1999 Thermostats, Housings & Fillers

WATER NECK OUTLET & THERMOSTAT, GM LS Series, Cast Aluminum 90°, (GM 5.7L, 6.0L, 6.2L), Black, Temp 82°C/180°F

Part Number: PQX-5234687

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

• Special Order

Water Neck, Dodge, Jeep, 3.9, 5.2, 5.9L, Each

Part Number: FSS-85181

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Block Off Plate, Water Neck, Manifold, Chevy/Mopar, Big Block, Black, Each

Part Number: MEZ-WN0007S

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Water Neck, Low-Profile, 90 degree, Aluminum, Black Anodized, Housing Only, Does Not Include Outlet Fitting, Chevrolet, Each

Part Number: AAF-ALL30382

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Estimated Ship Date: Tomorrow if ordered today

• Special Order

Water Necks and Thermostat Housings, Straight, Swivel, Aluminum, Polished, -16 AN Outlet Size, Ford, 289/302/351 Small Block Windsor, Each

Part Number: MCH-BTH-305-05

Not Yet Reviewed

Estimated Ship Date: Today

Thermostat, 180 Degrees F, Stainless Steel, Each

Part Number: SNN-354-180

Not Yet Reviewed

Estimated Ship Date: Today

Water Neck, Aluminum, Chrome, 45 Degree, Chevy, Big/Small Block, Each

Part Number: PRO-141-500

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

Thermostat Housing, Aluminum, Black Anodized, Swivel, 90 Degree, 1 1/4 in. Outlet, Chevy, Each

Part Number: PGP-PRP-6720

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

• Special Order

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

Part Number: ARP-134-7401

Not Yet Reviewed

Estimated Ship Date: Today

Thermostat Housing, Aluminum, Blue Anodized, Swivel, 90 Degree, 1 1/2 in. Outlet, Chevy, Each

Part Number: PGP-PRP-6421

Not Yet Reviewed

Estimated Ship Date: Dec 5, 2025 if ordered today

• Drop Ship
• Special Order

Thermostat, Powertech, 180 Degree, Stainless Steel, Chevy, GMC, V8, Each

Part Number: JET-10175

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

Water Neck, 90 degree, -16 AN, Billet Aluminum, Black Anodized, Chevy, Small Block LS, Each

Part Number: CVS-TSH5ABK

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 22, 2025 if ordered today

• Special Order

Thermostat Housing, Aluminum, Red Anodized, Swivel, 90 Degree, 1 1/2 in. Outlet, Chevy, Each

Part Number: PGP-PRP-6271

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Drop Ship
• Special Order

Water Neck Block-Off Plate, Aluminum, Natural, Chevy, Each

Part Number: RAU-63471

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

Water Necks and Thermostat Housings, Aluminum, Polished, 1.50 in. Outlet, Straight, Each

Part Number: MLL-BPP8938S

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

• Drop Ship
• Special Order

Thermostat, Mechanical, Low Temp, 154 degrees F Opening Temperature, Stainless Steel, for use on Acura®, for use on Honda®, Each

Part Number: HYB-HYBLTT0105

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

• Drop Ship
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Water Neck, Low Profile, Swivel, O-ring Sealing Style, Aluminum, Black Anodized, 1.5 in. Outlet, Two -6 AN ports, Chevy, Chrysler, Each

Part Number: MEZ-WN1122S

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Free Shipping
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Water Neck, Low Profile, Swivel, O-ring Sealing Style, Aluminum, Red Anodized, 1.5 in. Outlet, Two -6 AN ports, Chevy, Chrysler, Each

Part Number: MEZ-WN1122R

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Free Shipping
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Thermostat, Powertech, 180 Degree, Stainless Steel, Buick, Chevy, Pontiac, V6, Each

Part Number: JET-10115

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Today

Water Manifolds

Part Number: MEZ-WAM10020U

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow if ordered today

• Free Shipping
• Special Order

WATER OUTLET

Part Number: RNB-902-301HP

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Special Order

Water Neck, Billet Aluminum, Black, Radiator Cap Filler, Chevy, Big/Small Block, Each

Part Number: MOR-63468

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 8, 2025 if ordered today

• Drop Ship
• Special Order

Fail-Safe Thermostat-192 Degrees w/ Seal

Part Number: SNN-7426-190

Not Yet Reviewed

Estimated Ship Date: Today

Thermostat Housing Bleeder; Water Neck Bleeder Plate; Can Be Replacement Part PN[63430/63431]; Incl. Water Nec

Part Number: MOR-63432

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 9, 2025 if ordered today

• Drop Ship
• Special Order

Fitting, Manifold Plate, Straight, SBC/BBC/BBM to 3/4-NPT Female, Aluminum, Polished, Each

Part Number: MEZ-WN0008U

Not Yet Reviewed

Estimated Ship Date: Nov 19, 2025 if ordered today

• Special Order