Rebuilt Mazda RX3 Engine for sale

Rebuilt Mazda RX3 Engine for sale. Own a classic Mazda RX-3 and need a reliable engine replacement? Whether you’re tackling a full restoration or bringing an old-school rotary back to life, First Used Auto Parts has the perfect solution. We offer rebuilt Mazda RX-3 engines that deliver the signature rotary performance this 1970s icon is known for — all at a fraction of the cost of a new motor.

We proudly ship nationwide to California, Texas, Florida, New York, and all across the United States.

Why Choose a Rebuilt Mazda RX-3 Engine? Rebuilt Mazda RX3 Engine for sale.

The Mazda RX-3, produced from 1971 to 1978, is a prized classic for rotary fans and vintage car collectors alike. But its revolutionary Wankel rotary engine can be complex — and costly — to repair or replace. A professionally rebuilt RX-3 engine offers the ideal balance of originality, reliability, and affordability.

🔧 OEM-Quality Rebuild

Each RX-3 rotary engine is fully disassembled, cleaned, and precision-machined. Worn rotor housings, apex seals, side seals, and gaskets are replaced with OEM-spec parts or better, ensuring long-term durability and performance.

✅ Tested for Peak Rotary Performance

All engines are compression tested and bench-tested to ensure they meet or exceed factory performance standards. You get that iconic rotary sound — and the smooth, high-revving power — with peace of mind.

🛡️ Backed by Warranty

Every rebuilt RX-3 engine comes with a limited warranty, protecting your investment and giving you confidence whether you're cruising to a car show or daily driving.

Mazda RX-3 Engine Options We Offer

We supply rebuilt rotary engines for various RX-3 models and configurations:

• 1971–1973 Mazda RX-3

  • 10A rotary engine (1.0L twin-rotor)

• 1974–1978 Mazda RX-3

  • 12A rotary engine (1.1L twin-rotor)

• Compatible with coupe, sedan, and wagon models

• Manual and automatic transmission compatibility

Don’t know which engine is right for your RX-3? Send us your VIN, year, and model info — we’ll make sure you get the correct engine for your build.

How to Order Your Rebuilt Mazda RX-3 Engine

Step 1: Share Your Vehicle InfoWe’ll need your model year, VIN, and preferred engine type (10A or 12A) to confirm the best match.

Step 2: Get a Free QuoteWe’ll provide a detailed quote with pricing, shipping details, and warranty information — no strings attached.

Step 3: Fast Nationwide ShippingWe ship your rebuilt RX-3 engine directly to your door or preferred shop, from Los Angeles to Houston, Miami, Seattle, and everywhere in between.

Why Choose First Used Auto Parts?

• 🔁 Rotary Engine Specialists – Our team understands the unique design and demands of Mazda’s rotary powerplants

• 💵 Competitive Prices – More affordable than crate motors, with better reliability than a used engine

• 🚚 Nationwide Shipping – We ship to all 50 states, safely and on time

• 🛡️ Warranty Included – Every rebuilt RX-3 engine comes with a limited warranty for your peace of mind

• 👨‍🔧 Expert Support – We’ll help you pick the right engine and connect you with trusted installers if needed

Get Your Classic Mazda RX-3 Back on the Road

A rebuilt Mazda RX-3 engine from First Used Auto Parts is the key to unlocking your classic's full potential. Whether you're restoring a collector's item or reviving a weekend toy, our rotary engines bring back the thrill of high-revving Mazda performance — built right and backed by warranty.

📞 Call us today or request a free quote online to get started. Your RX-3 deserves the best — and we deliver.