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Contents vary unit to unit — the photos and description on this page show what this listing type ships with. Anything missing you need, ask before you order.
Units are strapped to a pallet and crated. Have a forklift or a way to unload at the receiving end, or choose liftgate service. Questions on a quote before checkout? Text (469) 570-4113 with your zip.
Parts most people replace while the engine is out — brand new, in original manufacturer packaging. Want fitment confirmed against your build first? Call or text (469) 570-4113
JDM 2003–2008 Mazda RX-8 13B Renesis 4-Port Rotary Engine & Automatic Transmission — Approx. 60,000 Miles
Genuine Japanese-domestic-market 13B MSP Renesis 4-port rotary, imported directly from Japan by JDM Alliance and supplied with its automatic RWD transmission. Serial 13B-467979. The 4-port is the automatic-car Renesis — a different specification from the 6-port manual engine.
Engine specs
Compatible vehicles
What's included
Anything else visible in the photos is included unless noted otherwise.
What you'll receive
We stock multiple examples of most engines, and the unit photographed is one of them. If this particular engine has sold we'll match you to another in the same condition and mileage range. Before anything ships we send you photographs and the serial number of the actual engine you're getting — you approve it first.
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
The 4-port Renesis produces less power than the 6-port and was paired to the automatic — make sure you're buying the one your car calls for. Confirm your application 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.
JDM Alliance — Dallas, TX
Ships from our Dallas warehouse at 10203 Corkwood Rd, Ste 107, Dallas, TX 75238 — local pickup available. 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.
Complete Engines
shift linkage
Sway Bar
transmissionInstalling with us? Text your year, make, model & engine code to (469) 570-4113 — fastest response during business hours.
Need a shipping quote? See our Shipping page.
Mon–Fri 9am–6pm · Sat 10am–3pm CT · After hours? Text anyway — we reply first thing.