1 Set for MK1 MK2 Golf Gearbox Inspection Plug/Cap 020301129D 02

The inspection plug in a Golf gearbox is a small thing that becomes a large problem once it perishes. The plastic goes brittle with age and heat, the seal stops sealing, and you end up with oil weeping down the bellhousing and a gearbox slowly running itself low.

Sold on the number, because the description says nothing about fitment

Worth being blunt here. The supplier's own text covers material, size and colour and does not mention a single vehicle. Everything to do with fitment comes from the product title, which names the MK1 and MK2 Golf and gives the part number 020301129D. A trailing "02" follows that number in the title, and it is not clear whether it belongs to the part number or is a separate reference, so both are published exactly as supplied. Treat them as a matching aid for identification rather than a statement about who manufactured the part, and compare against the number on your own gearbox housing.

A part worth doing while you are already under there

Nothing about a plug like this wears out in a way you can watch. It simply hardens, and the first sign is usually a damp patch rather than a proper leak. Because the part costs little and the labour is whatever access you already have, it makes sense to change it at the same time as a clutch, a gearbox oil change or any other job that already has the car in the air. No thread size or seal specification is published, so the number and the photographs are what you have to match on.

Key features

• Moulded plastic: the material stated by the supplier, in a black and green finish.
• Sold as a set: listed as one set, though the supplier does not itemise what the set contains.
• Reference published as supplied: 020301129D 02, reproduced exactly as it appears in the listing.
• Compact: 11.5 x 4.5 cm, with a 5-10 mm tolerance the supplier declares on its own measurements.

Specifications

• Part number from the title: 020301129D 02
• Listed fitment from the title: Golf MK1, Golf MK2
• Material: plastic
• Size: 11.5 x 4.5 cm, supplier states a 5-10 mm measuring tolerance
• Colour: listed as black/green
• Pack: 1 set, contents not itemised
• Thread size, seal type and gearbox codes: not published by the supplier

Worth knowing first

• The colour is listed as black/green and the storefront carries a single option, so take it as whatever the set ships with rather than a choice you get to make.
• No thread size or O-ring specification is given. Match the part number or measure your existing plug.
• The supplier notes that the photographs do not represent actual size, so go by the 11.5 x 4.5 cm figure.
• The supplier gives no fitment information at all. If your number does not match, do not assume it will fit.

A cheap thing to have on the bench if the car is already up on stands. Check your number against the photographs before ordering.

Returns, Refunds and Replacements

Products that are received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with the Australian Consumer Law (ACL). We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. However, please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations.

Delivery Timeframe

Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows:

• For customers in Victoria, approximately 7-10 working days;
• For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days;
• For customers in WA, NT, and TAS, approximately 9-12 working days.