Parts/Miata
Miata · Buyer's guide

NA/NB Miata Shock Absorbers, Top Hats and Bump Stops

US-market 1990-1993 NA6, 1994-1997 NA8, 1999-2000 NB1, and 2001-2005 NB2. Match NA versus NB shock/spring/top-hat stack and account for Bilstein/Mazdaspeed equipment.

Current seller options

WHERE TO BUY

Open an exact listing, then confirm fitment, stock, price, and shipping with the seller before ordering.

Seller links checked . Prices and availability can change.

What you need to know

Identify NA or NB assembly, shock shaft diameter, top hat, isolators, bump stop, spring and installed ride-height hardware. Separate standard/Bilstein/Mazdaspeed applications. Diagnose leak versus harmless seepage using Mazda guidance.

OEM numbers

No universal shock number is claimed. NA and NB assemblies use generation-specific stack dimensionsconversion parts are required for a deliberate NB-assembly-on-NA setup. Mazdaspeed spring/shock restrictions on exact products must be honored.

Supersession

No NA-to-NB shock supersession is claimed. A conversion kit changes the mounting stack and is not evidence that loose NA and NB components can be mixed arbitrarily.

Fitment

Identify NA or NB assembly, shock shaft diameter, top hat, isolators, bump stop, spring and installed ride-height hardware. Separate standard/Bilstein/Mazdaspeed applications. Diagnose leak versus harmless seepage using Mazda guidance.

Aftermarket options

Koni STR.T, Sport and Special Active paths, stock-class bump stops and engineered NB-on-NA conversion kits exist. Preserve a matched four-corner system and verify spring compatibility.

Before you buy

Oil film is not always a failed damper; use the Mazda seepage/leak criteria. Do not mix NA/NB shocks, top hats, springs and bump stops without a documented conversion stack. Confirm Mazdaspeed/Bilstein restrictions.

Research and fitment sources