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Welcome to Promar Engines

Your Trusted Partner for Engine Remanufacturing

Promar Precision Engines, based in Paterson, New Jersey, has over 45 years of experience as engine rebuilders and is committed to the highest quality products and services offered in the industry.

Promar Precision Engines is a professional engine remanufacturing company serving customers worldwide with a complete line of rebuilt engines / remanufactured engines, cylinder heads, crankshafts, engine restoration services and engine components for Automobile & Light Truck, Classic Automobile, Diesel (Light Duty), High Performance and Marine (Boats)

Promar stands apart by offering unparalleled expertise in remanufacturing. Our team combines cutting edge technology with meticulous craftsmanship to ensure every engine meets or exceeds original performance standards. Whether you're restoring a classic car or need reliable marine engine repair, we’re here to deliver results you can trust.

At Promar we take pride in serving a diverse range of clients, from enthusiasts preserving vintage vehicles to professionals seeking performance upgrades. Our attention to detail and commitment to excellence have earned us a loyal customer base across multiple industries.

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BBB Accredited & Flexible Payment Options

Shop Securely with PayPal For Peace Of Mind

Promar Engines is proud to be BBB Accredited with an A+ rating, reflecting our commitment to trust and integrity. We offer flexible payment options including PayPal, allowing you to buy now and pay later with confidence. Your satisfaction and convenience are our top priorities!

PayPal Accepted

Shop securely with PayPal and enjoy safe, convenient transactions every time.

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BBB Accredited

We meet the highest standards for trust ensuring peace of mind for every customer.

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Buy Now Pay Later

Enjoy flexible financing options with payment plans that will fit your budget.

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REMANUFACTURING PROCESS

Enabling Engine Excellence Through Precision

Our remanufacturing process ensures that each component meets the highest standards. From thorough inspections and precision machining to rigorous testing, we restore engine blocks, cylinder heads, and crankshafts to like new condition for dependable performance

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Engine Blocks

Our remanufacturing process for engine blocks includes detailed inspections, precision machining, and rigorous testing. Each block is restored to like-new condition, meeting or exceeding OEM standards for reliability.

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Cylinder Heads

Our remanufacturing of cylinder heads includes comprehensive cleaning, crack detection, and machining. We install plugs, check spring pressure, and add seals, ensuring each head performs reliably and efficiently.

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Crankshafts

Our crankshaft remanufacturing process includes detailed inspections, grinding, and polishing to restore the crankshafts to precise specifications. This ensures a smooth and efficient engine operation with maximum durability.

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CUSTOMER SERVICE QUICK REFERENCE

Customer Service Information

For your convenience, here's a quick reference to important customer service details. Learn more about our payment options, sales tax policies, business hours, and other essential information to help guide your experience with Promar Engines.


PAYMENT

We accept Business Checks, Certified Bank Checks, Cash, Money Orders, Paypal, Zelle, Apple Pay, Google Pay, Venmo, Wire Transfers and All Major Credit Cards. All funds must be in United States currency (US Dollars).


SHIPPING & DELIVERY

Please use the form below to calculate shipping cost for your area.

Delivery of the engine by truck equipped with a lift gate is $75 each way and residential delivery is an additional $100 each way. Those services are free for New Jersey customers.

Shipping options are also available for customers outside of the United States. Please email sales@promarengine.com for more details.

SHIPPING COST

Select your destination to get shipping cost.


STATE SALES TAX

All orders shipped within New Jersey will have 6.625% New Jersey state sales tax added.

All orders shipped within New York, Pennsylvania, Florida, North Carolina, South Carolina or Illinois will have your current county sales tax added. We do not we collect sales tax in the other states.


BUSINESS HOURS

Our normal business hours are Monday-Friday 8am-5pm EST. We can be reached by phone @ 1-800-422-6022 or by email info@promarengine.com


CORE POLICY

All engines, cylinder heads, and crankshafts are sold on an exchange basis. While there is no core deposit required, all cores must be returned. By purchasing our product you agree to have the appropriate, rebuildable core ready for pickup or paid for in full within 30 days. After 30 days your warranty will be voided and you will be charged market value for your core. Please call for immediate pickup.

For more information please feel free to call toll free Monday-Friday 8am-5pm EST@ 1-800-422-6022 or email us info@promarengine.com

LATEST GOOGLE REVIEWS

What Our Customers Say

Discover the difference with Promar Engines. We take pride in delivering top notch services to our customers. Don't just take our word for it hear what they have to say about their experiences with us! Our commitment to quality and customer satisfaction speaks through their success stories.

LATEST NEWS

Company Updates & Announcements

Get the inside scoop on the latest developments at Promar Engines. From groundbreaking innovations to important announcements, we keep you updated on everything happening within our company and the engine remanufacturing industry.


EXCITING NEWS: WE NOW ACCEPT ZELLE FOR PHONE AND ONLINE PAYMENTS!

Posted on March 17, 2025 by promarengine

We’re always looking for ways to make shopping with us easier and more convenient. That’s why we’re thrilled to announce that we now accept Zelle as a payment method—both for purchases made over the phone and through our online shopping cart! Continue reading


NOW OFFERING GM 4.3L ECOTEC3 LV3 ENGINES WITH AFM DELETED

Posted on February 26, 2025 by promarengine

If you’re in the market for a GM 4.3L EcoTec3 V6 engine and want to avoid the common problems associated with Active Fuel Management (AFM), we’ve got great news! We are now offering GM 4.3L EcoTec3 LV3 engines with AFM deleted, giving you a more reliable and Continue reading


INTRODUCING PROMAR ENGINES 6.4 ENGINE FOR RAM TRUCKS: A GAME CHANGER WITHOUT MDS

Posted on August 13, 2024 by promarengine

For Ram truck enthusiasts and owners, the search for a powerful, reliable engine upgrade just got easier. Promar Engines has recently expanded its lineup to include a 6.4-liter engine specifically designed for Ram trucks from 2014 to 2020. But what makes this engine truly stand out? It’s a non-MDS (Multi-Displacement System) engine that doesn’t require any reprogramming of the trucks computer. Continue reading


INTRODUCING NON-AFM GM 5.3 L83 AND 6.2 L86 ENGINES

Posted on May 21, 2024 by promarengine

We’re excited to announce that we now offer non-AFM (Active Fuel Management) versions of the highly acclaimed GM 5.3 L83 and GM 6.2 L86 engines. This upgrade comes in response to the preferences of Continue reading


CELEBRATING 30 YEARS OF EXCELLENCE: PROMAR ENGINES JOURNEY OF INNOVATION AND RELIABILITY

Posted on October 02, 2023 by promarengine

For three decades, Promar Engines has been a name synonymous with quality, innovation, and reliability in the automotive industry. As we celebrate our 30th anniversary, we take a moment Continue reading

MEMBERSHIPS

Our Industry Affiliations

Promar Engines is proud to be a member of esteemed organizations that set the standards for quality and excellence in the industry. Our memberships reflect our commitment to staying at the forefront of engine remanufacturing and adhering to the highest professional standards.