buy RECD for generators onlineWhen you , the most important step is not finding a product quickly—it is confirming that the product, supplier and installation plan are appropriate for your particular DG set. A professional purchase should begin with technical verification and end with clear documentation, pricing and support terms.

CPCB has a published procedure for emission-compliance testing of retrofit emission-control devices for diesel power-generating-set engines up to 800 kW gross mechanical power, revised on July 24, 2023.

1. Identify Your DG Set First

Before contacting an RECD supplier, collect the basic information about your generator.

You should have:

DG-set manufacturer
Engine manufacturer
Engine model
Engine serial number
Gross mechanical power
DG-set capacity in kVA
Exhaust-pipe diameter
Existing silencer details
Photographs of the engine nameplate
Photographs of the exhaust arrangement

This information helps the supplier evaluate the application instead of recommending a generic product.

2. Don't Select an RECD Only by kVA

One common online-buying mistake is searching for an RECD using only the DG's commercial capacity.

For example:

“RECD for 500 kVA DG”

may not provide enough information for accurate product selection.

The engine model and gross mechanical power should also be considered.

CPCB's published RECD manufacturer information identifies applicability using in-use diesel genset engine power ranges and distinguishes Phase I and Phase II applications.

Therefore, provide complete engine details when requesting a quotation.

3. Find Out Who Actually Manufactures the Product

An online seller may be:

The original manufacturer
An authorized distributor
A dealer
A reseller
An installation contractor

Ask the seller to identify the actual RECD manufacturer.

This is important because the manufacturer's documentation, certification information, warranty and technical support may be different from those of the reseller.

4. Request the Exact RECD Model Number

Never finalize an order from a generic description such as:

“CPCB RECD available.”

Ask for the exact:

Product name
Model number
Manufacturer
Applicable engine range
Relevant product documentation

The model shown on the quotation should match the model shown on the technical datasheet and supporting documents.

This simple check can prevent confusion later.

5. Verify the Product's Application Range

Once you receive the model number, ask:

“Is this exact model applicable to my DG-set engine?”

Don't accept only a general statement such as:

“Yes, it works with diesel generators.”

Ask the supplier to confirm the relevant engine and power range.

CPCB's published manufacturer list demonstrates that certified RECD applicability differs across manufacturers and engine-power ranges.

6. Request the Technical Datasheet

Before paying, request the technical datasheet for the proposed product.

Review:

Model number
Product dimensions
Weight
Applicable engine range
Installation requirements
Exhaust connection requirements
Maintenance requirements
Manufacturer information

The datasheet should correspond to the exact product quoted to you.

7. Check Relevant Certification Documentation

Certification claims deserve particular attention.

If a supplier says:

“CPCB approved”

ask for supporting documentation.

CPCB's published RECD procedure establishes a system for emission-compliance testing and type approval of applicable RECDs.

CPCB also publishes information identifying RECD manufacturers and their stated applicability and certification agencies.

Don't treat a logo, website badge or WhatsApp message as sufficient evidence.

The documentation should relate to the product and application being offered.

8. Check the Latest Official Information

Regulatory and certification information can change.

May 9, 2025CPCB's currently published RECD manufacturer list is dated and identifies manufacturers, applicable engine-power ranges, Phase I/Phase II applicability and certification agencies.

If you are purchasing in 2026, check the latest information available from CPCB rather than relying exclusively on an old supplier listing or article.

Where applicable, also verify requirements with the relevant State Pollution Control Board, Pollution Control Committee or other competent authority.

9. Ask for a Complete Quotation

Don't ask only:

“What is the RECD price?”

Request a complete quotation covering the entire scope.

The quotation should ideally identify:

Equipment

RECD manufacturer
Model
Quantity

Installation

Installation charges
Fabrication
Exhaust modifications
Commissioning

Logistics

Transportation
Delivery

Commercial terms

Taxes
Payment terms
Delivery schedule
Warranty

This gives you a realistic picture of the final cost.

