1998 Thermostats, Housings & Fillers

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

Part Number: ADO-131-124

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• $20.00 Summit Bucks

Water Neck Base, Black Anodized, Mopar, Big Block, Each

Part Number: MEZ-WN0029S

Not Yet Reviewed

Estimated Ship Date: Today

Thermostats, Mechanical,GM LS Series Cast Aluminum 90° Water Neck Outlet & Thermostat (GM 5.7L, 6.0L, 6.2L), Polished, Temp 82°C/180°F

Part Number: PQX-5234693

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

• Drop Ship
• Special Order

Thermostat, Standard-flow, 160 degrees, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, Each

Part Number: OMX-1710650

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 27, 2026 if ordered today

• Drop Ship
• Special Order

Engine Coolant Thermostat Housing. 1998-2004 Volkswagen

Part Number: URO-010355

Not Yet Reviewed

Estimated Ship Date: Today

WATER NECK OUTLET, GM LS Series, Cast Aluminum 90°, (GM 5.7L, 6.0L, 6.2L), Polished

Part Number: PQX-5234691

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

• Drop Ship
• Special Order

Thermostat, Mechanical, 176 degrees, Standard-flow, Copper/Stainless Steel, Jeep, Each

Part Number: CWA-4778975

Not Yet Reviewed

Estimated Ship Date: Today

Water Neck, Billit Aluminum, Black/Natural, 90 Degree, with Bleeder Valve, Chevy, Big/Small Block, Kit

Part Number: CTR-80-016

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 4, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Water Neck, Thermostat Housing, Ford, Small Block 289, 302, 351W, Billet, 75 Degree, Two Piece, O-Ring, Each, Clear Coat

Part Number: MCH-BTH-304

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Water Neck, Thermostat Housing, Billet, Big/Small Block, Chevy, 75 Degree, Each, O-Ring, Clear Coat

Part Number: MCH-BTH-204

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Water Necks and Thermostat Housings, 90 degree, Swivel, Aluminum, Clear, Polished, 1.500 in. Outlet Size, Chevrolet, Small/Big Block, Each

Part Number: MCH-BTH-202

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Water Neck, Thermostat Housing, Chevy, LS Engine, 75 Degree, Two Piece, Billet, Clear Coat

Part Number: MCH-BTH-214

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Water Necks and Thermostat Housings, 45 degree, Swivel, Aluminum, Clear, Polished, 1.500 in. Outlet Size, Chevrolet, Small Block LS, Each

Part Number: MCH-BTH-213

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Water Necks and Thermostat Housings, 90 degree, Swivel, Aluminum, Satin Black Anodized, 1.500 in. Outlet Size, Dodge, Jeep, 5.2L, 5.9L, Each

Part Number: MCH-BTH-402-08

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Water Neck, Thermostat Housing, Chrysler, Small Block 318-360, 1979-2003, Billet, Two Piece, 75 Degree, O-Ring, Each, Clear Coat

Part Number: MCH-BTH-404

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Water Necks and Thermostat Housings, 45 degree, Swivel, Aluminum, Satin Black Anodized, 1.500 in. Outlet Size, Dodge, Jeep, 5.2L, 5.9L, Each

Part Number: MCH-BTH-407-08

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Water Neck, Aluminum, Red Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, With Filler Neck for Radiator Cap, Chevy, Small/Big Block, Each

Part Number: HSE-4910-383-203

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Water Neck, Aluminum, Blue Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Ford, Small Block, Each

Part Number: HSE-4910-302-201

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Water Neck, Thermostat Housing, Ford, Small Block 289, 302, 351W, Billet, 75 Degree, Two Piece, O-Ring, Each, Polished

Part Number: MCH-BTH-304-05

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Water Neck, Thermostat Housing, Billet, Big/Small Block, Chevy, 75 Degree, Each, O-Ring, Polished

Part Number: MCH-BTH-204-05

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Water Necks and Thermostat Housings, 45 degree, Swivel, Aluminum, Polished, 1.500 in. Outlet Size, Ford, 289/302/351 Small Block Windsor, Each

Part Number: MCH-BTH-303-05

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Water Neck, Aluminum, Blue Anodized, O-Ring, 75 Degree, 1.500 in. Outlet, Chevy, Small/Big Block, Each

Part Number: HSE-4910-350-241

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Water Neck, Aluminum, Clear Anodized, O-Ring, 75 Degree, 1.500 in. Outlet, Dodge, Magnum Engines, Each

Part Number: HSE-4910-440-245

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Thermostats, Mechanical,GM LS Series Cast Aluminum 90° Water Neck Thermostat (GM 5.7L, 6.0L, 6.2L), as-cast,Temp 82°C/180°F

Part Number: PQX-5234685

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

• Drop Ship
• Special Order

Water Neck, Billet Aluminum, Black Anodized, Straight Up, Chevy, Big/Small Block, Each

Part Number: MOR-63461

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 8, 2025 if ordered today

• Drop Ship
• Special Order