High Performance Water Pumps

A water pump is key to making your entire system work. The engines drive belt operates the water pump. As the belt turns, the pump turns. The blades on your pump then force coolant to flow through the engine and back to the radiator to be cooled by your radiator fan. Factory vehicles water pumps are designed to keep your factory engine cool. Your high performance engine creates higher heat, which increases the cooling demand. Make sure your system doesn’t fail on you and upgrade to a high performance water pump. A high performance water pump has thicker, stronger flanges and shafts. They also feature larger bearings to handle the stress of a higher performance engine. Not only do you gain a better functioning cooling system by upgrading your water pump, you can also clean up your engine bay more. Many aftermarket water pumps have aluminum, chrome plated, or powder coated. Additionally, aluminum water pumps will help reduce weight.

Sport Compact Warehouse is your one stop shop for High Performance Water Pumps. Whether your looking for mechanical or electrical pumps we've got you covered. If you have any questions regarding aftermarket water pumps reach out to one of our experienced representatives today and we will help you make a more informative decision for your 1990 GMC S15.
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Eaton 913A481
Please Note:

Some images might not represent the actual product

Eaton 913A481 Detroit Truetrac 8.5" 30 Spline Differential with 10 Bolt for GM
for 1990 GMC S15 ALL

$791.30

Save: $103.21
Sale Price:

$688.09

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 18 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Extended Cab Pickup 2-Door
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Extended Cab Pickup 2-Door
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Extended Cab Pickup 2-Door
,
Eaton 912A317
Please Note:

Some images might not represent the actual product

Eaton 912A317 Detroit Truetrac Differential
for 1990 GMC S15 ALL

$735.39

Save: $95.92
Sale Price:

$639.47

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 4 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Extended Cab Pickup 2-Door
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Extended Cab Pickup 2-Door
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Extended Cab Pickup 2-Door
,
DETROIT LOCKER-TRACTECH 911A319
Please Note:

Some images might not represent the actual product

DETROIT LOCKER-TRACTECH 911A319
for 1990 GMC S15 ALL

$717.05

Save: $93.53
Sale Price:

$623.52

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 9 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
,
DETROIT LOCKER-TRACTECH 911A415
Please Note:

Some images might not represent the actual product

DETROIT LOCKER-TRACTECH 911A415
for 1990 GMC S15 ALL

$717.05

Save: $93.53
Sale Price:

$623.52

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 1 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV
 
Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
 
1990 GMC S15 ALL equipped with
4.3L V6 Gas OHV,
2.8L V6 Gas OHV,
2.5L l4 Gas OHV Please verify your axle spline count as 1990 could be 26 or 28 spline
Extended Cab Pickup 2-Door
,
WEIAND 9240P
Please Note:

Some images might not represent the actual product

WEIAND 9240P Engine Water Pump
for 1990 GMC S15 ALL

$267.67

Save: $34.91
Sale Price:

$232.76

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 2 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6
 
Aluminum
Six Blade Impeller
Twisted Snout
Not For Competition Use
Polished Finish
 
1990 GMC S15 ALL equipped with
4.3L V6 Aluminum
Six Blade Impeller
Twisted Snout
Not For Competition Use
Polished Finish
,
WEIAND 9208P
Please Note:

Some images might not represent the actual product

WEIAND 9208P Engine Water Pump
for 1990 GMC S15 ALL

$265.49

Save: $34.63
Sale Price:

$230.86

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 3 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6
 
Aluminum
Six-Blade Impeller
Twisted Snout Design
Short Style
Not For Competition Use
Polished Finish
 
1990 GMC S15 ALL equipped with
4.3L V6 Aluminum
Six-Blade Impeller
Twisted Snout Design
Short Style
Not For Competition Use
Polished Finish
,
WEIAND 9222
Please Note:

Some images might not represent the actual product

WEIAND 9222 Engine Water Pump
for 1990 GMC S15 ALL

$248.02

Save: $32.35
Sale Price:

$215.67

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 1 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6
 
Aluminum
Eight Blade Impeller
Non-Adjustable Design
Twisted Snout Design
Short Style
Satin Finish
 
