NA/NBSeller listing
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View listing at Redlineautoparts; opens in a new tabMiata · Buyer's guide
NA/NB Miata Power Steering Racks, Pumps, Hoses and Leak Diagnosis
US-market 1990-1993 NA6, 1994-1997 NA8, 1999-2000 NB1, and 2001-2005 NB2. Separate manual and power racks; NB hose/pump/rack applications have year, production-date, turbo and transmission distinctions.
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 Leroyengineering; opens in a new tabNA/NBSeller listing
Listed priceSee seller for current price
View listing at Atkinsrotary; opens in a new tabNA/NBSeller listing
Listed price$28.15
View listing at Mazdastuff; opens in a new tabNA/NBSeller listing
Listed priceSee seller for current price
View listing at Mecatechnic; opens in a new tabNA/NBSeller listing
Listed priceSee seller for current price
View listing at Yoshiparts; opens in a new tabWhat you need to know
Diagnose leak location before buying: rack seals/boots, pump, pressure hose, return pipe and reservoir hoses are separate. Identify manual versus power rack, NA versus NB, and NB year/date/turbo/transmission branch. Depowering is outside this stock-repair page.
OEM numbers
NB collision data lists rack NC10-32-110R-0H for 1999-2003, turbo rack NE45-32-110A, and non-turbo NC10-32-110J for 2004pump NC10-32-600R-0B for 1999-2003and pressure-hose splits including NC10-32-490J, N066-32-490 and later N115-32-490. Confirm VIN/date/application.Supersession
No NA-to-NB or manual-to-power rack supersession is claimed. Part-number date splits are fitment evidence, not permission to collapse all later hoses or pumps into one part.
Fitment
Diagnose leak location before buying: rack seals/boots, pump, pressure hose, return pipe and reservoir hoses are separate. Identify manual versus power rack, NA versus NB, and NB year/date/turbo/transmission branch. Depowering is outside this stock-repair page.
Aftermarket options
Exact used OEM rack assemblies, OEM seal kits, genuine pump seal kits and exact replacement hoses are available in uneven coverage. Rebuildability depends on hard-part condition; flushing and correct fluid/service procedure matter.
Before you buy
Find the leak before buying a rack or pump. NB part applications change by year, production date, turbo status and sometimes transmission. The checked seller set is NB-heavy because clean NA complete-rack/pump paths were not forced.
Research and fitment sources
Supersede reviewed 11 unique research sources for this guide. 6 also appear above as a seller or official action and are not repeated here; 5 additional citations follow.
Research last verified .