Forklift Oil Pump
Categories
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Forklift Maintenance Parts
Forklift Hand Oil Pump MIT F18B S4S – Manual Fuel Primer
$4.00 Add to cart -
Forklift Maintenance Parts
Forklift Manual Fuel Pump Z-8-94367-293-3 – C240PKJ 4JG2
$21.99 Add to cart -
Forklift Maintenance Parts
Isuzu Diesel Oil Pump 8-94114-491-1 – 4BC2 4BE1 4BD1 Forklift Excavator
$28.00 Add to cart
Forklift Oil Pump: Engine Oil Pumps & Manual Hand Primer Pumps for Diesel & LPG Engines
A forklift oil pump is the engine-driven component that circulates pressurized engine oil through the main bearings, connecting rod bearings, camshaft journals, and valve train — providing the hydrodynamic oil film that prevents metal-to-metal contact in all rotating engine assemblies. On diesel and LPG forklift engines (Isuzu 4BC2/4BE1/4BD1, Mitsubishi F18B/S4S, Nissan C240PKJ, Toyota 4Y/1DZ/2Z), the oil pump is typically gear-driven from the crankshaft or camshaft and operates at engine speed — a worn oil pump with reduced output pressure causes progressive bearing damage that may not produce audible symptoms until catastrophic engine failure occurs. Also included in this category are manual hand primer pumps used for pre-start fuel system priming on diesel engines, which are mechanically distinct from the main engine oil pump but serve a critical starting function.
Kingstream supplies engine oil pumps and manual hand pumps for Isuzu, Mitsubishi, Toyota, and Nissan forklift engines with OEM flow rate and pressure relief specifications.
When to Replace / Common Symptoms:
• Low oil pressure warning light activates at operating RPM → Worn oil pump or blocked pickup — diagnose immediately
• Engine oil pressure gauge reads below specification → Pump gear wear or pressure relief valve stuck open
• Metallic particles visible in oil filter during oil change → Pump gear or bearing material — replace pump and flush engine
• Engine knocking or ticking noise that increases with RPM → Oil starvation from failed pump — severe engine damage imminent
• Manual hand pump does not build fuel pressure → Worn pump diaphragm or check valve — replace primer pump
OEM Cross-Reference / Available Models:
| Part No. / SKU | Type | Engine | Application |
|---|---|---|---|
| 8-94114-491-1 | Engine Oil Pump | Isuzu 4BC2 / 4BE1 / 4BD1 | Forklift & Excavator Diesel Engines |
| HAND-OIL-PUMP | Hand Primer Pump | MIT F18B / S4S | Diesel Forklift Fuel System Priming |
| MANUAL-FUEL-PUMP-C240 | Manual Fuel Pump | Nissan C240PKJ / 4JG2 | Diesel Engine Fuel Priming |
Don’t see your engine? Send us your engine model and part number →
Compatible Forklift Brands & Engines:
Isuzu 4BC2/4BE1/4BD1, Mitsubishi F18B/S4S, Nissan C240PKJ/4JG2, Toyota 4Y/1DZ/2Z, HELI, Komatsu, CAT
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Engine, brake, hydraulic, electrical, steering & axle, cooling system, transmission, and maintenance parts — one partner for all your forklift spare parts needs.
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