NA/NBSeller listing
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View listing at Mossmiata; opens in a new tabMiata · Buyer's guide
NA/NB Miata Brake Master Cylinder, Booster and ABS Fitment
1990-2005 NA/NB Miata. Master-cylinder selection changes with ABS, year and later brake packages; booster and proportioning hardware are separate.
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.
NA/NBSeller listing
Listed priceSee seller for current price
View listing at Atkinsrotary; opens in a new tabNA/NBSeller listing
Listed priceSee seller for current price
View listing at Advanced Autosports; opens in a new tabWhat you need to know
Safety-critical: identify ABS and brake package, then separate master internal bypass/leak, booster/vacuum, proportioning, caliper, hose and ABS hydraulic faults. Bench bleed and follow Mazda procedure.
OEM numbers
Checked non-ABS 1990-1997 service example NA01-43-40ZR-00. Catalogs separate ABS/non-ABS masters and 2001-2005 applicationsbooster examples include NA01-43-800/NA75-43-800 and NB NAY1-43-800 families.Supersession
No universal master/booster chain is asserted. ABS configuration and year/brake package determine the correct assembly and pushrod/line arrangement.
Fitment
Safety-critical: identify ABS and brake package, then separate master internal bypass/leak, booster/vacuum, proportioning, caliper, hose and ABS hydraulic faults. Bench bleed and follow Mazda procedure.
Aftermarket options
OEM and aftermarket master cylinders plus used booster assemblies exist. A booster/master combination listing is not proof that both parts match every car.
Before you buy
Brakes are safety-critical. Confirm ABS, year and brake package before ordering. Diagnose the master, booster/vacuum, proportioning/ABS and wheel-end hydraulics separately; use a qualified professional when needed.
Research and fitment sources
Supersede reviewed 6 unique research sources for this guide. 3 also appear above as a seller or official action and are not repeated here; 3 additional citations follow.
Research last verified .