GMC SIERRA 1500 Transmission Line Adapter Fittings

Transmission Cooler Adapter, Billet Aluminum, Black Anodized, -6AN, 6L80, 6L80E, 6L90, 6L90E, Each

Part Number: EAR-1133ERL

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Estimated Ship Date: Today

Transmission Line Adapter Fittings, 1/4 in. NPS Male Threads to 3/8 in. Quick-connect Female Threads, Steel, Natural, GM, Hummer, Each

Part Number: ADO-19125677

5.0 out of 5 stars ( 4 )

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• $20 Summit Bucks

Transmission Line Adapter, Brass, Male 5/8 in.-18 Inverted Flare, Pair

Part Number: HDA-390

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Transmission Line Adapter, Brass, Snap-In, Each

Part Number: HDA-397

4.78 out of 5 stars ( 18 )

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Transmission Line Adapter Fitting, Oil Cooler End Fitting, Steel, Natural, Buick, Cadillac, Chevy, GMC, Each

Part Number: ADO-19210848

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• $20 Summit Bucks

Fitting, Transmission Cooler Line to Case, 1/4 in. NPS, Long, Most 1997-2008 4L80E Rear, Each

Part Number: RNB-800-759

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Estimated Ship Date: Today

Transmission Line Connector - Tube Size 1/2 - Thread 9/16-18 UNF

Part Number: RNB-800-619

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Estimated Ship Date: Today

CONNECTOR-ENG OIL CLR HOSE (1/2")

Part Number: NAL-23378668

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Estimated Ship Date: Apr 7, 2026 if ordered today

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• Special Order