R Theory NA/NB Miata Billet Alternator & Water Pump Pulley Set (1.8L, 1994-2005)

Billet aluminum alternator and water pump pulleys that take the place of the factory steel pulleys and take weight off the front of the engine. R Theory Motorsports CNC machines them from 6061 aluminum, anodizes them and laser engraves the markings. The kit option adds R Theory's matching billet power steering pulley bezel.

R Theory's weights: water pump pulley 9.20 oz (260 g) against 15 oz (425 g) stock; alternator pulley 2.30 oz (65 g) against 5.35 oz (151 g) stock.

Fits

• NA and NB Miata with the 1.8L engine, 1994-2005
• 1.6L cars only when a 1.8L crank pulley and belt are fitted at the same time
• The alternator pulley differs between NA and NB alternators: pick the one that matches the alternator in the car. An NA with an NB engine swap most likely still has the NA alternator.

In the box

• 1 alternator pulley
• 1 water pump pulley
• 3 stainless steel water pump bolts
• Power steering pulley bezel with stainless bolts (bezel kit only)

Import tariffs covered: the price includes the US import tariff, so there is nothing extra to pay on delivery.

Returns

• Returns are accepted within 30 days of delivery on new, uninstalled parts in their original packaging, less a 20% restocking fee.
• Return shipping is paid by the buyer, unless the return is due to our error, and the original shipping charge is not refunded.
• Installed or modified parts, electrical parts and made-to-order items cannot be returned.
• A part that arrives damaged, faulty or wrong: contact us within 7 days of delivery with photos of the part and the box.
• Contact us to start a return before sending anything back; returns ship to our shop, and we send the address.