Warranty Information
H.POWERTRAIN commitment to quality ensures that every one of our products is strong and dependable.
The heart of every H.P engine, the long block, is machined using state-of-the-art equipment and assembled using precise and repeatable methods.
Top end components including the fuel system, turbocharger and EGR system are fully remanufactured and tested.
H.P follows documented lean manufacturing processes and principles to guarantee every step in the process is value added and creates overall quality in the product being built.
All Drop-In engines are dyno tested on electronically controlled dynamometers to check performance and field readiness.
Finally, all H.P products are backed with warranties specifically designed to give customers peace of mind today and in the future.
Engines must be registered within 30 days of shipment from H.P to activate warranty coverage.
Warranty Policy Guidelines:
All repairs or sublets must be PRE-APPROVED by H.P warranty department. Any work done without approval will not be considered for payment. Labor and repair times will be paid based on industry standards.
H.P will not cover any excluded items outline in the limited policy & procedures. Some of those items include (but are not limited to): Towing, shop supplies, sales tax, consumables (oil, filters, etc.), mileage, downtime, mark-up, or rental.
Incomplete forms will not be processed. Engine must have been registered at time of sale, H.P will not start a claim until complete registration information has been received from the original installer or vehicle owner.
Call us for additional warranty or technical assistance @ 888-655-4615
NOTE: The owner may be responsible for some cost(s) associated with the warranty repair process.
Warranty Documents:
Diesel Engine Warranty Support
After-Sale Warranty & Support
What you should expect from any engine provider
An engine purchase isn’t just about the upfront price—it’s also about how well you’re protected after installation. A strong warranty and support program reduces your risk, protects your investment, and keeps your vehicle or equipment working as expected.
Use the following information to evaluate any vendor’s warranty and support program and to understand the actions that protect (or jeopardize) your coverage.
Warranty basics you should expect from any provider.
When you review warranty information from any engine vendor, look for clear, written answers to questions like:
- What is covered?
- Parts only, or parts and labor?
- Coverage for long blocks vs. complete drop-in engines.
- How long is the coverage?
- Time (e.g., 12, 24, 36 months) and/or mileage/hours (e.g., 100,000 miles, 3,000 hours).
- Where can repairs be done?
- Any reputable repair shop, or only specific facilities?
- What is not covered?
- Normal wear-and-tear items, misuse, lack of maintenance, or pre-existing vehicle issues.
- How is labor paid?
- Standard labor-rate, capped hourly rate, and any stated warranty labor rates, reimbursement and reasonable repair times.
- What is the claim process?
- Who to call, what information you need, and what approvals are required before work begins.
If these details are unclear or hard to get in writing, that’s a signal to ask more questions before you commit.
Actions that can protect—or jeopardize—your warranty
Most engine warranties require you to follow certain steps. Skipping them can delay or even void your coverage, regardless of the provider. Below are common expectations you’ll see in warranty terms.
- At delivery: inspection before signing
- Inspect the shipment before signing the delivery receipt.
- Look for visible damage to the packaging or engine.
- Take photos and note any damage on the freight carrier’s paperwork before signing.
- Why it matters:
- Freight damage is often handled differently than manufacturing defects.
- If damage isn’t documented at delivery, the freight carrier or vendor may not cover it under warranty.
- At installation: follow provider instructions
- Use the installation instructions provided by the engine manufacturer or remanufacturer.
- Follow torque specs, priming procedures, and any required flush/cleaning steps.
- Replace required components (e.g., filters, hoses, coolers) as instructed.
- Why it matters:
- Improper installation is a leading cause of failures that are not covered by warranty.
- Skipping required steps may be considered misuse or neglect.
- During operation: proper fluids and use
- Use approved fluids, filters, and parts.
- Follow the recommended oil type, coolant, and service intervals.
- Operate within normal parameters.
- Avoid overloading, severe overheating, or operating outside recommended limits.
- Why it matters:
- Using incorrect fluids or severely abusing the engine can be classified as misuse and may void coverage.
- Ongoing: maintenance and records
- Perform regular maintenance per the recommended schedule.
- Keep documentation.
- Save invoices and service records showing oil changes, filter replacements, and major repairs.
- Why it matters:
- In the event of a claim, vendors often request maintenance history.
- Good records help demonstrate that you’ve taken proper care of the engine.
Common issues that can limit or void warranty coverage
While every provider’s terms are different, many warranties limit or exclude coverage when:
- Freight damage is not documented at time of delivery.
- The engine is installed or repaired by someone who does not follow the provider’s instructions.
- Required components (e.g., oil cooler, injectors, filtration) are not replaced or serviced as specified.
- The engine is modified (emissions-deleted) or “tuned” beyond OEM specifications.
- Maintenance schedules are ignored, or there is no documentation to support proper maintenance.
- Failures are caused by other vehicle or equipment systems (cooling, fuel, electrical) that were not repaired.
The goal of these terms isn’t to deny coverage—it’s to ensure the engine is installed, used, and maintained in a way that supports long, reliable life.
What strong after-sale support looks like
Beyond the written warranty, a reputable provider should offer:
- Technical support:
- Access to knowledgeable technicians to help with installation questions and troubleshooting.
- Clear claim handling:
- A defined process for opening a claim, getting authorization, and understanding what’s covered.
- Flexible repair options:
- The ability to work with any local, reputable repair facility to minimize downtime, rather than limiting you to OEM-certified dealerships only.
- Parts support and documentation:
- Build records or component information to quickly identify the right replacement parts if needed.
When evaluating engine options, consider both the warranty terms and the quality of support behind them. Together, they significantly reduce your risk and maximize the long-term value of your engine investment.
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