Early Rotary & 1979-85 Mazda RX-7 : Mazda OEM Parts

For over 45 years we've been gathering an sizeable collection of various Mazda OEM components and parts. Many of the parts in this section are new hard-to-find parts, superseded parts, left-over from a R&D project, etc...and we've gathered them up and listed them in this section of the website. Many of these parts can be used on several different vehicle applications, model years, models, etc....and we don't have the resources to list all the possible uses for each part. Many parts are limited to stock on-hand and feature special pricing, no backorders! We've included the Mazda OEM part number and a brief description and photograph of each part, if you have a question regarding a specific part we encourage you to search the web for specific application information, or contact us prior to placing your order.

20B Rear Counter Weight

20B Rear Counter Weight :: 20B

Mazda OEM 20B rear counterweight (N3Y9-11-52X).

Part Number: N3Y9-11-52X
Our Price $145.00 Add to Cart

Oil Seal Rear Stationary Gear

Oil Seal Rear Stationary Gear :: Rotary all

Mazda OEM rear stationary oil seal 1668-10-556A.  

Part Number: 1668-10-556A
Our Price $11.87 Add to Cart

Pilot Bearing - Ecentric Shaft

Pilot Bearing - Ecentric Shaft :: 1974-2011 Rotary - All

Ecentric Shaft Pilot Bearing - Input shaft bearing for all 1974-2011 rotary engines. Use with Bearing Seal 1881-11-404.

Part Number: N326-11-D03
Our Price $10.92 Add to Cart

Oil Seal - Pilot Bearing

Oil Seal - Pilot Bearing :: 1974-2011 Rotary - All

Pilot Bearing Oil Seal for use with the ecentric shaft pilot bearing - N326-11-D03. For use on all 1974-2011 rotary engines.

Part Number: 1881-11-404
Our Price $3.23 Add to Cart

O-Ring Kit

O-Ring Kit :: 71-85 12A

Racing Beat offers the Mazda Part Number 1757-23-040B - complete O-Ring Kit - for the 79-85 12A rotay engine, at a very competitive price. These kits, as delivered, contain the Mazda OEM components - OEM components are absolutely critical for a successful...

Part Number: 1757-23-040B
Our Price $198.00 Add to Cart


Road Race Header 79-85
RX-7 12A

Racing Beat's Road Race Header is the first step in building a serious racing exhaust system. The engine-to-pipe ...

Add to Cart more info

Our Price: $295.00

Front Engine Mount
12A RX-7

Racing Beat's Front Engine Mount is a popular addition to any engine compartment! This 304-stainless steel, laser-...

Add to Cart more info

Our Price: $120.00

Engine Torque Brace
79-85 RX-7

The Racing Beat-designed Engine Torque Brace for the 1979-85 RX-7 substantially reduces or eliminates the shuddering ...

Add to Cart more info

Our Price: $90.00

Go to Racing Beat Home Page
Select: Go to Shopping Cart