BOLD MAGENTA part numbers are new for 2026 ENGINE PARTS-UNLIMITED.COM STREET | 2026 ENGINE 1373 DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 4-6 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. FITS MODEL DESCRIPTION SIZE PART # SUZUKI GSX-R1000 01-04 Black Diamond exhaust valve Std. (24.00 mm) 0926-3249 C630 intake/exhaust valve guide Std. 0926-3250 GSX-R1000 05-08 White Diamond intake valve Std. (30.00 mm) 0926-3254 White Diamond exhaust valve Std. (24.00 mm) 0926-3255 C630 intake/exhaust valve guide Std. 0926-3256 Valve spring retainers (set of 16) Std. 0926-3252 GSX1300R Hayabusa 99-19 White Diamond intake valve Std. (23.00 mm) 0926-0355 White Diamond exhaust valve Std. (27.50 mm) 0926-0357 White Diamond Inconel exhaust valve Std. (27.50 mm) 0926-2864 Intake/exhaust valve guide Std. 0926-0360 Cast iron intake/exhaust valve guide Std. 0926-3039 Spring kit w/ dual springs (use OE retainers and bases or KMPI H.T. steel retainer PART #0926-2862) (65 lbs. @ 1.455” / 195 lbs. @ 0.415”) 0.490” lift max 0926-0862 Intake/exhaust steel retainer (fits OEM and KPMI spring PART #0926-0862) - 0926-2862 YAMAHA YZF-R1 07-08 Tensilite® titanium intake valve Std. (31.00 mm) 0926-3271 Black Diamond exhaust valve Std. (25.00 mm) 0926-3270 HEAD DIA. STEM DIA. TULIP OVERALL LENGTH NOTES PART # INTAKE 1.600”/40.64 mm 0.3105” 1.5” radius 3.850” Std. 0926-1675 1.660”/42.16 mm 0.3105” 1.5” radius 3.830” Oversize 0926-1676 EXHAUST 1.440”/36.58 mm 0.3100” 24” 3.780” Std. 0926-1677 1.50”/38.10 mm 0.3100” 24” 3.760” Oversize 0926-1678 VALVES FOR TRIUMPH 650/750 TWINS 63-83 • One-piece stainless-steel, Stellite-tipped valves impregnated by a special nitrided process with 0.002” depth and 0.0002” surface buildup to improve wear properties and reduce friction •This process provides resistance to corrosion; wears superior to hard chromium and electrolysis nickel-plating •Lightweight with profiles that provide excellent flow characteristics •Compatible with leaded and unleaded fuels and can be run in cast iron- and bronze-type guides at close tolerances for maximum oil control and heat dissipation •Sold each •Made in the U.S.A. SIZE GUIDE OD GUIDE ID PART # Std. 0.501” 0.3105” 0926-1668 +0.002” 0.503” 0.3105” 0926-1669 +0.004” 0.505” 0.3105” 0926-1670 VALVE GUIDES FOR TRIUMPH 650/750 TWINS 63-83 •Precision-made from C63000 nickel bronze •4-5% nickel content produces superior wear resistance and approximately 80% copper content delivers superior heat conductivity •Use OEM seals 0926-1668 0926-1677 0926-1675 VALVES,VALVE GUIDES AND SPRINGS (CONT)
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