Skip to product information
12_a1fb607b-6c18-424a-86cd-444c029a024c - Northline Parts

Alternator Pulley AL166836 for John Deere 6120 6320 6420 7220 7320 7420 7520

SKU: NLT2T00860
$65.39 In Stock
$65.39
Sale price  $65.39 Regular price 
Ships for free in 2–4 business days.
Alternator pulley AL166836 for a broad range of John Deere tractors and equipment, including 6120, 6320, 6420, 7220, 7320, 7420 and 7520.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
John Deere 6120, 6320, 6420, 7220, 7320, 7420, 7520 and many additional Deere applications using AL166836

Product Overview

The alternator pulley transfers belt drive from the engine to the alternator. A damaged, worn or loose pulley can contribute to belt noise, charging problems, belt tracking issues or abnormal alternator speed. John Deere lists AL166836 across many 6000- and 7000-series machines, so verify the alternator and pulley configuration in addition to the tractor model.

Key Features & Performance

  • Direct AL166836 part-number reference
  • Supports proper belt drive to the alternator
  • Broad Deere application coverage makes part-number verification especially important

Technical Specifications

  • Part Type: Alternator pulley

Replaces / Reference Part Numbers

  • AL166836

Frequently Asked Questions

  • How do I verify compatibility? Compare your existing component with AL166836 and confirm the machine/engine model and serial-number range before ordering.
  • Is this a genuine OEM part? This listing is for a replacement component and is not represented as a genuine John Deere part unless the product packaging or listing explicitly states otherwise.

Fitment can vary by serial number, engine build and equipment configuration. Verify the original part number and application before purchase.

Customers also purchased