Spark Plug Set - BMW M42
Shipping & Returns
Shipping & Returns
How is shipping calculated?
Shipping cost is based on weight and size. Just add products to your cart and use the shipping estimate tool before checkout to see an accurate shipping cost to your address!
What is your return policy?
We do accept returns. Please email us at info@broxtuning.ca to submit your request. Items sent to us without submitting a request will not be accepted.
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return. Customer service is at the top of our values here at Brox Tuning and we try our best to make the return process painless for our customers. If you need more info please click here for our detailed return policy.
When will my order ship?
Once an order is placed, if the item is in stock we will have it shipped out within 1 business day. Out of stock items usually ship within 1-2 weeks. Please email us if you have any questions regarding inventory at sales@broxtuning.ca.
Do you ship worldwide?
We only ship to Canada & USA.
Price Match
Price Match
If you're shopping for parts and want to make sure you get the best price before you order, give Brox Tuning the opportunity to earn your business. Call us at (416) 798-BROX or email us at sales@broxtuning.ca with the required info below:
- Link to competitor's site:
Local Pick Up
Local Pick Up
If you are local to our physical location you have the ability to choose the "local pick up" option at checkout! This means you can come and get your items once they are available for pick up avoiding shipping costs. In stock items are usually ready within 1-3 hours. Out of stock items will need 1-2 weeks. Get in touch with us if you have questions about stock levels at sales@broxtuning.ca or call us at (416) 798-BROX
Ask about inventory:
Description
Description
Set of 4 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
BMW
12-12-9-063-428 / 12 12 9 063 428 / 12129063428
Denso Part #
4702 / IK20TT
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.