BOLD MAGENTA part numbers are new for 2023 ENGINE PARTSCANADA .COM OFFROAD | 2023 621 DISCLAIMER: SEE PAGE 6 FOR IMPORTANT INFORMATION REGARDING CERTAIN WARRANTY AND EMISSION CONTROL REGULATION COMPLIANCE AND NOISE REGULATION INFORMATION. DESCRIPTION PART # 1.6 bar (23 psi) 1903-0017 DESCRIPTION PART # 1.8 bar (26 psi) 1903-0018 DESCRIPTION PART # 2.1 bar (30 psi) 1903-0019 RADIATOR CAPS • Old and faulty radiator caps can cause steam and fluid to be pumped out of the radiator overflow hose • A replacement cap is the least expensive and easiest way to solve or troubleshoot your liquid cooled bike/ATV radiator problems • Upgrading to a high-pressure 1.6 bar, 1.8 bar or 2.1 bar from the stock radiator cap is the simplest and least expensive way to avoid over-boiling your engine • Raising your cooling system’s maximum operating pressure increases your coolant’s boiling point, allowing you to ride harder and longer • Black finished cap • Universal fit for most Japanese models along with 2016-to-current model fitments for all KTM/Husqvarna, and from 21-22 all Gas Gas fitments • High-temperature corrosion-resistant silicone seals DESCRIPTION PART # For Honda/Kawasaki/Suzuki/Yamaha (26 psi) 1904-0182 For KTM/Husqvarna SX/SX-F 08-15, EXC/EXC-F/XC-F 08-16 (29 psi) 1904-0183 For KTM/Husqvarna SX/SX-F 16-18, EXC/EXC-F/XC-F 17-23 (29 psi) 1904-0184 RADIATOR PRESSURE CAPS • Replaces OEM radiator caps • Reduces loss of coolant due to overheating DESCRIPTION PART # Standard radiator cap, zinc-plated (gold) 1903-0008 DESCRIPTION PART # Standard radiator cap, black 1903-0009 DESCRIPTION PART # Grip-style radiator cap, chrome 1903-0010 STANDARD-PRESSURE RADIATOR CAPS • High-temperature silicone seals • Stock-pressure rating of 16 psi (1.1 bar) • PART #s 1903-0008 and 1903-0009 are stamped with metric pressure rating of 1.1 bar DESCRIPTION PART # CHROME CAPS 23 psi (red seal) 1903-0011 DESCRIPTION PART # CHROME CAPS (CONT) 30 psi (blue seal) 1903-0013 DESCRIPTION PART # BLACK CAP 26 psi (green seal) 1903-0029 HIGH-PRESSURE RACING RADIATOR CAPS • Engineered to increase pressure in cooling system, which then increases coolant boiling point; helps prevent boil-over • Chrome or black cap with grooved edges for grip; pressure rating printed on cap in metric and standard psi • Color-coded seals: red = 1.6K (23 psi), green = 1.8K (26 psi), blue = 2.1K (30 psi) • High-temperature silicone seals • Includes high-temperature metal film warning decal and adhesive • For competition use on most Hondas, Kawasakis, Suzukis and Yamahas • PART #1903-0010 includes high-temperature metal film warning decal and adhesive and features grooved edges for grip; pressure rating printed on cap in standard 16 psi and metric 1.1K • Universal fit for most Hondas, Kawasakis, Suzukis and Yamahas 1903-0017 1904-0182 1903-0008 1903-0009 1903-0010 1903-0011 1903-0013 1903-0029
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