10. Compare the Total Cost, Not the Online Price

A supplier may advertise:

RECD – ₹X

but later add:

Installation
Fabrication
Transportation
GST/taxes
Commissioning

Another supplier may quote a higher equipment price but include installation and commissioning.

total delivered and installed costTherefore, compare quotations using the .

11. Understand What Affects RECD Price

RECD price for DG setThe can vary depending on the particular application.

Factors may include:

Engine power
Engine model
RECD model
Quantity
Exhaust configuration
Fabrication requirements
Installation location
Transportation
Warranty
Service scope

This is why a generic online price should be treated as an initial reference rather than a final project quotation.

12. Check Exhaust Compatibility

An RECD is installed as part of the DG exhaust system.

Before ordering, ask whether the supplier has reviewed:

Exhaust-pipe diameter
Existing silencer
Flange arrangement
Available space
Pipe routing
Mounting requirements
Exhaust modifications

If necessary, provide photographs and measurements.

For a complicated installation, a site inspection may be preferable to relying only on photographs.

13. Ask Whether Fabrication Is Included

This question can significantly affect the final price.

Clarify whether the quotation includes:

Exhaust-pipe modification
Flanges
Bends
Supports
Welding
Mounting structures
Other site fabrication

If fabrication is excluded, request a separate estimate.

Never assume it is included simply because the quotation says “installation.”

14. Confirm Installation Responsibility

There are several possible arrangements.

Supply Only

The supplier delivers the RECD and you arrange installation.

Supply + Installation

The supplier sends an installation team.

Complete Installation + Commissioning

The supplier manages the installation and commissioning process.

Ask the supplier to clearly state which option applies to your quotation.

15. Ask About Site Survey Requirements

A site survey can identify problems before the equipment reaches your facility.

The supplier may check:

Exhaust dimensions
Installation space
Access
Mounting arrangement
Existing pipework
Fabrication requirements

For multiple DG sets, surveying the installation locations can also help establish a realistic project schedule.

16. Confirm Delivery Time in Writing

An online listing does not necessarily mean immediate availability.

Ask:

Is the exact model in stock?
What is the manufacturing lead time?
What is the dispatch date?
What is the expected delivery date?
When can installation start?

If the RECD is being purchased for a project with a fixed deadline, include the agreed delivery schedule in the purchase order.

17. Check Whether Delivery and Installation Are Separate

Some suppliers may quote:

Equipment delivery: 10 days

but installation could happen several days later.

Ask for both dates:

Expected delivery: ______

Expected installation: ______

This distinction can be important if the DG needs to return to service quickly.

18. Examine the Warranty Carefully

Don't settle for the words:

“Warranty available.”

Ask for written warranty terms.

Check:

Warranty period
Warranty start date
Covered components
Labour coverage
Site-visit coverage
Exclusions
Claim procedure

Also ask who is responsible for warranty service if you purchase through a distributor.

19. Check Spare-Parts Availability

Before ordering, ask:

Which components may require replacement?
Are spare parts available locally?
What is the typical lead time?
Is maintenance required?
Who supplies replacement parts?

A supplier that can support the equipment after installation may be preferable for long-term operation.

20. Evaluate After-Sales Support

Online procurement should not end when the package arrives.

Ask about:

Technical support
Service engineers
Site visits
Troubleshooting
Warranty claims
Maintenance assistance

For an industrial DG installation, support availability can be an important part of the overall purchasing decision.

21. Be Careful With Extremely Low Prices

A surprisingly cheap quotation is not automatically a bad offer.

But you should investigate what is included.

Ask:

“Why is this quotation lower than the others?”

Possible explanations include:

Equipment-only supply
Installation excluded
Fabrication excluded
Transportation excluded
Different warranty scope
Different product specification

equivalent scopes of supplyThe key is to compare .

22. Avoid Buying From an Unidentified Seller

Before payment, verify basic supplier information.

Check:

Company name
Business address
Official website
Business email
GST details where applicable
Quotation
Invoice process
Bank-account details

Be particularly cautious if the seller refuses to provide a formal quotation or asks you to transfer money to an unrelated personal account.

