CHEVROLET Chevy small block Gen III/IV (LS-based engines) Thermostats, Housings & Fillers

Water Neck, Aluminum, Clear Anodized, O-Ring, Straight, 1.500 in. Outlet, Chevy, LS1/LS2/LS6, Each

Part Number: HSE-4910-347-245

Not Yet Reviewed

Estimated Ship Date: Monday 9/15/2025

Thermostat Housing Bolts, Black Oxide, Hex, Chevy, Small Block, LS1/LS6, Kit

Part Number: ARP-134-7402

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/15/2025

Water Neck, 60 degree, Swivel, Aluminum, Polished, Chevy, LSX, Each

Part Number: SPE-4939

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/15/2025

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

Part Number: MCH-BTH-214-08

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Estimated Ship Date: Monday 9/15/2025

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Thermostat Housing Bolts, Black Oxide, 12-Point, Chevy, Small Block, LS1/LS6, Kit

Part Number: ARP-134-7401

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Estimated Ship Date: Monday 9/15/2025

Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Satin Black Anodized, -16 AN Outlet Size, Chevrolet, Small Block LS, Each

Part Number: MCH-BTH-215-08

Not Yet Reviewed

Estimated Ship Date: Monday 9/15/2025

Thermostat Housing Bolts, Stainless Steel, Polished, Hex, Chevy, Small Block, LS1/LS2/LS6/L76, Kit

Part Number: ARP-434-7402

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/15/2025

Water Neck, Billet Aluminum, Natural, Straight Up, 1.50 in. Inlet Diameter, Chevy, 4.8L LS, 5.3L LS, 6.0L LS

Part Number: CTR-80-022

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/15/2025

Water Neck Outlet, Billet Aluminum, Polished, Straight, LS1, LS2, LS7, Each

Part Number: PQX-5234613

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Thermostat Housing - Chevy LS Straight - 16AN - Blue

Part Number: CVS-TSH5SABL

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Thermostat, HD, 180 Degrees F, Stainless Steel, Each

Part Number: SNN-4009-80

Not Yet Reviewed

Estimated Ship Date: Monday 9/15/2025

Water Neck, 90 degree, 1.50 in. Hose Barb, Billet Aluminum, Blue Anodized, Buick, Chevy, GMC, Pontiac, Small Block LS, Each

Part Number: CVS-TSH5BL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 10, 2025 if ordered today

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Water Neck, Billet Aluminum, Black Anodized, Straight Up, 1.50 in. Hose, GM, LS Engine, Each

Part Number: CVS-TSH5SBK

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Thermostat Housing - Chevy LS Straight - 16AN - Black

Part Number: CVS-TSH5SABK

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Polished, -20 AN Outlet Size, Chevrolet, Small Block LS, Each

Part Number: MCH-BTH-216-05

Not Yet Reviewed

Estimated Ship Date: Monday 9/15/2025

Thermostat, Mechanical, OE, 185 degrees, Standard-flow, Copper/Brass, Each

Part Number: NAL-12600171

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Thermostat, 180 Degree, Chevy, V8, Each

Part Number: JET-10179

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/15/2025

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

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Water Neck, 90 degree, -16 AN, Billet Aluminum, Blue Anodized, Buick, Chevy, GMC, Pontiac, Small Block LS, Each

Part Number: CVS-TSH5ABL

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Thermostat Housing, Aluminum, Black Anodized, Swivel, 90 Degree, -16 AN Outlet, Chevy, Each

Part Number: PGP-PRP-6726

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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Water Neck, Straight Up, O-ring Style, Billet Aluminum, Clear Anodized, Chevy, Each

Part Number: CSI-911LS115C

Not Yet Reviewed

Estimated Ship Date: Monday 9/15/2025

Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Satin Black Anodized, -20 AN Outlet Size, Chevrolet, Small Block LS, Each

Part Number: MCH-BTH-216-08

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Water Neck, Aluminum, Black Anodized, O-Ring, Straight, 1.250 in. Outlet, Chevy, LS1/LS2/LS6, Each

Part Number: HSE-4910-347-202

Not Yet Reviewed

Estimated Ship Date: Sep 29, 2025 if ordered today

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Water Neck, Aluminum, Clear Anodized, O-Ring, Straight, 1.250 in. Outlet, Chevy, LS1/LS2/LS6, Each

Part Number: HSE-4910-347-205

Not Yet Reviewed

Estimated Ship Date: Sep 26, 2025 if ordered today

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Water Neck, Thermostat Housing, Cast Aluminum, Copper Plated, 60 Degree, Swivel, Chevrolet, LS, Each

Part Number: SUM-370998CPR

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/15/2025