Availability
1978 Water Necks and Thermostat Housings
Water Neck, Aluminum, Red Anodized, O-Ring, 75 Degree, 1.500 in. Outlet, Chevy, Small/Big Block, Each
Part Number: HSE-4910-350-243
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered today
Engine Coolant Thermostat Housing
Part Number: RNB-902-2055
Not Yet Reviewed
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Neck and Thermostat Housing, Stock, Steel, Natural, Chrysler, Dodge, Plymouth, Each
Part Number: RNB-902-3015
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Neck, Billet Aluminum, Black, Radiator Cap Filler, Chevy, Big/Small Block, Each
Part Number: MOR-63468
Estimated Ship Date: Apr 10, 2026 if ordered today
Estimated Ship Date: Apr 10, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Clear, Polished, 1.500 in. Outlet Size, Chrysler, Dodge, Plymouth, Big Block, Each
Part Number: MCH-BTH-411
Not Yet Reviewed
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Neck, Replacement, Aluminum, Natural, Each
Part Number: FSS-84844
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Thermostat Housing, Cast Iron, Natural, Jeep, Each
Part Number: OMX-1711805
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Clear, Polished, -16 AN Outlet Size, Ford, 289/302/351 Small Block Windsor, Each
Part Number: MCH-BTH-305
Not Yet Reviewed
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Neck, Billet Aluminum, 90 Degree, Swivel, -16 AN, Chevy, Each
Part Number: PFF-10-2116
Not Yet Reviewed
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Thermostat Housing, 90 Degree, Swivel, -16 AN Outlet, Aluminum, Blue Anodized, Chevy, Each
Part Number: PGP-PRP-6424
Not Yet Reviewed
Estimated Ship Date: Apr 7, 2026 if ordered today
Estimated Ship Date: Apr 7, 2026 if ordered today
Water Neck, Straight-Up Outlet, Chrysler, Dodge, Plymouth, Each
Part Number: FSS-84830
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Neck, Billet Aluminum, Polished, 90 Degree, Ford, Big Block, Each
Part Number: CTR-80-057
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
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: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Clear, Polished, -20 AN Outlet Size, Chrysler, Dodge, Plymouth, Small Block, Each
Part Number: MCH-BTH-410
Not Yet Reviewed
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Clear, Polished, -20 AN Outlet Size, Ford, Each
Part Number: MCH-BTH-336
Not Yet Reviewed
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Clear, Polished, -20 AN Outlet Size, Chrysler, Dodge, Plymouth, Big Block, Each
Part Number: MCH-BTH-416
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Satin Black Anodized, -20 AN Outlet Size, Ford, 289/302/351 Small Block Windsor, Each
Part Number: MCH-BTH-306-08
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Water Neck, Aluminum, Clear Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Ford, Small Block, Each
Part Number: HSE-4910-302-205
Not Yet Reviewed
Estimated Ship Date: Apr 2, 2026 if ordered today
Estimated Ship Date: Apr 2, 2026 if ordered today
Water Neck, Aluminum, Black Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Ford, Small Block, Each
Part Number: HSE-4910-302-202
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
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: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Neck, Straight Up, Billet Aluminum, Clear Anodized, Chevy, Chrysler, Dodge, Plymouth, Each
Part Number: MOR-63476
Not Yet Reviewed
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Neck, Aluminum, Clear Anodized, O-Ring, 75 Degree, 1.500 in. Outlet, Ford, 426/460, Each
Part Number: HSE-4910-460-245
Not Yet Reviewed
Estimated Ship Date: Apr 2, 2026 if ordered today
Estimated Ship Date: Apr 2, 2026 if ordered today
Water Neck, Aluminum, Black Anodized, O-Ring, 75 Degree, 1.250 in. Outlet, Pontiac, Small/Big Block, Each
Part Number: HSE-4910-455-202
Not Yet Reviewed
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Neck, Replacement, Chrysler, Dodge, Plymouth, Each
Part Number: FSS-84909
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Estimated Ship Date: Monday 3/16/2026 if shipped by air
Water Necks and Thermostat Housings, Allstar Performance Chevy Aluminum Water Necks, 90 Degree, Swivel, Aluminum, Black, Chevy, Each
Part Number: AAF-ALL30371
Not Yet Reviewed
Estimated Ship Date: Apr 22, 2026 if ordered today
Estimated Ship Date: Apr 22, 2026 if ordered today
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