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Cummins ISL-G 4969770 / 4969770NX / 4969770RX CNG Three Way Catalyst

Global Emission Systems

$1,960.00

FREE Ground Shipping within the Continental USA
Expedited options available at checkout

FREE Ground Shipping within the Continental USA & Canada
Expedited options available at checkout

Case Lot Discounts Available

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SKU:
GESI-601-2
Condition:
New
Availability:
In Stock - We sell filters locally that could affect stock – You will be contacted immediately if there are any availability issues
Features:
Proudly Designed and Built in North America - No Core Required – Same fit and Performance as original equipment - New Not Reconditioned
California Orders:
Features Proudly Made in America – EPA Compliant – No Core Required – Same fit and Performance as original equipment California Orders NOT for sale or shipment to California

Have questions? Call an expert at 760-355-8900, 9am - 9pm EST

Product Overview

Cummins 4969771 4969770 ISL-G DOC Filter

Interchange References: 4969771, 4969770, 4969771NX, 4969771RX, 4969770NX, 4969770RX, Q621799, GESi-601, Dinex 85045, Roadwarrior C0101-ID

Restore emissions performance with this premium aftermarket Cummins 4969771 / 4969770 ISL-G DOC Filter. This direct-fit Diesel Oxidation Catalyst is engineered for select Cummins ISL-G EPA07 emissions applications and replaces OEM part numbers 4969771, 4969771NX, 4969771RX, 4969770, 4969770NX, 4969770RX, and Q621799. Manufactured by Global Emission Systems in North America, this stainless steel DOC carries zero core charge, includes the listed installation gaskets and clamps where applicable, is backed by a 3-year unlimited mileage warranty, and ships with free two-day ground shipping to the continental United States and Canada.

✓ Free 2-Day Ground Shipping
✓ Hardware Included
✓ 3-Year Warranty
✓ Made in North America

Cummins 4969771 4969770 DOC Cross Reference Table

Instant Fitment Verification: This Cummins ISL-G Diesel Oxidation Catalyst replaces components stamped with housing part numbers, casting codes, or manufacturing tags matching any of the interchangeable OEM or aftermarket references listed below:

Manufacturer Cross Reference Part Numbers
Cummins OEM 4969771, 4969770, 4969771NX, 4969771RX, 4969770NX, 4969770RX, Q621799
Global Emission Systems / GESi GESi-601
Dinex 85045
Roadwarrior C0101-ID

Cummins ISL-G DOC Fitment Guide

This Cummins DOC is designed for select Cummins ISL-G natural gas engine applications using EPA07 emissions systems. Always verify exact compatibility using your vehicle's VIN number or original stamped OEM part number on the unit before placing an order.

  • Engine Fitment: Cummins ISL-G
  • Emissions Standard: EPA07
  • Common Applications: Select transit bus, refuse, vocational, and regional delivery applications using the matching Cummins ISL-G DOC assembly.
  • Compatible OEM Numbers: 4969771, 4969770, 4969771NX, 4969771RX, 4969770NX, 4969770RX, Q621799
  • Aftermarket Cross References: GESi-601, Dinex 85045, Roadwarrior C0101-ID

Choose Your Kit Configuration

Select the setup from the product options above that best fits your shop's needs:

  • Full Kit (Best Value): Includes (1) brand-new DOC, (2) 2871452 OEM-quality flange gaskets, and (2) 2871862 heavy-duty clamps.
  • DOC Only: Includes one (1) DOC only. Service gaskets and mounting clamps are not included.

Cummins 4969771 4969770 DOC Technical Specifications

Measurement Parameter Specification Value
Product Type Cummins Diesel Oxidation Catalyst (DOC)
Primary OEM Part Numbers 4969771, 4969770
Additional OEM Cross References 4969771NX, 4969771RX, 4969770NX, 4969770RX, Q621799
Manufacturer Global Emission Systems
Manufacturer Part Number GESi-601
Engine Fitment Cummins ISL-G
Material Base Construction Premium Stainless Steel
Net Assembly Weight 34.84 lbs (15.82 kg)
Overall Length 7.93 inches (201.42 mm)
Outer Body Diameter / Width 11.67 inches (296.50 mm)
Component Height Dimension 11.67 inches (296.50 mm)
Exhaust Emissions Norm EPA07 Compliant

Cummins 4969771 4969770 DOC Key Features

  • Direct-Fit Cummins ISL-G DOC: Replaces Cummins DOC part numbers 4969771, 4969770, 4969771NX, 4969771RX, 4969770NX, 4969770RX, and Q621799.
  • Made in North America: Manufactured by Global Emission Systems for heavy-duty emissions applications.
  • EPA07 Compliant: Designed for EPA07 Cummins ISL-G emissions systems.
  • No Core Charge: Brand-new component with no dirty core return, core tracking paperwork, or return freight expense.
  • Stainless Steel Construction: Built with stainless steel material for long-term durability in heavy-duty exhaust systems.
  • Available Full Kit: Full Kit option includes (2) 2871452 gaskets and (2) 2871862 clamps.
  • Fast Free Shipping: Free two-day ground shipping to the continental United States and Canada.
  • Warranty Protection: Backed by a 3-year unlimited mileage warranty.

Signs Your Cummins DOC Needs Replacement

  • Frequent exhaust system regeneration issues or incomplete regeneration cycles.
  • Diagnostic trouble codes related to catalyst efficiency, exhaust temperature performance, or emissions system performance.
  • Reduced engine performance caused by exhaust aftertreatment restriction or poor catalyst function.
  • Soot loading concerns in the downstream DPF caused by poor upstream DOC performance.

Multi-Warehouse Dispatch

Orders ship from regional fulfillment hubs to help provide fast delivery to your repair shop or location. Free two-day ground shipping is available to the continental United States and Canada.

Frequently Asked Questions

What Cummins DOC part numbers does this unit replace?

This DOC replaces Cummins part numbers 4969771, 4969770, 4969771NX, 4969771RX, 4969770NX, 4969770RX, and Q621799.

What engine does this Cummins DOC fit?

Based on the supplied fitment data, this DOC fits select Cummins ISL-G applications using EPA07 emissions systems. Always confirm compatibility using your VIN number or the original stamped OEM part number on the unit.

Is there a core charge for this aftermarket DOC?

No. This is a brand-new aftermarket DOC with no core charge, no dirty core return, and no return freight expense.

Does this DOC come with clamps and gaskets?

The Full Kit option includes (2) 2871452 gaskets and (2) 2871862 clamps. The DOC Only option includes one DOC only and does not include gaskets or clamps.

Can this DOC ship to California?

No. This product cannot be sold or shipped to California.

*Note: Always verify exact compatibility using your vehicle's VIN number or original stamped OEM part number on the unit before placing an order.

California Shipping Notice: This product cannot be sold or shipped to California.

Disclaimer: Product images are for reference only. Price is for one (1) physical DOC unit. Included hardware is listed above where applicable.

Warranty Information

Global Emissions Systems offers a 3-year, unlimited mileage warranty on all their Catalyst Modules. See link in description for warranty terms