PDI Big Boss™ Paccar MX13 Head Bolt KitAvailable for: Paccar MX13 Engines Key Benefits Maximum clamping force Superior fatigue resistance Thermal Stability Corrosion Protection Ready to Install Kit Warranty: 1 Year Unlimited Mile Warranty Upgrade cylinderhead integrity and lock in longterm performance with PDIs premium head bolt kit. Engineered for heavyduty powerhouses that run harder and longer, every bolt is precisionmachined and heat treated creating a denser, more uniform grain
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