1998 Thermostats, Housings & Fillers

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

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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

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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

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Water Neck, Thermostat Housing, Chrysler, Small Block 318-360, 1964-1978, Billet, Two Piece, 75 Degree, O-Ring, Each, Black

Part Number: MCH-BTH-408-08

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Estimated Ship Date: Nov 17, 2025 if ordered today

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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

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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

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

Part Number: MCH-BTH-204-05

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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

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Water Neck, Swivel, 90 degree, Billet Aluminum, Black, O-ring Sealing Style, Ford, Small Block Windsor, Each

Part Number: CSI-9110BLK

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Estimated Ship Date: Dec 8, 2025 if ordered today

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Water Neck, Billet Aluminum, Black Anodized, Swivel, 90 Degree, Ford, Small Block Windsor, Each

Part Number: CSI-9111BLK

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Estimated Ship Date: Dec 12, 2025 if ordered today

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

Part Number: HSE-4910-350-241

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Estimated Ship Date: Dec 1, 2025 if ordered today

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

Part Number: HSE-4910-440-245

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Water Neck, Billet Aluminum, Black, -12AN Male, Straight Up, (2) -6AN Female, Chevy, Mopar, Big Block, Each

Part Number: MEZ-WN1912S

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Estimated Ship Date: Nov 17, 2025 if ordered today

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Engine Coolant Thermostat Housing

Part Number: RNB-902-1041

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Estimated Ship Date: Dec 5, 2025 if ordered today

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LSX STRAIGHT WATER NECK

Part Number: TSN-HC8938BK

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Estimated Ship Date: Jan 15, 2026 if ordered today

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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

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Estimated Ship Date: Jan 16, 2026 if ordered today

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Thermostat-170 Degrees w/ Seals

Part Number: SNN-880070

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Estimated Ship Date: Dec 1, 2025 if ordered today

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High Flow Thermostat-180 Degrees w/ Seal

Part Number: SNN-2067-180

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Estimated Ship Date: Dec 2, 2025 if ordered today

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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 11, 2025 if ordered today

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Engine Coolant Thermostat Housing

Part Number: RNB-902-1007

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Water Neck, Swivel, Billet Aluminum, Black Anodized, O-ring, 90 degree, for 1.5 in. Hose, Ford, Small Block

Part Number: CVS-TSH7BK

2.67 out of 5 stars ( 9 )

Estimated Ship Date: Jan 12, 2026 if ordered today

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UltraStat Thermostat-192 Degrees w/ Seal

Part Number: SNN-5426-190

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Estimated Ship Date: Dec 1, 2025 if ordered today

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

Part Number: RNB-902-756

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 5, 2025 if ordered today

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Thermostat, Spec-R, 160 Degrees F, Steel/Copper, Universal, Each

Part Number: SNN-MRD101

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Estimated Ship Date: Today

Fail-Safe Thermostat-180 Degrees

Part Number: SNN-7226-180

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Estimated Ship Date: Dec 2, 2025 if ordered today

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