Honda S2000 Coolant Reservoir Tank 19101-PCX-000

Honda S2000 Coolant Overflow Tank - Genuine OEM (19101-PCX-000)

Pop the hood on your S2000 and that coolant tank has gone all yellow, cloudy, and stained? Yeah, time does that. This is the genuine Honda replacement, part 19101-PCX-000, and it swaps out that old discolored expansion tank for a fresh, clean white one. On a car people keep as nice as an S2000, a crusty brown-tinted tank sticks out like a sore thumb in an otherwise tidy bay, and this is the easy fix that brings it back to looking right.

Why These Go Yellow In The First Place

Here's what's happening to that tank. It sits right there in the engine bay soaking up heat cycle after heat cycle for years, and over time the plastic yellows, clouds up, and stains from the coolant inside. After a couple decades it just looks tired, no amount of scrubbing gets that discoloration back out because it's baked into the plastic itself. So if your bay is clean everywhere else and this thing's letting the side down, a fresh tank is the quick win. White and clear again, like the car just rolled off the line.

It's Not Just About Looks

There's a real reason beyond cosmetics too. This is your coolant expansion tank, so it holds the coolant that pushes out of the system as it heats up and expands, then pulls it back in as everything cools down. Trouble is, all those years of heat don't just discolor the plastic, they make it brittle, and a brittle old tank can crack or split on you and start weeping coolant, which is the last thing you want on a hot engine. Dropping in a fresh OEM tank means you're not waiting around for the old one to fail, you've got a solid tank that'll do its job for years.

Genuine Honda, Straight Bolt-In

This is the real Honda piece, molded to fit the S2000 exactly, so it drops right into the factory spot with your hoses and cap lining up the way they should. No trimming, no adapting, no generic tank that's almost the right shape. It's the same part Honda put on the car, just brand new and bright white again.

What You Get

• Genuine Honda coolant overflow/expansion tank (19101-PCX-000)
• Fresh white plastic to replace a yellowed, stained, or brittle tank
• Holds expansion coolant as the system heats and cools
• Direct OEM replacement, factory fit
• Sold individually

Fits These Cars

• 2000-2009 Honda S2000 (AP1 and AP2)

Note: Genuine Honda coolant overflow/expansion tank, part number 19101-PCX-000, for the 2000-2009 Honda S2000 (AP1 and AP2). Replaces an old, yellowed, stained, or brittle expansion tank with a fresh white OEM unit. The tank holds coolant as the system heats and expands and returns it as it cools; an aged, brittle tank can crack and leak, so this both cleans up the engine bay and restores a sound part. Direct OEM replacement that fits the factory location. Sold individually. One tank per order.