s revolutionary 0.4 millimeter center electrode means significantly improved combustion and fewer misfires – optimizing power output like never before.

Invented by DENSO, the Iridium TT Twin-Tip Technology enables larger spark concentration and explosion, delivering more complete combustion, which translates to more superior fuel economy.

The unparalleled Iridium TT spark plug is tested to last well beyond 100,000 miles, with minimal loss to performance, contributing to more overall lifetime savings than any plugs available today.

Features and Benefits:

  • Titanium-enhanced alloy ground electrode
  • 1.1mm platinum center electrode
  • Minimum-quench electrode design
  • Improved fuel economy
  • Faster starts



OE Part #'s


12-12-2-158-253 / 12 12 2 158 253 / 12122158253

12-12-0-032-137 / 12 12 0 032 137 / 12120032137

12-12-0-032-138 / 12 12 0 032 138 / 12120032138

12-12-0-035-915 / 12 12 0 035 915 / 12120035915


Denso Part #   4704

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Exchange/Return Notes
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SKU: 91230664985

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4.4 ★★★★★
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Sabrina Luna
Port Orchard, US
★★★★★ 5
Necessary for travel
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Purple
This is really cute and looks classy. Quality is very nice. The only thing is the hooks for the necklaces didn’t keep them on, but everything else about this is a must for traveling and not losing or tangling up your jewelry.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
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Alyssa McBride
Houston, US
★★★★★ 5
LOVE IT!
Size: Large (8.2"W*4.2"D*2.4"H), Color: Beige
I love it. It’s very pretty and simple, in a good way. I plan to use it for all my jewelry and not just for travel. I like that it has a lot of hooks for necklaces and plenty of space for earring and rings. The fabric inside and out seem to be good quality. It’s well made and zips easily. The structure is sturdy as well. The color (white) is just as depicted. I think I got the larger size but it doesn’t feel bulky at all. I like that it comes with an extra pouch for bulkier items. It’s one of the best jewelry boxes I’ve had!
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Reviewed in the United States on May 30, 2026
A
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Amazon Customer
Bozeman, US
★★★★★ 4
Nice little travel solution for jewelry
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Pink
Cute travel box for my jewelry. The necklace hangers aren’t all that snug, causing my necklaces to fall and tangle some. But otherwise, works as expected.
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Reviewed in the United States on March 19, 2026
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Brenda
Draper, US
★★★★★ 5
would buy again
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Beige
Love this jewelry case. perfect size for travel and at a good price
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Reviewed in the United States on May 21, 2026
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Michelle Lough
Alexandria, US
★★★★★ 5
It’s just as described. I love it. Very pretty and lots of space.
Size: Medium (6.8"W*4.4"D*2.2"H), Color: Beige
The quality of it was great. It’s very pretty and easy to travel with. Love the removable eaaring holder. Gives enough room for everything
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Reviewed in the United States on April 27, 2026

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