Search  for anything...

BOSCH ZR6SII3320 OE Fine Wire Double Iridium Spark Plug - Advanced Original Equipment Technology with 4X Life - Pack of 10

Based on 72 reviews
Condition: New
Checking for the best price...
$78.39

Buy Now, Pay Later


As low as $13.07 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Nov 5
Order within 14 hours and 4 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

At a glance

Condition
New
Model
ZR6SII3320
Core Material
Iridium
Thread Size
RM
Top Material Type
Nickel
Vehicle Service Type
Car, SUV, Truck
Item Type Name
Spark Plugs
In the box
Spark Plugs

Features 2

  • 360-degree laser welded ultra-fine wire iridium firing pin provides better ignitability - reducing voltage requirements up to 24% - and enhanced durability
  • Meets or exceeds manufacturer design requirements for OE fit, form, and function for modern gasoline engines - including Gasoline Direct Injection (GDI) engines

Description

Bosch OE Fine Wire Double Iridium Spark Plugs are engineered to deliver both high performance and long life, representing advanced original equipment (OE) spark plug technology. The ultra-fine wire design and laser welded tapered ground electrode deliver optimum performance, while the iridium center electrode and iridium ground electrode inlay help it to go the distance. OE- matched spark position ensures compatibility with Gasoline Direct Injection (GDI) technology used in modern gas engines. Bosch OE Fine Wire Double Iridium spark plugs are pre-gapped at the factory and ready to install right out of the box - gap adjustment prior to installation not required. The Nickel-plated rolled threads provide maximum resistance to corrosion - ensuring the spark plug removes easily from the cylinder head without galling - and do not require anti-seize during installation - saving time. Bosch Double Iridium Spark Plugs meet or exceed manufacturer design requirements for OE fit, form, and function for modern gasoline engines. Unlock the performance in your engine with Bosch Double Iridium Spark Plugs.

Specs 17

Brand Bosch
Core Material Iridium
Thread Size RM
Top Material Type Nickel
Vehicle Service Type Car, SUV, Truck
Brand Name Bosch
Manufacturer Part Number ZR6SII3320
Global Trade Identification Number 43

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Perfect Bosch Aftermarket
Size: Pack of 10
They are exactly what I needed and now my car is running like a polished machine. The quality of the plugs are top notch. I have great throttle response and smooth acceleration at low rpms. The price is was more affordable the any part store. I would recommend these plugs to anyone.
Reviewed in the United States on August 21, 2025 by Daniel D. Boyd

I love these plugs! I saved money too
Size: Pack of 10
Great Plugs at a cheap price! at 1st I was suspicious because they didnt have a hologram, I checked them out and put them inside my car and so far so good! These are great! The same plugs at the dealership were $60 and these were $8 each
Reviewed in the United States on June 23, 2025 by K Miller

Product as stated
Size: Pack of 10
Heat price for 10. Does what is stated
Reviewed in the United States on April 24, 2025 by JpO

Plugs worked well
Size: Pack of 10
The box was damaged, but the plugs appear to work well
Reviewed in the United States on November 3, 2025 by Robert l.

Great OEM plugs for 2013 Mercedes C300
Size: Pack of 10
Worked great and pre gapped.
Reviewed in the United States on January 7, 2025 by Erin Edgemon

Good for the money
Size: Pack of 10
No complaints as of yet.
Reviewed in the United States on January 20, 2025 by Aliyu

Order shorted
Size: Pack of 10
Ordered pack of ten. Received three.
Reviewed in the United States on April 8, 2025 by John M

Same as factory
Size: Pack of 10
OE replacement
Reviewed in the United States on February 17, 2025 by Amazon Customer
Checking for best price...