MAPerformance Rear Main Seal Housing | EcoBoost 4 Cylinder Engines (EBM-RMH)
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EcoBoost 4 Cylinder Rear Main Seal Housing by MAPerformance
One of the most common issues we have seen when it comes to the 4 Cylinder Ecoboost engine has been the leaking rear main seal. Stock and modified motors seem to all fall to the same fate of a warped or worn seal. We have replaced the flimsy stamped factory piece that has a non-replaceable hard seal, with a 6061 Aluminum seal housing, and replaceable seal. Not only will this prevent the oil leaks, but it also offers the ability to service it with replaceable parts, and stiffens the rear of the block.
Please Note: This will not work with Competition Clutch dual clutch kits.
Features
- Stiffer Billet Rear Housing that will resist warping
- Replaceable Seal
Benefits
- Easy to install
- Wider seal contact area
- Stiffens the rear of the block
Applications
- 2015 - 2021 Ecoboost Mustang
- 2013 - 2018 Focus ST
- 2016 - 2018 Focus RS
- 2.3L Ford Duratec Engines
- 2.0L Ford Duratec Engines
- 2.5L Ford Duratec Engines
- 2.3L Ford Ecoboost Engines
- 2.0L Ford Ecoboost Engines
- 2.0L Mazda MZR Engines
- 2.3L Mazda L3 Engines
- 2.5L Mazda L5 Engines
What's In The Box?
- 1 - MAP Billet Rear main seal housing with rear main seal installed
- 2 - 110 Viton O-rings
- 4 - M6x16 Allen bolts
- 2 - M6x1.0x18 Allen bolts
References
Warranty
- MAPerformance Limited Lifetime Warranty
Customer Reviews
Just want to thank MAP for quickly delivering a sure fire solution to the messy oil leak I had with the factory seal.
This is a must have mod! Highly recommend it
Order this rear main seal for my 2013 Mazdaspeed3. The fitment was perfect. It looks great but most importantly it sealed like it should. Would definitely recommend this part to friends.
Rear main seal was easier to install than the factory one. Factory rear main seal requires a special sleeve tool to install, where this one does not. Remember to use thread sealant with the flywheel bolts if you are reusing them.
I gotta say the quality of the product is so amazing I found myself staring at it. Looks so much better than the OEM piece and you can feel that its much stronger and will last longer.
