The EJ25 is Subaru's 2.5L flat-four — the engine under nearly every Legacy, Outback, Forester and Impreza of its era, in both naturally aspirated and turbocharged form. JDM Alliance imports EJ25-family engines directly from Japan and stocks them at our Dallas warehouse for local pickup or crated freight nationwide.
See current EJ25 inventory in stock →
The naturally aspirated EJ253 covers the Legacy, Outback, Forester and Impreza 2.5i models of the 2000s, while the turbocharged EJ255 serves the 2006+ WRX, Forester XT and Legacy GT (the STI's EJ257 is a close cousin). Subaru sold many JDM models with the EJ20 instead, so genuine low-mile EJ25 stock moves quickly — tell us your exact year, model and turbo status and we'll match the correct variant, since head castings, intake layout and sensors changed across the family. Our engines typically run 45,000–70,000 miles, documented from the auction sheet.
Each engine is sold as a long-block assembly: block, heads, valvetrain, oil pan and timing components, with the turbo included on EJ255 units where pictured. You transfer or source separately: intake manifold, exhaust, wiring harness, ECU, sensors and accessories plus mounting hardware. The engine in the photos is the actual unit you receive, and we confirm the serial with you before it ships.
Every EJ25 is compression-tested, its auction grade is documented, and it is photographed as the actual unit. Naturally aspirated replacement EJ25 engines carry our 90-day start-up warranty; turbocharged EJ255 performance units carry a 30-day warranty plus a 30-day return window. Both start the day the engine arrives.
EJ25 pricing varies with mileage, variant and container timing — check the current listings below for live pricing, with free local pickup in Dallas and flat-zone crated freight to the lower 48. If nothing is in stock today, call (972) 494-4900 or text (469) 570-4113 and we'll reserve one off the next arrival.
The EJ25's reputation for head-gasket weep is real on the naturally aspirated engines, and the smart money reseals the engine while it's on the stand: multi-layer steel head gaskets, resurfaced heads if needed, plus valve cover, oil pan, rear main and cam seals, a fresh timing belt kit and water pump. It's a fraction of the labor cost of doing it in the car later. Fill with fresh oil and coolant, burp the cooling system properly (flat-fours trap air), have a certified mechanic handle the install — it's also a warranty condition — and change the oil again after the first 500 miles.
Yes — matched to the correct variant, the long block bolts to your USDM manual or automatic transmission and runs on your existing ECU and harness with your US intake, exhaust and accessories.
Typically 45,000–70,000 miles. Japanese vehicle inspection costs push cars out of service early, which is why JDM engines average far lower mileage than US junkyard pulls.
90 days on naturally aspirated replacement units; 30 days plus a 30-day return window on turbocharged performance units. Coverage starts the day the engine arrives, and claims go to warranty@jdmallianceusa.com with your invoice, installer certification and compression readings.
Yes — free pickup at 10203 Corkwood Rd, Ste 107, Dallas, TX 75238, Mon–Fri 9–6, Sat 10–3. Call (972) 494-4900 or text (469) 570-4113 first to confirm the unit.
Installing 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.