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Description
Mosselman Twin Oil Cooler Extension Kit - E8x 135i, 1 Series M (1M)Mosselman Turbo Systems is a Dutch manufacturer of high quality performance parts designed specifically for use in BMW and MINI cars. Mosselman has been in the tuning business for over 40 years and the vast majority of their products has been designed, tested and manufactured in house. If you own a BMW or MINI, they are a specialist in these makes. PRODUCT INFORMATION THE NEXT LEVEL OF TEMPERATURE CONTROL Mosselman Twin Oil Cooler Extension Kit for
Mosselman Turbo Systems is a Dutch manufacturer of high-quality performance parts designed specifically for use in BMW and MINI cars. Mosselman has been in the tuning business for over 40 years and the vast majority of their products has been designed, tested and manufactured in-house. If you own a BMW or MINI, they are a specialist in these makes.
PRODUCT INFORMATION
THE NEXT LEVEL OF TEMPERATURE CONTROL
Mosselman Twin Oil Cooler Extension Kit for the E8x 135i and E82 1 Series M (1M). Upgrade your Single Oil Cooler Kit to a Twin Oil Cooler Kit.
-
The Twin Cooler Extension Kit comes with
1x Setrab 19-row oil cooler.
1x Pre assembled stainless steel bracket for the left side.
1x Complete mounting bracket for the left cooler.
1x Hose kit.
-
Warm Climate and Track use
We recommend the Twin cooler setup for cars in very warm climates and cars that are used on a track.
Installation instructions come with kit
Suitable for E82 135i Coupe, E88 135i Convertible and E82 1 Series M (1M) models fitted with N54 or N55 engine.
Suitable for E82 135i Coupe, E88 135i Convertible and E82 1 Series M (1M) models fitted with N54 or N55 engine.
EXPERT'S ADVICE
"Upgrade the Single Oil Cooler Kit of your BMW 1-Series E8x to a Twin cooler setup with this Twin Cooler Extention Kit E8x. The twin setup is recommended for cars in a very warm climate and cars that will be used on a track.
The Twin Extension kit comes with the 1x Setrab 19 row oil cooler, 1x stainless MSL bracket, 1x Mounting bracket, and a hose kit (1 oil hose).
Note: This item is not ''plug-and-play''. You will need to make some adjustments to the car to fit the bigger oil cooler and bracket. Additional OEM products that you need for the installation are: oil cooler front air duct (left), wheel arch air duct (left), inside wheel arch for the auxiliary cooler (left).
Installing the twin oil cooler extension on a BMW 1M requires some extra modifications to make the left oil cooler fit into the car. The 1M is equipped with an auxiliary water cooler on the left side of the car. This is the place where the second oil cooler needs to be installed. To make this fit the auxiliary watercooler has to be removed and probably a bigger radiator has to be installed. It will add extra time to the installation process. "
The Twin Extension kit comes with the 1x Setrab 19 row oil cooler, 1x stainless MSL bracket, 1x Mounting bracket, and a hose kit (1 oil hose).
Note: This item is not ''plug-and-play''. You will need to make some adjustments to the car to fit the bigger oil cooler and bracket. Additional OEM products that you need for the installation are: oil cooler front air duct (left), wheel arch air duct (left), inside wheel arch for the auxiliary cooler (left).
Installing the twin oil cooler extension on a BMW 1M requires some extra modifications to make the left oil cooler fit into the car. The 1M is equipped with an auxiliary water cooler on the left side of the car. This is the place where the second oil cooler needs to be installed. To make this fit the auxiliary watercooler has to be removed and probably a bigger radiator has to be installed. It will add extra time to the installation process. "
MARK HENDRIKX - AUTOMOTIVE ENGINEER AT MOSSELMAN
Models
- 1 Series / E82 / E88 (2007-2013) / 1 Series M (1M)
- 1 Series / E82 / E88 (2007-2013) / 135i N54
- 1 Series / E82 / E88 (2007-2013) / 135i N55
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Lovely and sturdy for what I needed!
Size: 3 Set 4-Tier, Planks Not Included, Size: 3 Set 4-Tier, Planks Not Included
We LOVE these shelving brackets! We were moving our books from our office space to turn that room into a nursery and I needed something that would be sturdy and off the floor since my books were moving to our living room. These are extremely sturdy, and also go with our curtain rods and other furniture that has this industrial style. The instructions for assembly are simple and easy to follow, I would just ensure you have an extra set of hands (this isn’t a one person job) we ordered the 3 pack, but ended up only needing the two for the space on the wall and they still hold the weight well.
Also this is a work in progress so please disregard that I don’t have the other two shelves here😂
Definitely a high quality and great looking alternative to some other brackets out there!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
★★★★★ 5
Shelf
Size: 3 Set 3-Tier, Planks Not Included
Bigger than I expected but very sturdy and looks great !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
Takes time to install right.
Size: 3 Pcs 5 Tier, Not included planks, Size: 3 Pcs 5 Tier, Not included planks
Saw a few complaints about this product in the reviews before ordering but gave it a shot anyways. Took a little longer than I would have liked to install, but was only time consuming, not difficult. I made sure at least 2 screws on each base plate were into studs so it's more than sturdy. Hung each of the 3 brackets by 1 screw, marked the rest of the holes, took it back off the wall, installed anchors where needed, and finally screwed each back up fully. And for the people saying that the threads don't line up once snug, try switching out a fitting or pipe so it's a different thread mesh. If that doesn't work, just over tighten the fitting. Furthest one I pushed was nearly 3/4 of a turn past finger tight. I don't have a single loose connection on the whole shelf. My wife can't wait for us to go to lowes tomorrow for the wooden shelves to finish off the bookshelf this will be for her.
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Reviewed in the United States on July 27, 2022
★★★★★ 4
Great product and price
Size: 3 Set 3-Tier, Planks Not Included
Nice quality product Great product
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Worth the money!
Size: 3 Set 3-Tier, Planks Not Included, Size: 3 Set 3-Tier, Planks Not Included
Such a good buy! High quality and easy to assemble. I will warn that hanging them is a little tricky (We read several reviews saying this and thought “they’re just dumb”, we were definitely wrong. I recommend installing/ attaching the middle level of plates first before attaching the tops and bottoms. It just made it easier for us to keep everything level throughout the process) but other than that very happy with this purchase! We hung three 12 inch boards inside and it added SO much storage and looks so nice! Definitely worth the money!
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Reviewed in the United States on August 18, 2025
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