BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | TIRE & SERVICE SERVICE & MAINTENANCE TOOLS SERVICE & MAINTENANCE TOOLS 516 PISTON RING REMOVER AND INSTALLER TOOL KIT • Includes 12 ring bands, piston ring compressor plier and piston ring expander plier •Piston ring pliers can be used parallel or vertical to the cylinder block •Plier with ratchet lock can fix the handle in suitable position to ease the installation of ring and piston •Suitable for piston sizes from 1 3/8” to 4 3/8” (35 mm to 111 mm) DESCRIPTION PART # Water pump drive and rotor service tool for Polaris 3801-0327 WATER PUMP DRIVE AND ROTOR SERVICE TOOL FOR POLARIS •Compare to OEM #PA-49316 •Designed for removing and installing the water pump drive gear on the rotor and to remove the rotor from the crankshaft •It fits most Polaris ATV and Side x Side models and also works on the RZR XP DESCRIPTION PART # Water pump seal driver tool for Polaris 3801-0425 TWIN WATER PUMP SEAL DRIVER TOOL FOR POLARIS •Used to install water pump seals on Polaris Ranger 700/800 07-18 and RZR 800 08-14 •Made of lightweight PVC DESCRIPTION PART # Stud removal tool 3801-0407 STUD REMOVAL TOOL KIT • Kit consists of 10 pieces, which includes five extractor bits and five installation bits •Comes with following size bits: M10 x 1.5, M10 x 1.25, M8 x 1.25, M7 x 1.0, M6 x 1.0 •Comes in plastic storage case DESCRIPTION PART # Stud setter and extractor 3801-0379 STUD SETTER AND EXTRACTOR •Eccentric rotation provides powerful grip for removing stubborn or rusted threads, or for setting new ones •Fits 6 mm to 19 mm studs •Use with 1/2” drive ratchet DESCRIPTION PART # M6 x P1.0 3801-0369 M8 x P1.25 3801-0370 DESCRIPTION PART # M10 x P1.25 3801-0371 M10 x P1.5 3801-0372 STUD REMOVER AND INSTALLER TOOLS •Specially designed to remove and install studs without damaging the threads •Suitable for most popular stud thread sizes DESCRIPTION PART # Piston ring expander pliers 3801-0375 PISTON RING EXPANDER PLIERS •Tapered jaws hold and expand piston ring easily over piston block •Ratcheting lock mechanism keeps handles in position for easy piston and ring installation DESCRIPTION PART # Piston ring remover and installer tool kit 3801-0374 DESCRIPTION PART # FOR PISTON SIZES FROM 1 7/8” TO 2 7/8” Piston ring compressor set; 4 rings 3801-0172 FOR PISTON SIZES FROM 2 7/8” TO 4 3/8” Piston ring compressor set; 6 rings 3801-0291 PISTON RING COMPRESSOR SETS •Fine-tooth ratcheting motion will compress the bands in small increments for accurate compression; will not break or damage rings •Made in the U.S.A. DESCRIPTION PART # Piston ring installation tool 3801-0256 PISTON RING INSTALLATION TOOL •Designed to prevent ring breakage during installation •Easily removed after cylinder is in position •Four ring fixture tools for piston sizes 40 to 85 mm •Storage case included DESCRIPTION PART # Piston ring installer 3801-0189 PISTON RING INSTALLER •Installs and removes piston rings 3/64” to 1/4” thick •Comfortable vinyl grip handles 9-BAND PISTON RING COMPRESSOR SET •Compression band sizes: 2 1/8” to 2 3/8”, 2 3/8” to 2 5/8”, 2 5/8” to 2 7/8”, 2 7/8” to 3 1/8”, 3 1/8” to 3 3/8”, 3 5/8” to 3 7/8”, 3 7/8” to 4 1/8”, 4 1/8” to 4 3/8” •Used to compress and install piston rings •Fine-tooth ratcheting mechanism allows bands to be contracted in small increments •Set contains fine-tooth ratcheting pliers and nine different size bands DESCRIPTION PART # Piston ring compressor set 3801-0432 3801-0369 3801-0291
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