Home > Billlet Parts

Using our CNC Milling and CNC lathe, we create custom parts from billet alloy, steel, stainless, titanium and more for all your rotary applications.
We specialist in RX-8s and using billet, we’ve created all the adapters required to convert your Renesis to an FD RX-7 13B or 20B Cosmo engines.

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13B Rotary BILLET Centre Plate 13B Rotary BILLET Centre Plate

Lightweight billet alloy CNC design.
Compatible with both 13B and 20B engines.

Our Price: $3,950.00
13B Rotary BILLET Rear Plate 13B Rotary BILLET Rear Plate

Lightweight billet alloy CNC design.

Our Price: $2,950.00
13B Rotary BILLET Front Plate 13B Rotary BILLET Front Plate

Lightweight billet alloy CNC design.
Compatible with both 13B and 20B engines.

Our Price: $2,950.00
Mazda billet bellhousing Mazda billet bellhousing

Our new Promaz billet steel bellhousing to suit Mazda rotary.
For the serious racers, no need for ugly bulky scattershields.

Our Price: $2,950.00
Sump - 20B - RX-3/RX-4 Sump - 20B - RX-3/RX-4

Billet alloy sump for Mazda 20B engine.
Suits RX-3 or RX-4.

Our Price: $1,695.00
RX-8 20B sump RX-8 20B sump

Billet alloy sump for your RX-8 20B conversion.

Our Price: $1,650.00
Engine crossmember - Mazda 626 Engine crossmember - Mazda 626

Lower front engine crossmember and brace for your rotary conversion in a Mazda 626.
Brace is CNC billet alloy.

Please contact us before ordering.

Our Price: $1,295.00
Sump - 13B - RX-3/RX-4 Sump - 13B - RX-3/RX-4

Billet alloy sump for Mazda 13B engine.
Suits RX-3 and RX-4, with O-ring groove.

Our Price: $1,250.00
Sump - 13B Sump - 13B

Billet alloy sump for Mazda 13B engine.
Suits R100, RX-2, 1200, 1000 Ute (reversed) with O-ring groove.

Our Price: $1,195.00
Water Pump Water Pump

Water pump replacement for 12A, 13B and 20B engines. Reduced length over standard pump by 40mm. Increases room for radiator and fan placement.

Our Price: $660.00
Surge tank Surge tank

NEW for 2020 is our Billetpro three pump surge tank. The updated design simplifies fuel lines. These are ideal for Walboro fuel pumps.

Our Price: $645.00
Throttle body flange with fuel rail Throttle body flange with fuel rail

Suits FD, 13B and 20B Cosmo engines.

Our Price: $595.00
RX-8 Air conditioning adapter RX-8 Air conditioning adapter

Adapter for Air Conditioning when converting your RX-8 to an FD 13B, Cosmo 13B, or 20B turbo engine.

Our Price: $595.00
Billet steel flywheel Billet steel flywheel

Suits turbo RX-7 ring gear.

Select
clutch size.

Our Price: $395.00
Engine brace - Mazda 1200/1300/R100 Engine brace - Mazda 1200/1300/R100

Lower front engine brace for Mazda 1200, 1300 or R100 models.
Increases rigidity and strength to chassis, espeically when powering up your old Mazda.

Our Price: $395.00
Engine brace RX-3 Engine brace RX-3

Lower front engine brace, CNC billet alloy, direct bolt up.

Our Price: $330.00
Engine brace RX-3 recessed 20mm Engine brace RX-3 recessed 20mm

Lower front engine brace, CNC billet alloy, direct bolt up. Moves your engine back 20mm to increase front end clearance.

Our Price: $330.00
Alternator side mount relocation kit Alternator side mount relocation kit

This Kit will relocate your Alternator from the top of your engine to the side, will suit 12A/13B/20B.

Please contact us before ordering.

Our Price: $330.00
Engine brace - Universal Engine brace - Universal

Lower front engine brace for your rotary conversion. Comes with built in mounts.

Our Price: $330.00
Electric water pump adapter Electric water pump adapter

Available in alloy and black.
Has built in -16 fittings.

Our Price: $295.00
Gearbox mount - RX-7 Gearbox mount - RX-7

Gearbox mount for FC turbo RX-7
CNC billet alloy.
Bush included.

Our Price: $295.00
Engine brace - RX-2 Engine brace - RX-2

Lower front engine brace, CNC billet alloy, direct bolt up. Available for both Mazda RX-2 and RX-3.

Our Price: $295.00
Strut tops - RX-3 Strut tops - RX-3

Pair of billet RX-3 strut top covers.
Crafted from CNC Billet alloy, dress up your RX-3 engine bay.

Our Price: $295.00
Weld wheel centre cap Weld wheel centre cap

Center cap and spacer for your Weld wheel to clear caliper.
CNC billet alloy. Two caps in kit.

Our Price: $250.00
Coil mounting plate Coil mounting plate

Holds 4 coils.

Our Price: $220.00
Air pump removal kit Air pump removal kit

Billetpro FD RX-7 air pump removal kit. Comes with belt to suit.

Our Price: $195.00
RX-8 Oil Filter Adapter RX-8 Oil Filter Adapter

Oil filter adapter for when converting your RX-8 to a 13B, Cosmo and 20B engine. Currently out of stock allow 6 weeks approx

Our Price: $195.00
Injector block off -13B Injector block off -13B

Block off plate for primary injectors on FC RX-7.
Made from billet alloy.

Please contact us before ordering.

Our Price: $195.00
Crank pulley Crank pulley

Front engine crank pulley for twin belts.
Available in alloy and black.
Note: Red and blue colours are not being produced anymore.

Our Price: $165.00
Alternator pulley with twin belts Alternator pulley with twin belts

Dress up your engine with this rotary inspired pulley.
Available in blue, black, alloy and red.
Comes with twin belts.

Our Price: $120.00