2004 Thermostats, Housings & Fillers

Water Neck and Thermostat Housing, 45 Degree, Swivel, Black, O-Ring Style, Includes Hardware, Chevy, LS, Each

Part Number: TSN-HC8937BK

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order

LSX STRAIGHT WATER NECK

Part Number: TSN-HC8938C

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order

LSX STRAIGHT WATER NECK W/ THERMOSTAT

Part Number: TSN-HC8938KT

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order

Thermostat Bypass Pipe

Part Number: ADO-12593217

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 8, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

Water Necks and Thermostat Housings, Replacement, Stock Style, Steel, Black, Chevrolet, GMC, 6.6L Diesel, Each

Part Number: ADO-15-10631

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 8, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

Thermostat, Mechanical, OE, 187 degrees, Standard-flow, Each

Part Number: ADO-131-178

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Water Necks and Thermostat Housings, Replacement, Stock Style, Aluminum/Steel, Natural, Chevrolet, 1.6L, Each

Part Number: ADO-15-81580

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order