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V-Ribbed Engine Belt 4943125 / 4946198 for Cummins QSB5.9 - Northline Parts product image

V-Ribbed Engine Belt 4943125 / 4946198 for Cummins QSB5.9

SKU: NLT2T01165
$33.09 In Stock
$33.09
Sale price  $33.09 Regular price 
Ships for free in 2–4 business days.
Replace a frayed or squealing accessory belt on the appropriate Cummins QSB5.9 engine with a belt referencing 4943125 and 4946198. Correct rib count and length matter more than the general engine family name.
Estimated delivery between
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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
  • Cummins QSB5.9 CM850 engine configurations listed by supplier
  • engine serial number and pulley layout determine fit.

Match installed belt length, number of ribs and accessory routing; QSB5.9 engines use different drive layouts.

Product Overview

A worn serpentine belt can slip on the pulleys and interrupt accessory drive. Inspect the tensioner, pulley bearings and alignment during replacement; a new belt will not cure a seized accessory or misaligned pulley.

Key Features & Performance

  • A worn serpentine belt can slip on the pulleys and interrupt accessory drive.
  • Match installed belt length, number of ribs and accessory routing; QSB5.9 engines use different drive layouts.

OE / Reference Numbers

  • 4943125
  • 4946198 (confirm interchange by engine arrangement)

Common Reasons for Replacement

Inspect the tensioner, pulley bearings and alignment during replacement; a new belt will not cure a seized accessory or misaligned pulley.

Frequently Asked Questions

Is this an OEM part? This listing is for a replacement part, not a genuine manufacturer-branded item unless expressly stated otherwise.

How do I check fitment? Match installed belt length, number of ribs and accessory routing; QSB5.9 engines use different drive layouts.

Part Summary

keywords: V-Ribbed Engine Belt 4943125 / 4946198 for Cummins QSB5.9, 4943125, 4946198 (confirm interchange by engine arrangement), Cummins QSB5.9 CM850 engine configurations listed by supplier, engine serial number and pulley layout determine fit.

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

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