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Alternator

FAQs

Three matches: (1) electrical specification — voltage (12V or 24V) and rated output current (must match or exceed the equipment's electrical load); (2) physical fitment — mounting style, pulley type, rotation direction, and overall dimensions; (3) regulator and connection — internal regulator vs external, and the connector type at the alternator terminals. The OEM part number on the original alternator is the fastest match; WhatsApp 07754288583 with the equipment details and a photograph if cross-reference is needed.

The original alternator's rated current is the baseline. Add 10-25% margin if the equipment has been retrofitted with additional electrical load (auxiliary lights, beacons, electric heating, accessory wiring). Under-rated alternators won't keep the battery charged under heavy load and the equipment will run progressively flatter. Over-rated alternators are typically fine — they don't force more current than the load draws. The rated current is listed on every product page.

Alternator rotation direction is set by the rectifier diode arrangement and the cooling-fan blade pattern. A clockwise alternator running counter-clockwise will not generate output (rectifiers are reverse-biased) and the cooling fan will work backwards (overheating the alternator). Match the rotation direction to the equipment — viewed from the pulley end, clockwise (CW) or counter-clockwise (CCW). The rotation is listed on every alternator product page.

Yes. Replacement alternator pulleys (matched by groove count, belt size, and bore), mounting brackets, and harness adapters (where the new alternator's connector differs from the original) are available across the alternator range. For retrofit applications where the alternator is being upgraded to higher output, pulley and bracket changes may be needed to match the new alternator's physical specification. Search by the alternator part number, or WhatsApp 07754288583.

Every product is backed by our Fit Guarantee. If a part is incompatible with your machine, you can return it hassle-free. For damaged-on-arrival items, report within 24 hours with photographs to [email protected] — we will arrange collection. For other returns, email us first to obtain a Return Merchandise Number before sending. Returns are accepted within 30 days of purchase, in original packaging, on UK orders. A restocking fee may apply on returns where the buyer has changed their mind. Refunds are issued to the original payment method once the return is inspected.

Delivery time depends on the product, your destination, and availability — the estimated time for any item appears on the product page, and "Check where we deliver" confirms coverage for your postcode before you order. Next-day delivery is available on most products; the option appears at checkout when applicable. We deliver across the UK, Europe, the Middle East, and Africa. Use the country selector at checkout to confirm coverage and delivery options for your destination.

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Other Alternator

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Within Alternator, Other Alternator covers the replacement alternators cross-referenced for plant, agricultural, and commercial-vehicle equipment outside the main equipment-make-specific sub-categories — typically for less-common equipment makes, older equipment models, or specialist applications where the alternator doesn't fit one of the named equipment-make sub-sections.

Parts for Machines supplies replacement alternators across the off-highway aftermarket, with cross-reference by equipment make, model, year-range, and OEM part number. The Other Alternator sub-section covers the equipment makes outside the main named sub-sections (which include Kubota, Caterpillar, Bobcat, Allis Chalmers, Case, and others) — picking up specialist agricultural, plant, and industrial-vehicle applications.

Product pages list the operating voltage (typical 12V or 24V to match the equipment's electrical system; some industrial applications use 48V), the rated output current (in amps — typical 35-200 amps depending on equipment size), the rotation direction (clockwise or counter-clockwise as viewed from the pulley end — must match the equipment's rotation), the pulley specification (single, double, or multi-V groove pulley; or smooth pulley for serpentine-belt-driven engines), the mounting style (bracket-and-pivot mount, slotted-mount, ear-mount), and the regulator type (internal regulator with built-in voltage control on most modern alternators; external regulator on some older specialist applications).

For replacement of an existing alternator, the OEM part number is the most reliable match. Where the OEM number isn't available, identify by equipment make, model, year, and the alternator's measured specifications (output current, voltage, rotation, pulley type, mounting). Many equipment makes share alternator fitments — a successful cross-reference may return alternatives from other equipment ranges. Reconditioned and remanufactured alternators (rebuilt to OEM specification with new bearings, brushes, and rectifier components) are available alongside new alternators on selected fitments — typically at a lower price point with a full warranty. Trade pricing on bulk and fleet orders is available; contact the team via WhatsApp 07754288583.

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Alternator for Denso OEM, Ref - 0210005670

Manufacturer	Denso
Design	Er/Ef
Voltage	12
Amperage	35
Rotation	Clockwise

£63.46 £62.22

2% OFF

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How do I match a replacement alternator to my equipment?

What output current do I need?

Why does rotation direction matter?

Can I get the matching brackets, pulleys, and harness adapters?

What if the part doesn't fit or arrives damaged?

How quickly will I get my order and where do you deliver?