When rebuilding a rotary engine, few components are as critical as the rotor housings. These genuine Mazda 12A Turbo Rotor Housings – Brand New offer enthusiasts, builders, and restorers the opportunity to start with fresh OEM-quality components designed specifically for the legendary Mazda 12A turbo rotary platform.
Whether you’re performing a complete engine rebuild, restoring a classic RX-7, or assembling a high-performance rotary engine, brand-new rotor housings provide the foundation needed for optimal compression, sealing, reliability, and long-term durability.
Unlike used housings that may suffer from wear, scoring, corrosion, or heat-related damage, these unused genuine Mazda rotor housings deliver factory-level fitment and performance. They are an excellent choice for anyone who wants to eliminate uncertainty during a rotary engine build and ensure the highest possible standards of engine assembly.
For serious rotary enthusiasts, starting with new OEM rotor housings is one of the best investments you can make in the longevity and performance of your engine.
The Mazda 13B 1/2 Studded Streetport Engine – Fresh Build is a performance-focused rotary engine designed for enthusiasts seeking a strong, reliable foundation for street, track, or custom swap applications. Freshly assembled using a genuine Mazda 13B rotary platform, this build combines proven reliability upgrades with performance-enhancing modifications that improve airflow, power potential, and durability.
Featuring a professionally prepared streetport configuration and upgraded 1/2-inch stud hardware, this engine offers the ideal balance between daily drivability and serious performance capability. Whether you’re restoring a classic Mazda RX-7, upgrading an RX-8 project, or building a custom rotary-powered vehicle, this engine provides a versatile platform capable of supporting naturally aspirated or turbocharged performance goals.
For rotary enthusiasts who understand the importance of a properly built engine, the Mazda 13B 1/2 Studded Streetport Engine – Fresh Build delivers confidence, performance, and long-term reliability.
If you’re searching for the perfect balance between street drivability, responsive power delivery, and the unmistakable sound of a performance rotary engine, the Mazda 13B 6-Port Street Port / Half Bridge Rotary Engine Build delivers exactly that.
Freshly built and designed for enthusiasts who appreciate naturally aspirated rotary performance, this engine combines a carefully executed street port with a half-bridge modification to maximize airflow while preserving reliability for real-world driving. The result is an engine that pulls hard through the mid-range, continues to build power at higher RPM, and produces the aggressive rotary exhaust note that enthusiasts seek.
Whether you’re restoring an RX-7, upgrading an RX-8, or building a custom rotary-powered project, this freshly assembled 13B offers an outstanding foundation for a responsive and enjoyable driving experience.
Unlike many turbo-focused rotary builds, this all-motor configuration emphasizes throttle response, linear power delivery, and the unique characteristics that made Mazda rotary engines legendary among performance enthusiasts worldwide.
When building a serious rotary-powered project, the foundation matters. The Mazda 13B 6-Port Turbo Motor – Built for Boost is engineered for enthusiasts seeking dependable power, exceptional throttle response, and a platform capable of handling significant boost pressure. Whether you’re restoring a classic Mazda RX-7, building a custom drift car, preparing a street-and-strip machine, or planning a unique engine swap, this performance-built 13B rotary engine delivers the strength and airflow necessary to support your goals.
Featuring a dowel-pinned block and professionally streetported configuration, this engine has been prepared with performance and durability in mind. The 6-port design offers improved drivability while maintaining the high-RPM characteristics that rotary enthusiasts love. Combined with turbocharging capability, this setup provides an ideal balance between responsiveness, power potential, and reliability.
Priced at $2,500 USD / $3,500 AUD, this Mazda 13B 6-Port Turbo Motor offers a proven foundation for enthusiasts looking to unlock the true potential of a turbocharged rotary engine.
The Mazda 13B Generator Short Block – S5 T2 Components is a rare rotary engine assembly originally imported into the United States during the early 1990s for industrial stationary generator applications. Unlike conventional automotive rotary engines, this unique powerplant was designed for propane-fueled operation and long-term reliability under continuous-duty conditions.
Built using a specialized combination of genuine Mazda second-generation rotary components, this short block offers a unique opportunity for rotary enthusiasts, engine builders, restorers, and performance tuners seeking hard-to-find OEM parts. Featuring desirable S5 Turbo II end plates, S5 rotor housings, 13BT eccentric shaft, and factory one-piece apex seals, this engine provides an exceptional foundation for a custom turbocharged build or specialized rotary project.
Stored in a climate-controlled workshop environment, the engine spins freely and demonstrates strong compression, making it a highly attractive candidate for performance applications, rebuilds, or parts harvesting.
Whether you’re building a street-driven RX-7, a dedicated race car, a custom rotary swap project, or simply collecting rare Mazda rotary components, this discontinued generator engine represents a unique opportunity to secure genuine OEM hardware that is becoming increasingly difficult to source.
