JDM 2004–2008 Mazda RX-8 4-Port 13B 1.3L Engine Only – Excellent Compression – 5-Speed Manual – 30-Day Warranty

Description:
Upgrade your Mazda RX-8 with this clean, high-quality JDM 2004–2008 Mazda RX-8 13B 4-Port 1.3L rotary engine, imported directly from Japan. This engine is pulled from a 5-speed manual transmission (5MT) RX-8 and is an ideal replacement or swap for enthusiasts looking to restore or build a performance rotary-powered vehicle.

This 13B-MSP RENESIS 4-port engine is known for its smoother powerband and lighter internal components compared to the 6-port variant. It has been compression tested with excellent results in both rotor housings, ensuring you’re receiving a strong, healthy engine with plenty of life left. Whether you’re replacing a tired motor or planning a naturally aspirated build, this engine provides a reliable foundation backed by rotary-specific performance.

Key Features:

• JDM Mazda RX-8 13B 4-Port 1.3L engine (2004–2008)

• From a 5-speed manual transmission vehicle

• Excellent compression results – tested and verified

• Complete long block engine (no transmission)

• 30-day startup warranty included

• Ideal for direct replacement or rotary project builds

• Imported from Japan – thoroughly inspected for quality

Fitment:
Compatible with 2004, 2005, 2006, 2007, and 2008 Mazda RX-8 models. This engine is designed for 4-port variants and may require modifications for 6-port vehicles.

Trust J-Spec Auto Sports for authentic JDM engines that are inspected, tested, and supported by a warranty. Fast shipping available across the U.S. – contact us for availability or detailed compression test results.

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