null
CALL or TEXT (800) 909-7060
Back

Secondary (Inner) Engine Air Filter for Caterpillar Equipment

SKU:
1318903
FitsModel:
416C, 420D, 428D, 257, 277, 279D, 287, 289D, 299D, 236D, 246C, 262C, 272D, 307, 312D, 314D, IT14G, TH210, 906H, 908H, 914G
ListDescription:
Air Filter, Secondary (Inner)
caterpillar secondary engine air filter
Part # 1318903

Fits Models At A Glance:

  • Caterpillar Backhoe Loaders:
    416C, 416D, 420D, 424D, 426C, 428C, 428D,
    430D, 432D, 436C, 438C, 438D, 442D

  • Caterpillar Compact Track Loaders:
    257, 257B3, 257D,
    267, 267B,
    277, 277B, 277C, 277D,
    279C, 279D,
    287, 287B, 287C,
    289C, 289D,
    297C, 299C, 299D

  • Caterpillar Skid Steer Loaders:
    216,
    236, 236B, 236B2, 236B3, 236D,
    242B3, 242D,
    246, 246B, 246C,
    248, 248B,
    252, 252B, 252B2, 252B3,
    256C,
    262, 262B, 262C,
    268B,
    272C, 272D, 272D XHP

  • Caterpillar Excavators:
    307,
    311, 311B, 311C U, 311D, 311D LRR,
    312, 312B, 312B L, 312C, 312C L,
    312D, 312D2, 312D2 GC, 312D2 L,
    314C, 314C CR, 314C LCR,
    314D, 314D CR, 314D LCR,
    315, 315B,
    317, 317N,
    M312, M315

  • Caterpillar Industrial / Toolcarriers:
    IT14G, IT14G II, RT80, 554

  • Caterpillar Telehandlers:
    TH62, TH63, TH82, TH83,
    TH103, TH210, TH215,
    TH406C, TH407C, TH414C, TH417C

  • Caterpillar Wheel Loaders:
    906, 906H, 906H2,
    907H, 907H2,
    908, 908H, 908H2,
    910K,
    914, 914G, 914G2


Key Notes:

  • Filter Type: Secondary (inner / safety) engine air filter

  • Part Numbers: 1318903, AF25558

  • Application: Safety air filtration used behind the primary filter

  • Function: Prevents engine damage if the primary filter fails or is improperly seated

  • Location: Inner air filter inside the engine air cleaner housing

  • Weight: 1 lb


Why Choose Broken Tractor:

  • Critical Engine Protection: Designed to protect engines from catastrophic dust ingestion

  • Correct Secondary Fitment: Matched specifically as an inner safety filter for listed Caterpillar machines

  • Fast Shipping: Ships quickly from a U.S.-based heavy equipment parts team

$38.00

Shipping charges are calculated at checkout.
Items are NOT guaranteed to be in stock at the time of order.
Refunds are offered if the item is on back-order.

Can’t Find What You’re Looking For?

Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.

1-800-909-7060 Parts Request Form

FEATURED PRODUCTS

Shipping & Return Policy

Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.

Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.

Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please call us toll free, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! Give us a call at 1-800-909-7060 and we would be pleased to help you.

Privacy Policy | Terms & Conditions

Copyright © 2025 Broken Tractor LLC - All Rights Reserved


Product: Category: Brand: Head Title: Secondary Engine Air Filter | Broken Tractor | 1318903