For rotary enthusiasts who demand maximum naturally aspirated performance and one of the most iconic sounds in motorsports, the Mazda 13B Peripheral Port Rotary Engine – Performance Build delivers a driving experience unlike anything else on the road.
This freshly built performance-oriented 13B rotary engine features a full peripheral port (PPort) configuration, a setup widely regarded as the ultimate naturally aspirated rotary modification. Designed to maximize airflow and unlock the true high-RPM potential of Mazda’s legendary twin-rotor engine, this build offers exceptional top-end power, razor-sharp throttle response, and the unmistakable race-inspired rotary exhaust note that enthusiasts worldwide recognize instantly.
Whether you’re building a dedicated track car, a weekend street machine, a competition drift vehicle, or a custom rotary-powered project, this engine provides an incredible foundation for serious performance.
Built specifically for drivers who appreciate the unique character of rotary power, the Mazda 13B Peripheral Port Rotary Engine – Performance Build combines motorsport-inspired engineering with the timeless appeal of Mazda’s legendary rotary platform.
For rotary enthusiasts seeking a powerful, professionally assembled engine ready for serious street or track performance, the Mazda 13B T2 Street Port Rotary Engine – Fresh Build delivers an outstanding combination of strength, reliability, and tuning potential.
This freshly built 13B rotary engine has been assembled in-house and features a carefully executed T2 street port configuration designed to improve airflow while maintaining excellent drivability. To further enhance durability, the engine has been dowel pinned, a proven modification that helps maintain alignment under high cylinder pressures and demanding operating conditions.
Whether you’re building a high-horsepower Mazda RX-7, upgrading an RX-8 project, or creating a custom rotary-powered vehicle, this fresh build provides an ideal foundation. Built with performance in mind and designed to support boosted applications, it offers the perfect balance between street manners and aggressive power capability.
Ready for installation and built to handle serious horsepower, this engine is an excellent choice for enthusiasts who want a professionally prepared rotary engine without the wait and uncertainty of starting from scratch.
If you’re searching for a genuine rotary engine with proven performance and excellent potential, this Mazda 13B Rotary Engine – 1994 RX-7 is an outstanding opportunity for RX-7 owners, restorers, and rotary enthusiasts alike.
Removed from a 1994 USDM Mazda RX-7 FD3S, this 13B rotary engine has demonstrated healthy compression and strong running condition. Whether you’re replacing a tired engine, planning a fresh rebuild, or building a high-performance street or track car, this engine provides a solid foundation for your next project.
The Mazda 13B remains one of the most iconic rotary engines ever produced. Known for its compact design, smooth power delivery, lightweight construction, and impressive tuning potential, it continues to be one of the most sought-after engines in the rotary community.
With good compression test results available and palletized shipping options, this engine is ready to become the centerpiece of your next build.
If you’re searching for a proven rotary platform with enhanced airflow, stronger throttle response, and excellent tuning potential, this Mazda 13B Rotary Engine – Street Ported Build is an outstanding choice.
Originally built through a school engine program and carefully freshened for its next chapter, this engine features professionally cleaned and refined street ports designed to improve airflow while maintaining excellent drivability. Whether you’re building a street-driven Mazda RX-7, upgrading an RX-8 project, or planning a custom rotary swap, this 13B offers a solid foundation for naturally aspirated or turbocharged performance.
The Mazda 13B remains one of the most respected rotary engines ever produced. Its lightweight design, smooth high-RPM operation, and unmatched character have made it a favorite among rotary enthusiasts worldwide. This street-ported version takes those legendary characteristics a step further by optimizing airflow for improved power delivery and responsiveness.
Freshened and ready for installation, this engine offers enthusiasts a dependable starting point for a wide variety of rotary-powered builds.
The Mazda 13B Street Port Engine – Dowel Pinned & Ported is an excellent choice for rotary enthusiasts seeking a proven combination of reliability, drivability, and performance. Built from a genuine Mazda 13B platform, this engine has been professionally street ported to improve airflow and power delivery while incorporating dowel pin reinforcement for added strength and long-term durability.
Whether you’re restoring a classic RX-7, upgrading an RX-8, or building a custom rotary-powered project, this engine provides a strong foundation for naturally aspirated performance or future turbocharged applications.
The 13B rotary engine has earned legendary status among performance enthusiasts for its lightweight design, smooth power delivery, and ability to rev freely. This upgraded version takes those qualities further with carefully executed modifications designed to maximize airflow while maintaining excellent street manners.
For enthusiasts looking for a dependable rotary engine that delivers the unmistakable rotary driving experience, the Mazda 13B Street Port Engine – Dowel Pinned & Ported offers an ideal balance of performance and reliability.
The Mazda 13B Street-Ported Half-Bridge Rotary Engine – Dowel Pinned Build is a professionally assembled performance rotary engine designed for enthusiasts seeking serious power potential, improved airflow, and enhanced durability. Built with a combination of street-porting, half-bridge port modifications, and a dowel-pinned block, this engine offers an excellent balance between drivability, reliability, and high-performance capability.