23. Don't Rely on Online Reviews for Technical Verification

Customer reviews can tell you about:

Communication
Delivery
Service
Responsiveness

But reviews do not establish technical applicability or regulatory certification.

For those questions, use:

Manufacturer documentation
Technical datasheets
Relevant certification documents
Official CPCB information

Use reviews as supplementary information—not as technical proof.

24. Ask for Product-Specific Documentation

Before ordering, request the documents relevant to the proposed model.

Depending on the application, these may include:

Technical datasheet
Installation instructions
Product specifications
Relevant Type Approval documentation
Test-related documentation
Warranty certificate

Check that the model number is consistent across the documents.

25. Don't Assume One RECD Fits Every DG

The phrase “universal RECD” can be misleading if it is used without technical qualification.

Different DG installations can have different:

Engine models
Power ratings
Exhaust configurations
Installation conditions

CPCB's published information itself identifies different applicability ranges for certified RECD manufacturers.

Therefore, the correct approach is to establish product suitability from the actual DG specifications.

26. Check the Supplier's Technical Knowledge

A good supplier should be able to answer basic questions about the proposed product.

Ask:

Which engine range does the model cover?
What information do you need from my DG?
Is site inspection required?
What modifications are required?
What documentation is supplied?
Who handles installation?
What happens if the exhaust arrangement needs modification?

If the seller cannot answer these questions, obtain another technical opinion before ordering.

27. Get Everything in Writing

Important discussions should not remain only on phone calls.

Obtain written confirmation for:

Product model
Technical applicability
Price
Installation
Fabrication
Delivery
Warranty
Documentation
Service

This creates a clear record of what was agreed.

29. Review the Purchase Order Before Signing

The purchase order should clearly describe the equipment.

Include:

Manufacturer
RECD model
Quantity
Technical scope
Installation scope
Fabrication scope
Delivery date
Warranty
Documentation
Payment conditions

Avoid vague descriptions.

The supplier should know exactly what you expect to receive.

30. Make Current Compliance Verification the Final Step

Before installation, verify that the product and application remain consistent with the applicable requirements.

CPCB's published RECD procedure covers emission-compliance testing of applicable RECDs for diesel power-generating-set engines up to 800 kW gross mechanical power.

CPCB also publishes manufacturer information for certified RECDs, including applicable engine-power ranges and certification agencies.

However, buyers should not interpret this general information as a blanket compliance statement for every DG set.

The actual regulatory position can depend on the generator, engine, location, applicable phase and current requirements.

A Practical Pre-Order Checklist

“Order”Before clicking or making an advance payment, confirm:

DG Information

Engine manufacturer identified
Engine model identified
Gross mechanical power confirmed
DG capacity confirmed
Exhaust information collected

Product

Manufacturer identified
Exact RECD model confirmed
Datasheet received
Application range verified

Documentation

Relevant certification information requested
Official CPCB information checked
Product documents reviewed

Installation

Exhaust compatibility checked
Fabrication scope defined
Installation responsibility confirmed
Commissioning clarified

Commercial

Equipment price confirmed
Installation included/excluded
Fabrication included/excluded
Transportation confirmed
Taxes confirmed
Warranty confirmed

Delivery & Support

Dispatch date confirmed
Installation date discussed
Spare parts availability checked
After-sales service confirmed

Final Thoughts

buy RECD for generators onlineRECD price for DG setsThe decision to should be based on verification rather than convenience alone. Online platforms are useful for discovering manufacturers and comparing suppliers, but buyers should move beyond product listings before committing to a purchase. Start with the DG's engine and power information. Identify the exact RECD model, verify its stated application, request relevant documentation, and confirm installation requirements. Then compare suppliers using the complete project cost instead of the equipment price alone. The can vary considerably depending on the product, generator application, fabrication, installation, transportation, warranty and service scope. A slightly higher quotation may provide better overall value if it includes technical assistance and reliable after-sales support.

Buy RECD for Generator Online: What to Check Before You Order

From Certification to After-Sales Support — Everything to Confirm Before Placing Your Order