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1986-92 13B Rebuild Parts

To order any of these parts, go back to the main motorsports webpage and login. Click on the Order More Item icon under the QUICK ORDER section on the top right of the Motorsports webpage (while logged in). You will see several blank lines at a time, to type in your part numbers. Click the SUBMIT button at the bottom of the page. This will add the items and return to your cart. You can repeat the process if you have more items to add.

The following parts are recommended for all 1986-92 13B rebuilds..

The parts in the top blue section may be ordered as one part number K-8688-3B-STK. Parts need to be ordered individually if ordering ceramic apex seals. We do not sell 2mm carbon apex seals.

DESCRIPTION PART NUMBER QTY NOTES
APEX SEAL - STOCK N351-11-C00C 6 Click here for optional Apex Seals & Springs
APEX SPRING - INNER N326-11-C04A 6  
APEX SPRING - OUTER N326-11-C06C 6  
CORNER SEAL N326-11-C20A 12 Includes rubber plug (N326-11-C22A)
CORNER SEAL SPRING NF01-11-C24 12 Washer type from 3rd gen RX-7
SIDE SEAL N3Y1-11-C11 12  
SIDE SEAL SPRING N326-11-C17 12  
OIL SEAL SET (STEEL) N3Z1-11-S10A 4 1 set is 1 inner and 1 outer. Needs 4 sets per engine.
O-RING - OIL SEAL OUTER 0820-11-341 4 Green
O-RING - OIL SEAL INNER 1202-11-343 4 Green - do not use 8341-11-343 black o-rings.
SPRING - OIL SEAL FRONT INNER N225-11-351 2  
SPRING - OIL SEAL REAR INNER N225-11-361 2  
SPRING - OIL SEAL FRONT OUTER 4352-11-353 2 Competition part. Heavy-duty spring provides increased pressure
SPRING - OIL SEAL REAR OUTER 4352-11-363 2 Competition part. Heavy-duty spring provides increased pressure
ENGINE GASKET SET 8DF1-10-271A 1 86-88 GASKET SET If intake and exhaust gaskets don't matter, then this is the set to use, even for 89-92. 89-92 N/A and all 87-92 Turbo kits are no longer available.
MAIN SEAL, FRONT 0820-10-605 1  
MAIN SEAL, REAR 1668-10-556A 1  
PILOT BEARING N326-11-D03 1  
PILOT BEARING SEAL 1881-11-404A 1  
       
OPTIONAL INSTALLS
DESCRIPTION PART NUMBER QTY NOTES
APEX SEAL - CERAMIC 1 PC 2mm 0000-01-9103 2 Comes with precut dual apex seal springs. 3 seals per box.
APEX SEAL - CERAMIC 2PC 2mm 0000-01-9113 2 Comes with precut dual apex seal springs. 3 seals per box.
APEX SEAL - CERAMIC 1PC 3mm 0000-01-9105 2 Comes with precut dual apex seal springs. 3 seals per box.
APEX SEAL - CERAMIC 2PC 3mm 0000-01-9115 2 Comes with precut dual apex seal springs. 3 seals per box.
We do not carry 2mm carbon apex seals    
ROTOR BEARINGS - STOCK N3A1-11-B11 2 3.0mm (-0.005 to -0.010)
  N3A2-11-B11 2 3.0mm (0.00 to -0.005)
  N3A3-11-B11 2 3.0mm (+0.005 to 0.000)
ROTOR BEARINGS - COMPETITION 4801-11-111 2 Competition bearings have 0.01 inch deeper oil groove and provide 0.0005 inch more clearance than stock bearings. Thinner overlay material improves bearing service life.

 

      
MAIN BEARINGS - STOCK 0820-10-502B 2  
MAIN BEARING - COMPETITION REAR 4801-10-502 1 Use in place of stock rear bearing. 3-window type. Recommended for any engine used at 8000 rpm and above. Increases oil flow to the inside of eccentric shaft and to rotors.
       
ECCENTRIC SHAFT N326-11-D00C 1 Stock
COUNTERWEIGHT - REAR N351-11-521 1 From A/T for use with lightened flywheels
       
ROTOR HOUSINGS      
Front N326-10-B10   86-88 N/T
Rear N326-10-B50C   86-88 N/T
Front N332-10-B10   87-88 TURBO
Rear N332-10-B50B   87-88 TURBO
Front N350-10-B10A   89-92 N/T
Rear N350-10-B50A   89-92 N/T
Front N318-10-B10A   89-91 TURBO
Rear N318-10-B50C   89-91 TURBO
       
 Search online catalog for intermediate housings.