Whether you’re building a street-driven Mazda RX-7, a dedicated track car, or a custom rotary-powered project, this freshly built 13B rotary engine provides a strong foundation for achieving your performance goals. The combination of proven rotary modifications and professional assembly makes this engine an attractive option for enthusiasts who want more than a standard stock rebuild.
Unlike factory engines, this build has been specifically prepared to support increased airflow and stronger power delivery while maintaining the unique characteristics that make rotary engines legendary among performance enthusiasts.
Freshly built and ready for installation, this engine is prepared for its next chapter in a high-quality performance build.
The Mazda 13B Street-Ported Rotary Engine – Dowel Pinned Build is a professionally assembled performance rotary engine designed for enthusiasts who want a proven combination of power, durability, and drivability. Featuring street porting for increased airflow and a dowel-pinned block for added structural integrity, this fresh-build 13B offers an ideal foundation for serious street, track, or custom rotary projects.
Whether you’re building a high-performance Mazda RX-7, restoring a classic RX-3 or RX-4, or creating a one-of-a-kind rotary-powered vehicle, this engine delivers the legendary characteristics that have made Mazda rotary engines famous worldwide. The street-port configuration enhances breathing and horsepower while maintaining excellent drivability, making it one of the most popular upgrades among experienced rotary enthusiasts.
Built for reliability and performance, this engine is ready for installation and prepared to serve as the heart of your next rotary-powered project.
For rotary enthusiasts seeking a powerful, professionally assembled engine ready for serious street or track performance, the Mazda 13B T2 Street Port Rotary Engine – Fresh Build delivers an outstanding combination of strength, reliability, and tuning potential.
This freshly built 13B rotary engine has been assembled in-house and features a carefully executed T2 street port configuration designed to improve airflow while maintaining excellent drivability. To further enhance durability, the engine has been dowel pinned, a proven modification that helps maintain alignment under high cylinder pressures and demanding operating conditions.
Whether you’re building a high-horsepower Mazda RX-7, upgrading an RX-8 project, or creating a custom rotary-powered vehicle, this fresh build provides an ideal foundation. Built with performance in mind and designed to support boosted applications, it offers the perfect balance between street manners and aggressive power capability.
Ready for installation and built to handle serious horsepower, this engine is an excellent choice for enthusiasts who want a professionally prepared rotary engine without the wait and uncertainty of starting from scratch.
The Mazda 13B Turbo 6 Port Full Bridge Port Rotary Engine is a serious high-performance rotary setup built for enthusiasts who want raw power, responsiveness, and track-ready durability. Designed from the legendary Mazda 13B platform, this engine combines a full bridge port configuration with a 6-port turbo setup, delivering aggressive airflow and exceptional high-RPM performance.
This build is aimed at drivers who want more than a stock replacement. Whether you’re building a drift car, a street monster, or a dedicated track machine, this engine package offers a strong foundation with proven performance components already installed. With supporting fuel, ignition, and ECU upgrades included, it reduces the complexity of building a competitive rotary setup from scratch.
If you’re searching for an authentic Mazda 13B-REW rotary engine to serve as the foundation for your next build, this bare engine is an excellent opportunity. Originally found in the legendary Mazda RX-7 FD3S, the 13B-REW remains one of the most iconic rotary engines ever produced, renowned for its compact design, impressive power potential, and unmistakable rotary driving experience.
This Mazda 13B-REW Rotary Engine – Bare Engine is offered exactly as shown and is ideal for enthusiasts, builders, tuners, and restoration specialists looking for a solid platform for a rebuild, refresh, or custom performance project. Whether you’re restoring a factory RX-7, assembling a high-horsepower street machine, or planning a dedicated track build, the 13B-REW continues to be one of the most sought-after rotary engines in the performance community.
Unlike complete engine packages that include accessories and supporting components, this bare engine allows experienced builders to customize every aspect of the build according to their specific goals. From stock rebuilds to single-turbo conversions and race-prepared applications, the possibilities are nearly limitless.
If you’re searching for an authentic Mazda 13B-REW rotary engine for your RX-7 restoration, rebuild, or performance project, this genuine early-model FD RX-7 engine is an excellent foundation. Removed from a running vehicle and carefully stored indoors, this twin-turbo rotary engine offers enthusiasts, builders, and tuners the opportunity to acquire one of the most iconic powerplants ever produced by Mazda.
The 13B-REW remains one of the most respected rotary engines in the automotive world. Originally fitted to the legendary Mazda RX-7 FD3S, this engine helped establish the RX-7 as one of Japan’s most celebrated sports cars. Known for its lightweight construction, compact dimensions, smooth power delivery, and impressive tuning potential, the 13B-REW continues to be the preferred choice for rotary enthusiasts around the globe.
Whether you’re restoring a Series 6 RX-7, planning a full engine rebuild, building a street car, or creating a high-horsepower track machine, this Mazda 13B-REW twin-turbo engine provides a solid starting point for your next project.
