Agricultural Alternator 14V 33A with Ø 82 mm Single Pulley for Fiat Agri, Ford, Lamborghini & Antonio Carraro - Part Number: 37633037

The heavy-duty agricultural alternator (part number 37633037, OEM cross-references AGN1037E, LS12508, AGN1783E, 9972269) is a compact 14 V / 33 A power generation unit engineered specifically for tractors, orchard machinery, and vineyard equipment. Built with a Form A housing, clockwise rotation (↻), mounting angle r 33°, and a multi-pin plug-in terminal block, it comes pre-fitted with an 82.0 mm single-groove V-belt pulley calibrated for 9.7 mm drive belts (pulley offset distance 49.0 mm, mounting bracket thickness 73.0 mm). This alternator represents the benchmark factory replacement for an extensive range of iconic and working tractors, including Fiat Agri (Nastro d'Oro, Diamante, Series 46, 56, 66, 76, 80, 88, 90, 93, 94, L Series, and TK crawlers), Ford (Series 30 and 35), Lamborghini (Crono, Grand Prix, Formula, C Series, R Series), and Antonio Carraro (Pomareiro Vinhateiro).

Key Features & Engineering Advantages

• Exact Direct-Fit Bracket Geometry: Engineered with a 73.0 mm mounting lug width, a 10.2 mm pivot bolt hole at 80.0 mm radius, and an 11.0 mm tensioner slot at 80.0 mm radius, ensuring drop-in replacement on original tractor engine brackets without shims.
• Pre-Fitted Ø 82.0 mm V-Belt Pulley: Balanced single-groove pulley matched to standard 9.7 mm V-belts with an exact 49.0 mm pulley offset, preventing belt misalignment, lateral scrub, and premature drive wear.
• Stable 14V / 33A Charging Curve: Tailored for classic agricultural 12V electrical systems, delivering steady battery charging and continuous power to dashboard instruments, marker lights, and cab blowers across full engine operating RPMs.
• Plug-In Multi-Terminal Connector: Weatherproof snap-in socket design seals internal electrical terminals against vibration, field dust, and oil vapor.
• Extensive Multi-Brand Applications: Broad compatibility spanning classic wheeled, narrow vineyard, and crawler tractors across Fiat Agri, Ford, Lamborghini, and Antonio Carraro platforms.

Technical Specifications & Dimensions

Equipment Compatibility & Tractor Application Guide

Manufacturer	Series / Classification	Supported Tractor Models
Antonio Carraro	Pomareiro Vinhateiro	3100-4, 3300-4, 3400-4, 3500-4
Fiat Agri	Series 46 & Series 56	55-46, 60-46, 65-46, 55-56, 60-56, 70-56
	Series 66 (Standard & Vineyard)	45-66, 45-66 S, 50-66, 50-66 S, 55-66, 56-66 S, 60-66, 60-66 F, 60-66 S, 65-66, 65-66 S, 70-66, 70-66 F, 70-66 LP, 70-66 S, 80-66, 80-66 F, 80-66 S, 466, 566, 666, 766
	Series 70 & Series 76	470, 570, 670, 45-76 V, 55-76 F, 55-76 V, 60-76 F, 70-76 F, 70-76 LP, 70-76 V, 80-76 F
	Series 80	580, 680, 780, 880, 980, 1180, 1280, 1380, 1580
	Series 86 & Series 88	50-86 S V, 50-86 V, 62-86 F, 55-88, 60-88, 65-88, 70-88, 80-88
	Series 90	55-90, 60-90, 65-90, 70-90, 80-90, 85-90
	Series 93 & Series 94	60-93, 65-93, 72-93, 82-93, 88-93, 60-94, 65-94, 72-94, 82-94, 88-94
	Series 311 → 556	411, 412, 421, 446, 474, 511, 512, 556
	Series 355 → 955 (Crawlers)	455, 465, 505, 555, 565, 605, 655, 765, 855, 955
	Diamante & L Series	415, 615, L 60, L 65, L 75, L 85, L 95
	Nastro D'Oro Series	400, 420, 440, 450, 460, 480, 500, 540, 550, 600, 640, 650, 1000, 1300
	TK Crawler Series (F, M, V)	55-65 F/M/V, 55-75 F/M/V, 55-85 F/M/V, 60-65/M/V, 60-75/M/V, 60-85 F/V, 62-85/M, 70-65/M, 70-75/M, 72-85/M, 80-65, 80-75, 82-85, 85-55, 88-85
	Ford	Series 30 & Series 35	3230, 3830, 4030, 4230, 4430, 3435, 3935, 4135
	Lamborghini	Series 300, 500, 600, 700	345, 550, 600, 660, 674, 700, 774, 775
Series 900 & Series 1000		956-100, 1106, 1306, 1506, 1706
C Series (Crawlers)		C 352, C 503, C 554, C 583, C 603, C 653, C 664, C 674, C 683, C 684, C 754, C 784
Crono & Formula Series		Crono 554-50, Crono 564-60, Crono 574-70, Formula 105
Grand Prix Series		Grand Prix 674-70, Grand Prix 774-80, Grand Prix 874-90T
R 200, R 500, R 600 Series		R 235, R 550, R 573-60N, R 574-60N, R 613, R 653, R 660, R 683, R 684
R 700 & R 800 Series		R 714, R 724, R 784, R 854, R 874
R 900 & R 1000 Series		R 955, R 1056, R 1156, R 1256, R 1556

Installation Advice & Workshop Notes: Always disconnect the negative battery cable before starting the replacement. Seat the alternator firmly onto the 73.0 mm engine mounting lug, ensuring the 10.2 mm pivot bolt slides smoothly without binding. Mount the tensioning bolt through the 11.0 mm adjuster hole (80.0 mm radius). Check axial belt alignment inside the 82.0 mm pulley before tightening fasteners. Set the 9.7 mm V-belt tension to allow roughly 10-15 mm of deflection along the longest span. Securely seat the multi-pin connector plug, verifying that female terminals in the original wiring harness are clean and free of corrosion.