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Internal Engine Parts

All parts prices are subject to change. Mazda in particular has a nasty habit of changing prices without warning. These prices were correct at the time of listing and we update them as soon as we are aware of a change, so they should be pretty close but there are no guarantees. Main bearings, for example, went up 63% recently.
Displaying products 31 - 56 of 56 results
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Side Seal Springs (74-85)
1.0mm Side Seal Spring (74-85)
List Price: $2.63
Your Price: $2.56
You Save: $0.07 (3 %)
1.0mm Side Seal Spring (74-85)
These are the springs for the thicker 1.0mm thick side seals used from 1974 through 1985, both 12A and 13B applications. Sold individually. Order 12 for a 12A or 13B 2-rotor engine.
Front Main Seal
Front Main Seal (pre-93)
List Price: $5.85
Your Price: $5.45
You Save: $0.40 (7 %)
Front Main Seal (pre-93)
Front Main Seal. Installs in front cover to prevent oil from leaking past the eccentric shaft. Always replace. One required per engine. This is technically the 2nd gen FC and earlier part, but they work fine for 3rd gen FDs (13B-REW) as well.
Front Main Seal
Front Main Seal (93+)
List Price: $11.13
Your Price: $9.95
You Save: $1.18 (11 %)
Front Main Seal (93+)
Rear Main Seal (all, excpet RENESIS)
Rear Main Seal (all, excpet RENESIS)
List Price: $14.16
Your Price: $10.79
You Save: $3.37 (24 %)
Rear Main Seal (all, excpet RENESIS)
Rear Main Seal for all RX-7s. Replace any time you remove flywheel.
Corner Seal w/Plug (86-95)
Corner Seal w/Plug (86-95)
List Price: $17.03
Your Price: $9.42
You Save: $7.61 (45 %)
Corner Seal w/Plug (86-95)
This is the corner seal for all 1986 through 1995 rotary engines with 2mm apex seals. Includes rubber plug for the center, which helps cold-start compression. Sold individually. Order 12 for a 2-rotor 13B engine or 18 for a 3-rotor 20B engine.
FD-Style Corner Seal Springs
FD-Style Corner Seal Spring (74-95)- Sold Individually
List Price: $7.88
Your Price: $3.91
You Save: $3.97 (50 %)
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FD-Style Corner Seal Spring (74-95)- Sold Individually
Oil Control Ring Spring Set - 13B (74-95)
Oil Control Ring Spring Set - 12A/13B (1974-2012)
List Price: $138.98
Your Price: $70.96
You Save: $68.02 (49 %)
Oil Control Ring Spring Set - 12A/13B (1974-2012)
Oil Control Ring O-Ring Set - 12A/13B (74-95)
Oil Control Ring O-Ring Set - 12A/13B (74-2014)
List Price: $180.60
Your Price: $119.88
You Save: $60.72 (34 %)
Oil Control Ring O-Ring Set - 12A/13B (74-2014)
Oil Control Ring Spring Set - 13B (74-95)
Oil Control Ring Spring Set - 20B
List Price: $80.96
Your Price: $66.52
You Save: $14.44 (18 %)
Oil Control Ring Spring Set - 20B
Oil Control Ring O-Ring Set - 12A/13B (74-95)
Oil Control Ring O-Ring Set - 20B
List Price: $207.65
Your Price: $127.82
You Save: $79.83 (38 %)
Oil Control Ring O-Ring Set - 20B
unavailable
Viton O-Ring for Xcessive FD Aluminum Oil Pan
Your Price: $18.00
Viton O-Ring for Xcessive FD Aluminum Oil Pan
Upgraded Viton O-ring for Xcessive FD Aluminum Oil Pan. Does not get hard like the OEM o-ring previously provided in the kit.
Mechanical OMP Kit & DVD
Mechanical OMP Kit & DVD
Your Price: $24.95
Mechanical OMP Kit & DVD
Overhaul your mechanical Oil Metering Pump (pre-89) quickly and easily with the overhaul kit and instructional DVD.
Mazda 2mm 13B & 20B apex seal spring (long)
Mazda 3mm GSL-SE 13B Apex Seal Spring
List Price: $14.16
Your Price: $10.79
You Save: $3.37 (24 %)
Mazda 3mm GSL-SE 13B Apex Seal Spring
Fits 84/85 GSL-SE 13B and earlier 13Bs.
Oil Control Ring Tray
Oil Control Ring Tray (one inner and one outer)
List Price: $142.61
Your Price: $98.95
You Save: $43.66 (31 %)
Oil Control Ring Tray (one inner and one outer)
Oil Galley Plug kit
List Price: $16.95
Your Price: $12.95
You Save: $4.00 (24 %)
Oil Galley Plug kit
Oil Galley Plug kit includes 2 large and 1 small replacement oil galley plugs.
Oil Pressure Regulator, modified
Your Price: $35.00
Oil Pressure Regulator, modified
Stock 1978-91 rear oil pressure regulator modified for higher pressure. We provide a regulator and modify it to your requirements from 70psi to 95psi.
Tension bolt washer kit of 20pcs.for 10mm bolts
Your Price: $19.80
Tension bolt washer kit of 20pcs.for 10mm bolts
Tension bolt washer kit of 20pcs. All but 20B large bolts
unavailable
13B-MSP(RX8) heavy duty internal seal & spring rebuild kit
Your Price:
13B-MSP(RX8) heavy duty internal seal & spring rebuild kit
Complete internal heavy duty seal and spring rebuild kit for the '04-08 RX8, MSP engine. Our famous HD water seals and OEM seals, springs and oil o rings.
Shim, allows S5 &up to use RX8 gasket
List Price: $15.95
Your Price: 8.95
Shim, allows S5 &up to use RX8 gasket
Shim to allow use of the metal RX8 front cover gasket. Package of 3pcs.
Oil Pan Gasket- RX8 (2004-'08)
List Price: $36.22
Your Price: NEW Product!
Oil Pan Gasket- RX8 (2004-'08)
Our Viton pan gasket is highly resistant to heat and oil. It should be the last pan gasket you need to buy for your 2004-'08 MSP engine!
HD Water Seal Kit-RX8 04-2012
Your Price: $124.95
HD Water Seal Kit-RX8 04-2012
HD Water seal Kit for the 2004-2012 RX8. This kit includes our special o rings for the Inner/Outer water seals, Dowel pins, Oil pedestal,rear stationary gear, oil metering pump and tension bolt washers.
HD Water Seals, FD/REW/S5/RE
Your Price: $124.95
HD Water Seals, FD/REW/S5/RE
HD water seals for the REW. Tension bolt washers included.
Oil Regulator Tool
List Price: $131.90
Your Price: $99.95
You Save: $31.95 (24 %)
Oil Regulator Tool
***HOLIDAY SPECIAL*** Oil Regulator test tool for safely and accurately modifying and testing of the rear oil pressure regulator for all years.
unavailable
Stationary Gear - Rear- Hardened/Grooved RX8
List Price: $240.02
Your Price: $182.95
You Save: $57.07 (24 %)
Stationary Gear - Rear- Hardened/Grooved RX8
Stationary Gear, Rear - RX8. Hardened/windowed. Great upgrade as it drops in 1974 and up 13B for engines without grooved gears. A new bearing is installed. For non-RX8 applications a slight mod necessary.
unavailable
Stationary Gear - Front- Hardened/Grooved RX8
List Price: $184.81
Your Price: $139.95
You Save: $44.86 (24 %)
Stationary Gear - Front- Hardened/Grooved RX8
Stationary Gear, Front - RX8. Hardened/windowed. Great upgrade as it drops in 1974 and up 13B for engines without grooved gears. A new bearing is installed.
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