B10 Alternator

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Datsun 1000 uses the early Datsun alternator, A Mitsubishi or Hitachi unit with a four-spade rectangular connector. It was available in 25A or 30A versions. This is the same alternator as used by Datsun 411 and early Datsun 510. It is the same diameter as the more modern Datsun 1200 and 510 35A alternator.

Overview

Hitachi LT125-02 AC300/12WR 250W output @ 12V

Uses Voltage Regulator TL1Z-10A (Tirill leaf-spring type with 3-point constant voltage relay and pilot lamp relay)

Part Numbers

B10 Datsun 1000 Hitachi
23100-18001 LT125-D2
* same as 520 J13 engine certain version 
23100-18005 LT125-D2 (ISO)
23100-H0100 LT125-06 from 1969
23100-H0300 LT125-06 from 1969 Coupe
23100-A4600 LT130-65 (op.) Van, T
* same as 510 certain version
23100-A4601 LT130-65 (op.) Coupe

B10 Datsun 1000 Mitsubishi single-lug
23100-18010 214-886
23100-18015 214-886 (ISO)

B10 Datsun 1000 Mitsubishi two-lug
23100-H0110 AF2025A
23100-H0110 AF2030A5 (op.) (exc. Coupe)
23100-H0110 AF2030A6 (op.) Coupe

BRACKET-alternator
11710-18000 <x> 11710-H0100
11710-H0100 
11710-27720 506W alternator (op.) Rally

Wiring

See Basic_Alternator_Wiring#1960s_Alternator

Also see wiring diagram on Datsun100.com

Early 510

BW 
GR
RL
GB

Datsun 510 JDM (3-lug mounting)
1967-1970
23100-21000 LT130-41 Hitachi
23100-21005 LT130-41 Hitachi (ISO)
23100-21600 LT140-66 Hitachi (op.)
23100-21605 LT140-66 Hitachi (op.) (ISO)
23100-A4800 LT140-53 Hitachi PP, PY
23100-21005 LT130-41K Hitachi P510
23100-A4600 LT130-65 Hitachi
* SAME AS LATE DATSUN 1000
23100-A4601 LT130-72 Hitachi 
23100-21010 12V-30A Mitsubishi
23100-21015 12V-30A Mitsubishi (ISO)
23100-A4610 12V-30A, AG2030A Mitsubishi 
23100-A4611 12V-30A, AG2030A Mitsubishi 
23100-21615 214-028, 40A Mitsubishi PP,PY
23100-A4810 AG2040A Mitsubishi PP,PY

410

NOTE: Positive Ground, so will not work on the 411

Datsun 410 JDM (3-lug mounting)
23100-61200 12V-300W Mitsubishi
 * 23230-12210 ASS'Y-DIODE SET
23100-10600 12V-300W Hitachi
  * 23230-61200 ASS'Y-DIODE SET
23100-10601 12V-300W Hitachi

411

NEGATIVE GROUND

W
W
WB
B

Roadster

SR (U20 engine) seems to have single-lug mounting
22177-25502 SR
23100-20111 12V-30A

SP (R16 engine) has two-ear mounting
22177-10810 SP
23100-14602 SP 1968
23100-12200 SP early
22177-10400 SP early

520

520 JDM J13
23168-10600 BRACKET 
 23100-14802 25A HITACHI 1965
11711-13201 BRACKET 
 23100-18000 HITACHI (from '66,4)
 23100-16700 HITACHI (from C # 520-095001)
 23100-18010 MITSUBISHI AS2025A1 (from '66,4) 
 23100-16710 MITSUBISHI 30A (from C # 520-095001)

Variations

The alternators themselves appear to have no part numbers on them, but possibly they have faded with time.

Mitsubishi 4-wire 3-ear alternator

Mitsubishi-Prestolite, 82mm between ears

Hitachi 4-wire, 3-ear alternator, 98mm between ears

Mounting

1000 alternator has one-lug lower boss (early 1000)
1000 alternator has two lower ears (later 1000)
1200 alternator has two lower ears

Early (1000) alternator versus Datsun 1200 alternator.

Same front mounting face
Same diameter fan pully
early 1000 Bottom mounting lugs differ 
later 1000 same mounting lugs

With some units, using a longer bolt and a spacer is needed: