Product Description
Genuine GM 12694769 Front Steam Port Coolant Crossover Tube
Fits LS2, LS3, and LS7 Car Applications | Popular Choice for LS Engine Swaps
The Genuine GM 12694769 Front Steam Port Coolant Crossover Tube connects the front steam ports between both cylinder heads on LS engines and relieves trapped coolant pressure. Featuring a left-hand outlet that exits straight above the water pump, this crossover tube is ideal for LS swaps using lower-profile intake manifolds. Designed as a direct OEM replacement, it ensures proper cooling balance and long-term reliability. Includes new flange seals and O-rings for a leak-free installation.
Key Features
- Genuine GM part number 12694769 ensures precise fitment and factory-level quality
- Connects front steam ports across both cylinder heads to relieve trapped air and coolant pressure
- Left-hand exit tube design clears front accessories and sits above the water pump outlet
- Excellent choice for LS swaps converting truck engines to car-style cooling layouts
- Includes new flange seals and O-rings for proper installation and leak-free operation
- Durable OEM construction designed to withstand continuous heat and pressure cycles
Key Fitments
- CADILLAC CTS: 2006–2007
- CHEVROLET CAMARO: 2010–2015
- CHEVROLET CAPRICE: 2011–2017
- CHEVROLET CORVETTE: 2005–2013
- CHEVROLET SS: 2014–2017
- PONTIAC G8: 2008–2009
- PONTIAC GTO: 2005–2006
Note: Designed for front-mounted steam crossover systems on LS2, LS3, and LS7 engines. Common upgrade for LS truck engines swapped into car chassis using low-profile intakes.
