Ignitions and Electrical Ignition Components

Bosch OEM

OEM Spark Plug

$228.12

SKU: 12120037244

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

It features a 14mm thread size with a 26.5mm reach and a 14mm hex size for secure installation. The center electrode is constructed from a durable Nickel-Yttrium and Copper blend, ensuring reliable spark delivery.
Show original supplier description
The Bosch OEM spark plug, model ZGR6STE2, is a direct replacement designed to restore peak engine performance and fuel economy. If your vehicle is experiencing symptoms such as misfiring, hesitation, loss of power, or a check engine light, aged spark plugs may be the cause. This spark plug features a robust construction with a Nickel-Yttrium and Copper center electrode and a 3-ground electrode design for enhanced durability and performance. Key specifications include a 14mm thread size with a 1.25mm pitch, a 26.5mm reach, and a 14mm bi-hex (12-point) size. The pre-gap size is set at 0.7mm, and it utilizes a gasket seat type. The recommended torque specification is 23 ± 3 Nm (approximately 17 ft-lb). These spark plugs are made in Germany and are manufactured to stringent standards, often found within Genuine BMW packaging. They are designed as a direct replacement for various BMW models, including the 1 Series M, 135i, 335i, 335i xDrive, 335is, and Z4 models, among others. It is recommended to replace spark plugs at the manufacturer's suggested service intervals, typically around 45,000 miles for these specific BMW engines.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBosch OEM
Part Number12120037244
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy