Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

FLEETGUARD Automotive Air Filter: Panel, Round, Panel, 25 in Outside Dia - Bottom - Panel Engine Air Filters
FLEETGUARDPanel Engine Air Filters

FLEETGUARD Automotive Air Filter: Panel, Round, Panel, 25 in Outside Dia - Bottom

The FLEETGUARD Automotive Air Filter: Panel (SKU 834EP1, MPN AF4178) is a round panel engine air filter with a 25-inch outside diameter at the bottom and a 25-inch overall length. It is compatible with Caterpillar…

SKU 3G-OTH-493244

Brand
FLEETGUARD
Item
Automotive Air Filter: Panel, Round, Panel, 25 in Outside Dia - Bottom
Category
Panel Engine Air Filters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

FLEETGUARD
Manufacturer Part Number
AF4178
Type
Round, Panel, 25 in Outside Dia - Bottom
Overall Lg
25 in
Baldwin Interchange
PA1765
FleetGuard Interchange
AF4178
Compatible Vehicle Make
Caterpillar
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

FLEETGUARD Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The FLEETGUARD Automotive Air Filter: Panel (SKU 834EP1, MPN AF4178) is a round panel engine air filter with a 25-inch outside diameter at the bottom and a 25-inch overall length. It is compatible with Caterpillar vehicles and cross-references to Baldwin PA1765 and FleetGuard AF4178.

Frequently Asked Questions

What is the FLEETGUARD AF4178 air filter used for?

The FLEETGUARD AF4178 is a round panel engine air filter designed for Caterpillar vehicles. It removes airborne contaminants from intake air, protecting engine components. This filter is commonly used in heavy-duty construction, mining, and agricultural equipment where reliable air filtration is critical.

What are the specifications of the FLEETGUARD AF4178?

The FLEETGUARD AF4178 is a round panel air filter with a 25-inch outside diameter at the bottom and a 25-inch overall length. It cross-references to Baldwin PA1765 and FleetGuard AF4178. This filter is compatible with Caterpillar vehicles and is manufactured under part number AF4178.

Where to buy the FLEETGUARD AF4178 worldwide?

3G Electric supplies the FLEETGUARD AF4178 air filter to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for a quote and lead time on this Caterpillar-compatible filter.

How to select the correct FLEETGUARD air filter for a Caterpillar engine?

To select the correct FLEETGUARD air filter, verify your Caterpillar engine model and measure the filter's outside diameter and overall length. The AF4178 has a 25-inch outside diameter at the bottom and a 25-inch overall length. Cross-reference with Baldwin PA1765 or FleetGuard AF4178 for compatibility.

Used in

Common applications for FLEETGUARD
Diesel generator maintenance — Fleetguard CC8997 test strips for coolant condition monitoring in standby power systems
Industrial compressor cooling systems — Fleetguard coolant test strips to verify pH and inhibitor levels in closed-loop circuits
Marine engine servicing — Fleetguard filtration and test kits for preventive maintenance on shipboard diesel engines
Heavy equipment fleet management — Fleetguard fuel and oil filters for excavators, loaders, and bulldozers in construction
Gas turbine auxiliary systems — Fleetguard air intake filters for turbine enclosures in power generation plants
Hydraulic power units — Fleetguard hydraulic filters for maintaining fluid cleanliness in industrial presses and injection molders

FLEETGUARD Products

3G Electric supplies FLEETGUARD panel engine air filters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from FLEETGUARD

