HomeBelts and Cooling > Hoses and PipesDorman 800-706 Automatic Transmission Oil Cooler Line Connector
Part #: 800-706

Dorman 800-706 Automatic Transmission Oil Cooler Line Connector

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7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Avalanche 2500, Silverado 2500 HD, Silverado 3500, Suburban 2500, Sierra 2500 HD, Sierra 3500, and Yukon XL 2500
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Overview of Dorman 800-706 Transmission Oil Cooler Line Connector

The Dorman 800-706 automatic transmission oil cooler line connector is designed for reliable fluid transfer in heavy-duty Chevrolet and GMC trucks. Engineered with durable metal construction and precise fitting specifications, this connector ensures a secure connection for transmission cooling systems in select Chevrolet and GMC models.

  • Constructed from durable metal for long-lasting performance
  • Straight fitting angle for direct line connections
  • Male inverted flare fitting on one end (0.75 in)
  • Male threaded fitting on the other end (0.875 in)
  • Compatible with Chevrolet and GMC heavy-duty trucks
  • Includes one oil line connector per package

Detailed Product Description

The Dorman 800-706 automatic transmission oil cooler line connector is specifically designed to maintain the integrity of the transmission cooling system in Chevrolet Avalanche 2500, Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, Silverado 3500, Suburban 2500, and Yukon XL 2500 models. Its metal construction provides resistance to corrosion and wear, essential for the demanding conditions of heavy-duty trucks. The straight fitting angle facilitates straightforward installation and fluid flow, while the combination of a male inverted flare fitting (0.75 inch) and a male threaded fitting (0.875 inch) ensures compatibility with factory transmission oil cooler lines.

Common Applications and Issues Addressed

  • Replacement of worn or damaged transmission oil cooler line connectors
  • Resolving transmission fluid leaks caused by faulty fittings
  • Maintaining proper transmission fluid flow and cooling efficiency
  • Preventing overheating issues related to compromised cooler line connections
  • Supporting transmission system integrity in heavy-duty Chevrolet and GMC trucks

Installation Notes and Tips

When installing the Dorman 800-706 connector, ensure that the fittings are clean and free of debris to prevent leaks. Use appropriate tools to tighten the male inverted flare and male threaded ends securely without over-tightening, which could damage the fittings. Although this connector does not include thread sealer, applying a compatible thread sealant or tape may help ensure a leak-free connection depending on your vehicle’s service manual recommendations. Always verify compatibility with your specific Chevrolet or GMC model before installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing dependable performance for transmission cooling systems. The 800-706 connector undergoes quality inspections to ensure fit and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation or Dorman’s official resources for exact warranty terms.

BrandDorman
Part Number800-706
Fitting AngleStraight
Fitting Attachment End Type 1Male Inverted Flare
Fitting Attachment End Type 2Male Thread
Fitting Size End 1 (in)0.75 In
Fitting Size End 2 (in)0.875 in
MaterialMetal
Package Contents1 Oil line Connector
Thread Sealer PresentNo

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003ChevroletAvalanche 2500N/ARadiator Side; Transmission Oil Cooler Line 5/8 In. Quick Connector w/ 7/8 In. Thread; Package Quantity: 1
2003ChevroletSilverado 2500 HD8.1LV8N/ARadiator Side; Transmission Oil Cooler Line 5/8 In. Quick Connector w/ 7/8 In. Thread; Exc. Allison Automatic Transmission; Package Quantity: 1
2003ChevroletSilverado 35008.1LV8N/ARadiator Side; Transmission Oil Cooler Line 5/8 In. Quick Connector w/ 7/8 In. Thread; Exc. Allison Automatic Transmission; Package Quantity: 1
2003ChevroletSuburban 25008.1LV8N/ARadiator Side; Transmission Oil Cooler Line 5/8 In. Quick Connector w/ 7/8 In. Thread; Package Quantity: 1
2003GMCSierra 2500 HD8.1LV8N/ARadiator Side; Transmission Oil Cooler Line 5/8 In. Quick Connector w/ 7/8 In. Thread; Exc. Allison Automatic Transmission; Package Quantity: 1
2003GMCSierra 35008.1LV8N/ARadiator Side; Transmission Oil Cooler Line 5/8 In. Quick Connector w/ 7/8 In. Thread; Exc. Allison Automatic Transmission; Package Quantity: 1
2003GMCYukon XL 25008.1LV8N/ARadiator Side; Transmission Oil Cooler Line 5/8 In. Quick Connector w/ 7/8 In. Thread; Package Quantity: 1

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

15194557

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.