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JCB 320/04186 is an oil pump for the JCB Dieselmax 444 and 448 engines in 3CX and 4CX backhoe loaders. This aftermarket version is made to the same mounting and connections as the original, so it fits 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 | Oil Pump |
| Replaces | JCB 320/04186 |
| Also listed as | JCB 320/04131, 320/04300 |
| Fits | JCB Dieselmax 444 and 448 engines in 3CX and 4CX backhoe loaders |
| Condition | New, aftermarket |
| Stat. HS-Code | 841330 |
JCB machines
Check the part number on your old unit before ordering.
| JCB Part No.(SPM Part No.) | Fits |
|---|---|
| 320/04186(SPM-HEP-2470) | JCB Dieselmax 444 and 448 engines in 3CX and 4CX backhoe loaders |
Low oil pressure
A warning light or low gauge reading with the right oil level and a good sender often means a worn oil pump.
Engine rebuilds
Fit a new oil pump whenever the engine is rebuilt or the bearings are changed. Worn gears undo a fresh rebuild.
Noise from the bottom end
Rattles at start-up while the pressure builds are a sign the pump is not priming quickly enough.
Fitting tips
Prime the pump with clean oil, fit new gaskets and O rings, and check the pickup screen before closing up.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay, aftermarket seller | USD 50.34 | 5 Oct 2026 |
| FridayParts | USD 109.99 | 9 Oct 2026 |
| Holdwell | USD 118.00 | 7 Oct 2026 |
| Buy Machinery Parts | USD 150.24 | 7 Oct 2026 |
| YEM Parts | USD 158.20 | 7 Oct 2026 |
| MyMroMarts | USD 218.96 | 7 Oct 2026 |
| Spare Part Mart | USD 40.27 | Today |
Our price of USD 40.27 is 20% to 82% 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.
No. It is an aftermarket part made to fit in place of JCB 320/04186. It is not made by or affiliated with JCB; the JCB part number is used only to show what it replaces.
It fits JCB Dieselmax 444 and 448 engines in 3CX and 4CX backhoe loaders. Machines change parts between serial number ranges, so check the number on your old part or in your parts manual.
It is made to the same mounting and connections as the original part. Fit new gaskets and seals where they are used, and check for leaks and correct operation before putting the machine back to work.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Prices depend on your ZIP or postcode.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