View all FLEETGUARD parts
FLEETGUARD Automotive Air Filter: Engine, 16 5/16 in Outside Dia - Bottom, 16 5/16 in Overall Lg (MPN AF55014). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: JCB; Baldwin Interchange: PA31002; FleetGuard Interchange: AF55014.
FLEETGUARD
FLEETGUARD Automotive Air Filter: Engine, 16 5/16 in Outside Dia - Bottom, 16 5/16 in Overall Lg (MPN AF55014). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: JCB; Baldwin Interchange: PA31002; FleetGuard Interchange: AF55014.
FLEETGUARD Automotive Air Filter: Panel, Round, Panel, 16 1/2 in Outside Dia - Bottom, Caterpillar (MPN AF1869). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Caterpillar; Baldwin Interchange: PA2554; FleetGuard Interchange: AF1869.
FLEETGUARD
FLEETGUARD Automotive Air Filter: Panel, Round, Panel, 16 1/2 in Outside Dia - Bottom, Caterpillar (MPN AF1869). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Caterpillar; Baldwin Interchange: PA2554; FleetGuard Interchange: AF1869.
FLEETGUARD Automotive Air Filter: Panel, Panel, 9 21/32 in Outside Dia - Bottom, PA4113, AF25757. Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: General Motors; Baldwin Interchange: PA4113; FleetGuard Interchange: AF25757.
FLEETGUARD
FLEETGUARD Automotive Air Filter: Panel, Panel, 9 21/32 in Outside Dia - Bottom, PA4113, AF25757. Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: General Motors; Baldwin Interchange: PA4113; FleetGuard Interchange: AF25757.
FLEETGUARD Automotive Air Filter: Round, 7 29/32 in Outside Dia - Bottom, 7 29/32 in Overall Lg (MPN AF55021). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Hydrema; Baldwin Interchange: PA31006; FleetGuard Interchange: AF55021.
FLEETGUARD
FLEETGUARD Automotive Air Filter: Round, 7 29/32 in Outside Dia - Bottom, 7 29/32 in Overall Lg (MPN AF55021). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Hydrema; Baldwin Interchange: PA31006; FleetGuard Interchange: AF55021.
FLEETGUARD Automotive Air Filter Pack: Panel, Round, Panel, 37 in Outside Dia - Bottom, Jenbacher (MPN AF25506). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Jenbacher; Baldwin Interchange: PA2395; FleetGuard Interchange: AF25506.
FLEETGUARD
FLEETGUARD Automotive Air Filter Pack: Panel, Round, Panel, 37 in Outside Dia - Bottom, Jenbacher (MPN AF25506). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Jenbacher; Baldwin Interchange: PA2395; FleetGuard Interchange: AF25506.
FLEETGUARD Automotive Air Filter: Engine, 9 1/2 in Outside Dia - Bottom, 9 1/2 in Overall Lg (MPN AF55320). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Cummins; Baldwin Interchange: PA31007; FleetGuard Interchange: AF55320.
FLEETGUARD
FLEETGUARD Automotive Air Filter: Engine, 9 1/2 in Outside Dia - Bottom, 9 1/2 in Overall Lg (MPN AF55320). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Cummins; Baldwin Interchange: PA31007; FleetGuard Interchange: AF55320.
FLEETGUARD Automotive Air Filter: Engine, 6 19/32 in Outside Dia - Bottom, 6 19/32 in Overall Lg (MPN AF55030). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Bobcat; Baldwin Interchange: PA31013; FleetGuard Interchange: AF55030.
FLEETGUARD
FLEETGUARD Automotive Air Filter: Engine, 6 19/32 in Outside Dia - Bottom, 6 19/32 in Overall Lg (MPN AF55030). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Bobcat; Baldwin Interchange: PA31013; FleetGuard Interchange: AF55030.
FLEETGUARD Automotive Air Filter: Panel, Round, Panel, 12 13/16 in Outside Dia - Bottom, Dodge/Ram (MPN AF4189). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Ram; Baldwin Interchange: PA3763; FleetGuard Interchange: AF4189.
FLEETGUARD
FLEETGUARD Automotive Air Filter: Panel, Round, Panel, 12 13/16 in Outside Dia - Bottom, Dodge/Ram (MPN AF4189). Key specifications — Brand: FLEETGUARD; Compatible Vehicle Make: Ram; Baldwin Interchange: PA3763; FleetGuard Interchange: AF4189.