Information 275AMP 12 Volt HD Alternator One Year Warranty PAD MOUNT Designed for Battery Isolator Charging Systems Replaces: 4942PA, 4942PARM, A0014942PA, ZLN4942PA, 1174822, LN4942PA Sales number 4942PA System voltage 12 Output 270 Mounting style PAD Rotation CLOCKWISE Mounting bolt size F .417-.427 R .476-.486 Positive stud size 5/16-18 UNC Negative stud size 3/8-16 UNC Rectifier location INTERNAL Shaft diameter 7/8 INCH Excitation type Ignition Excite Regulator location Integral Notes: PAD MOUNT FOR BATTERY ISOLATOR SYSTEMS3 Fits School Buses, RV Motorhomes, Trucks, Fire Apparatus Applications Terms and Conditions - Contact Information Return Policy Please inspect your product immediately upon receiving it. Claims for shipping damage need to be made within 48 hours. New product returns must be approved and need to be returned in "like new" unused condition in original packaging. Please use care in packaging return merchandise. Warranties All our Alternators and Starters when properly installed, are warranted against defects in materials and workmanship to the original purchaser for a period of one (1) year. Warranty does not cover failure due to accident, abuse, neglect or as the result of normal wear and tear. Improper installation, careless handling, tampering or disassembly in any way; will void original factory warranty. Failures due to rust, submersions, deliberate abuse, broken gears, housings or components shall not be considered for warranty, nor products used in applications for which they were not intended. The sole responsibility of AJ-Electric if any; shall be the repair or replacement of defective products as stated above. This warranty being expressly in lieu of all other obligations or liabilities and AJ-Electric neither assumes nor authorizes any other person or firm to assume for it any other liability in connection with the sale of its products or merchandise. It is the responsibility of the customer to verify the correct application information prior to purchasing any product from AJ-Electric. Buyer will be responsible for shipping charges on items purchased in error Variations We always try and ship the latest most advanced design for your vehicle application. This at times may result in slight appearance differences. Please be assured that this item will fit and function perfectly.