









JDM 2003–2008 Mazda RX-8 13B Renesis 4-Port Rotary Engine, ECU & Automatic Transmission — Approx. 45,000 Miles
Genuine Japanese-domestic-market 13B MSP Renesis 4-port rotary, imported directly from Japan by JDM Alliance and supplied with its automatic transmission and ECU.
Sourced to order: this engine comes from our rotating container inventory rather than a single fixed listing. Units are typically 45,000–60,000 miles and verified free of seizing before shipping. When you order we pull a clean in-stock unit and send you photographs and the serial number of the actual engine before it ships — real engines, never stock photos.
Engine specs
Compatible vehicles
What's included
Before you install — apex seals
Rotary apex seals dry out and harden with age. Brittle seals crack, and that shows up as poor compression. We strongly recommend replacing the apex seals before installation. Every rotary we sell is verified free of seizing before it ships.
Fitment
This is the 4-port Renesis, the automatic-car specification — 6-port cars use different components and make more power. The ECU is included. Confirm which your car uses before ordering.
Warranty
The rotary engine is sold AS-IS with no warranty — final sale. The included transmission carries our 30-day transmission warranty. Full terms at jdm-online.com/pages/warranty.
Shipping
Ships crated via freight nationwide. Free local pickup in Dallas.
JDM Alliance — Dallas, TX
Ships from our Dallas warehouse at 10203 Corkwood Rd, Ste 107, Dallas, TX 75238. Questions on fitment or freight? Call or text (469) 570-4113, or reach the shop at (972) 494-4900. Imported direct from Japan: no middlemen, real photos, real engines.
Engine
Engine
Engine
SaleComplete EnginesText your year, make, model & engine code to (469) 570-4113 — fastest response during business hours.
Mon–Fri 9am–6pm · Sat 10am–3pm CT · After hours? Text anyway — we reply first thing.