0434632 Evinrude Johnson Lower Rubber Engine Mount Assembly 75-300HP | Genuine OEM BRP Outboard Part

🔧 Product Description

Genuine BRP Evinrude Johnson Lower Rubber Engine Mount Assembly - Part Number: 0434632

A genuine BRP lower rubber engine-mount assembly for selected Evinrude and Johnson 75HP-300HP outboards.

The mount is installed between the exhaust housing and the steering or swivel-bracket structure. Its bonded rubber-and-metal construction controls engine movement while isolating normal powerhead vibration and absorbing propulsion loads, gear-selection shock and impacts transmitted through the lower unit.

Most compatible installations use two lower mounts, with one fitted to each side of the exhaust housing.

⚙️ Key Features

• Genuine BRP Evinrude Johnson OEM engine mount
• Correct OEM part number 0434632
• Common unprefixed number 434632
• Lower exhaust-housing mount position
• Bonded rubber-and-metal construction
• Helps control fore-and-aft and lateral engine movement
• Reduces vibration transferred to the steering and transom brackets
• Suitable for selected carburetted, FICHT and E-TEC outboards
• Commonly requires two mounts per engine

🚤 Compatibility

Commonly used on selected

• 75HP three-cylinder outboards
• 90HP V4 outboards
• 100HP and 105HP outboards
• 115HP and 130HP V4 outboards
• 135HP-175HP V6 outboards
• 185HP-235HP V6 outboards
• 250HP and 300HP high-horsepower outboards
• Carburetted two-stroke engines
• FICHT direct-injection engines
• Selected Evinrude E-TEC engines
• 20-inch, 25-inch and 30-inch exhaust-housing applications where 0434632 is specified

Verified application examples include selected

• 1980s V4 and V6 carburetted engines
• 1990s 90HP-300HP Evinrude and Johnson outboards
• 2000-2003 75HP FICHT engines
• 2003 135HP FICHT engines
• 2005-2007 175HP and 225HP E-TEC engines
• Later 90HP and 150HP E-TEC exhaust-housing assemblies

Important fitment note

• Confirm the full engine model number, shaft length and exhaust-housing diagram.
• Many applications require two mounts per engine.
• Do not mix different mount part numbers or stiffness specifications on opposite sides unless the BRP parts diagram specifically permits it.
• Mount covers, retaining screws, washers and lockwashers are separate unless specifically included.

🔌 Function

The lower mounts connect the exhaust housing to the swivel-bracket structure while allowing controlled rubber movement.

They help

• Maintain powerhead and gearcase alignment
• Limit excessive engine movement during acceleration
• Absorb shock when forward or reverse gear is selected
• Reduce vibration transferred into the transom
• Stabilise steering response
• Protect the exhaust housing and mounting brackets from impact loads

Installation considerations

• Support the outboard securely before removing mount hardware
• Inspect both lower mounts and the upper mount
• Replace lower mounts as a matched pair where practical
• Check the mount covers for cracks or corrosion
• Inspect mounting screws, washers and threaded holes
• Remove corrosion and scale from the mount pockets
• Do not damage the bonded rubber during installation
• Do not apply petroleum-based lubricant to the rubber
• Use the specified marine corrosion protection on approved metal surfaces
• Follow the correct tightening sequence and torque specifications
• Confirm unrestricted steering and tilt movement after installation
• Recheck engine movement before returning the boat to service

⚠️ Common Signs of Failure

• Excessive engine movement inside the swivel bracket
• Clunk during acceleration or deceleration
• Engine shifts noticeably when selecting gear
• Steering feels loose or inconsistent
• Rubber separates from the metal plates
• Rubber is cracked, swollen or compressed
• Lower mount covers are damaged
• Mounting screws loosen or corrode
• Exhaust housing sits unevenly
• Increased vibration is transmitted to the boat
• Propeller thrust causes visible midsection movement

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 0391710
• 391710
• 0434632
• 434632

OEM / Related Numbers

• 0767508
• 767508
• OEM Description: Mount Assembly, Rubber
• Alternate Description: Rubber Mount, Lower
• Alternate Description: Lower Engine Mount
• Related lower-mount covers and retaining screws vary by engine model

Aftermarket / Verified Equivalents

• No aftermarket equivalent

Service alternatives

• Genuine new-old-stock BRP mounts
• Serviceable used OEM mounts with intact rubber-to-metal bonding
• Professionally sourced OEM replacement pairs

Important cross-reference note

• Parts catalogues use both standard and high-performance descriptions for mounts within this family.
• Select the mount by the exact OEM number and engine parts diagram rather than by stiffness description alone.
• Part number 0434629 belongs to a separate lower-mount family and is not an automatic substitute for 0434632.

📦 Condition

• Genuine BRP Evinrude Johnson OEM part
• Brand new
• Supplied as one lower rubber mount assembly
• Two mounts may be required for a complete engine installation
• Mounting covers and hardware included only when specifically stated
• Supplied in genuine or equivalent protective packaging