CHEVROLET Chevy small block Gen III/IV (LS-based engines) Cooling & Heating

Water Pump Housings, Holley, LS Cooling Manifold, Aluminum, Natural, Steam Tube Inlet, 1/8 in.-NPT, for Holley Mid-Mount Accessory Drive Only, Each

Part Number: HLY-97-163

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Thermostat, 160 Degree, High-Flow, Bypass Valve, Copper/Brass, Stainless Body, Housing, Chevy, Pontiac, Each

Part Number: SUM-363-160

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Today

Radiator and Dual Fan, Direct-Fit, Aluminum, Natural, 2-Row, Crossflow, Chevy, Each

Part Number: DWR-4139105A

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping
• Mfr. Rebate

Product Mail-In Rebate

Rebate Expires: 9/30/2025

Get a FREE Jacket after rebate on this DeWitts product! Go to www.summitracing.com/go/dwr to submit rebate. ...Read More

Get a FREE Jacket after online rebate with the purchase of a qualifying DeWitts Radiator! Go to www.summitracing.com/go/dwr to submit rebate. Valid on purchases made between 9/1/25 and 9/30/25. Claim must be submitted by 1/31/26. This offer cannot be combined with other discounts. Rebate intended for end consumer only. Show Less

×

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

Part Number: SUM-370998

3.82 out of 5 stars ( 11 )

Estimated Ship Date: Today

Radiator and Fan, Performance Fit, Aluminum, Crossflow, 2-Row, Dual Fan, Chevy, Each

Part Number: GRI-CU-70016-LS

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Automatic Transmission Cooler Bypass Delete Kit, Aluminum, Sealing Washers, 6L80/6L90/8L90/Allison, Chevrolet, Small Block LS, Each

Part Number: TRG-6L80CLRBYPAS

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Water Pumps, Mechanical, Pump Assembly, Standard-volume, Counterclockwise, Aluminum, Black, for Mid-Mount Accessory Drive Only, GM, LS, 4.8-7.0L, Each

Part Number: HLY-97-200

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Water Pump, Hi Flow, Mechanical, High-volume, Aluminum, Natural, Counterclockwise, Chevy, Pontiac, 5.7L LS

Part Number: BRA-1670

3.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

• Free Shipping

Radiators, LSX Modified Radiator Modules, Downflow, Aluminum, Natural, Transmission Cooler, Dual Fan, Black Shroud, Chevy, Small Block LS, Kit

Part Number: DWR-6139017A

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping
• Mfr. Rebate

Product Mail-In Rebate

Rebate Expires: 9/30/2025

Get a FREE Jacket after rebate on this DeWitts product! Go to www.summitracing.com/go/dwr to submit rebate. ...Read More

Get a FREE Jacket after online rebate with the purchase of a qualifying DeWitts Radiator! Go to www.summitracing.com/go/dwr to submit rebate. Valid on purchases made between 9/1/25 and 9/30/25. Claim must be submitted by 1/31/26. This offer cannot be combined with other discounts. Rebate intended for end consumer only. Show Less

×

Radiator, Performance, Module, Aluminum, Polished, Crossflow, 2 Row, Dual 12 in. Fans, Kit

Part Number: RAD-GMA546AK

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Radiator, LS swap, Cooling Module, Show & Go, Crossflow, Aluminum, LS Engine, 33.75 in. x 18.5 in. x 6.5 in.

Part Number: BCI-82311

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Radiator, OE Fit, Cross Flow, Aluminum, Natural, Dual Spal Fans, 13 in. Diameter, Double Pass, LS Engine, Chevrolet, Pontiac, Kit

Part Number: CIR-15-11030

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Radiator, Aluminum, Natural, 3-Row, LS Swap, Chevy Truck, Each

Part Number: SUM-384070

3.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

• Free Shipping

Radiator, LS Swap, Crossflow, Dual-Row, Aluminum, Natural, Transmission Cooler, 26.24 in. Wide, 18.63 in. High, 3.00 in. Thick, Chevy, Pontiac, Each

Part Number: SUM-381448

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Radiator Fan, Dual, Electric, Jetstreme, Nylon, Black, 12.0 in. Diameter, 2,600 cfm, Each

Part Number: MAR-MJS26K

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

• Free Shipping

Radiator, LS Swap, Crossflow, Dual-Row, Aluminum, Natural, Transmission Cooler, 31.25 in. Wide, 18.62 in. High, 3.00 in. Thick, Chevy, Pontiac, Each

Part Number: SUM-381446

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Radiator, Performance, Module, Aluminum, Polished, Crossflow, 2 Row, Single Fan, Chevy, Pontiac, LS Swap, Kit

Part Number: RAD-CHC547AK

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

• Free Shipping

Thermostat, 160 Degree, High-Flow, Copper/Brass, Chevy, LS, Each

Part Number: MRG-6367

4.19 out of 5 stars ( 16 )

Estimated Ship Date: Today

Water Pump, Mechanical, Standard-volume, Aluminum, Natural, Counterclockwise Rotation, Cadillac, Chevy, GMC, Hummer

Part Number: ADO-12703898

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

• Free Shipping

Radiator, Aluminum, Natural, 3-Row, LS Swap, Chevy, Each

Part Number: SUM-384064

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

• Free Shipping

Thermostat, 180 Degree, High-Flow, Copper/Brass, GM, LS, Each

Part Number: MRG-6368

4.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

Water Pump, Mechanical, Standard-volume, Aluminum, Natural, Cadillac, Chevy, Pontiac, Small Block LS, Each

Part Number: MEL-MWP-503

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

• Free Shipping

Radiator, Performance, Aluminum, Polished, Crossflow, 2 Row, Chevrolet, GMC, Each

Part Number: RAD-GMT578A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Radiator, Aluminum, Natural, 3-Row, LS Swap, Chevy, GM, Each

Part Number: SUM-384062

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Coolant Expansion Tanks, Aluminum, Fabricated, Bolt-In, Natural, Chevrolet, Each

Part Number: MOR-63808

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping