Optima Yellowtop D51R Part#8073-167. Cranking Amps 625. Cold Cranking Amps 540. Capacity 41. Reserve Capacity 70.
http://www.optimabatteries.com/publi...51R_082004.pdf
DUAL PURPOSE (STARTING & DEEP CYCLE) BATTERIES
MODEL NUMBER D34/78 D75/25 D34 D35 D51 & D51R
PERFORMANCE
Voltage 12v 12V 12v 12v 12v
Cold Cranking Amps @ 0F 750 650 750 650 500
Cranking Amps @ 32F 870 810 870 810 625
Reserve Capacity 120 98 120 98 70
Capacity (C/20 Rate) 55 48 55 48 41
Internal Resistance (ohms) .0028 .0030 .0028 .0030 .0046
PHYSICAL SPECS
Length 10" 9 5/16" 10" 9 5/16" 9 5/16"
Width 6 7/8" 6 13/16" 6 7/8" 6 13/16" 5 1/16"
Height 7 13/16" 7 5/8" 7 13/16" 7 5/8" 8 15/16"
Mimimum Weight (lbs) 43.5 37.8 42.9 36.4 26
Type Post/Terminal Dual SAE & GM Dual SAE & GM SAE Post SAE Post SAE Post
BCI Group 34/78 75/25 34 35 51 & 51R