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All parts shown here are brand new, high-quality OEM, After-market, or Genuine. Our inventory extends beyond online listings, growing daily.

If you don’t find what you’re looking for, just ask – we can help! With 10,000+ parts in stock and a global supplier network, we’ve got you covered. Buy online now for prompt delivery!

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At ProPart we have 1000's of second-hand parts in stock.

John Deere 6003 Series models supported

6403 6603

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Horn-tooting for ProPart

Your secret weapon in breakdown tractor parts.

"I own a few older tractors that my local tractor dealer was having no luck finding parts for. I was told about ProPart, so I gave them a call to see if they would have any luck. So far the guys at ProPart have found everything that I’ve asked for and have been very easy and good to deal with as well as follow up calls. Many thanks ProPart."

“I have a rare machine for my area. In my community vendors with knowledge and access to parts are also rare. The team at ProPart Ricambi has gone the extra mile several times in researching parts for this machine, with much success. ProPart Ricambi’s prices are fair. Replies to requests are prompt and a pleasure to communicate with. I very much appreciate what ProPart Ricambi have to offer."

"ProPart Ricambi couldn’t have been more helpful or efficient when it came to parts for our tractor. Dean was super helpful and explained the benefits of using new improved parts rather than second hand ones which could have caused further problems. We would definitely use them again and highly recommend."

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John Deere 6003 Series models supported

Dive in and shop thousands of parts.

Immediate shipping worldwide

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Extended warranty

Your secret weapon in breakdown tractor parts.

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Flanged Bolt M8x20

Flywheel Bolt

Front Axle Yoke

Front Fender Bracket

Fuel Filter Plunger Kit

Fuel Non-Return Valve

Fuel Sensor Switch

Graphite Head Gasket

Grommet

Group Seal

Gudgeon Bush

Head Lamp

Heat Panel

Leak-Off Plug w/ Sleeve

Levelling Box Assy

Light Holder

John Deere 6003 Series models supported

Dive in and shop thousands of parts.

Immediate shipping worldwide

Flexible return policy

Extended warranty

Your secret weapon in breakdown tractor parts.

Need some questions answered?

Contact us

Contact us AUS

Business hours

Quick links

Follow us

Product enquiry

Parts for the tractor, socks for the feet.

Score a FREE PAIR of our 2026 limited edition bamboo socks, with every order over $250*

Hi! Did you know we've got a sale on?

It's our biggest sale EVER, with 20-60% off 1000's of quality parts.