1998 Thermostats, Housings & Fillers

Water Neck, Zinc Alloy, Chrome Plated, O-Ring, 45 Degree, Chevy, Big/Small Block, Each

Part Number: TRD-9229

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

• Special Order

THERMOSTA

Part Number: NAL-12559336

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

• Special Order

Thermostat, Mechanical, OE, 190 degrees, Standard-flow, Each

Part Number: ADO-131-92

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Water Neck, Billet Aluminum, Natural, -16 AN Male, Straight Up, Chevy, Big/Small Block, Each

Part Number: CTR-80-100

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Drop Ship
• Special Order

Water Neck, Chevy LS, Cast Aluminum, As Cast Finish, 45 Degree, 5.7L, 6.0L, 6.2L, Each

Part Number: PQX-5234681

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

• Drop Ship
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Water Neck, Cast Aluminum, Copper Plated, O-Ring, 15-Degree, Chevy, Big/Small Block, Each

Part Number: SUM-371102CPR

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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 14, 2026 if ordered today

• Drop Ship
• Special Order

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

Engine Coolant Thermostat Housing

Part Number: RNB-902-1041

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Special Order

LSX STRAIGHT WATER NECK

Part Number: TSN-HC8938BK

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

• $10.00 Summit Bucks
• Special Order

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 14, 2026 if ordered today

• Drop Ship
• Special Order

Thermostat-170 Degrees w/ Seals

Part Number: SNN-880070

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Special Order

Engine Coolant Thermostat Housing

Part Number: RNB-902-1007

Not Yet Reviewed

Estimated Ship Date: Today

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 2, 2025 if ordered today

• Special Order

UltraStat Thermostat-192 Degrees w/ Seal

Part Number: SNN-5426-190

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

• Special Order

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

Part Number: SNN-MRD101

Not Yet Reviewed

Estimated Ship Date: Today

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: Dec 1, 2025 if ordered today

• Drop Ship
• Special Order

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: Dec 1, 2025 if ordered today

• Drop Ship
• Special Order

Engine Coolant Thermostat / Water Inlet Assembly. 1998-2005 BMW, Land Rover

Part Number: URO-012659

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

• Drop Ship
• Special Order

Water Necks and Thermostat Housings, Replacement, Stock Style, Steel, Natural, Chevrolet, GMC, Oldsmobile, Each

Part Number: ADO-15-1794

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

• $20.00 Summit Bucks
• Special Order

Water Neck Plate, Billet Aluminum, Blue Anodized, Straight Up, Chevy, Mopar, Big Block, Small Block, Each

Part Number: MEZ-WN0912B

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Water Neck Base, Polished, Mopar, Big Block, Each

Part Number: MEZ-WN0029U

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

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

Part Number: MEZ-WN0007U

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Engine Coolant Thermostat Housing

Part Number: RNB-902-1019

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Special Order