REC86840A05 is a Recmar U-joint bellows kit for MerCruiser Bravo and Blackhawk sterndrive transom assemblies. The bellows protects the universal joint and driveshaft area while helping keep water out of the transom assembly.
This kit replaces the Mercury / MerCruiser 86840A05 and 8M0062406 bellows family and cross-references with Sierra 18-2756. It is used on Bravo I, Bravo II, Bravo III and Blackhawk drive applications.
This is the Bravo / Blackhawk U-joint bellows family. Alpha drive bellows are different.
Key Specifications
Spec
Details
Recmar SKU
REC86840A05
Product type
U-joint bellows kit
Drive family
MerCruiser Bravo / Blackhawk
Main OEM reference
86840A05
Included component
U-joint bellows with clamp
Function
Seals and protects the U-joint / driveshaft area
Engine / Drive Compatibility
Drive family
Models / applications
Notes
MerCruiser Bravo I
Bravo sterndrive transom assemblies
U-joint bellows position
MerCruiser Bravo II
Bravo sterndrive transom assemblies
U-joint bellows position
MerCruiser Bravo III
Bravo sterndrive transom assemblies
U-joint bellows position
MerCruiser Blackhawk
Blackhawk applications
Listed with Bravo bellows family
OEM and Cross References
Brand
Part number
Notes
Recmar
REC86840A05
Aftermarket replacement
Mercury / MerCruiser
86840A05
Main OEM reference
Mercury / MerCruiser
86840A3
Related OEM reference
Mercury / MerCruiser
8M0062406
Superseding / replacement reference
Sierra
18-2756
Aftermarket equivalent
Mallory
9-72702
Aftermarket equivalent
GLM
39140
Aftermarket equivalent
GLM
89140
Aftermarket equivalent
Attributes
Field
Value
Brand
Recmar
MPN
REC86840A05
Product category
Marine Sterndrive Bellows
Fits brand
MerCruiser
Fits drive
Bravo I, Bravo II, Bravo III, Blackhawk
Replaces OEM
86840A05, 86840A3, 8M0062406
Condition
New
Important Fitment Notes
Check before ordering
Why it matters
Bravo / Blackhawk drive
This bellows is for Bravo and Blackhawk transom assemblies
Alpha drive
Alpha U-joint bellows use different part numbers
U-joint bellows position
Exhaust bellows and shift cable bellows are separate parts
Clamp seating
Correct clamp placement is critical for water sealing
Shipping Information
All orders ship from the UK. Orders placed Monday–Thursday before 12:00pm are processed same day. Orders placed Friday after 12:00pm through Sunday are processed the following Monday. Processing times vary by stock location.
Out of stock items can be back-ordered with a typical 3–4 week lead time.
If an item shows "Dispatch Available Today" and you order after 2pm UK time, processing begins the next business day.
All times are in UK BST.
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