All CRU Brand parts come with a Lifetime Warranty (Excluding Differentials Brake Pads). New CRU Brand Manual Cam Chain Tensioner Comes With Gasket CRU manual cam chain tensioners are designed to replace the automatic and hydraulic tensioners on high performance engines. The automatic adjusters can back out when the throttle is closed suddenly at high rpm. This allows the cams to go momentarily out of time, and can result in bent valves and/or serious engine damage. Hydraulic tensioners have a tendency to put too much tension on the chain guide under high rpm/high oil pressure conditions, resulting in premature wear. Both problems can be eliminated with the installation of the CRU manual tensioner. No matter what the engine does, the cam chain tension will remain constant. A CRU manual cam chain tensioner is a must for any kind of performance riding. CRU manual tensioners are CNC machined from billet alloy to exact tolerances for perfect fit. Street Applications: GN 250 82-83, 85/88 GS 500E/F, 89-08 GSF 400, Bandit, 91-93 GSX 1300, Hayabusa, 99-07 GSXR 600, 97-00 GSXR 750, 96-99 GR 650, Tempter 83 GV 700, Madura 85 GV 1200, Madura 85-86 GV 1400, Cavalcade 86-88 GZ 250, 99-09 SRX 600, 86 SV 650, 99-04 XV 700 Virago, 84-87 XV 750 Virago, 81-83 XV 750 Virago, 88-97 XV 920 Virago, 81-83 XV 1000 Virago, 84-85 XV 1100 Virago, 86-99 Off Road Applications: CRF 150R, 07-up CRF 250R/X, 07-up CRF 450R/X, 02-up DR 250, 82-83/85 DR 650S/SE, 90-09 DRZ 250, 01-07 DRZ 400E/S/SM, 00-09 KLX 400, 03-04 RMX 450, 10 RMZ 450, 07-up SP 250, 82-83/85 SP 600, 85 TT 600, 83-84 XR 400, 96-up XR 650R, 00-up XT 550, 82-83 XT 600, 84-94 ATV Applications: TRX 400EX, 99-up TRX 450R, 06-up LT250 EF, 85-86 LT 300E, 87-89 LTA 450, King Quad, 08-09 LTR 450, 06-up LTF/LT/A 500 Quad Runner/Quad Master/Vinson, 98-up LTZ 400, 03-up KFX 400, 03-up Arctic Cat DVX 400, 03-06 YFM 700 Grizzly, 07-Up YFM 700 Raptor, 06-Up YFM 660 Grizzly, 02-06 YFM 600 Grizzly, 98-01 YFM 660 Raptor, 01-05 YFM 550 Grizzly, 09-Up YXR 660 Rhino, 04-07 YXR 700 Rhino 08-Up Returns: If you receive an incorrect item you must contact us within 30 days. If we have made a mistake you will receive a 100% refund including all shipping charges. If you purchased the wrong part or just don't need it anymore you can return it. There will be a 20% restock fee applied to the selling price the buyer is responsible for shipping charges.