Mazda Rotary Genuine & Performance Parts
Genuine, JDM, OEM, and high-performance Mazda spare parts — shipped fast, priced right, and backed by expertise.
We specialize exclusively in Mazda rotary parts and rotary engine components for every RX model ever produced. From early classics like the RX-2, RX-3, RX-4, RX-5 Cosmo, and REPU, to performance legends such as the RX-7 SA/FB, FC3S, FD3S,RX8 and modern RX-8 Renesis, we supply precision-fit parts built to factory and performance specifications. Our inventory also supports all rotary engine variants, including 10A, 12A, 13B, 13B-RE, 13B-REW, 20B triple-rotor, and 26B quad-rotor engines. Whether you’re restoring a vintage rotary icon, rebuilding an engine, or upgrading for performance, we provide the parts you need with worldwide availability.
Rotary Models
Featured products
MAZDA Rotary RX series include
- Mazda RX-2 parts
- RX-2 rotary engine parts
- RX-2 12A parts
- RX-2 restoration parts
RX-3
- Mazda RX-3 parts
- RX-3 rotary parts
- RX-3 10A / 12A parts
- RX-3 performance parts
RX-4
- Mazda RX-4 parts
- RX-4 rotary engine parts
- RX-4 13B parts
RX-5 / Cosmo (HB)
- Mazda RX-5 parts
- Cosmo rotary parts
- RX-5 13B engine parts
REPU (Rotary Pickup)
- Mazda REPU parts
- Rotary pickup engine parts
- REPU 13B parts
SA22C/FB (1st Gen RX-7)
- RX-7 SA22C parts
- RX-7 FB parts
- First-gen RX-7 12A parts
- FB RX-7 13B parts
FC3S (2nd Gen RX-7)
- RX-7 FC parts
- FC3S 13B turbo parts
- RX-7 FC performance parts
- FC3S rotary components
FD3S (3rd Gen RX-7)
- RX-7 FD parts
- FD3S 13B-REW parts
- FD RX-7 turbo parts
- FD3S performance upgrades
RX-8 (Renesis)
- RX-8 parts
- RX-8 Renesis engine parts
- RX-8 ignition coils
- RX-8 rebuild kits
JC Cosmo (20B)
- Mazda Cosmo JC parts
- 20B triple-rotor parts
- Cosmo 20B engine components
Rotary Engine Models
10A
- 10A rebuild kits
- 10A apex seals
12A
- 12A apex seals
- 12A rotor housings
- 12A rebuild kits
13B
- 13B-RE / 13B-REW parts
- 13B rebuild kits
- 13B apex seals
- 13B rotor housings
- 13B eccentric shaft
20B (Triple Rotor)
- Mazda 20B parts
- 20B rotary engine components
- 20B apex seals
- 20B rebuild kits
26B (Quad Rotor)
- 4-rotor engine parts
- 26B race engine components
Why philsrotary
Philsrotary was built around one clear mission: to support and preserve the legacy of Mazda rotary engines. Rotary powerplants are admired for their lightweight design, high-revving performance, and unmistakable engineering—and they deserve specialists who truly understand them.
We focus exclusively on rotary engines and rotary-powered vehicles, allowing us to offer carefully selected parts, trusted components, and knowledgeable support you won’t find at general auto parts stores. From classic RX models to modern rotary platforms, our goal is to be a reliable global source for quality rotary engine parts and expert guidance.
What customers are saying
Real feedback from rotary enthusiasts who trust us for quality parts, expert support, and reliable service worldwide
“I’ve owned rotary cars for over 15 years, and this is one of the few websites that truly understands rotary engines. The parts were exactly as described, well packaged, and arrived faster than expected. It’s clear this company lives and breathes rotaries. I’ll definitely be ordering again.”
Daniel K
Montana, USA
“Finding correct parts for an FD RX-7 isn’t easy, but Just Rotaries made it simple. The apex seals and gaskets fit perfectly, and the quality was excellent. Customer support answered my questions quickly and knew exactly what I needed.”
Anthony M
Chicago, IL
“My RX-8 was down and I needed parts urgently. The shipping was fast, tracking was clear, and the parts arrived in perfect condition. It’s refreshing to deal with a company that actually communicates and knows rotaries.”
Steven P
Cleveland, OH
WHAT WE OFFER
Fast & Secure Shipping
We ship rotary parts globally with secure packaging and reliable logistics, ensuring your components arrive safely and on time—no matter where you are.
Trusted by Rotary Owners Worldwide
Thousands of satisfied customers trust us for quality parts, transparent service, and consistent results. Our reputation is built on reliability, expertise, and customer satisfaction.
Genuine & Performance-Proven Parts
All our parts are carefully sourced, tested, and selected for durability, performance, and reliability.
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Rotary Engine Coverage
- Supports 10A, 12A, 13B, 13B-REW, 20B, and 26B engines
- Apex seals, side seals, corner seals
- Rotor housings, eccentric shafts, rotors
- Complete rotary rebuild kits
Model-Specific Parts
- RX-7 SA22C / FB / FC3S / FD3S components
- RX-8 Renesis ignition and engine parts
- Mazda Cosmo JC (20B) specialist components
- Classic rotary restoration parts
Expert Rotary Support
Pre-purchase compatibility guidance
Performance & Upgrade Parts
High-quality performance components designed to increase power, reliability, and efficiency for all Mazda rotary engines.
- Turbo kits and turbo components
- Intake manifolds and exhaust systems
- Cooling upgrades and oiling solutions
- Porting and tuning support parts
Frequently Asked Questions (FAQs)
Belolw are answers to some common customers questions.
Which Mazda RX models do you support?
We carry parts for RX-2, RX-3, RX-4, RX-5 (Cosmo), REPU, RX-7 SA/FB, FC3S, FD3S, RX-8 Renesis, and Mazda Cosmo JC (20B).
Which Mazda RX models do you support?
We carry parts for RX-2, RX-3, RX-4, RX-5 (Cosmo), REPU, RX-7 SA/FB, FC3S, FD3S, RX-8 Renesis, and Mazda Cosmo JC (20B)
Are your rotary parts OEM or aftermarket?
We offer a mix of genuine OEM, OEM-equivalent, and high-performance aftermarket parts, all carefully selected for quality, durability, and precise fitment.
Do you sell complete rotary engine rebuild kits?
Yes. We stock complete rotary rebuild kits, including apex seals, side seals, corner seals, bearings, gaskets, and springs for most rotary engines.
Can you help me choose the correct part for my engine?
Absolutely. If you’re unsure which part fits your RX model or rotary engine, our support team can help you confirm engine type, year, and application before purchase.