Perfect Fit! Train horn is an 18"X6", 3 Largely stacked horns. Horn fits perfectly near the alternator with 1/2" space between. Recommend removal of the hood metal bracket locking guide plate. Perfect spot, no complaints. Just letting people know not to cut me off. Nice to see people seriously veer off the road. Average 2 horn blows a day can't complain really usefull. Avoided over 30 near accidents from inattentive drivers.