OEM Equivalent Aftermarket Filters for Gensets — Diesel (DG) & Gas Power Generation Sets
A G International supplies OEM equivalent aftermarket filters for gensets, both diesel (DG) and gas, ex-stock from Kolkata. Authorized distributor for Parker Racor, MANN+HUMMEL, and Baldwin Filters, and stockist for Fleetguard (Cummins Filtration) and Donaldson. Single-source delivery for complete 250, 500, 1000 & Major Overhaul A/B/C/D check maintenance filter kits for prime, standby, and critical continuous-power generators from our central Kolkata warehouse.
Instant Part # / Genset RFQ
Check Genset Filter Availability & Request a Quote
Facility managers, data center engineers, DG maintenance contractors & procurement teams: submit your OEM part number, engine serial, or choose your generator make and service interval — our team confirms genuine stock, OEM cross-references, and volume pricing immediately over WhatsApp.
Enter one or more part numbers. We cross-reference exact micron ratings, thread specs, bypass settings, and media surface area across our Tier-1 inventory.
Power Generation Fleet Coverage
Genset Engine Families We Supply Filters For
From standby building generators to continuous gas power plants running 24/7 in manufacturing hubs, hospitals, and data centers, we stock and cross-reference filtration across all primary generator architectures.
Category A: Cummins Power Generation (CPG & Industrial)
Category B: Kirloskar & Ashok Leyland Power Solutions
Category C: Perkins & Caterpillar (CAT / FG Wilson)
Category D: Volvo Penta, MTU & Gas Co-Generation Platforms
Filtration Categories Supplied
Complete Multi-System Filtration for Power Generation
A generator must crank and deliver full load instantaneously during a power outage. Our filtration solutions eliminate fuel varnishing, micro-particulate wear, and thermal degradation.
Engine Lube Filtration
Full-flow spin-on filters, bypass combo canisters, and micro-glass media designed to handle heavy soot loading and long stagnant sump intervals without media embrittlement. Brands stocked: Fleetguard, MANN-FILTER, Baldwin, Donaldson.
Fuel & HPCR Water Separation
Two-stage fuel protection with primary water separators (removing 99%+ free and emulsified water) and 2–5 micron secondary filters to shield high-pressure fuel pumps and unit injectors against contaminated diesel storage tanks. Brands stocked: Parker Racor, Fleetguard (Stratapore), Baldwin.
Air Intake Systems
High-efficiency dry-type radial seal air elements, inner safety elements, and acoustic silencer-box air cartridges that maximise airflow while preventing intake valve dusting in urban or dusty industrial environments. Brands stocked: Donaldson, MANN+HUMMEL, Baldwin.
Coolant & Cylinder Liner Protection
Chemically balanced spin-on water filters containing DCA4/SCA supplemental coolant additives to prevent cavitation erosion, liner pitting, and thermostat scaling. Brands stocked: Fleetguard, Baldwin, Donaldson.
Crankcase Ventilation & Gas Filters
Open and closed crankcase ventilation (CCV) oil mist coalescing filters, and dedicated gas engine fuel filters for natural gas, biogas, and landfill gas generators. Brands stocked: Parker Racor (CCV series), MANN-FILTER, Donaldson.
Preventive Maintenance Kits
Standardized "B-Check" & "C-Check" Generator Service Bundles
Never let a power outage catch your facility unprepared. Bundle your complete annual and bi-annual generator servicing into engine-matched, single-shipment filter kits.
Routine B-Check Kit (250–500 Hours / 6–12 Months)
Contents: Primary lube oil filter, secondary lube filter (or combo unit), fuel water separator element, and secondary fuel filter.
Ideal for: Standard commercial buildings, malls, and industrial DG sets undergoing annual oil and filter changes.
Comprehensive C-Check Kit (1000–1500 Hours / 24 Months)
Contents: Complete B-Check kit + primary outer air filter, inner safety air element, DCA coolant filter, and fuel tank breather cartridge.
Ideal for: Manufacturing plants, continuous-running DG sets, and quarry sites with heavy ambient dust.
Mission-Critical / Continuous Duty Overhaul Kit (2000+ Hours)
Contents: Full engine filtration suite + crankcase ventilation (CCV) coalescer element, bypass centrifuge liner/rotor, and fuel polishing secondary filters.
Ideal for: Hospitals, data centers, banking hubs, and round-the-clock baseload captive power plants.
Distributor Credentials
Genuine Tier-1 Filtration — Backed by 35+ Years in Industrial Power
Authorized distribution and technical stockist channel supplying authentic filtration solutions to power plants, facility management firms, and OEM service franchises.
Authorized Line Cards & Genuine Stock
Official supply channels for MANN, Baldwin, and Parker Racor, plus genuine Fleetguard stock. 100% genuine filters with valid manufacturer quality certifications — protecting multi-lakh engine overhauls.
35+ Years of Engineering Cross-Referencing
Provide us with an obscure Perkins, CAT, or Kirloskar generator part number, and our technical desk maps it to the exact Tier-1 replacement within minutes.
Data Center & Hospital Critical SLA Support
Deep buffer stocks of high-demand genset fast-movers (e.g., LF9009, LF670, FS1000, FS1212, WF2075, Racor 2040/2020 elements) for immediate emergency dispatch.
Central Kolkata Warehouse Hub
Direct counter pickup in central Kolkata and same-day courier/transport dispatch across West Bengal, Bihar, Jharkhand, Odisha, and PAN-India.
Frequently Asked Questions
Why is water separation so critical for diesel generators that run infrequently?
Standby generators often store diesel in base tanks or day tanks for months. Temperature fluctuations cause condensation, creating water pools and microbial growth (diesel algae). When the DG starts during an outage, this water can blow injector tips and seize fuel pumps. Installing Parker Racor or Fleetguard fuel water separators stops water before it ever reaches the engine.
Can you cross-reference original CAT or Perkins generator filters to Baldwin, Donaldson, or Fleetguard?
Yes. Caterpillar and Perkins source their OEM filters from top filtration manufacturers. We cross-reference your CAT (e.g., 1R-0716, 1R-1808) or Perkins (e.g., 26561117, 2654403) numbers to direct OEM-spec Baldwin, Donaldson, or Fleetguard alternatives, offering identical performance with significant procurement cost savings.
How often should the coolant filter be replaced on a diesel generator?
Chemically charged coolant filters (such as Fleetguard DCA4 / WF series) should be replaced during every standard B-check (typically every 500 hours or annually). The chemical pellets dissolve over time to maintain the corrosion inhibitor levels that prevent liner pitting and cylinder block cavitation.
Do you supply filtration for biogas and natural gas generators?
Yes. Gas-fueled engines (such as Cummins GTA series, Jenbacher, and CAT Gas) produce unique combustion byproducts requiring low-ash lube filters and coalescing fuel-gas elements to remove trace pipeline moisture and siloxanes. We stock specialized MANN and Baldwin gas engine filters.
Need Genset Filters Fast?
Share your generator kVA, engine serial number, or existing filter part numbers. Our Kolkata technical sales desk will confirm stock availability, OEM cross-reference, and a dispatched quote within minutes.