Do I need any hose adapters or connectors to hook this up?

The pump uses factory hose sizes and electrical connectors. You'll reuse your existing washer fluid lines and harness — no adapters or modifications required.

Can I install this myself, or do I need to pull the whole windshield?

Access varies by trim level, but on most Grand Cherokees the pump is accessible from the engine bay or interior. No windshield removal needed. Disconnect your old lines, unbolt the mounting bracket, and swap in the new pump.

What's your return window if the pump doesn't fit or work?

Contact ModSupply customer service directly for return eligibility and shipping details — they'll walk you through the process if anything goes wrong.