Reference OE number: 109425 109426 109430 109429 5004187 5004188 23522123 R23522123 23522122 R23522122 Applicable models: For Freightliner 2004 and older 12.7 engine Most common air compressor for D-etroit Series 60 12.7 (PRE EGR) 2004 and older models This listing is for TF-750 Series 60 D-etroit Compressor It is same as TU-FLO-550 just 750 is producing more air more CFM. Air Compressor For Detroit Diesel Series 60 12.7 TU-FLO 750 R23522123 23522122. 109425 109426 109430 109429 5004187 5004188. 23522123 R23522123 23522122 R23522122. For Freightliner 2004 and older 12.7 engine. Most common air compressor for D-etroit Series 60 12.7 (PRE EGR) 2004 and older models. This listing is for TF-750 Series 60 D-etroit Compressor. It is same as TU-FLO-550 just 750 is producing more air more CFM. Efficient Air Supply, Fast Brake Response. Optimized cylinder & crankshaft design ensures stable air flow? 280 L/min, pressure 8-10 bar (fluctuation? 0.2 bar), avoiding brake delay for reliable high-frequency use. Harsh Condition Resistance, Long Durability. High-strength compacted graphite iron cylinder tolerates -40? 130? ; wear-resistant piston rings + chrome-plated cylinder reduce wear? 0.05 mm, service life over 8,000 hours. Energy-Saving, Low Power Occupation. Streamlined intake channels & low-friction components effectively cut power loss? 10% in daily use, reliably meet stable air demand without extra fuel consumption, thus significantly improving economy. Please contact our customer service in time and we will help you solve it. Avoid losing the goods due to wrong address or other unknown reasons. Thank you for choosing our auto parts products! Return period: Within 30 days from the date you receive the product, if you are not satisfied with the product, you can apply for a return. We will not be able to accept return applications after 30 days. We focus on providing a wide range of high-quality auto and motorcycle parts products to the majority of auto and motorcycle enthusiasts and professional repairers in the United States. Our products cover all aspects of automobiles and motorcycles, from engine parts, brake systems, suspension systems, to exterior parts, interior decorations, and various maintenance and repair tools. We strictly control product quality to ensure that every product meets high quality standards, so that you can shop without worries. All those issues would be solved immediately with your satisfactory!