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New Holland 504271461 is the 12 volt alternator with a multi rib (poly V) pulley, cooling fan, cast aluminium housings, a two foot mounting and a rear mounted regulator with a two pin plug lead. It is used on New Holland T5040 to T5070 tractors. This aftermarket version has the same mounting and electrical connector as the original, so it plugs in and bolts on where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Alternator |
| Replaces | New Holland 504271461 |
| Machine | New Holland T5040, T5050, T5070 tractors |
| Pulley | Multi rib (poly V) |
| Regulator | Built in, rear mounted, two pin plug |
| Fits | New Holland T5040, T5050 and T5070 tractors |
| Condition | New, aftermarket |
| Stat. HS-Code | 851150 |
| Country of Manufacture | China |
New Holland machines
Check the part number on your old unit before ordering.
| New Holland Part No.(SPM Part No.) | Fits |
|---|---|
| 504271461(SPM-HEP-4753) | New Holland T5040, T5050 and T5070 tractors |
Battery not charging
A charge warning light or flat batteries every morning point to the alternator once the belt and wiring check out.
Noise
A worn bearing whines or grinds.
Low voltage at idle
Weak output shows as dim lights and slow electrics at idle.
Fit with a new belt
Change the belt and check the tensioner when fitting the alternator.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| SINOCMP | USD 349.00 | 31 Oct 2026 |
| eBay, aftermarket seller | USD 506.99 | 31 Oct 2026 |
| Spare Part Mart | USD 212.00 | Today |
Our price of USD 212.00 is 39% to 58% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it was made for the New Holland T5040, and 2 more listed under compatible equipment. Check the old alternator is marked 504271461 or one of the cross references, because makers change parts between serial ranges.
On the New Holland T5040, typically 5,000 to 10,000 hours, depending on how often the machine is started and how well the batteries are kept.
A charge warning, low battery voltage with the engine running, flickering lights or bearing noise.
Check the old unit before you send it away. Pulleys and fans are often fitted to suit the machine and have to be moved across.
Check the exciter or D+ wire, the sense wire and the belt tension. A missing excite feed is the most common reason a good alternator does not charge.
No. It is an aftermarket alternator made to replace the New Holland 504271461. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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