1999 Thermostats, Housings & Fillers

Water Neck, O-ring Sealing Style, Aluminum, Natural, 186 degree Thermostat, Buick, Cadillac, Chevy, GMC, Each

Part Number: ADO-15-11057

4.44 out of 5 stars ( 18 )

Estimated Ship Date: Today

• $20.00 Summit Bucks

Water Neck, Aluminum, Natural, Each

Part Number: ADO-15-10412

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

• $20.00 Summit Bucks

Thermostat, Mechanical, OE, 198 degrees, Standard-flow, Cadillac, Chevy, GMC, Oldsmobile, Each

Part Number: ADO-131-151

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

• $20.00 Summit Bucks

Water Neck and Thermostat Housing, Stock, Aluminum, Natural, Cadillac, Chevrolet, GMC, Each

Part Number: ADO-15-1716

Not Yet Reviewed

Estimated Ship Date: Today

• $20.00 Summit Bucks

Thermostat, Mechanical, OE, 180 degrees, Standard-flow, Each

Part Number: ADO-131-128

Not Yet Reviewed

Estimated Ship Date: Today

• $20.00 Summit Bucks

Thermostat, Mechanical, OE, 195 degrees, Standard-flow, Each

Part Number: ADO-131-120

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• $20.00 Summit Bucks

Thermostat, Mechanical, OE, 190 degrees, Standard-flow, Each

Part Number: ADO-131-103

Not Yet Reviewed

Estimated Ship Date: Today

• $20.00 Summit Bucks

Thermostat, Mechanical, OE, 190 degrees, Standard-flow, Each

Part Number: ADO-131-92

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

LSX STRAIGHT WATER NECK

Part Number: TSN-HC8938BK

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order

Water Necks and Thermostat Housings, Replacement, Stock Style, Steel, Natural, Chevrolet, GMC, Oldsmobile, Each

Part Number: ADO-15-1794

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

THERMOSTAT ASM,ENG COOL

Part Number: ADO-131-204

Not Yet Reviewed

Estimated Ship Date: Today

• $20.00 Summit Bucks

Water Necks and Thermostat Housings, Replacement, Stock Style, Aluminum, Natural, Saturn, Each

Part Number: ADO-15-11020

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

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

Part Number: TSN-HC8937C

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order

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