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Welcome to Source One Auto Parts!

Welcome to Source One Auto Parts!

Water Pump & Thermostat

Shop New OEM water pumps and thermostats for GM vehicles. Our factory-original cooling system components are sourced from GM surplus — the correct pump flow rate, thermostat opening temperature, and mounting configuration for your specific engine.

The water pump and thermostat work together to maintain your engine at its optimal operating temperature. OEM water pumps provide the factory-specified flow rate at all engine speeds, and OEM thermostats open at the precise temperature calibrated for your engine's combustion efficiency and emissions targets.

Replace the water pump, thermostat, and coolant at the same service interval for a complete cooling system service. Verify part numbers against your engine RPO code before ordering.

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New OEM GM Heater Coolant Pump 2016-18 Cadillac ATS CT6 CTS 2.0L 23208583-1
$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75

New OEM GM Heater Coolant Pump 2016-18 Cadillac ATS CT6 CTS 2.0L 23208583

in stock

Heater Coolant Pump Description: Heater Coolant Pump Part Number: 23208583 Condition: New OEM, Generic Packaging Other Info: This i...

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SKU: 2020313

$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75
New OEM Auxiliary Water Pump Malibu 1.5L Silverado Sierra 5.3L eAssist 13592749-1
$39.99 - $39.99
$39.99
$39.99 - $39.99
$39.99

New OEM Auxiliary Water Pump Malibu 1.5L Silverado Sierra 5.3L eAssist 13592749

in stock

Auxiliary Water Pump Description: Auxiliary Water Pump Part Number: 13592749 Condition: New OEM, Generic Packaging Other Info: Stamped with...

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SKU: 2000134

$39.99 - $39.99
$39.99
$39.99 - $39.99
$39.99
Auxiliary Water Pump 2006-07 Highlander Hybrid 2006-08 Lexus RX400h 87200-48020-1
$421.76 - $421.76
$421.76
$421.76 - $421.76
$421.76

Auxiliary Water Pump 2006-07 Highlander Hybrid 2006-08 Lexus RX400h 87200-48020

Only 1 left!

New OEM Auxiliary Water Pump Assembly for 2006-07 Toyota Highlander Hybrid and 2006-08 Lexus RX400h Description: New OEM Auxiliary Water Pum...

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SKU: 5010541

$421.76 - $421.76
$421.76
$421.76 - $421.76
$421.76
New OEM GM Auxiliary Water Pump With Hose 2016-22 Chevy Malibu 1.5L 13592749-1
$127.64 - $127.64
$127.64
$127.64 - $127.64
$127.64

New OEM GM Auxiliary Water Pump With Hose 2016-22 Chevy Malibu 1.5L 13592749

in stock

Auxiliary Water Pump With Hoses Description: Auxiliary Water Pump With Hoses Part Number: 13592749, 23497076, 84285903, 84172409 Condition: N...

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SKU: 2000049

$127.64 - $127.64
$127.64
$127.64 - $127.64
$127.64
Auxilliary Water Pump Assembly New OEM GM XT5 XT6 Blazer Cruze 13592750-1
$67.14 - $67.14
$67.14
$67.14 - $67.14
$67.14

Auxilliary Water Pump Assembly New OEM GM XT5 XT6 Blazer Cruze 13592750

in stock

Auxilliary Water Pump Pump Assembly Description: Auxilliary Water Pump Pump Assembly Part Number: 13592750, 42577014 Condition: New OEM, Gene...

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SKU: 1980173

$67.14 - $67.14
$67.14
$67.14 - $67.14
$67.14
New OEM GM Heater Coolant Pump 2016-18 Cadillac CTS 16-19 ATS 3.6L 23170416-1
$60.45 - $60.45
$60.45
$60.45 - $60.45
$60.45

New OEM GM Heater Coolant Pump 2016-18 Cadillac CTS 16-19 ATS 3.6L 23170416

in stock

Heater Coolant Pump Description: Heater Coolant Pump Part Number: 23170416 Condition: New OEM, Generic Packaging Other Info: This i...

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SKU: 2020312

$60.45 - $60.45
$60.45
$60.45 - $60.45
$60.45

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