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425+HP 6BT Engine Package

425+HP 6BT Engine Package

Regular price $17,999.00 AUD
Regular price Sale price $17,999.00 AUD
Sale Sold out

High-Performance Cummins Engine – Rated for 425+ HP

Built with premium components, this engine is designed for durability and peak performance, delivering over 425 HP with proven reliability. Whether on the road or off, it's the ultimate powerhouse for your build.

🔹 Power You Can Trust – Precision-built for maximum efficiency and longevity.
🔹 Ready to Perform – Delivers 425+ HP right out of the box.
🔹 Backed by a 6-Month Warranty – Built to last with confidence.

Includes:
✔️ New Genuine Cummins Long Block
✔️ Maxed & Balanced Weifu P7100 (with 191 delivery valves, upgraded Bosch DV springs & keepers, 4K gov springs, AFC mods)
✔️ DAF Truck Exhaust Manifold
✔️ Smeding Turbo (Billet CNC Compressor Wheel, 59mm Inducer, 80mm Exducer, 0.84 A/R)
✔️ Turbo Drain & Oil Line
✔️ 5x12 or 5x14 Injectors (based on your use case)
✔️ 230,000 PSI Head Studs & Machined Rocker Pedestals
✔️ 60lb Valve Springs Upgrade
✔️ Water Pump, Oil Filter, & Engine Oil

Unleash the power—get yours today!

Coming soon: Engine Dyno Tuning packages coming Easter, plus EPC Leak-Free Upgrade Kits to enhance both performance and appearance

SHOWN with EPC Rocker Cover and Exhaust Manifold as add on options. 

Warranty

Engines Only 90 day warranty

Engines Only is committed to providing our customers with high-quality used Cummins engines and excellent customer service. We strive to resolve any issues promptly and efficiently. All of our engines undergo a rigorous inspection process, including compression testing and a running test, prior to sale.

This warranty covers used Cummins engines purchased from Engines Only and applies for a period of ninety (90) days from the date of purchase.

Warranty Coverage:

This warranty covers defects in materials and workmanship in the engine block, crankshaft, cylinder heads, and connecting rods. It does not cover any consequential damages, labor costs for removal or installation, or any other components not explicitly mentioned.

Warranty Limitations:

  • This warranty is void if the engine is subjected to abuse, neglect, accident, or improper installation or maintenance.
  • This warranty does not cover normal wear and tear, or damage caused by contaminants such as water, dirt, or foreign objects.
  • The warranty does not cover change of mind.
  • This warranty is void if the cylinder head is removed without the prior written consent of Engines Only.
  • This warranty is void if oversized injectors, governor springs, or aftermarket turbos are installed on the engine.
  • The customer is responsible for all shipping costs associated with returning the engine for warranty repair or replacement.

Warranty Claims:

To make a warranty claim, the customer must provide proof of purchase and return the engine to Engines Only for inspection at the customer's expense. If the engine is found to be defective within the warranty period, Engines Only will repair or replace the engine at its discretion.

Returns

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 or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at engines4use@gmail.com. Please note that returns will need to be sent to the following address: 

Warehouse 3 
393 South Gippsland Highway
Dandenong South, Victoria, Australia 3175


If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at engines4use@gmail.com.


Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.


Exceptions / non-returnable items
Certain types of items cannot be returned, custom products (such as special orders or personalized items). Please get in touch if you have questions or concerns about your specific item. 

Unfortunately, we cannot accept returns on sale items or gift cards.


Exchanges
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.

Restocking:

We charge a 20% restocking fee on all returned items. 

Refunds
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 engines4use@gmail.com.

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