Subaru Outback Head Gasket Repair
Complete guide with costs, step-by-step instructions, and repair options
DIY Cost
$100-$300
Time Required
~480 min
Difficulty
Expert (10/10)
Official Warranty
2 years
Cost Comparison
DIY Repair
$100-$300
Parts only — you do the labor
Third-Party Shop
$1000-$2000
Parts + professional labor
Official Repair
$1500-$3000
Manufacturer service center
Tools & Parts Needed (DIY)
Always use the correct tools for your specific model. Using wrong-sized screwdrivers can strip screws and cause additional damage.
Step-by-Step DIY Guide
Follow these steps carefully. Take photos at each stage for reference during reassembly.
Drain all fluids
Drain the coolant and oil from your Subaru Outback. Remove the radiator hoses, heater hoses, and any intake components blocking access to the cylinder head.
This is one of the most complex DIY automotive repairs. It requires 6–10 hours of labor and a torque wrench. If you are not confident, hire a professional.
Remove the cylinder head
Disconnect the exhaust manifold, intake manifold, fuel injectors, ignition coils, and timing cover. Remove the timing belt/chain and mark the cam timing position. Remove the head bolts in the reverse of the torque sequence. Lift the head off.
Inspect and prep surfaces
Check the head for warpage with a straight edge and feeler gauge — more than 0.002" requires machining. Clean both the head and block deck surfaces completely with a gasket scraper and solvent. Remove all old gasket material.
Install the new gasket and reassemble
Place the new multi-layer steel head gasket on the block (it only fits one way). Lower the head onto it carefully. Install new head bolts (they are torque-to-yield and cannot be reused) and torque in three stages per the service manual.
Refill fluids and test
Reassemble all components, refill oil and coolant, and bleed the cooling system. Start the engine and monitor for leaks and overheating. Check for white exhaust smoke (coolant leak) and oil condition (milky = coolant mixing). Drive 500 miles and re-torque the head if specified.
Is It Worth Repairing?
Your Subaru Outback is currently worth approximately $33,000. A head gasket repair through a third-party shop costs $1000-$2000, which is 5% of the device value.
This repair is worth it. The cost is well below 50% of the device value, making repair the financially smart choice.
Frequently Asked Questions
How much does head gasket repair cost for a Subaru Outback?
DIY repair costs $100-$300 for parts only. Third-party repair shops charge $1000-$2000 including labor. Official Subaru repair costs $1500-$3000. The best option depends on your skill level, budget, and warranty preferences.
Can I do head gasket repair myself?
This repair has a difficulty rating of 10/10 (Expert). This is an advanced repair that requires specialized tools and experience. Consider professional repair unless you have significant electronics repair experience.
How long does head gasket repair take?
Head Gasket Repair on a Subaru Outback typically takes approximately 480 minutes. This includes disassembly, the actual repair, reassembly, and testing. First-time repairs may take 50-100% longer. Professional shops can often complete it faster due to experience and specialized tools.
Is it worth repairing my Subaru Outback?
Your Subaru Outback is worth approximately $33,000. A head gasket repair through a third-party shop costs $1000-$2000 (about 5% of device value). This repair is definitely worth it — the cost is well under half the device value.
What warranty options are available?
DIY repairs typically come with None warranty on the parts themselves. Third-party shops usually offer 1 year on parts and labor. Official Subaru repair comes with 2 years warranty and uses genuine OEM parts. For maximum peace of mind and warranty coverage, official repair is the safest choice.
External Resources
Trusted third-party resources for this repair: