1986-92 13B Rebuild PartsTo 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.