Scion engine replacement costs in 2026 generally track Toyota costs because the engines are mostly Toyota engines. The Scion-specific considerations are the platform-specific known issues (2AZ-FE head bolts, FA20 valve springs) and the sourcing dynamics for a brand that's been out of production since 2016. For Scion owners working through replacement budgets, building the cost up from its components is the right way to plan.
Here's the itemized 2026 breakdown.
The Headline Range
A complete Scion engine replacement in 2026 typically lands between $5,000 and $11,500 total cost. The range reflects variation between four-cylinder Toyota-derived applications and the FA20 boxer engine in the FR-S.
The Engine
The largest line item.
A remanufactured long block is the most common path. Costs by family: 2AZ-FE $3,500–$5,500 (with addressed head bolts), 1AZ-FE $3,000–$4,500, 2ZR-FE $3,000–$4,500, 1NR-FE $2,800–$4,000, FA20 $5,500–$8,500.
A low-mileage used engine from documented donor vehicles runs roughly half of reman cost. Warranty picture is meaningfully different — typical coverage is 30–90 days against catastrophic failure only.
A JDM imported engine for certain Scion applications. Available for some platforms.
Installation Labor
Toyota-specialist independent shops charge $1,700–$2,500 for typical Scion engine swaps. FA20 / FR-S swaps run higher at $2,500–$3,500 due to the boxer engine architecture and access considerations.
Dealership labor (where Scion-trained dealers still exist, which is limited as Scion stopped production in 2016) runs 30–60% higher.
Supporting Parts
Motor mounts: $100–$300. Water pump and thermostat: $150–$400. Timing components if not included: $200–$500. Belts and hoses: $100–$300. Spark plugs and ignition: $100–$300. Fluids: $80–$200.
Total supporting parts add $700–$1,800 to most Scion engine swaps.
The Hidden Costs
Freight: $200–$450 LTL. Core charge: $300–$800. Emissions paperwork in CARB states: $200–$700. Diagnostic time: $100–$200.
Platform-Specific Total Cost Ranges
tC with 2AZ-FE: $5,500–$8,000 total. Engine $3,500–$5,500, labor $1,700–$2,300, supporting parts $900–$1,400.
xB second-gen with 2AZ-FE: $5,500–$8,000 total. Same as tC.
xB first-gen / xA with 1AZ-FE: $5,000–$7,500 total. Engine $3,000–$4,500, labor $1,700–$2,200, supporting parts $800–$1,200.
xD with 2ZR-FE: $5,000–$7,500 total. Similar to xA/first-gen xB.
iQ with 1NR-FE: $4,800–$7,000 total. Engine $2,800–$4,000, labor $1,700–$2,200, supporting parts $800–$1,200.
FR-S with FA20: $8,500–$11,500 total. Engine $5,500–$8,500, labor $2,500–$3,500, supporting parts $1,200–$1,800.
Where to Save and Where Not To
Safe places to save: Toyota-specialist independent shop. Reman instead of new. Returning the old core.
Unsafe places to save: skipping 2AZ-FE head bolt verification on reman engines. Sourcing FA20 from generalists without boxer-engine experience. Using non-Toyota-spec oil.
The clean way to budget a Scion engine replacement is to add the engine, labor, supporting parts, and hidden costs separately. Sourcing from our Scion engine collection keeps the engine line item predictable.
