OKMO D Type Engine Shipping Delay Update – Upgraded Metal Piston Rings for Enhanced Durability

Dear Valued EngineDIY Community Members,

We are writing to formally notify you of a temporary shipping delay for the highly anticipated Lister D Type Engine. Rest assured, this delay is not a setback—it is a deliberate quality upgrade designed to deliver a superior, long-lasting product that exceeds your performance expectations.

Critical Quality Upgrade: Metal Piston Rings for Enhanced Durability

During the final comprehensive performance testing phase, our engineering team conducted rigorous assessments of every component to validate the engine’s reliability and longevity. After extensive evaluation, we made the strategic decision to retrofit metal piston rings as a core upgrade to the Lister D Type Engine.

This critical modification delivers tangible benefits for every enthusiast: drastically improved wear resistance, consistent operational stability, and extended service life for your engine. While this enhancement elevates the overall build quality to industry-leading standards, it requires additional production adjustments and precision manufacturing time to execute flawlessly.

🎁 Pre-Order Compensation (Limited to Pre-Order Customers Only)

As a token of our appreciation for your patience, all pre-order customers will receive the following complimentary gifts:

Water bucket
Fuel funnel
Fuel dropper (plastic bottle)

These items will be shipped together with your order.

⚠️ Please note: Orders placed after the first batch will not include these gifts.

📦 Shipping Schedule:

We are currently working around the clock to complete production. A small batch is expected to be finished this month, and all orders are scheduled to ship by no later than mid-April.

We understand that delays can be disappointing. However, we are confident that this decision is the right one — ensuring that you receive a product that meets our highest standards of quality and performance.

🔧 Production Update: On a positive note, the engine frames are now nearly complete!

Thank you for your continued support and understanding. We truly appreciate your patience.

If you have any questions, please don’t hesitate to reach out.(service@enginediy.com)

EngineDIY Team