These LS water pump coolant port covers are designed to seal open coolant ports on GM LS-series engines during engine storage, transport, teardown, and fabrication work. Laser cut from 1/4” thick acrylic, they provide a rigid, durable barrier that helps prevent debris, dust, and moisture from entering the cooling system while the engine is non-operational. Ideal for engines on stands, palletized motors, or vehicles undergoing long-term projects, these covers offer clean, temporary protection for exposed coolant passages.
Note: Product images shown feature the Smoked Grey acrylic finish. Multiple colors and finishes are available—please select your preferred option before checkout. Additional custom colors may be available upon request and may require an additional fee. Engines, engine components, and accessories shown in photos are not included with the covers.
Compatible Engines
LS1
LS2
LS3
LS6
LS9
LS Truck Engines (4.8L, 5.3L, 6.0L, 6.2L)
Key Features
Fits GM LS-series water pump coolant ports
Sold as a pair
Laser cut from 1/4” thick acrylic
Heavy-duty thickness for storage and transport
Helps prevent debris and moisture intrusion
Designed for non-running engines only
Applications
Engine storage
Engine transport
Teardown & rebuilds
Fabrication and mock-up
Shop and display use
⚠️ Not intended for use on a running engine or exposure to exhaust heat.
