CSR Performance Thermostats, Housings & Fillers

Radiator Hose Filler, Aluminum, Natural, Inline, -16 AN to -16 AN, Each

Part Number: CSI-974

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

Radiator Hose Filler, Inline, Aluminum, Natural, -12 AN to -12 AN, Each

Part Number: CSI-975

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Radiator Hose Filler, Inline, Aluminum, Natural, 1.25 in./1.25 in., Each

Part Number: CSI-971

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Nov 17, 2025 if ordered today

Water Neck, Billet Aluminum, Clear Anodized, Swivel, 90 Degree, Chevy, Big/Small Block, Each

Part Number: CSI-912C

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/20/2025

#10AN TO #10AN RADIATOR HOSE FILLER

Part Number: CSI-977

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Radiator Hose Filler, Inline, Aluminum, Natural, 1.5 in./1.5 in., Each

Part Number: CSI-973

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

Radiator Hose Filler Inline 1 1/4- 1 1/2

Part Number: CSI-972

Not Yet Reviewed

Estimated Ship Date: Oct 23, 2025 if ordered today

• Special Order

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

Part Number: CSI-911LS115C

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

Thermostat Housing CHEVY BB WATER PUMP FLANGE TO #12AN- SET OF 2

Part Number: CSI-915BLK

Not Yet Reviewed

Estimated Ship Date: Nov 14, 2025 if ordered today

• Special Order

Thermostat Housing CHEVY SB WATER PUMP FLANGE TO #12AN- SET OF 2

Part Number: CSI-916BLK

Not Yet Reviewed

Estimated Ship Date: Nov 14, 2025 if ordered today

• Special Order

Thermostat Housing CHEVY SWIVEL THERMOSTAT HOUSING 1 1/2" CONNECTION

Part Number: CSI-912-15BK

Not Yet Reviewed

Estimated Ship Date: Nov 14, 2025 if ordered today

• Special Order

Thermostat Housing CHEVY SWIVEL THERMOSTAT HOUSING 1 1/2" CONNECTION

Part Number: CSI-912-15C

Not Yet Reviewed

Estimated Ship Date: Nov 14, 2025 if ordered today

• Special Order

CHEVY SB/BB STRAIGHT THREAD THERMOSTAT HOUSING WITH 1 1/4 FITTING

Part Number: CSI-912S-1-25C

Not Yet Reviewed

Estimated Ship Date: Nov 14, 2025 if ordered today

• Special Order

CHEVY SB/BB STRAIGHT THREAD THERMOSTAT HOUSING WITH 1 1/2 FITTING

Part Number: CSI-912S-1-5C

Not Yet Reviewed

Estimated Ship Date: Nov 14, 2025 if ordered today

• Special Order

Thermostat Housing CHEVY 350 LS1 THERMOSTAT HOUSING 1-1/4" CONNECTION

Part Number: CSI-911LS1125BLK

Not Yet Reviewed

Estimated Ship Date: Oct 23, 2025 if ordered today

• Special Order

3-WAY INLINE HOSE FILLER BODY

Part Number: CSI-978

Not Yet Reviewed

Estimated Ship Date: Oct 23, 2025 if ordered today

• Special Order