• Close-up of a silver John Deere alternator with black pulley and visible copper windings
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Alternator for John Deere 4000 Series Tractors w/Yanmar Engines 12V - Replaces VV12942377200

Alternator for John Deere 4000 Series Tractors w/Yanmar Engines 12V - Replaces VV12942377200

400-52159

£168.90 GBP
£202.68 GBP £168.90 GBP
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John Deere Alternator

Fits CX27B, TT-10, TT-12, TT-4 AWD & More (40 Amp)

Keep your John Deere running with this 40 Amp 12V replacement alternator. Designed as a direct-fit replacement for the excavators - mini, utility tractor listed below, it delivers reliable charging for standard and accessory electrical loads.

This unit features an internal fan (IF) and an internal regulator (IR), and is supplied with a V1 pulley already fitted.

DIRECT FIT: Replaces Andre Niermann 021170 — no modification required on the machines listed below.

Key Features

  • ✔High Capacity: 40 Amps of charging output.
  • ✔Direct Replacement: Replaces Andre Niermann 021170.
  • ✔Pulley Fitted: V1 pulley installed and ready to fit.
  • ✔Robust Design: IF fan. IR regulator.
  • ✔Quality Assured: New aftermarket unit, 12 month warranty.

Technical Specs

Voltage: 12 Volts
Amperage: 40 Amps
Rotation: CW (Clockwise)
Pulley: V1 (Single Groove)
Regulator: Internal (IR)
Fan Type: Internal (IF)
Clock: 12
SKU Reference: 400-52159

Vehicle Fitment Guide

Make Equipment Type Models
Case IH Excavators - Mini CX27B
Eagle Tugs Utility Tractor TT-10, TT-12, TT-4 AWD, TT-5 AWD, TT-6 AWD, TT-8 AWD
John Deere Excavators - Mini 27D, 30G
John Deere Tractor Loaders 110 TLB
John Deere Tractors - Utility 1023E, 1025R, 1026R, 3120, 3320, 3520, 3720, 4105, 4200, 4210, 4300, 4310, 4400, 4410, 4500, 4510, 4600, 4610, 4700, 4710
NEW Holland Excavators - Mini E27B

OEM Part Number Cross Reference

Andre Niermann 021170
Arrowhead ND101211-1170, ND9761219-117, AND0286
Cargo 113742
Case VV12942377200
Denso Reman 9761219-117
Denso 101211-1170
Dixie A-80051
Dubois 912356
J&N Electrical Products 400-52159
John Deere AM879908, LVA12357, TY25243
Lester 12356
Lucas Electrical Europe LRA03058
Minnpar 47-5171
NEW Holland VV12942377200
PIC 290-450
WAI 12356N, 1-2967-01ND
Wilson HD 90-29-5421
Wilson 90-29-5421
Yanmar 129423-77200

Frequently Asked Questions

Will this fit my John Deere CX27B?

Yes — the CX27B appears in the fitment guide above. Check your existing part number against the cross reference table to confirm.

Is this a 40 Amp alternator?

Yes, this is a 40 Amp 12V unit with an IR regulator.

Is the pulley included?

Yes, a V1 pulley is pre-installed.

Is this new or remanufactured?

This is a brand new aftermarket unit — not a remanufactured core.

Note: Please verify your machine's serial number or existing part number to ensure compatibility.
Fast shipping available across the UK and Europe.

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Shipping calculated at checkout. Free shipping over £150. Terms apply