Keep transmission fluid flowing between the transmission and its oil cooler with the Dorman - OE Solutions Automatic Transmission Oil Cooler Line Connector, part number 800-755. It is a brass fitting designed to replace a damaged original connector and seal the cooler line connection. It fits many vehicles, among them the 1988-1999 Chevrolet C1500 4.3L / 5.0L / 5.7L / 6.2L / 6.5L / 7.4L, 1988-1999 Chevrolet K1500 4.3L / 5.0L / 5.7L / 6.2L / 6.5L and 1976-1985 Chevrolet Impala 3.8L / 4.1L / 4.3L / 4.4L / 5.0L / 5.7L / 6.6L / 7.4L. See the "Vehicles it fits" section for the full list.
- Quality replacement: designed to fit and work like the original equipment connector.
- Durable construction: made of brass for a precise fit and leak-free durability.
- Performance tested: Dorman has rigorously pressure tested this connector for reliable performance.
- Ideal shop supply: Dorman recommends keeping one on hand any time the transmission oil cooler line is serviced.
Specifications: straight fitting with a male-thread end 1 (0.25 in. outside diameter) and a female-thread end 2. Thread sealer is already applied. The package contains one transmission line connector, and the listed applications use one. Country of origin: China.
Signs this part may need replacing: transmission fluid seeping at the cooler line fitting, or cracked, damaged or stripped connector threads. If a failed connector is the source of the leak, this part replaces it.
Interchange: 905-212
905212 · 08637742 · 8086377420 · 8086776620
This part cross-references / interchanges with the following part numbers:
08637742, 8086377420, 8086776620, 905-212
Frequently Asked Questions
What does the Dorman 800-755 connector do?
It joins the automatic transmission oil cooler line at its fitting. It provides a sealed connection for transmission fluid traveling between the transmission and the oil cooler.
Does it fit the 1988-1999 Chevrolet C1500 4.3L / 5.0L / 5.7L / 6.2L / 6.5L / 7.4L and 1988-1999 Chevrolet K1500 4.3L / 5.0L / 5.7L / 6.2L / 6.5L?
Yes. The 1988-1999 Chevrolet C1500 4.3L / 5.0L / 5.7L / 6.2L / 6.5L / 7.4L and 1988-1999 Chevrolet K1500 4.3L / 5.0L / 5.7L / 6.2L / 6.5L are both listed applications. Check the "Vehicles it fits" section to confirm your year and engine.
What are the connector's specifications?
It is a straight brass fitting with a male-thread end and a female-thread end. End 1 has a 0.25 in. outside diameter, and thread sealer is already applied.
What comes in the package?
The package contains one transmission line connector, and the listed applications use one connector.
What are signs the cooler line connector may need replacing?
Transmission fluid seeping at the cooler line fitting, or cracked or stripped connector threads, can be signs of a failing connector. Find the source of the leak before you replace parts.
