John Deere Cylinder Head Screw, 1/2" X 6.378" - R534287

Key Features

• Secure Cylinder Head Fastening — precisely clamps the cylinder head to the engine block to maintain proper gasket compression and a reliable seal during operation.
• Heavy-Duty Steel Construction — engineered from high‑strength steel to endure high engine loads and elevated temperatures typical in agricultural and heavy‑duty equipment.
• Corrosion-Resistant Finish — phosphate and oil coating provides corrosion protection while supporting smooth installation in demanding environments.
• Precision UNC Thread Design — 1/2" thread size with UNC2A specification delivers strong, consistent engagement across service intervals.
• OEM John Deere Quality — manufactured to original equipment specifications for dependable fitment and long‑term performance in John Deere engines.
• Ideal for Replacements and Rebuilds — designed for replacing worn or damaged cylinder head bolts and during engine rebuilds to preserve head‑to‑block sealing.

Product Details

• Product Type: Cylinder Head Screw
• Brand: John Deere
• Part Number: R534287
• Thread Size: 1/2"
• Length: 6.378"
• Thread Type: UNC2A
• Head Type: Hex washer head
• Application: Heavy‑duty engine fastener used to secure the cylinder head to the engine block in compatible John Deere engines

Compatibility

The John Deere R534287 Cylinder Head Screw is used across a variety of John Deere agricultural tractors equipped with compatible engine assemblies.

• 5E Series — 5085E, 5100E
• 5M Series — 5085M, 5100M, 5115M, 5100MH, 5100ML, 5115ML
• 6M Series — 6095M, 6105M, 6110M, 6120M, 6130M, 6135M, 6140M, 6145M, 6155M, 6175M, 6195M
• 6R Series — 6120R, 6130R, 6135R, 6145R, 6155R, 6175R, 6195R, 6215R, 6230R, 6250R
• 7M & 7R Series — 7M, 2007M, 2157M, 2307200R7215R7230R

Compatibility may vary depending on engine configuration and serial number. Always confirm with your equipment parts catalogue before ordering.