97+ 1990 GMC G3500 Oil & Fluids Rally STX Parts - Auto Barn

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97+ 1990 GMC G3500 Oil & Fluids Rally STX Parts - Auto Barn

Rally STX · Oil & Fluids (94 products)

Exact-fit parts for the 1990 GMC G3500 Rally STX.

High Performance Transmission Oil Cooler

Hayden

Hayden

Part # 512

Fits with Conditions

High Performance Transmission Oil Cooler

$49.47

Engine Oil Cooler Metal Line Kit

Hayden

Hayden

Part # 293

Fits with Conditions

Engine Oil Cooler Metal Line Kit

$48.06

Ultra-Cool Transmission Oil Cooler

Four Seasons

Four Seasons

Part # 53004

Fits with Conditions

Ultra-Cool Transmission Oil Cooler

$132.62

Oil Pressure Gauge Switch

Standard Motor Products

Standard Motor Products

Part # PS-262

Fits with Conditions

Oil Pressure Gauge Switch

$47.08

Oil Cooler Installation Kit

Four Seasons

Four Seasons

Part # 53009

Fits with Conditions

Oil Cooler Installation Kit

$15.72

Engine Oil Filter

Denso

Denso

Part # 150-2056

Fits with Conditions

Engine Oil Filter

$10.57

Engine Oil Cooler Line

Dorman

Dorman

Part # 625-169

Fits with Conditions

Engine Oil Cooler Line

$41.14

Rapid-Cool Transmission Oil Cooler with Thermal Bypass

Hayden

Hayden

Part # 699

Fits with Conditions

Rapid-Cool Transmission Oil Cooler with Thermal Bypass

$83.88

PCV Valve Mounting Grommet

Dorman

Dorman

Part # 42056

Fits with Conditions

PCV Valve Mounting Grommet

$8.17

Oil Drain Plug Pilot Point 1/2-20, Head Size 9/16 In.

Dorman

Dorman

Part # 65147

Fits with Conditions

Oil Drain Plug Pilot Point 1/2-20, Head Size 9/16 In.

$7.83

Ultra-Cool Transmission Oil Cooler

Hayden

Hayden

Part # 1015

Fits with Conditions

Ultra-Cool Transmission Oil Cooler

$121.31

Engine Oil Cooler Replacement Hose

Hayden

Hayden

Part # 112

Fits with Conditions

Engine Oil Cooler Replacement Hose

$36.34

PCV Valve Mounting Grommet

Dorman

Dorman

Part # 42061

Fits with Conditions

PCV Valve Mounting Grommet

$7.23

Engine Oil Pump Intermediate Shaft

Sealed Power

Part # 224-6154

Fits with Conditions

Engine Oil Pump Intermediate Shaft

$16.16

Rapid-Cool Transmission Oil Cooler with Thermal Bypass

Hayden

Hayden

Part # 697

Fits with Conditions

Rapid-Cool Transmission Oil Cooler with Thermal Bypass

$63.22

Ultra-Cool Transmission Oil Cooler

Four Seasons

Four Seasons

Part # 53000

Fits with Conditions

Ultra-Cool Transmission Oil Cooler

$34.14

Bosch Oil Filter

Bosch

Bosch

Part # 3430

Fits with Conditions

Bosch Oil Filter

$6.55

Power Steering Oil Cooler

Four Seasons

Four Seasons

Part # 53019

Fits with Conditions

Power Steering Oil Cooler

$37.87

Engine Oil Cooler Line

Dorman

Dorman

Part # 625-126

Fits with Conditions

Engine Oil Cooler Line

$45.99

Engine Oil Cooler Line

Dorman

Dorman

Part # 625-120

Fits with Conditions

Engine Oil Cooler Line

$38.62

Frequently Asked Questions

Do these parts fit my 1990 GMC G3500 Rally STX?

This page groups parts listed for the 1990 GMC G3500 Rally STX. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What oil & fluids options are available for my 1990 GMC G3500 Rally STX?

We offer a wide selection of oil & fluids parts for the 1990 GMC G3500 Rally STX. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 1990 GMC G3500 Rally STX?

We carry parts from trusted brands including Dorman, Four Seasons, Hayden, Sealed Power, and Standard Motor Products, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 1990 GMC G3500 Rally STX parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 1990 GMC G3500 Rally STX parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.