Using new head bolts when performing a cylinder head installation is always a good idea however, on late-model engines that came from the factory with TTY (torque-to yield) head bolts, replacement is an absolute necessity. TTY bolts are designed to exert the maximum clamping force for a tight head gasket seal, however they permanently stretched and could fail if re-used.
Ford - 1993-97 Probe L4 2.0L, Mazda - 1993-02 626 L4 2.0L, 1993-97 MX-6 L4 2.0L, 2001-03 Protege L4 2.0L, 2002-03 Protege5 L4 2.0L
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Package Information
Orderable Status:YesQuantity:1Package UOM:Smallest Pack (Consumer Level)Package Level GTIN:00023913659097Package Bar Code:023913659097Weight Variance:0.000000000Stacking Factor:0Inner Quantity:0
Extended Information
Country of Origin (Primary):TWEmission Code:Legal USHarmonized Tariff Code (HTS):7318159000Harmonized Tariff Code (Schedule B):7318159000Life Cycle Status Code:Available to OrderLife Cycle Status Description:Available to OrderMSDS Required Flag:NoNational Popularity Code:Last 5% of Product Group Sales Value National Popularity Description:Last 5% of Product Group Sales ValuePallet Layer Maximum:1
Interchange
Fel-Pro:ES74020Magirus:HB33076MAHLE Original:GS33270