Motor for Warn Winch 20 Spline Shaft M1900 MRV Style
20 Spline Shaft

•Part #: 51004
Rotation: Bi-Directional
Overall Length: 9.154 in.
Shaft Outside Diameter: 0.654 in.
Shaft Style: 20 Spline
Terminal 1 Size: M8 - 1.25
Terminal 2 Size: M8 - 1.25
Housing Finish: Black field case
Weight: 17.6 lbs.

Notes: Also available in 4.8 HP, see motor# 51009.
•
•Aftermarket
•9 Month Warranty

Application:
•M1900
•Arco Marine
•Superwinch
•Warn Industries
•Warn Winch

Replaces MPN
•Prestolite MRVB4
Prestolite MRVB7
•Warn 8403
Warn 31560
Warn 38894
•Cross References:
Iskra 11-216-273,
•Iskra: AMJ4635
Lester 10746
Lester 10747
Lester 160-799
Lester 160-800
Prestolite: MRV-B-4
Prestolite MRV-B-5
Prestolite MRV-B-7
Superwinch: 2401
Superwinch 2404
Superwinch 31681
Superwinch M-2401
Superwinch M-2404,
Superwinch MRV-B-4
Superwinch MRV-B-5
Superwinch X9
Warn: M25314
•Warn M25981
•Warn M25982


Applications:
MODELS, MX12085, M12000, MX10000, M10000, M8274,

( SUPERWINCH HUSKY SERIES )ARCO MARINE, WARN INDUSTRIES, WARN WINCH’S
51004
Replaces part #
Iskra 11-216-273
Iskra AMJ4635
Lester 10746
Lester 10747
Lester 160-799
Lester 160-800
Prestolite MRV-B-4
Prestolite MRV-B-5
Prestolite MRVB7
Superwinch 2401

Superwinch 2404

Superwinch 31681

Superwinch M-2401

Superwinch M-2404

Superwinch MRV-B-4

Superwinch MRV-B-5

Superwinch X9
Warn M25314

Warn 2598

Warn M25982




This motor will replace the following part #'s




APPLICATIONS



Superwinch Husky Series:
•MX12085
•M12000
•MX10000
•M10000
•M8274





Iskra: 11-216-273

Iskra AMJ4635
Lester 10746

Lester 10747,

Lester 160-799

Lester 160-800
Prestolite MRV-B-4

Prestolite MRV-B-5

Prestolite MRV-B-7
Superwinch 2401

Superwinch 2404

Superwinch 31681

Superwinch M-2401

Superwinch M-2404

Superwinch MRV-B-4

Superwinch MRV-B-5, X9
Warn: M25314, M25981, M25982

Replaces part #



•WMS W5623
•81560, 39322, 15747, 17102,
•Prestolite MRVB4
• 18184
•Prestolite MRVB5
• F000MM0618, 31681, 2401, 2404,
•Prestolite MCV-B-4
•Prestolite MRV-B-4
•Prestolite MRV-B-5

Cross References:

9130450047, 7536, 15747, 15877, 17102, 18184,

WMS W8923

226626, 26629, D-2000, M-1900,

Ramsey 458058

Iskra 11212449, 7682, AMJ-4635