1990 GMC S15 ALL equipped with
4.3L V6 Aluminum
Eight Blade Impeller
Non-Adjustable Design
Twisted Snout Design
Short Style
Satin Finish
,
WEIAND 9208
Please Note:

Some images might not represent the actual product

WEIAND 9208 Engine Water Pump
for 1990 GMC S15 ALL

$204.57

Save: $26.68
Sale Price:

$177.89

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 5 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6
 
Aluminum
Six-Blade Impeller
Twisted Snout Design
Short Style
Not For Competition Use
Satin Finish
 
1990 GMC S15 ALL equipped with
4.3L V6 Aluminum
Six-Blade Impeller
Twisted Snout Design
Short Style
Not For Competition Use
Satin Finish
,
WEIAND 9240
Please Note:

Some images might not represent the actual product

WEIAND 9240 Engine Water Pump
for 1990 GMC S15 ALL

$204.57

Save: $26.68
Sale Price:

$177.89

Estimated Ship Date: Today

Free DelieveryFree Ground Shipping
In Stock - 9 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6
 
Aluminum
Six Blade Impeller
Twisted Snout
Not For Competition Use
Satin Finish
 
1990 GMC S15 ALL equipped with
4.3L V6 Aluminum
Six Blade Impeller
Twisted Snout
Not For Competition Use
Satin Finish
,
MOROSO 63420
Please Note:

Some images might not represent the actual product

MOROSO 63420 Manifold Filler Neck Kit For Chevy V8 Apps
for 1990 GMC S15 ALL

$101.19

Save: $13.20
Sale Price:

$87.99

Estimated Ship Date: Today

In Stock - 10 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6
 
w/ 90¡ V6 Chevy Motor
 
1990 GMC S15 ALL equipped with
4.3L V6 w/ 90¡ V6 Chevy Motor
,
MOROSO 63468
Please Note:

Some images might not represent the actual product

MOROSO 63468 Manifold Filler Neck For Chevy V8 Apps
for 1990 GMC S15 ALL

$87.39

Save: $11.40
Sale Price:

$75.99

Estimated Ship Date: Today

In Stock - 5 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6
 
w/ 90¡ V6 Chevy Motor
 
1990 GMC S15 ALL equipped with
4.3L V6 w/ 90¡ V6 Chevy Motor
,
MOROSO 63423
Please Note:

Some images might not represent the actual product

MOROSO 63423 Filler Neck Housing For Chevy V8 Apps
for 1990 GMC S15 ALL

$64.39

Save: $8.40
Sale Price:

$55.99

Estimated Ship Date: Today

In Stock - 11 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6
 
w/ 90¡ V6 Chevy Motor
For 90¡ V6 Chevy Intake Manifolds
 
1990 GMC S15 ALL equipped with
4.3L V6 w/ 90¡ V6 Chevy Motor
For 90¡ V6 Chevy Intake Manifolds
,
MOROSO 63471
Please Note:

Some images might not represent the actual product

MOROSO 63471 Water Neck Block-Off Plate For Chevy V8 Apps
for 1990 GMC S15 ALL

$21.84

Save: $2.85
Sale Price:

$18.99

Estimated Ship Date: Today

In Stock - 1 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
4.3L V6
 
w/ 90¡ V6 Chevy Motor
 
1990 GMC S15 ALL equipped with
4.3L V6 w/ 90¡ V6 Chevy Motor
,
COMETIC C5299-018
Please Note:

Some images might not represent the actual product

COMETIC C5299-018 Water Pump Gasket Each
for 1990 GMC S15 ALL

$3.12

Save: $0.41
Sale Price:

$2.71

Estimated Ship Date: Today

In Stock - 1 New In Stock
EngineFit NotesFitment Notes
1990 GMC S15 ALL equipped with
L
 
Engine Water Pump Mounting Gasket
 
1990 GMC S15 ALL equipped with
L Engine Water Pump Mounting Gasket
1990 GMC S15 ALL equipped with
L
 
Engine Water Pump Mounting Gasket
 
1990 GMC S15 ALL equipped with
L Engine Water Pump Mounting Gasket
1990 GMC S15 ALL equipped with
L
 
Engine Water Pump Mounting Gasket
 
1990 GMC S15 ALL equipped with
L Engine Water Pump Mounting Gasket