• (2) Plugs
• (2) O-rings
• (2) Bolts

The JEGS 555-53551 Engine Coolant Crossover Delete Kit is designed to block off the rear steam passages or coolant crossover ports on GM LS Gen III, Gen IV, and Gen V LT cylinder heads. Manufactured from durable cast and billet aluminum, this block-off style kit provides a clean, low-profile solution that delivers added clearance in tight engine bays while maintaining reliable sealing performance. The precision-machined plugs are engineered for proper fitment and are designed to remain in place during cylinder head bolt removal, simplifying service and maintenance.

Features:

• Compatible with GM LS Gen III and Gen IV engines and Gen V LT applications
• Block-off design for rear steam passages or coolant crossover ports
• Cast and billet aluminum construction for strength and durability
• Low-profile design adds clearance in tight engine bays
• Designed to remain installed during cylinder head bolt removal
• Natural finish

Includes:

• (2) Aluminum block-off plugs
• O-rings
• Mounting bolts