A head gasket -- also know as a cylinder-head gasket -- is placed between an engine's cylinder head and engine block to prevent fluids such as oil and coolant from leaking out or unwanted fluids from seeping in. Replacing a head gasket typically requires removal of the valve cover and any associated bolts. In many cases, the thermostat and its gasket are also repaired, and the cylinder head itself may need to be machined or replaced to repair any damage.
Typical costs:
Hiring a mechanic to replace a cylinder-head gasket typically costs about $1,000, depending on the labor rate at the shop that performs the work, and if the cylinder head itself needs to be machined or replaced. The cylinder head must be removed, and the thermostat and its gasket are often replaced as part of the repair. In addition, the cylinder head may need to be machined or replaced to repair any cracking or warping. Many shops will also flush the coolant and replace it as well, which can cost about $50-$150. Many shops will include this in the repair cost.
Purchased separately, a cylinder-head gasket[1] can cost $5-$500. Higher-priced units are full gasket sets including additional parts, such as seals, and the lower-cost units include only the gasket. Thermostats[2] can cost $30-$75, while thermostat gaskets run from $1 or less to about $15.
Expect to pay $75 -$120 per hour for labor, depending on whether the work is performed at a dealership or an independent shop. It depends on the model, but the job can take 5-8 hours. If the cylinder head needs to be machined, that will add extra time.
Dealerships typically charge more for repairs not covered by a factory warranty, but their technicians are intimately familiar with the brand of cars and use factory parts. Independent repair shops may charge less, but they may use aftermarket parts, which are manufactured to factory specifications, but are not made by the automaker.
The price for a head gasket replacement should include the cost of the gasket or gasket set, coolant, and a thermostat and thermostat gasket if the thermostat is replaced as part of the repair.
If possible, it is best to get an estimate before approving any work. However, if the head gasket has "blown" and is leaking coolant, that may not be possible.
Additional costs:
In many cases, the thermostat and gasket may be replaced and the coolant may be flushed, although many shops would include this in the price of the job. A coolant flush, if not included, typically costs $50-$145.
Discounts:
Some repair shops might off a discount on repairs for regular customers, usually about 10%. For example, some shops offer discounts for AAA members[3] .
Replacing a cylinder-head gasket is a difficult job best left to professional mechanics or those with advanced auto-repair experience. Part of the reason for this is that there is always a chance that the head must be machined, which needs to be done by a professional. For those who are skilled enough to attempt the repair at home, a series of videos explains
Shopping for head gasket replacement:
The National Institute for Automotive Service Excellence, a non-profit trade group for technicians and other automotive service professionals, has a searchable directory[4] of certified shops.
Several online retailers, including Auto Parts Warehouse[5] and J.C. Whitney[6] sell gaskets, gasket sets, and thermostats and gaskets.
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Had been introduced to a friend of the family who ended up charging 400 for head gasket replacement but after pulling apart the motor which he did say if he found other issues he would repair and let me know. in total he had to replace valve stem seals. grind valves or whatever. and flushed the system because of very milky oil. in total it shot up to 1400. is that a fair price?
Realistically, $600-$700 is a reasonable amount depending on whether you are paying for parts and labor or just labor; and especially dependent on what other parts you are electing to replace when having the head gasket replaced. I paid $500 for labor and personally purchased the parts on my own. I purchased additional required parts to ensure my car would continue to last once the work was done (cylinder head gasket kit, valve cover gasket, thermostat, timing belt and water pump kit) - however, if you are on a tight budget, you can simply elect to go with the bare minimum and risk your car's engine crapping out again within a matter of months. I was referred to my mechanic by an old friend. Those who paid $1,000 on up were ripped off, sorry to say.
7k it took me (18hrs)to do this head job i had to took it to the machine shop clean up engine remove oil pan and strianner also replace water pump and Radiator.$75per hr
Told 2.4 needs head gasket repair listed a ton of parts,car runs fine,blows coolant from over flow tank. 2.4 timing chain kit WAY Out Of Line!!!quoted min.2800.00 plus all extra timing set! And this is a Chev. Dealer
The shop said it was only going to take a couple of days but it took a week. They said it was better to put in a new water pump and timing belt. It was quoted at first, 2984.00 and when I told him the other guy told me 2800, he said OK.
very costly repair I believe we were over charged especially because the repair did not even last 9 months! Specks REFUSED to do anything to remedy the problem! Now there is a young family,a toddler with autism, and a new baby on the way without their family car.
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