At a Glance
- Condition: OEM used, compression tested both rotor housings per Mazda rotary standard
- Availability: Multiple 13B variants in stock across different applications
- Shipping: Specialty freight handling for rotary engines to all 50 states
- Variant verified (13B-NA naturally-aspirated / 13B-T single-turbo / 13B-REW sequential twin-turbo / 13B-MSP Multi-Side Port Renesis)
- Application confirmed (RX-7 FB / FC / FD, RX-8, JDM Capella / Luce / Cosmo applications)
- Compression tested both rotor housings (each face of each rotor measured)
- Apex seal condition documented (CRITICAL primary wear point)
- Side seal condition assessed
- Eccentric shaft condition verified
- Rotor housing wear documented
- Honest disclosure of rotary engine maintenance requirements
- 15 day replacement warranty on internal defects
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Cosworth EJ257 Crate Engine for Sale | Legendary Cosworth Engineering Built
Rated 4.00 out of 5
2 reviews
In Stock
At a Glance
- Condition: Cosworth-built crate engine, freshly built specification or low-mileage used
- Availability: In stock, Cosworth EJ257 crate engine available subject to availability
- Shipping: Specialty freight handling for crate engine to all 50 states, 7 to 14 business days
- Engine verified as Cosworth-built EJ257 (legendary British motorsport engineering firm Cosworth-engineered Subaru EJ257 crate)
- Cosworth specification documented (Cosworth-developed pistons, rods, crankshaft, head work, oil system, balanced rotating assembly)
- Application confirmed (Subaru WRX STI performance builds, custom Subaru projects, race / track day applications, stage upgrade builds)
- Horsepower potential documented (Cosworth-built EJ257 typically supports 450-700 plus HP capability with proper supporting modifications)
- Internals verified (Cosworth forged pistons, Cosworth-spec H-beam connecting rods, balanced crankshaft, ARP main and head studs)
- Both cylinder heads condition documented (CNC-ported / flowed in Cosworth specification)
- Cosworth oil system verified (high-volume oil pump, baffled oil pan, oil cooler provisions)
- 15 day replacement warranty on internal defects



