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CSR Performance

CSR Intake Manifold Water Filler Necks

4.67 out of 5 stars 6 Customer Reviews

Mount one of these CSR water necks on your manifold, and you'll have an easy way to top-off your cooling system and still have a provision for overflow. Precision-machined from lightweight 6061-T6 billet aluminum, they'll bolt right onto your manifold or an existing 2 in. spacer. Each of these necks comes with stainless steel hardware; a cap is not included.

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CSR Intake Manifold Water Filler Necks CSR 913AN16BLK

CSR Intake Manifold Water Filler Necks CSR 913AN16BLK

CSR Intake Manifold Water Filler Necks CSR 913AN16BLK

Water Neck and Thermostat Housing, Radiator Cap Filler Neck Style, Swivel, with O-Ring Seal and Hardware, Billet Aluminum, Black Anodized, Chevy, Each

Part Number: CSI-913AN16BLK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

CSR Intake Manifold Water Filler Necks CSR 99163

CSR Intake Manifold Water Filler Necks CSR 99163

CSR Intake Manifold Water Filler Necks CSR 99163

Water Neck, Billet Aluminum, Clear Anodized, 90 Degree, Universal, Each

Part Number: CSI-99163

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

CSR Intake Manifold Water Filler Necks CSR 99133

CSR Intake Manifold Water Filler Necks CSR 99133

CSR Intake Manifold Water Filler Necks CSR 99133

Manifold Expansion Filler, 3 in. x 12AN, Each

Part Number: CSI-99133

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

CSR Intake Manifold Water Filler Necks CSR 913C

CSR Intake Manifold Water Filler Necks CSR 913C

CSR Intake Manifold Water Filler Necks CSR 913C

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

Part Number: CSI-913C

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

CSR Intake Manifold Water Filler Necks CSR 99134

CSR Intake Manifold Water Filler Necks CSR 99134

CSR Intake Manifold Water Filler Necks CSR 99134

Water Neck, Billet Aluminum, Clear Anodized, 90 Degree, Universal, Each

Part Number: CSI-99134

Not Yet Reviewed

Estimated Ship Date: Monday 10/27/2025

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Estimated Ship Date: Monday 10/27/2025

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