Product Description
12V 3.4W Instrument Panel Light Bulbs Datsun 240Z 260Z 280Z 520 521 620 B210 200SX 311 Roadster Poss More 2671389900
Price is for QTY ONE (1) bulb
These are the proper voltage, wattage, and size bulbs for the Datsun instruments
Base: Ba9s
Glass: G3.5 / G3-1/2 (.44" OD)
Lookalike bulbs are all rated at 14V or 14.4V and have less watts than OE
This is probably why people complain that their instruments are dim and hard to read at night...
because somewhere along the way, the original 12V 3.4W bulbs got replaced with same size, aftermarket, lesser wattage bulbs
Examples of some same size aftermarket bulbs:
GE 1445 14.4V 2.7W
Eiko & Phillips 1445 14.4V 1.87W
Sylvania 1445 14.4V 1.9W or 1.94W
Eiko 363 14V 2.8W
CEC 53 14.4V 1.7W
These bulbs when rated at 12V will have even LESS watts
1969-1979 520 521 620 Pickup Trucks
1974-1978 B210
1977-1983 200SX S10 S110
1970-1978 240Z 260Z 280Z S30
SPL SRL 311 Roadster
Possibly more- the manuals and parts catalogs are often vague or have missing information
NOTE
Owner's Manual and FSM Discrepancy!
The Owner's and Service manuals call for a 57 bulb
A 57 bulb has the correct wattage, but it is longer and fatter than the OE bulb
I do not believe a 57 bulb will even fit into a speedometer, tachometer, or any of the 3 smaller instruments because of the green dome inside the instrument
Any feedback regarding this issue is welcome