Used JDM Mazda RX-8 13B 4-Port Non-Turbo Engine  | 2004–2008 Rotary Setup for Sale – J-Spec Auto Sports

Looking for a clean replacement or affordable rotary swap? This used JDM 13B-MSP 1.3L Renesis 4-port non-turbo engine is pulled from a 2004–2008 Mazda RX-8 and is now available at J-Spec Auto Sports. This engine setup is ideal for Mazda enthusiasts who want to restore their RX-8 to OEM performance or complete a cost-effective rotary project.

Engine & Drivetrain Specs:

• 13B-MSP 4-Port Renesis Rotary Engine (Non-Turbo)

• Factory-rated at approx. 192 HP

• Came from a  5-speed setup

• Compatible with 2004–2008 Mazda RX-8 chassis

• Low mileage JDM import: approx. 40,000–60,000 miles

• Includes necessary accessories such as coil packs, intake manifold, and sensors (as available)

• Engine and transmission are compression tested for reliability

This 13B Renesis engine features a cleaner, more efficient rotary design compared to its predecessors, with an updated port layout and side-exhaust configuration. The 4-port version offers excellent drivability and fuel economy for those who want a reliable daily driver with rotary character. This is a direct-fit setup for any 2004–2008 RX-8 and can also be used in custom rotary builds.

All JDM engines and transmissions from J-Spec Auto Sports are carefully inspected, cleaned, and verified before shipping. We import only the best-condition rotary engines from Japan so you can trust the performance and quality.

Keywords: Used JDM Mazda RX-8 Engine and Transmission, 13B Non-Turbo Rotary Engine, RX8 5-Speed Manual Transmission, 13B-MSP 4-Port Engine for Sale, JDM Mazda Rotary Engine, RX-8 Engine Swap, RX8 Engine Replacement J-Spec Auto