EMPI

EMPI Billet Aluminum Alternator Pulley, Polished Outer Half, 12V VW | EMPI #33-1040-0

Name: EMPI Billet Aluminum Alternator Pulley, Polished Outer Half, 12V VW | EMPI #33-1040-0
Brand: EMPI
SKU: 33-1040-0
Price: 37.99 USD
Availability: InStock

In stock

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Fits: Beetle, Bus, Karmann Ghia, Type 1

Usually ships in 1–2 business days

$37.99

Product details

Vendor EMPI
SKU 33-1040-0

Not sure it fits? Call the shop: (657) 438-7002.

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Upgrade your charging system's appearance with the EMPI Billet Aluminum Alternator Pulley Outer Half. CNC-machined from polished billet aluminum, this outer pulley half replaces the stock stamped steel piece for a clean, custom look in your air-cooled VW engine bay.

CNC-machined 6061 billet aluminum — polished finish
Outer half only — pairs with stock or aftermarket steel inner half
Outer diameter: approx. 4.25 inches (108 mm)
Close to factory 1:1.64 alternator-to-crank ratio with standard 7" crank pulley
Belt tension adjusted via shims between pulley halves
Fits 12-volt alternator and generator shafts

Fits: Air-cooled VW engines with 12V alternator or generator — Beetle, Karmann Ghia, Bus, Dune Buggy, Sand Rail, and other Type 1-based builds.

The Tech Bench Everything we know about doing the work, in one place — written and filmed on our own bench in Orange, California, with the same parts we sell you.

Pick a bench below. Written install guides, free decoder tools, install videos, and the fitment lookup — each one lives on its own page so you're not scrolling past nine systems to find the one you're working on.

55Guides in the library

4Free decoder tools

9Install videos

1Beetle at a time

Four benches

Pick the one that matches the job in front of you

01

Install Guides

The full written library — procedures, torque specs, and the order of operations that keeps you from taking something apart twice. Organised by system.

55 guides8 systems5 published Open the library 02

Decoders & Lookup

Chassis number, Beetle M-code, Bus M-code. Free tools for pinning down exactly what you have before you spend money on a part that doesn't fit it.

Chassis No.M-PlateFree Open the decoders 03

Watch & Learn

Install videos and build footage from the shop floor. Watch the part go in — then grab the kit from the same page.

InstallsBuildsYouTube Watch the videos 04

Fitment Lookup

Year and model in, the parts that actually fit out. The fastest way from "I think it's a '67" to the right part number in your cart.

Year / ModelAll parts Open the lookup

Latest from the bench

5Most recently published

GEAR Free tool New

Gear Ratio Calculator

Type 1 and Bus transaxles. Ring and pinion, gear ratios, tire height and shift rpm in — road speed, rpm drop on every shift, and cruise rpm out.

Type 1 · BusOpen the calculator CH01 Guide 01 Best seller

Snap-Lock Delrin Shift Bushing

The 20-minute fix that turns a sloppy shifter crisp — and the whole shift-linkage explained.

#CH01Read the guide BY01 Guide 27

Big Washburn Windows

Large engine-bay access panels for dual-carb and big-engine builds — reach the carbs without pulling the motor.

#BY01Read the guide PMO Reference

PMO Carburetors: Triple-Throat Induction

The complete reference on PMO triple-throat carburetors for air-cooled Porsche — sizing, jetting, and setup.

PMORead the guide CH64 Chassis

Flat Out Custom Shortened Pan Halves

Building a shortened dune buggy or kit car? Engineered pan halves put a straight floor under it without sectioning a stock VW pan.

#CH64Read the guide

See all 55 guides

From the shop blog

3Shorter reads from the shop floor

Not every write-up needs a full install guide. The thinking behind a modification, the cars that come through the door, and the jobs we take photos of as we go get posted over on the shop blog.

Blog

Big Washburn Carb Windows: What They Are and Why We Cut Them

The reasoning behind cutting the rear inner fenders open, before you read the full install guide.

Read the post Blog

Tunnel Access Plates: Why We Cut a Hole in Your Pan on Purpose

Why the center tunnel gets an access plate, and what it saves you the next time the linkage needs attention.

Read the post Blog

Some Hot VWs That Came Through the Shop This Spring

A look at the cars on the lifts in Orange, California, and the work that went into them.

Read the post

Read the shop blog

Can't find your job here?

Call the shop. If the guide isn't written yet, we'll walk you through it on the phone — fitment, torque, sequence, what to buy and what to skip.

(657) 438-7002

Shop line — parts, fitment and technical questions. Orange, California.

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Orders are typically processed within 24–48 hours before they ship. Once your order ships, you'll get an email with tracking information.

Shipping outside the U.S.? Contact us at (657) 438-7002 before you order and we'll confirm rates and options for your destination.

EMPI Billet Aluminum Alternator Pulley, Polished Outer Half, 12V VW | EMPI #33-1040-0

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