【Note】:These engines have two different designs for the head bolts. 1st design head bolts have 16 Long Bolts: 150mm, 4 Short Bolts: 100mm, 10 Small Bolts: 45mm. 2nd design head bolts have 20 Long Bolts: 100mm, 10 Small Bolts: 45mm. This kit ONLY FITS engine with 2ND DESIGN HEAD BOLTS (20 long bolts: 100mm, 10 small bolts: 45mm). Please double check your engine head bolts to make sure this kit will fit your engine before making the purchase.
【Function】:The cylinder head bolts hold the cylinder head in place and ensure that the cylinder head will continue to hold up despite the tremendous amounts of pressure in the combustion chamber. Therefore the cylinder head bolts are important part of your engine. They should always be in perfect condition and should be maintained properly. So, if you notice that this part is showing signs of excessive wear, have them replaced immediately.
【Manufacturer Part Number and Warranty】 : MA-4216910034, ES72390, BTR00568,If there is any problem with the product,please contact us and we'll solve it for you immediately.