Dorman 624-134 Automatic Transmission Oil Cooler Hose Assembly - Inlet (Upper)

Automatic Transmission Oil Cooler Hose Assembly

Dorman 624-134 is an automatic transmission oil cooler hose assembly built with metal and rubber components for fluid transfer between the transmission and the transmission oil cooler. It is a direct-fit replacement for select Chevrolet C1500, Chevrolet C2500, Chevrolet K1500, Chevrolet K2500, GMC C1500, GMC C2500, GMC K1500, and GMC K2500 applications.

Use this transmission line when you need a replacement for the inlet (upper) cooler hose on 1998-1999 Chevrolet and GMC trucks with the listed configurations. Part number 624-134 is made to maintain leak-resistant fluid routing under transmission operating conditions.

• Replacement automatic transmission oil cooler hose assembly
• Constructed from metal and rubber components
• Natural finish hose with a 52-inch length
• Male threads on one end and quick disconnect on the other
• Maximum working pressure: 100 psi
• Operating temperature range: -40°F to 329°F
• Non-flexible design with no spring included

Detailed Product Overview

This Dorman transmission cooler hose is engineered for the upper inlet line position and is built to carry critical transmission fluid between the transmission and cooler. The metal hose construction supports stable routing, while the quick disconnect and male-threaded ends match the specified OE-style connection points. If you are replacing a worn or leaking transmission cooler line on a 1998-1999 Chevrolet C1500 or GMC K1500, 624-134 provides a direct replacement path for the original line.

This part cross-references 15723417 for the same application.

What This Part Helps Address

• Transmission fluid leaks at the cooler line
• Cracked, corroded, or damaged upper inlet hose sections
• Restricted fluid transfer between the transmission and cooler
• Improper sealing at the line connection points
• Replacement needs on select Chevrolet and GMC truck cooling systems

Installation Notes and Tips

Confirm the inlet (upper) position before installation and verify the vehicle does not have the excluded 100 Amp Generator (K60) configuration where noted in fitment. Inspect the mating fittings and sealing surfaces before connecting the new line. Because this is a rigid metal hose assembly, route it to match the original path and avoid kinks, contact points, or stress at the ends.

• Fits 1998-1999 Chevrolet C1500, inlet (upper), wo/100 Amp Generator (K60)
• Fits 1998-1999 Chevrolet K1500, inlet (upper), wo/100 Amp Generator (K60)
• Fits 1998-1999 GMC C1500, inlet (upper), wo/100 Amp Generator (K60)
• Fits 1998-1999 GMC K1500, inlet (upper), wo/100 Amp Generator (K60)
• Fits 1998 Chevrolet C1500, inlet (upper)
• Fits 1998 Chevrolet C2500, inlet (upper), wo/100 Amp Generator (K60)
• Fits 1998 Chevrolet K1500, inlet (upper)
• Fits 1998 Chevrolet K2500, inlet (upper), wo/100 Amp Generator (K60)
• Fits 1998 GMC C1500, inlet (upper)
• Fits 1998 GMC C2500, inlet (upper), wo/100 Amp Generator (K60)
• Fits 1998 GMC K1500, inlet (upper)
• Fits 1998 GMC K2500, inlet (upper), wo/100 Amp Generator (K60)

Quality Assurance

Dorman replacement parts are built to match the original application requirements for fit and function. This transmission oil cooler hose assembly is intended to restore proper fluid routing in the specified Chevrolet and GMC truck applications.