Genuine Mazda Oil Pump Drive Sprocket • LF01-14-143A

Genuine Mazda LF01-14-143A Oil Pump Drive Sprocket

Replacement Genuine Mazda oil pump driven sprocket for Mazda MX-5 Mk3, Mk3.5 and Mk3.75 / NC models with 1.8L and 2.0L petrol engines from 2005 to 2015 listed in the compatibility table.

This toothed sprocket forms part of the engine's chain-driven oil pump system. The oil pump drive chain runs around the sprocket and transfers engine rotation to the oil pump, allowing pressurised engine oil to circulate through the lubrication system.

Reliable oil pump operation is essential for supplying oil to the crankshaft bearings, connecting-rod bearings, cylinder head, camshafts, timing components and other lubricated engine surfaces.

This listing supplies one Genuine Mazda oil pump driven sprocket. One LF01-14-143A sprocket is fitted per engine.

Replacement is normally considered during an oil pump, oil pump chain or lower-engine rebuild, or where inspection identifies worn or damaged sprocket teeth, abnormal chain-running marks, damage around the mounting bore or excessive wear within the oil pump drive system.

• Part type: Oil pump driven sprocket / oil pump drive gear
• Primary use: Transfers rotation from the oil pump drive chain to the oil pump
• Location: Lower engine / oil pump drive assembly
• Engine applications: Mazda MX-5 NC 1.8L L8-DE and 2.0L LF-VE
• Drive type: Chain-driven
• Quantity per engine: One
• Quantity supplied: One sprocket
• Brand: Genuine Mazda
• Part No.: LF01-14-143A
• Also referenced as: LF0114143A
• Earlier Mazda references: LF01-14-143 and 1F20-14-143
• Associated component: Oil pump drive chain
• Fitment note: Suitable for the confirmed Mazda MX-5 applications shown in the compatibility table

Fitment advice: Confirm that the engine retains the original Mazda oil pump and chain-drive arrangement. Inspect the original sprocket, oil pump drive chain, chain tensioner or guide components and associated crankshaft drive components together, as wear within one part of the drive system can affect the others.

Other items to consider: When changing this part, you may also want to consider purchasing the oil pump drive chain, oil pump chain tensioner, oil pump assembly, front crankshaft oil seal, timing cover sealant, sump sealant, engine oil and oil filter.

Useful tools / consumables: Engine support equipment where required, crankshaft pulley holding and removal tools, socket set, breaker bar, calibrated torque wrench, seal-removal tools, gasket-surface cleaning equipment, engine assembly lubricant and the Mazda-specified timing-cover and sump sealant.

Difficulty guide: DIY Difficulty: Advanced. Access generally requires substantial dismantling of the front and lower engine assemblies. Correct chain routing, component alignment, sealing-surface preparation and fastener tightening are essential.

Why Genuine Mazda? Genuine Mazda oil pump drive components are manufactured to the intended tooth profile, dimensions, material specification and alignment requirements. Using the correct OE sprocket helps maintain proper chain engagement, accurate oil pump drive and compatibility with the original Mazda oil pump and chain components.

What’s in the box: One Genuine Mazda oil pump driven sprocket, part number LF01-14-143A. The oil pump chain, tensioner, oil pump, mounting hardware, seals and lubricants are not included.

Installation notes: Inspect all adjoining oil pump drive components before installation. Lubricate the sprocket and chain with clean engine oil during assembly, confirm correct chain engagement and follow the applicable Mazda workshop procedure for component alignment and tightening. Clean and reseal any disturbed timing-cover or sump mating surfaces using the specified sealant, then confirm engine oil pressure after completing the repair.