Description
Nothing’s more frustrating than losing coolant or oil pressure when you’re in the middle of harvest or planting. These cylinder head plugs might look like simple pieces of metal, but they’re what keep everything sealed up tight in your engine. When one starts weeping or pops out completely, you’ll know it right away—and you’ll need this replacement to get back to work.
What You’re Getting
- Precision-engineered plug that fits your New Holland engine perfectly without modifications
- Durable construction that handles the constant heat cycles and pressure changes farm engines dish out
- Proper thread design that seals tight and stays put through thousands of hours of operation
- Direct replacement that installs with basic hand tools—no special equipment needed
Built for Real Farm Work
This plug fits the popular New Holland T4, T5, T6, and T7 series tractors, plus their T4000 and T5000 counterparts. These are the workhorses you see in fields everywhere—from compact utility tractors perfect for livestock operations up to the bigger row-crop machines that pull heavy implements through long days of planting, cultivating, and harvesting.
Made to Last
Engine plugs take a beating from the extreme temperatures and pressures inside your diesel engine. This one’s built with materials that won’t corrode, crack, or work loose under the constant expansion and contraction that happens every time you fire up your tractor. It’s designed to seal properly and stay sealed, season after season.
Installation Notes
Thread this plug in by hand first to avoid cross-threading, then snug it down with the right torque—tight enough to seal but not so tight you strip the threads. Clean the hole thoroughly before installation, and check for any damage to the threads in the cylinder head. A little thread sealant helps ensure a leak-free installation that’ll last.






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