Air Filter for Thermo King Reefer SB Refrigerators | Replacement Thermo King 11-9300
SKU:: TR508-RF
Description
✅ FITMENT:
Message us your VIN number, and we’ll confirm compatibility.
Alternatively, contact your dealer for the part number and verify it against our cross-reference list below.
✅ SPECIFICATIONS:
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Height: 9.9 in
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Outer Diameter: 4.9 in
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Inside Diameter (Top): Closed
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Inside Diameter (Bottom): 1.95 in
✅ COMPATIBLE ENGINES:
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Isuzu: 2.2L, 4FE1T, 4JC1, SE2.2
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Yanmar: TK4.86, TK486
✅ REPLACEMENT FOR:
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Fleetguard AF26661, AF25119
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Baldwin RS5387, RS5387KIT
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Carrier Transicold 119300, 129300, 201293002
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Luberfiner LAF9300
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Wix WA10060
✅ QUALITY & PERFORMANCE:
Constructed with high-efficiency pleated filter media that meets or exceeds OEM standards for filtration and airflow. Provides reliable engine protection against dust and contaminants, ensuring consistent power and performance even in tough environments.
✅ WARRANTY & MAINTENANCE:
Includes a 1-Year Manufacturer Warranty.
We recommend replacing your air filter every 15,000–30,000 miles to ensure maximum engine performance and efficiency.
Shipping
We take great care in preparing and delivering your order.
Processing Time
Orders are usually processed within one business day. After your order has been shipped, you will receive a shipping confirmation email. Tracking information may be included when available.
Estimated Delivery
Most orders arrive within 3-5 business days. Delivery times may vary depending on your location and the carrier's operational schedule.
Shipping Rates
Shipping costs are automatically calculated at checkout, based on your location and the selected delivery method.
Returns
Your satisfaction is our top priority, and we want you to feel confident shopping with us. If something isn't right, you can request a return or refund within 30 days of delivery.
How to Start a Return
Just contact our support team and we will guide you through the process. We will make sure it is simple and hassle-free.
Refunds
Once we have processed your return, your refund will be issued to the original payment method, typically within 5-10 business days.
Secure Checkout
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Fast Shipping
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Customer Support
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Easy Returns
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Protect Engine Components
Traps dust and debris to reduce engine wear and extend component life. Built to deliver dependable filtration under demanding highway, vocational, and everyday operating conditions.

Consistent airflow
Traps dust and debris to reduce wear.
Engine protection
Traps dust and debris to reduce wear.
Consistent airflow
Supports stable power and efficiency.
Consistent airflow
Supports stable power and efficiency.
Easy installation
Drop-in replacement. No modifications needed.
OEM-style fit
Matches OEM sizing for easier installation
Easy installation
Drop-in replacement. No modifications needed.
Easy installation
Drop-in replacement. No modifications needed.


Engineered from the inside out
Layered construction balances efficient airflow with lasting structural strength for dependable engine operation mile after mile.


Simplify maintenance schedules
Make routine engine maintenance easier with a direct-fit air filter designed for quick, straightforward replacement.
