E3 Spark Plugs

E3 Spark Plug E3.34

Sale price€8.90 Regular price€9.90
Save €1.00

Tax included. Shipping calculated at checkout

IN STOCK ! Shipped within 48 to 72 hours

Contact Us

Need help with an order, product compatibility, availability, or shipping information?
Our team is here to help.

Holy Death Motorcycle Co. is based in France and ships motorcycle parts and accessories across Europe and worldwide.

Customer Support

For any question, please contact us by email or through our live chat.

Email: info@holydeath.com
Live chat: available directly on our website

We usually reply as quickly as possible during business days.

Before Contacting Us

To help us answer faster, please include as much information as possible:

  • Your order number, if your request is about an existing order
  • Your motorcycle model, year and version
  • The product name or SKU
  • Any photos if the request is about fitment, damage or compatibility

Orders & Shipping

If your order contains a product marked as USA stock, backorder, or pre-order, the shipping time may be longer due to import delays.

Orders are shipped from France.
European customers do not have customs fees on orders shipped from our warehouse.

Returns & Exchanges

Not fully satisfied with your purchase?
You can return eligible items within 30 days after delivery, provided they are unused, uninstalled and returned in their original packaging.

For any return request, please contact us before sending the item back.

Return Address

HDTH - Holy Death Motorcycle Co.
2 Rue Sébastienne Guyot
91460 Marcoussis
France

Email: info@holydeath.com

Contact Form

Please use the form below and our team will get back to you as soon as possible.

The E3 unique ground electrode incorporates the combined benefits of several known performance plug types as well as new science based upon years of spark plug research. The three main performance components that determine how the E3 DiamondFIRE configuration works are:

● Open Ground Electrode Design
This mimics surface gap spark plugs like the type used in rotary engines which directs the flame kernel to the piston more directly than traditional J-wire designs. This design reduces the travel time from the spark zone to the chamber containing the compressed gases. The opened section at the top of the electrode avoids the creation of the doughnut shaped flame kernel known from standard plugs. Given the short amount of time available to get combustion started, the faster you can direct the flame to the area above the piston, the better the burn.

● Forward Projection into Spark Zone
With retracted plug designs, the generated spark lies against the top of the combustion chamber surface. The E3 ground electrode is designed to project farther forward into the combustion chamber. This brings the spark zone closer to areas of probable good air-fuel mixture. The outward projection also creates beneficial "micro-aerodynamics" within the spark zone. Since the initial combustion wave leaves the spark area at supersonic speeds, the elevated edge of the E3 electrode provides somewhat of a chimney effect as the next air-fuel mixture enters the spark zone.

● Edge-to-Edge Spark Discharge
The strongest part of the E3 electrode design is the forced Edge-to-Edge spark discharge, which was proven to be the best way to direct a spark as it leaves the electrode's surface. Since the spark itself occurs only when an avalanche of electrons migrates from the two electrodes (cathode to anode), sharp edges are better at initiating migrations, and accelerated electrons collide inside the spark zone.

FAQ
Shipping

It depends on where you are located and what you ordered. Here are the estimated delays :

  • France orders will arrive within 3 to 7 business days
  • Europe and international orders will arrive within 7 to 10 business days.

Some products are in stock others are not, we have different level of stock :

  • In stock : Shipped within 24h / 48h.
  • European stock : Shipped within 48h / 72h.
  • USA stock : Shipped within 3 to 5 weeks.
  • Pre-order with ETA : Shipping according to the estimated date.
  • On order with specific delay : Shipping based on availability.

France Orders :

  • France Standard : 0.00€ to 148.99€ = 7.90€
  • France Standard - Free : 149€ and up = FREE

Europe Orders :

  • Europe Standard : 0.00€ to 148.99€ = 19.90€
  • Europe Standard - Free : 149€ and up = FREE

International Orders :

  • International Standard : 0.00€ and up = 64.90€

Sometimes we are quick, sometimes we are not but we have never missed an order. Please be patient, you will receive an email with the tracking information.

If you still want to complain about your order not getting here quick enough and want to send 25 emails about why its not here yet, please email us at info@holydeath.com.

Some items may ship from different warehouses, which can lead to separate deliveries. Don’t worry—your remaining items are still on the way, and you’ll receive a tracking update as soon as they ship.

Return

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn (no "new" smells) or unused, with tags, and in its original packaging. Parts once mounted cannot be returned. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at info@holydeath.com.

The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days.

Please remember it can take some time for your bank or credit card company to process and post the refund too.

If more than 15 business days have passed since we’ve approved your return, please contact us at info@holydeath.com.

Customs Duties & Taxes

No. All orders ship from within the EU, so you will never pay customs duties or additional charges. The price you see at checkout is the final price—no surprises.

Free shipping over 149€

Free shipping kicks in automatically on all orders over €149, so you save without even thinking about it.

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