The OTR brand is dedicated to providing the highest quality heavy-duty parts on or off road. Extensive customer research, independent testing, and product development go into each of our parts to ensure they keep your drivers safe and your trucks on the road. TRUCKING IS OUR BUSINESS ™
OTR offers a full line of premium quality Class 6-8 parts and components, backed by a nationwide 2-year warranty. Whether you need a DPF, DOC, radiator, or coolant, OTR has what you need to keep your engine cool and your truck moving.
OTR Is Cooler Than The Rest . . . . . . . . . . . . . . 1 Charge Air Coolers, Tester Kit . . . . . . . . . . . . 2-3 Radiators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 System Essentials . . . . . . . . . . . . . . . . . . . . . . . 8 Exhaust Aftertreatment System . . . . . . . . . . . 9 New vs Remanned . . . . . . . . . . . . . . . . . . . . . . 10 Why OTR DPFs and DOCs? . . . . . . . . . . . . . . . 11
DPFs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13 DOCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Gaskets & Bellows . . . . . . . . . . . . . . . . . . . . . . 15 Cross References: Charge Air Coolers . . 16-19 Cross References: Radiators . . . . . . . . . . 20-29
AIR BRAKE SYSTEMS • A/C • AIR INTAKE & EXHAUST • BRAKES • CAB • CHROME COOLING SYSTEM • ELECTRICAL • FILTRATION • HYDRAULICS • LIGHTING • LUBRICATION POWERTRAIN • STARTERS & ALTERNATORS • STEERING • SUSPENSION • TOOLS • WHEEL END
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