A Grand Cherokee WK search can return reservoirs for different engines. The selected bottle here is the 3.6L ERB V6 petrol recovery bottle, not the separate 3.0L diesel expansion tank.
Keep the engine, grade and vehicle configuration explicit. The WK badge alone does not establish that either tank is the correct part.
Check the narrower petrol application
The WK petrol recovery bottle with cap uses reference 5165708AA. It is listed for Laredo and Limited AWD automatic SUVs, within 04/2011–02/2016.
Other grades, engines, drive layouts and build ranges require separate confirmation. A broader WK catalogue family or a nearby registration year should not remove those limits.
Compare the actual bottle and hose configuration
Match the original reference, shaped translucent body, yellow hinged cap, mounting ears and hose routing. Compare full-unit views before a cropped cap photograph so the hose and mount positions remain traceable.
The cap colour is one visible feature, not a pressure specification or an interchangeability test. Do not infer an unlisted capacity, cap rating or port size from the photograph.
Keep the package boundary clear
The selected supply is one reservoir with cap in the photographed configuration, including the attached hose arrangement shown. Coolant, additional vehicle hoses and installation hardware are excluded.
Tell the installer which exact assembly is being supplied and ask what else the diagnosed repair requires. A bottle with an attached hose is not a promise that every hose on the vehicle is included.
Use the existing leak guide for the fault question
The existing Cherokee coolant-leak guide addresses the broader complaint. This article stays on selecting the petrol recovery-bottle configuration. A part that matches the photographs does not establish the source of a leak.
Send the VIN, build month, engine, grade, drive/gearbox details, original reference and accessible bottle/connection photographs for a fitment check. Use vehicle-specific service information for the repair.
Prepared from application records and the linked product photographs. The featured workshop scene is an AI-generated editorial illustration. Information reviewed on 3 November 2026.