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Dorman 624-342 Automatic Transmission Oil Cooler Hose Assembly - Inlet and Outlet
| Brand | Dorman 624-342 |
|---|---|
| Position | Inlet and Outlet |
| Contains Spring | No |
| End 1 Type | Hose Barb |
| End 2 Type | Hose Barb |
| Flexible | No |
| Gasket or Seal Included | No |
| Hose Color | Black |
| Hose Color | Coated |
| Hose Material | Metal |
| Length | 19 |
| Maximum Operating Temperature (┬░F) | 329 Deg. F. |
| Maximum Working Pressure | 100 |
| Minimum Operating Temperature (┬░F) | -40 Deg. F. |
| Package Contents | 1 Transmission Line |
| Fits | Lexus · 5 vehicles |
Replacement hose assembly. Constructed for leak-free fluid delivery between transmission components.
Metal and rubber construction. Combines durable materials for dependable fluid transfer.
Hose barb ends. Provides a secure connection at both ends.
Cross-references 3290748010 for the same application. See all 1.
Automatic Transmission Oil Cooler Hose for Lexus RX300
Dorman 624-342 is a replacement automatic transmission oil cooler hose assembly for the 1999-2003 Lexus RX300, inlet and outlet. It routes transmission fluid between the transmission and the oil cooler to support steady fluid transfer in a direct-fit service part.
Key Features
- Replacement automatic transmission oil cooler hose assembly for Lexus RX300 applications
- Constructed with metal and rubber components for fluid transfer service
- Black, coated hose finish
- 19-inch length with hose barb ends on both sides
- Maximum working pressure: 100 psi
- Operating temperature range: -40°F to 329°F
- Compatible with inlet and outlet transmission cooler line routing
- Part number 624-342 for service identification
Detailed Description
This Dorman transmission cooler hose assembly is built to replace a worn or leaking line in the automatic transmission cooling circuit. It is made from metal hose material with rubber components where needed, helping maintain leak-free fluid delivery between the transmission and the transmission oil cooler. For 1999-2003 Lexus RX300 models, 624-342 provides the correct inlet and outlet application for service work on the transmission cooling system. This part cross-references Toyota/Lexus OE-style application 3290748010 for the same vehicle coverage.
Common Problems It Can Address
- Transmission fluid leaks at the cooler line
- Cracked, corroded, or damaged cooler hose sections
- Restricted fluid flow between the transmission and cooler
- Heat-related deterioration of the original transmission line
- Service replacement for a failed Lexus RX300 inlet or outlet hose
Installation Notes and Tips
Verify line routing and connection style before installation. This assembly uses hose barb ends and does not include a gasket or seal. Confirm clearance, length, and port alignment on the vehicle before final tightening, and inspect the surrounding cooler and transmission fittings for wear or contamination.
Quality Assurance
Dorman replacement parts are engineered for direct service use in automotive repair. This hose assembly is built to handle transmission fluid temperatures from -40°F to 329°F and a maximum working pressure of 100 psi.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2003 | Lexus | RX300 | 3.0L | V6 | Inlet and Outlet | — |
| 2002 | Lexus | RX300 | 3.0L | V6 | Inlet and Outlet | — |
| 2001 | Lexus | RX300 | 3.0L | V6 | Inlet and Outlet | — |
| 2000 | Lexus | RX300 | 3.0L | V6 | Inlet and Outlet | — |
| 1999 | Lexus | RX300 | 3.0L | V6 | Inlet and Outlet | — |
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