Botter Manufacturing
BMW E30 Convertible Hardtop Support Plugs
BMW E30 Convertible Hardtop Support Plugs
End of season sale! Use code GARAGEQUEEN15 at checkout for 15% off! Please allow for up to 3 days lead time before your order ships. Free Shipping on EU Bound Orders of 80€+!
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Introducing our reproduction convertible hardtop support plugs, compatible with the E30 convertible chassis.
There are many issues with the original plugs: they have an irregular shape that seems to not look good in any position, the original rubber of the plugs degrades after many years in the sun, and they always pop out and get lost, leaving behind an exposed hardtop mounting post. We wanted to fix all of these issues with our offering.
Product Details:
- Quick, spin-in-place install through the use of an embedded stainless steel pin that will not wear out quickly or rust from the outdoor elements.
- Hand-sanded and painted edges for a finished look (none of our competitors do this).
- Clean, boxy design to eliminate the odd-looking design of the original plugs.
- Intuitive fitment. These only install in one direction, unlike the original plugs.
- Built-in rubber spring to ensure a snug fit on your E30.
- Features a matte and textured finish, which pairs very well with our Hatch and Tonneau Cover trims.
- FITMENT NOTE: Please see the following photo for fitment details. Our hardtop support plugs only fit into the "twist in" style hardtop mounts. Most E30 convertibles have the twist in style of mounts, but some do not.

- Made using high-quality heat-resistant ASA plastic.
“Left” side replaces OEM part numbers: 51431942787 , 51-43-1-942-787 , 51 43 1 942 787 , 51.43.1.942.787
“Right” side replaces OEM part numbers: 51431942788 , 51-43-1-942-788 , 51 43 1 942 788 , 51.43.1.942.788
This is a reproduction part that we designed from scratch to serve as a replacement for the original part. We are not affiliated with any original equipment manufacturers.
Click here to watch the installation how-to video for this product!
Our hardtop plugs pair nicely with a fresh set of our re-engineered E30 convertible hatch trim covers and tonneau cover trims. Click on the pictures or links below to check them out! If you'd like to purchase all of our convertible trims as a bundle and save 20%, please check out our E30 Convertible Trims Bundle.
Shipping Policy
Shipping Policy
Order processing times
After your order is placed, it can take up to 5 days for us to make your product(s) before they ship. We maintain some stock on specific products, but many of our products are made to order.
Free shipping & shipping costs
All orders over 80€+ qualify for free shipping. This is automatically applied at checkout. For all lesser order values, shipping is automatically calculated for your selected products based on your region. Any applicable taxes & duties shall be payable by the buyer upon receiving the package.
USA Tariffs
The current Tariffs between USA and Germany apply to all of our products. We pay this tariff on our side, so all customers in the USA can shop with the comfort of knowing that they will not need to pay any tariffs upon receiving their package.
Duties & Clearance Fees
All applicable duties or clearance fees levied by the customer's destination country (outside of the European Union) must be paid by the customer upon receiving the product(s) and are additional to what is paid at checkout.
Our products are currently all manufactured and shipped from Germany. As a German registered business, we are obliged to collect and remit 19% VAT on all orders that will be delivered within the European Union (EU). Prices are dynamically adjusted for customers within the EU to include the VAT. All customers not located in the EU may have to pay local tax upon receiving their package, we do not collect this at checkout.
Shipping costs for returns
In the case of a return, the original shipping cost from your order will not be refunded. Buyers are responsible for all return shipping costs. Please see our Return Policy.
Hassle-Free Replacements or Returns
Hassle-Free Replacements or Returns
We offer hassle-free replacements or returns. We work one-on-one with any customer who has an issue with their order(s). If you have any issues, please Contact Us, and we will work out a solution with you. We look after our customers on a personal level, no matter the circumstance.
If you would like to withdraw from an order that you placed with us, you may do so using the "Order Withdrawal Form" button located on the footer of our website's navigation. You can also access it at this link: https://bottermanufacturing.com/pages/eu-withdrawal-form
Customer Testimonials & Reviews
Customer Testimonials & Reviews
Are you looking for that extra bit of confidence to justify your purchase? Don't just take our word for it, hear what our customers have to say about us!
Terms and Conditions - Product Use
Terms and Conditions - Product Use
TERMS AND CONDITIONS - PRODUCT USE
Botter Manufacturing products are designed for off-road use only. All products are never intended to be used on public roadways. Botter Manufacturing is therefore not liable for any damages caused to property, vehicles, persons, the environment, or any other entity through the use of our products on any roadway or road course. By purchasing product(s) from Botter Manufacturing you agree to use our products according to the above terms.
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Products came well packaged. Kept informed from start to finish where parcel was at and taxes already payed as parcel was coming from Canada. Will purchase again and Products fitted perfectly.
I bought the hard top support plugs and wow they an absolute treat tidy and secure , great research and from lar from botter manufacturing 5 stars from the uk 👍🏽
Highly recommend
Perfect fit and great quality. Better than the original.
Lars has come up with so many e30 innovations. He is a great asset to our community.



